{"title":"Haldex Ecu 4.GEN.","description":"\u003cp\u003eDiscover our Haldex 4th generation ECU control units, available as new, remanufactured, and used. Compatible with VW, Audi, Skoda, Seat, Land Rover, Ford, and Volvo vehicles, each unit is tested for quality and reliability.  Original module ensure your Haldex system performs at its best. For rear differential\/haldex clutch.\u003c\/p\u003e","products":[{"product_id":"haldex-control-unit-0bs907554d-used","title":"0BS907554D Haldex control unit Used","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Used OEM 0BS907554D Haldex control unit for Gen 4 AWD. Original Continental module for Audi, VW, Skoda and SEAT vehicles with online coding support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0BS907554D, 0BS598554D, Haldex control unit, HAP542, 5WP33527-01, SW 4017, HW H43, Gen 4 Haldex, Continental, Passat, Tiguan, Sharan, Q3, TT, Octavia, Superb, Alhambra, Caddy, Golf, Passat CC\"\u003e\n \u003ctitle\u003e0BS907554D Haldex Control Unit Gen 4 | Used OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed Haldex Control Unit 0BS907554D\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0BS907554D\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM original rear differential \/ Gen 4 Haldex AWD control module for Volkswagen Group vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33527-01\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 4017 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n This is a genuine used OEM Haldex control unit that has been bench tested and confirmed fully functional. It is supplied as a reliable replacement for a faulty original module and helps restore correct rear differential and AWD operation in Gen 4 Haldex systems.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BS907554D  •  0BS598554D  •  HAP542  •  5WP33527-01  •  SW 4017  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BS907554  •  0BS907554A  •  0BS907554B  •  0BS907554C  •  0BS907554D  •  0BS598554  •  0BS598554A  •  0BS598554B  •  0BS598554C  •  0BS598554D  •  5WP33527  •  5WP33524-01  •  5WP33524-02  •  5WP33524-03\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your existing Haldex control unit and confirm it matches the references listed above. If you are unsure about compatibility, contact us and we will help verify fitment.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolkswagen Group AWD \/ 4x4 vehicles with Gen 4 Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33527-01\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e4017\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eH43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eUsed Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine used OEM Haldex control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0BS907554D\u003c\/strong\u003e. It is a key electronic component of the fourth-generation Haldex all-wheel-drive system and is responsible for managing rear differential clutch operation and rear axle engagement when traction is needed.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Module Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls the rear differential clutch engagement in the AWD system\u003c\/li\u003e\n \u003cli\u003eSupports proper torque transfer to the rear axle during traction demand\u003c\/li\u003e\n \u003cli\u003eCommunicates with the AWD system and related drivetrain electronics\u003c\/li\u003e\n \u003cli\u003eHelps restore correct AWD performance when the original module has failed\u003c\/li\u003e\n \u003cli\u003eProvides an OEM replacement solution for intermittent or complete AWD loss\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n This module is intended as an OEM replacement for the original control unit. Coding or adaptation may be required after installation depending on the vehicle configuration, and online support is available if needed.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe 0BS907554D is compatible with selected Volkswagen Group vehicles equipped with Gen 4 Haldex AWD. Always verify the exact part number on your existing module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eŠkoda Octavia\u003c\/li\u003e\n \u003cli\u003eŠkoda Superb\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolkswagen Caddy\u003c\/li\u003e\n \u003cli\u003eVolkswagen Golf\u003c\/li\u003e\n \u003cli\u003eVolkswagen Passat\u003c\/li\u003e\n \u003cli\u003eVolkswagen Passat CC\u003c\/li\u003e\n \u003cli\u003eVolkswagen Sharan\u003c\/li\u003e\n \u003cli\u003eVolkswagen Tiguan\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAudi Q3\u003c\/li\u003e\n \u003cli\u003eAudi TT\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eSEAT Alhambra\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this control unit fits your vehicle, send us your VIN number or the OEM number from your existing module. We will help confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex control unit commonly causes the following issues:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003eLoss of AWD \/ 4x4 function or no rear axle engagement\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e Control module faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e Haldex clutch pump (V181)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e Clutch control valve (N373)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e All Wheel Drive Control Module (J492) no communication \/ intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e Control module EEPROM error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e Internal control module memory error\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eNo communication fault during diagnostics\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n If this module is being replaced, it is recommended to inspect the Haldex pump and N373 clutch control valve. Replacing the pump, valve and Haldex oil during installation is strongly recommended for reliable operation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eVerify the exact OEM part number on the original control unit\u003c\/li\u003e\n \u003cli\u003eDisconnect the module and inspect the connector pins and wiring\u003c\/li\u003e\n \u003cli\u003eInstall the replacement module in the original position\u003c\/li\u003e\n \u003cli\u003eCheck the condition of the Haldex pump and N373 valve\u003c\/li\u003e\n \u003cli\u003eReplace the Haldex oil during installation\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes with suitable diagnostic equipment\u003c\/li\u003e\n \u003cli\u003eCode or adapt the module if required by the vehicle\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm correct AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"8be2e5ede4cbe8eaf9f8a6eee8fea5e8e4e6\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex pump or the N373 clutch control valve can overload the system and trigger repeated module-related diagnostic errors.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, pump or valve faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"\/cdn-cgi\/l\/email-protection#cba2a5ada48ba8aab9b8e6aea8bee5a8a4a6\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only and the supplied unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eCoding or adaptation may be required after installation and online support is included\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n © 2026 Cars-ECU. Product page prepared in the updated BMW-style layout.\n \u003c\/footer\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":48634592592205,"sku":"","price":289.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"haldex-control-unit-volvo-5wp33517-02-used","title":"5WP33517-02 Haldex control unit Volvo Used","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Used 5WP33517-02 Haldex control unit for Volvo AWD models. Continental Gen 4 DEM module, HAP542 \/ 110683-01, 12-month warranty.\"\u003e\n \u003cmeta name=\"keywords\" content=\"5WP33517-02, 5WP3351702, HAP542, 110683-01, Volvo Haldex control unit, Volvo DEM module, XC60, XC70, XC90, V70, S60, S80, Continental, Gen 4 AWD\"\u003e\n \u003ctitle\u003e5WP33517-02 Haldex Control Unit Volvo Gen 4 | Used Continental OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n .questions-help { text-align: center; }\n .questions-help h2 { text-align: center; }\n .questions-help p { text-align: center; max-width: 760px; margin: 0 auto; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed Haldex Control Unit 5WP33517-02 – Volvo AWD Gen 4\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 5WP33517-02\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Continental DEM module for selected Volvo AWD vehicles equipped with 4th generation Haldex system.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used – Fully Tested \u0026amp; Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eModule Type\u003c\/strong\u003e\n Differential Electronic Module (DEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 110683-01\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eOriginal Used OEM Volvo AWD Module\u003c\/strong\u003e\n Bench-tested used Haldex control unit for Volvo AWD applications. Prepared as a reliable replacement for failed Gen 4 DEM modules causing AWD malfunction, communication faults or Anti-Skid warnings.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers \u0026amp; Cross-References\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eMain OEM Part Number:\u003c\/strong\u003e\n \u003cp\u003e5WP33517-02  •  5WP3351702  •  HAP542  •  110683-01  •  11068301\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible \/ Interchangeable References:\u003c\/strong\u003e\n \u003cp\u003e5WP33517-01  •  5WP33517-02  •  5WP33517-03  •  5WP33517\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eSupplier \/ VM References:\u003c\/strong\u003e\n \u003cp\u003eContinental  •  HAP542  •  110683-01\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before ordering, check the number printed on your existing DEM \/ Haldex module and confirm it matches one of the references listed above. Some interchangeable units may require coding or reprogramming after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eRear Differential Electronic Module (DEM) \/ Haldex Control Unit\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHAP542 \/ 110683-01\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eOEM Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e5WP33517-02 \/ 5WP3351702\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSelected Volvo AWD vehicles with 4th generation Haldex system\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUsed \/ Bench-Tested \/ Functional\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eProgramming Note:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCoding or reprogramming may be required on some vehicles after installation\u003c\/div\u003e\n\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis used original Haldex control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e5WP33517-02\u003c\/strong\u003e is a Continental Differential Electronic Module (DEM) for Volvo AWD vehicles using a 4th generation Haldex system. It manages rear axle engagement, communicates with the AWD system electronics and helps restore proper traction when the original module has failed.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Module Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls AWD engagement through the rear differential Haldex system\u003c\/li\u003e\n \u003cli\u003eHelps restore traction when the original DEM has stopped communicating\u003c\/li\u003e\n \u003cli\u003eSupports stable operation of the Volvo AWD drivetrain electronics\u003c\/li\u003e\n \u003cli\u003eCan help eliminate common DEM-related Anti-Skid and AWD fault symptoms\u003c\/li\u003e\n \u003cli\u003eProvides a cost-effective OEM replacement for selected Volvo models\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 18px;\"\u003eTypical failure causes include internal electronic malfunction and moisture or water ingress into the module housing. Replacing a faulty DEM can restore normal AWD function when the existing unit no longer operates correctly.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eService Recommendation\u003c\/strong\u003e\n When replacing the module, it is recommended to inspect the Haldex system for moisture, wiring issues and fluid condition. Professional diagnostics should be carried out after installation, especially if the original unit logged communication faults.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThis used Volvo Haldex DEM is suitable for selected Volvo AWD models equipped with 4th generation Haldex system. Always verify the exact part number on your original module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eVolvo\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolvo V70 AWD (2009–2012)\u003c\/li\u003e\n \u003cli\u003eVolvo S60 AWD (2009–2012)\u003c\/li\u003e\n \u003cli\u003eVolvo S80 AWD (2009–2012)\u003c\/li\u003e\n \u003cli\u003eVolvo XC60 AWD (2009–2012)\u003c\/li\u003e\n \u003cli\u003eVolvo XC70 AWD (2009–2012)\u003c\/li\u003e\n \u003cli\u003eVolvo XC90 AWD (2009–2013)\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this DEM fits your vehicle, send the VIN number or the printed number from your existing module and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Faults \u0026amp; Symptoms\u003c\/h2\u003e\n \u003cp\u003eA faulty Volvo Haldex DEM can commonly trigger one or more of the following symptoms:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e – The AWD \/ DEM module is not responding to diagnostics\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eAnti-Skid Service\u003c\/code\u003e – Warning message shown on the dashboard\u003c\/li\u003e\n \u003cli\u003eAggressive wheel spin or poor rear axle engagement\u003c\/li\u003e\n \u003cli\u003eAWD \/ 4x4 system not working correctly\u003c\/li\u003e\n \u003cli\u003eStored drivetrain or traction related warning messages\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eKnown Failure Cause\u003c\/strong\u003e\n Moisture or water ingress is a common reason for internal DEM failure on these Volvo Haldex modules, so the connector area and housing condition should always be checked during replacement.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Recommended Service\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eVerify the exact part number on the original Volvo DEM before replacement\u003c\/li\u003e\n \u003cli\u003eDisconnect the battery and safely access the rear differential module\u003c\/li\u003e\n \u003cli\u003eRemove the old control unit and inspect the connector for corrosion or moisture\u003c\/li\u003e\n \u003cli\u003eInstall the replacement DEM and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear stored faults and confirm module communication with suitable diagnostics\u003c\/li\u003e\n \u003cli\u003eCarry out coding or reprogramming if required by the vehicle\u003c\/li\u003e\n \u003cli\u003ePerform a road test and confirm correct AWD operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended During Replacement\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInspect the module area for water ingress and damaged seals\u003c\/li\u003e\n \u003cli\u003eCheck Haldex fluid condition and service if necessary\u003c\/li\u003e\n \u003cli\u003eInspect pump, wiring and connector pins for damage or corrosion\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the module needs coding after installation, our team can help. Contact us at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"f59c9b939ab596948786d8909680db969a98\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e or use the contact button below.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit is supplied with a 12-month functionality warranty and is tested before dispatch.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Includes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eBench-tested module functionality before shipping\u003c\/li\u003e\n \u003cli\u003eBasic compatibility guidance before purchase\u003c\/li\u003e\n \u003cli\u003eOnline support if coding assistance is needed after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Excludes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect part ordering without number verification\u003c\/li\u003e\n \u003cli\u003eDamage caused by moisture ingress, wiring faults or improper installation\u003c\/li\u003e\n \u003cli\u003eVehicle-side pump, drivetrain or electrical faults unrelated to the module itself\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section questions-help\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eIf you are unsure about compatibility, coding or installation, contact our technical team before ordering. We will help you verify the correct part number for your Volvo.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify the exact module number printed on your original DEM before ordering.\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available. If your country is not shown at checkout, contact us directly.\u003c\/li\u003e\n \u003cli\u003eSome interchangeable units may require coding or reprogramming after installation.\u003c\/li\u003e\n \u003cli\u003eChecking Haldex fluid condition and moisture around the module area is recommended during replacement.\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":48637953081677,"sku":"","price":199.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"haldex-control-unit-0ay907554d-refurbished","title":"0AY907554D Haldex control unit Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished 0AY907554D Haldex control unit for Gen 4 AWD. OEM Continental module for Audi, VW, Skoda and SEAT with online coding support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0AY907554D, 0AY598554D, Haldex control unit, HAP542, 5WP33522-03, SW 0042, HW H43, Gen 4 Haldex, Continental, Tiguan, Sharan, Q3, A3, TT, Octavia, Yeti, Superb, Alhambra, Leon\"\u003e\n \u003ctitle\u003e0AY907554D Haldex Control Unit Gen 4 | Refurbished OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished Haldex Control Unit 0AY907554D\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0AY907554D\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM original rear differential \/ Gen 4 Haldex AWD control module for Volkswagen Group vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33522-03\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 0042 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Each module is professionally refurbished, fully bench tested and resealed to restore durability and stable operation. The unit is prepared as a reliable OEM replacement for a faulty original Haldex controller and offers a cost-effective way to restore proper AWD function.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554D  •  0AY598554D  •  HAP542  •  5WP33522-03  •  SW 0042  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554  •  0AY907554A  •  0AY907554B  •  0AY907554C  •  0AY907554D  •  0AY598554  •  0AY598554A  •  0AY598554B  •  0AY598554C  •  0AY598554D\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your existing Haldex control unit and confirm it matches the references listed above. If you are unsure about compatibility, contact us and we will help verify fitment.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolkswagen Group AWD \/ 4x4 vehicles with Gen 4 Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33522-03\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e0042\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eH43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRefurbished Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine refurbished OEM Haldex control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0AY907554D\u003c\/strong\u003e. It is a critical component of the fourth-generation Haldex all-wheel-drive system, responsible for controlling the rear differential clutch and enabling correct torque transfer to the rear axle when traction is required.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Module Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls the rear differential clutch engagement in the AWD system\u003c\/li\u003e\n \u003cli\u003eSupports proper torque transfer to the rear axle during traction demand\u003c\/li\u003e\n \u003cli\u003eCommunicates with the AWD system and related drivetrain electronics\u003c\/li\u003e\n \u003cli\u003eHelps restore correct AWD performance when the original module has failed\u003c\/li\u003e\n \u003cli\u003eProvides an OEM replacement solution for intermittent or complete AWD loss\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n This module is intended as an OEM replacement for the original control unit. Coding or adaptation may be required after installation depending on the vehicle configuration, and online support is available if needed.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe 0AY907554D is compatible with selected Volkswagen Group vehicles equipped with Gen 4 Haldex AWD. Always verify the exact part number on your existing module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eŠkoda Octavia\u003c\/li\u003e\n \u003cli\u003eŠkoda Yeti\u003c\/li\u003e\n \u003cli\u003eŠkoda Superb\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolkswagen Beetle\u003c\/li\u003e\n \u003cli\u003eVolkswagen Caddy\u003c\/li\u003e\n \u003cli\u003eVolkswagen Golf\u003c\/li\u003e\n \u003cli\u003eVolkswagen Jetta\u003c\/li\u003e\n \u003cli\u003eVolkswagen Passat\u003c\/li\u003e\n \u003cli\u003eVolkswagen Passat CC\u003c\/li\u003e\n \u003cli\u003eVolkswagen Sharan\u003c\/li\u003e\n \u003cli\u003eVolkswagen Tiguan\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAudi A3\u003c\/li\u003e\n \u003cli\u003eAudi S3\u003c\/li\u003e\n \u003cli\u003eAudi Q3\u003c\/li\u003e\n \u003cli\u003eAudi TT\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eSEAT Alhambra\u003c\/li\u003e\n \u003cli\u003eSEAT Altea XL\u003c\/li\u003e\n \u003cli\u003eSEAT Leon\u003c\/li\u003e\n \u003cli\u003eSEAT Toledo\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this control unit fits your vehicle, send us your VIN number or the OEM number from your existing module. We will help confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex control unit commonly causes the following issues:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003eLoss of AWD \/ 4x4 function or no rear axle engagement\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e Control module faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e Haldex clutch pump (V181)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e Clutch control valve (N373)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e All Wheel Drive Control Module (J492) no communication \/ intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e Control module EEPROM error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e Internal control module memory error\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eNo communication fault during diagnostics\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n If this module is being replaced, it is recommended to inspect the Haldex control valve N373 and related system components. A proper diagnostic scan should be carried out before and after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eVerify the exact OEM part number on the original control unit\u003c\/li\u003e\n \u003cli\u003eDisconnect the module and inspect the connector pins and wiring\u003c\/li\u003e\n \u003cli\u003eInstall the replacement module in the original position\u003c\/li\u003e\n \u003cli\u003eCheck the condition of the Haldex pump and N373 valve\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes with suitable diagnostic equipment\u003c\/li\u003e\n \u003cli\u003eCode or adapt the module if required by the vehicle\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm correct AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"167f78707956757764653b7375633875797b\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex pump or the N373 clutch control valve can overload the system and trigger repeated module-related diagnostic errors.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, pump or valve faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"\/cdn-cgi\/l\/email-protection#c5acaba3aa85a6a4b7b6e8a0a6b0eba6aaa8\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only and the supplied unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eCoding or adaptation may be required after installation and online support is included\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n © 2026 Cars-ECU. Product page prepared in the updated BMW-style layout.\n \u003c\/footer\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":48731163754829,"sku":"1","price":329.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_6f237bf8-5b60-4def-98ad-049e0f03750d.jpg?v=1741337565"},{"product_id":"haldex-control-unit-for-land-rover-5wp33501-06","title":"5WP33501-06 Haldex control unit Land Rover Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished 5WP33501-06 Haldex control unit for Land Rover AWD. Original Siemens ECU for 3rd generation Haldex, fully tested with 12-month warranty.\"\u003e\n \u003cmeta name=\"keywords\" content=\"5WP33501-06, 5WP3350106, 5WP33501, Haldex control unit, Land Rover AWD, 3rd generation Haldex, Siemens, HAP542, Freelander 2, Range Rover Evoque, AWD ECU, rear differential module\"\u003e\n \u003ctitle\u003e5WP33501-06 Haldex Control Unit Land Rover AWD | Refurbished Siemens OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished OEM Haldex Control Unit 5WP33501-06 – Land Rover AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 5WP33501-06\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Siemens rear differential control module for Land Rover AWD vehicles with 3rd generation Haldex coupling.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 3rd Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished – Fully Tested \u0026amp; Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Siemens (Original OEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33501\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eRework Details\u003c\/strong\u003e\n New cover and silicone sealing for improved durability\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eRefurbished \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Professionally refurbished original Haldex control unit, bench-tested and resealed before dispatch to restore reliable AWD operation and rear differential control.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers \u0026amp; Cross-References\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eMain OEM Part Numbers:\u003c\/strong\u003e\n \u003cp\u003e5WP33501-06  •  5WP3350106  •  5WP33501  •  HAP542\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e5WP33501-01  •  5WP33501-02  •  5WP33501-03  •  5WP33501-04  •  5WP33501-05  •  5WP33501\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eSupplier \/ Module References:\u003c\/strong\u003e\n \u003cp\u003eSiemens  •  HAP542  •  Rear Differential AWD Control Unit\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before ordering, compare the part number on your current Haldex control unit with the references listed above. If you are unsure, contact us and we will help verify compatibility.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHaldex AWD 3rd Generation\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (AWD ECU \/ Haldex Module)\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSiemens\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33501\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eLand Rover AWD vehicles with 3rd generation Haldex coupling\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eRefurbished – Fully Tested \u0026amp; Functional\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRefurbishment:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eResealed with new silicone and fitted with a replacement cover\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupport:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eOnline support in case the module needs coding or fitment assistance\u003c\/div\u003e\n\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a refurbished original Siemens Haldex control unit with OEM number \u003cstrong style=\"color: #E3FC02;\"\u003e5WP33501-06\u003c\/strong\u003e, designed for Land Rover AWD systems using the 3rd generation Haldex coupling. The module manages rear differential engagement and helps restore proper four-wheel-drive operation when the original ECU has failed.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls the Haldex coupling to engage rear-wheel drive when required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS \/ ESP and other drivetrain systems\u003c\/li\u003e\n \u003cli\u003eMonitors AWD operation and stores diagnostic trouble codes\u003c\/li\u003e\n \u003cli\u003eManages hydraulic clutch engagement strategy in the rear coupling\u003c\/li\u003e\n \u003cli\u003eHelps restore rear differential control when the original ECU is faulty\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDurability Upgrade\u003c\/strong\u003e\n This refurbished unit is supplied with a new cover and fresh silicone sealing to improve durability and give performance close to a like-new module.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eTypical Land Rover applications for this Haldex control unit include the vehicles below. Always confirm the part number on your current module before purchase.\u003c\/p\u003e\n\n \u003ch3\u003eLand Rover\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eLand Rover Freelander 2 AWD – up to 2009\u003c\/li\u003e\n \u003cli\u003eEarly Range Rover Evoque AWD models\u003c\/li\u003e\n \u003cli\u003eSelected Land Rover AWD applications using 5WP33501-series Haldex ECU\u003c\/li\u003e\n \u003cli\u003eVehicles fitted with compatible ECU numbers 5WP33501-01 to 5WP33501-05\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n Send us your VIN number or a photo of your existing part label and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Faults \u0026amp; Symptoms\u003c\/h2\u003e\n \u003cp\u003eProblems with the Haldex control unit can cause the AWD system to stop working or operate intermittently. Common symptoms and diagnostic issues include:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e – AWD control module not responding\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eN373\u003c\/code\u003e – Haldex control valve fault \/ hydraulic pressure issue\u003c\/li\u003e\n \u003cli\u003eLoss of 4x4 \/ AWD function\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eClutch or hydraulic-related faults affecting rear axle engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Recommended Service\u003c\/h2\u003e\n \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eDisconnect the battery and safely access the rear differential Haldex module\u003c\/li\u003e\n \u003cli\u003eRemove the old control unit and inspect the connector for moisture or corrosion\u003c\/li\u003e\n \u003cli\u003eInstall the replacement ECU carefully and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes and check communication with a suitable diagnostic tool\u003c\/li\u003e\n \u003cli\u003eCarry out coding if required after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended While Replacing the Unit\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eReplace the Haldex control valve N373 if related faults are present\u003c\/li\u003e\n \u003cli\u003eCheck Haldex oil condition and service the system if needed\u003c\/li\u003e\n \u003cli\u003eInspect wiring and connector condition\u003c\/li\u003e\n \u003cli\u003eVerify that no remaining AWD, ABS or ESP faults are stored after fitting\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If you need help with diagnostics, compatibility or coding, reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"4e272028210e2d2f3c3d632b2d3b602d2123\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n \u003ch3\u003e1. Moisture Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eWater ingress or corrosion inside the module or connector can interrupt communication and damage internal electronics.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Hydraulic System Faults\u003c\/h3\u003e\n \u003cp\u003eFaults in the Haldex control valve or hydraulic system can overload the ECU and trigger repeated drivetrain warnings.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eAge, vibration and thermal stress can damage internal circuits, leading to intermittent AWD operation or total loss of rear axle engagement.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, weak power supply or poor connector contact can create no-communication errors and unstable module behaviour.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been fully tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, valve or drivetrain faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and diagnostics support.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify the part number before ordering\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eDiagnostic checks are recommended after installation\u003c\/li\u003e\n \u003cli\u003eThis module should only be fitted where the original OEM number matches\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":48732735177037,"sku":"","price":319.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_5a93c703-8647-446f-8124-eefc18d537aa.jpg?v=1741337501"},{"product_id":"haldex-control-unit-0ay907554e","title":"0AY907554E Haldex control unit Used","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Used 0AY907554E Haldex control unit for VAG AWD vehicles. Continental Gen 4 rear differential module, SW 0043 \/ HW H43, 12-month warranty.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0AY907554E, Haldex control unit, used Haldex ECU, Continental, HAP542, 5WP33522-04, SW 0043, HW H43, Tiguan, Sharan, Alhambra, Audi Q3, Octavia 4x4, Superb, Haldex Gen 4\"\u003e\n \u003ctitle\u003e0AY907554E Haldex Control Unit Gen 4 | Used Continental OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n .questions-help { text-align: center; }\n .questions-help h2 { text-align: center; }\n .questions-help p { text-align: center; max-width: 760px; margin: 0 auto; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed Haldex Control Unit 0AY907554E – 4th Generation AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0AY907554E\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Continental Haldex rear differential control unit for selected VAG vehicles with 4th generation AWD system.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used – Fully Tested \u0026amp; Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33522-04\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSW \/ HW Version\u003c\/strong\u003e\n SW 0043 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eOriginal Used OEM Module\u003c\/strong\u003e\n Fully tested Continental Haldex control unit supplied with the original cover and plug connector. Prepared as a reliable replacement for failed Gen 4 AWD modules in compatible VAG vehicles.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers \u0026amp; Cross-References\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eMain OEM Part Number:\u003c\/strong\u003e\n \u003cp\u003e0AY907554E  •  HAP542  •  5WP33522-04  •  SW 0043  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554  •  0AY907554A  •  0AY907554B  •  0AY907554C  •  0AY907554D  •  0AY907554E\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before ordering, check the number printed on your original Haldex ECU and confirm it matches the references listed above. If you are unsure, contact us before purchase for fitment verification.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (ECU)\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33522-04\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSW 0043\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHW H43\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eVW, Audi, Škoda and SEAT vehicles with 4th generation Haldex AWD\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUsed \/ Tested \/ Functional\u003c\/div\u003e\n\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis used original Haldex control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0AY907554E\u003c\/strong\u003e is designed for 4th generation Haldex AWD systems used in selected Volkswagen Group vehicles. It is a Continental rear differential controller responsible for managing AWD engagement, communication with drivetrain electronics and stable operation of the Haldex system.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls rear differential clutch engagement in Gen 4 Haldex systems\u003c\/li\u003e\n \u003cli\u003eHelps restore 4x4 \/ AWD operation when the original module has failed\u003c\/li\u003e\n \u003cli\u003eSupports communication with ABS, ESP and AWD electronics\u003c\/li\u003e\n \u003cli\u003eCan help resolve no-communication faults and traction-related warnings\u003c\/li\u003e\n \u003cli\u003eOffers a cost-effective replacement for a damaged original ECU\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 18px;\"\u003eThe unit is suitable for vehicles showing AWD malfunction, rear-wheel drive not engaging, no communication with the Haldex module, or warning lights related to ESP \/ ABS. This product is supplied as a used OEM part that has been checked for correct operation before dispatch.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eIncluded With The Unit\u003c\/strong\u003e\n This used module includes the plug connector and original cover. Online support is available if coding or post-installation assistance is required.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThis Haldex ECU is suitable for selected VAG vehicles equipped with a 4th generation Haldex AWD system. Always verify the exact part number on your original unit before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolkswagen Tiguan\u003c\/li\u003e\n \u003cli\u003eVolkswagen Sharan\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAudi A3 8P Quattro\u003c\/li\u003e\n \u003cli\u003eAudi S3 8P Quattro\u003c\/li\u003e\n \u003cli\u003eAudi TT 8J Quattro\u003c\/li\u003e\n \u003cli\u003eAudi Q3\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eŠkoda Octavia II 4x4\u003c\/li\u003e\n \u003cli\u003eŠkoda Yeti\u003c\/li\u003e\n \u003cli\u003eŠkoda Superb\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eSEAT Alhambra\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are not sure whether this module fits your car, send the VIN number or the printed number from your existing Haldex ECU and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Fault Codes \u0026amp; Symptoms\u003c\/h2\u003e\n \u003cp\u003eProblems with a defective Haldex ECU can commonly trigger the following symptoms or fault indications:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e – Control module fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e – Haldex clutch pump related fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e – Haldex control valve \/ N373 related issue\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e – Module not responding to diagnostics\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eESP \/ ABS\u003c\/code\u003e – Warning lights linked to AWD malfunction\u003c\/li\u003e\n \u003cli\u003eRear-wheel drive not engaging\u003c\/li\u003e\n \u003cli\u003eAWD \/ 4x4 system not working correctly\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Recommended Service\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eVerify the exact OEM number on the original control unit before replacement\u003c\/li\u003e\n \u003cli\u003eDisconnect the battery and safely access the Haldex module\u003c\/li\u003e\n \u003cli\u003eRemove the old ECU and inspect the connector area for moisture or corrosion\u003c\/li\u003e\n \u003cli\u003eInstall the replacement module and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes and confirm communication with suitable diagnostics\u003c\/li\u003e\n \u003cli\u003eCarry out coding or adaptation if required by the vehicle\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm proper AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended During Replacement\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eReplace the Haldex valve N373 if there are valve-related faults\u003c\/li\u003e\n \u003cli\u003eReplace Haldex oil during service\u003c\/li\u003e\n \u003cli\u003eInspect wiring, pump condition and connector pins for damage or corrosion\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the module needs coding after installation, our team can help. Contact us at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"0e676068614e6d6f7c7d236b6d7b206d6163\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e or use the contact button below.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit is supplied with a 12-month functionality warranty and is tested before dispatch.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Includes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eVerified working module functionality before shipping\u003c\/li\u003e\n \u003cli\u003eBasic compatibility guidance before purchase\u003c\/li\u003e\n \u003cli\u003eOnline support if coding assistance is needed after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Excludes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect part ordering without number verification\u003c\/li\u003e\n \u003cli\u003eDamage caused by wiring faults, moisture ingress or poor installation\u003c\/li\u003e\n \u003cli\u003eVehicle-side pump, valve or electrical faults unrelated to the ECU itself\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section questions-help\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eIf you are unsure about compatibility, coding or installation, contact our technical team before ordering. We will help you verify the correct part number for your vehicle.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify the exact module number printed on your original unit before ordering.\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available. If your country is not shown at checkout, contact us directly.\u003c\/li\u003e\n \u003cli\u003eReplacing the Haldex valve N373 and servicing the Haldex oil is recommended when fitting a replacement ECU.\u003c\/li\u003e\n \u003cli\u003eOnline support is available if coding assistance is required after installation.\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":49837354910029,"sku":"2","price":279.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"new-haldex-control-unit-0bs907554d","title":"0BS907554D Haldex control unit New","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"0BS907554D Haldex Control Unit Gen 4 AWD – new Continental OEM for VW, Audi, Škoda and SEAT vehicles with 4th generation Haldex. Fully functional, 24-month warranty, online support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0BS907554D, 0BS598554D, HAP542, 5WP33527-01, 5WP33524-01, 5WP33524-02, 5WP33524-03, Haldex control unit, Gen 4 Haldex, Continental Haldex ECU, AWD control module, Passat Q3 Tiguan Superb Octavia Haldex\"\u003e\n \u003ctitle\u003e0BS907554D Haldex Control Unit Gen 4 AWD | New OEM | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: #ffffff; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; 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padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 15px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #1a1a1a; padding: 10px; border-radius: 3px; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .info-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .info-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; font-size: 0.92em; color: #ffffff; border-bottom: 1px solid #333333; }\n .fault-codes li:last-child { border-bottom: none; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n min-width: 200px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin-top: 20px;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover {\n background: #E3FC02;\n color: #000000 !important;\n transform: translateY(-1px);\n box-shadow: 0 10px 22px rgba(227, 252, 2, 0.22);\n }\n .btn-contact:hover,\n .btn-contact:focus,\n .btn-contact:active,\n .btn-contact:visited:hover {\n color: #000000 !important;\n }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .spec-label { border-bottom: none; border-radius: 3px 3px 0 0; }\n .spec-value { border-radius: 0 0 3px 3px; margin-bottom: 10px; }\n .btn-contact { width: 100%; max-width: 300px; }\n }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n \n .site-topbar {\n background: #E3FC02;\n color: #000000;\n font-size: 12px;\n font-weight: 700;\n letter-spacing: 0.08em;\n text-transform: uppercase;\n min-height: 36px;\n display: flex;\n align-items: center;\n justify-content: center;\n position: relative;\n padding: 0 48px;\n }\n .site-topbar .chevron {\n position: absolute;\n top: 50%;\n transform: translateY(-50%);\n font-size: 16px;\n line-height: 1;\n color: #000000;\n opacity: 0.9;\n }\n .site-topbar .chevron.left { left: 18px; }\n .site-topbar .chevron.right { right: 18px; }\n .site-header {\n background: #111111;\n border-bottom: 1px solid rgba(255,255,255,0.10);\n }\n .site-header-inner {\n max-width: 1380px;\n margin: 0 auto;\n min-height: 78px;\n padding: 0 24px;\n display: grid;\n grid-template-columns: 1fr auto 1fr;\n align-items: center;\n gap: 24px;\n }\n .site-nav-left,\n .site-nav-right {\n display: flex;\n align-items: center;\n gap: 24px;\n }\n .site-nav-right {\n justify-content: flex-end;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n color: #f5f5f5;\n text-decoration: none;\n font-size: 14px;\n font-weight: 500;\n transition: color 0.2s ease;\n white-space: nowrap;\n }\n .site-nav-link:hover,\n .site-nav-right a:hover {\n color: #E3FC02;\n }\n .site-logo {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n gap: 10px;\n color: #ffffff;\n text-decoration: none;\n font-size: 28px;\n font-weight: 800;\n letter-spacing: 0.08em;\n white-space: nowrap;\n }\n .site-logo-mark {\n width: 22px;\n height: 22px;\n border: 2px solid #ffffff;\n border-radius: 5px;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 12px;\n line-height: 1;\n }\n .site-nav-caret {\n color: #bdbdbd;\n margin-left: 4px;\n font-size: 11px;\n }\n .site-icon-link {\n font-size: 18px !important;\n line-height: 1;\n }\n @media (max-width: 1080px) {\n .site-header-inner {\n grid-template-columns: 1fr;\n padding: 18px 20px;\n gap: 16px;\n }\n .site-nav-left,\n .site-nav-right {\n justify-content: center;\n flex-wrap: wrap;\n gap: 16px;\n }\n .site-logo {\n order: -1;\n }\n }\n @media (max-width: 640px) {\n .site-topbar {\n font-size: 11px;\n padding: 0 36px;\n text-align: center;\n }\n .site-nav-left,\n .site-nav-right {\n gap: 12px;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n font-size: 13px;\n }\n .site-logo {\n font-size: 24px;\n }\n }\n\n \n \/* global-nav-refresh-start *\/\n .site-topbar {\n background: #E3FC02;\n color: #000000;\n font-size: 12px;\n font-weight: 700;\n letter-spacing: 0.08em;\n text-transform: uppercase;\n min-height: 36px;\n display: flex;\n align-items: center;\n justify-content: center;\n position: relative;\n padding: 0 48px;\n }\n .site-topbar .chevron {\n position: absolute;\n top: 50%;\n transform: translateY(-50%);\n font-size: 16px;\n line-height: 1;\n color: #000000;\n opacity: 0.9;\n }\n .site-topbar .chevron.left { left: 18px; }\n .site-topbar .chevron.right { right: 18px; }\n .site-header {\n background: #111111;\n border-bottom: 1px solid rgba(255,255,255,0.10);\n }\n .site-header-inner {\n max-width: 1380px;\n margin: 0 auto;\n min-height: 78px;\n padding: 0 24px;\n display: grid;\n grid-template-columns: 1fr auto 1fr;\n align-items: center;\n gap: 24px;\n }\n .site-nav-left,\n .site-nav-right {\n display: flex;\n align-items: center;\n gap: 24px;\n }\n .site-nav-right {\n justify-content: flex-end;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n color: #f5f5f5;\n text-decoration: none;\n font-size: 14px;\n font-weight: 500;\n transition: color 0.2s ease;\n }\n .site-nav-link:hover,\n .site-nav-right a:hover {\n color: #E3FC02;\n }\n .site-nav-caret {\n color: #E3FC02;\n margin-left: 4px;\n font-size: 12px;\n }\n .site-logo {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n gap: 10px;\n text-decoration: none;\n color: #ffffff;\n font-size: 26px;\n font-weight: 800;\n letter-spacing: 0.08em;\n }\n .site-logo-mark {\n width: 34px;\n height: 34px;\n border-radius: 50%;\n background: #E3FC02;\n color: #000000;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 18px;\n font-weight: 900;\n }\n .site-icon-link {\n width: 34px;\n height: 34px;\n border-radius: 50%;\n border: 1px solid rgba(255,255,255,0.18);\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 16px;\n }\n .site-footer {\n text-align: center;\n padding: 28px 20px 34px;\n color: #b8b8b8;\n font-size: 0.95em;\n margin-top: 34px;\n border-top: 1px solid #E3FC02;\n }\n .site-footer a {\n color: #E3FC02;\n text-decoration: none;\n }\n .site-footer a:hover {\n text-decoration: underline;\n }\n .footer-links {\n display: flex;\n justify-content: center;\n align-items: center;\n flex-wrap: wrap;\n gap: 10px 16px;\n margin-bottom: 14px;\n font-weight: 600;\n }\n .footer-links .sep {\n color: rgba(227,252,2,0.55);\n }\n .footer-disclaimer,\n .footer-source,\n .footer-copy {\n max-width: 900px;\n margin: 10px auto 0;\n line-height: 1.7;\n }\n .footer-copy {\n color: #8f8f8f;\n font-size: 0.9em;\n }\n @media (max-width: 980px) {\n .site-header-inner {\n grid-template-columns: 1fr;\n padding: 16px 20px;\n gap: 14px;\n }\n .site-nav-left,\n .site-nav-right {\n justify-content: center;\n flex-wrap: wrap;\n gap: 12px 18px;\n }\n .site-logo {\n order: -1;\n font-size: 24px;\n }\n }\n @media (max-width: 640px) {\n .site-topbar {\n padding: 0 36px;\n font-size: 11px;\n text-align: center;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n font-size: 13px;\n }\n .site-logo {\n font-size: 22px;\n }\n }\n \/* global-nav-refresh-end *\/\n\n \u003c\/style\u003e\n\n\n\n\u003cdiv class=\"container\"\u003e\n\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eNew Haldex Control Unit 0BS907554D – 4th Generation AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0BS907554D\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Continental rear differential control module for VAG 4th generation Haldex AWD vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n New Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33527-01\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 4017 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 24 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n New functional Haldex controller prepared to restore rear differential control, AWD engagement and stable communication with drivetrain electronics in compatible Gen 4 systems.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BS907554D  •  0BS598554D  •  HAP542  •  5WP33527-01  •  SW 4017  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BS907554  •  0BS907554A  •  0BS907554B  •  0BS907554C  •  0BS907554D  •  0BS598554  •  0BS598554A  •  0BS598554B  •  0BS598554C  •  0BS598554D  •  5WP33527  •  5WP33524-01  •  5WP33524-02  •  5WP33524-03\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your original Haldex control unit. Vehicle model alone is not always enough to guarantee compatibility.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33527-01\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSW 4017\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHW H43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVAG Group AWD vehicles with 4th generation Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eNew \/ Fully Functional\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a new functional Continental Haldex control unit with OEM number \u003cstrong style=\"color:#E3FC02;\"\u003e0BS907554D\u003c\/strong\u003e, designed for 4th generation Haldex AWD systems used across Volkswagen Group vehicles. The module manages rear axle engagement, controls clutch pressure through the hydraulic system and communicates with ABS, ESP and engine management electronics.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eMonitors speed difference between front and rear axles\u003c\/li\u003e\n \u003cli\u003eControls hydraulic pump pressure for rear clutch engagement\u003c\/li\u003e\n \u003cli\u003eActivates rear-wheel drive automatically when traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and engine management modules\u003c\/li\u003e\n \u003cli\u003eManages the Haldex control valve \u003cstrong\u003eN373\u003c\/strong\u003e for clutch pressure regulation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 14px;\"\u003eTypical failures of the original controller can cause AWD disengagement, communication errors, N373 valve faults, pump faults or ESP \/ ABS warning lights. This new replacement unit is intended to restore stable AWD operation in compatible vehicles.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eOnline Coding Support\u003c\/strong\u003e\n Coding support is available if required after installation. If you need guidance with diagnostics or setup, contact us and we will help you choose the correct procedure for your vehicle.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 14px;\"\u003eTypical applications for this Gen 4 Haldex control unit include the following vehicles. Always confirm the part number on your original module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003ePassat B6 \/ B7 4Motion (2008–2014)\u003c\/li\u003e\n \u003cli\u003ePassat CC (2008–2017)\u003c\/li\u003e\n \u003cli\u003eCaddy III (2010–2015)\u003c\/li\u003e\n \u003cli\u003eTiguan\u003c\/li\u003e\n \u003cli\u003eSharan\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eQ3 (2011–2014)\u003c\/li\u003e\n \u003cli\u003eRS Q3 (pre-Apr 2013 \/ Jan 2015 as listed by source)\u003c\/li\u003e\n \u003cli\u003eTT (2008–2012)\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eOctavia\u003c\/li\u003e\n \u003cli\u003eSuperb\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAlhambra\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n Send us your VIN number or your original ECU part number and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA faulty Haldex control unit can trigger fault codes, communication problems and complete loss of rear-wheel engagement. Typical symptoms include:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e – Control Module Defective\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e – Haldex Clutch Pump Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e – All Wheel Drive Control Module: No Communication\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e – Clutch Control Valve N373 Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e – EEPROM \/ Internal Controller Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e – Internal Control Module Memory Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eN373\u003c\/code\u003e – Haldex clutch control valve problem\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eAWD \/ 4x4 system malfunction or rear-wheel drive not engaging\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n\n \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eLocate the Haldex control unit on the rear differential \/ rear axle assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the electrical connector and remove the old module\u003c\/li\u003e\n \u003cli\u003eInstall the replacement unit and secure all mounting points properly\u003c\/li\u003e\n \u003cli\u003eReconnect all electrical connectors and verify a secure fit\u003c\/li\u003e\n \u003cli\u003eClear fault codes and carry out coding or adaptation if required\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm proper AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended Service Items\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eCheck or replace the Haldex control valve \u003cstrong\u003eN373\u003c\/strong\u003e if faulty\u003c\/li\u003e\n \u003cli\u003eInspect the rear wiring connector and harness for corrosion or damage\u003c\/li\u003e\n \u003cli\u003eCheck Haldex oil condition and service if necessary\u003c\/li\u003e\n \u003cli\u003eInspect the clutch pump before final installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"dab3b4bcb59ab9bba8a9f7bfb9aff4b9b5b7\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex control valve N373 or clutch pump can overload the AWD system and trigger recurring module-related diagnostic errors, engagement issues or loss of rear-wheel drive.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e24-Month Warranty:\u003c\/strong\u003e This new Haldex control unit is supplied with a 24-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, valve, pump or drivetrain faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\" style=\"text-align: center;\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003ePlease verify the part number before ordering\u003c\/li\u003e\n \u003cli\u003eImages are for illustrative purposes only\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eReplacing Haldex oil and checking valve N373 is recommended when fitting a replacement ECU\u003c\/li\u003e\n \u003cli\u003eOnline coding support is available if required after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":49837358448973,"sku":"","price":499.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/169C9D19-3C9A-461E-A7A1-36312923A27D.jpg?v=1721201953"},{"product_id":"haldex-control-unit-0ay907554e-remanufactured","title":"0AY907554E Haldex control unit Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished 0AY907554E Haldex control unit for Gen 4 AWD. OEM Continental module for Audi, VW, Skoda and SEAT with online coding support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0AY907554E, 0AY598554E, Haldex control unit, HAP542, 5WP33522-04, SW 0043, HW H43, Gen 4 Haldex, Continental, Tiguan, Sharan, Q3, A3, TT, Octavia, Yeti, Superb, Alhambra, Leon\"\u003e\n \u003ctitle\u003e0AY907554E Haldex Control Unit Gen 4 | Refurbished OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished Haldex Control Unit 0AY907554E\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0AY907554E\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM original rear differential \/ Gen 4 Haldex AWD control module for Volkswagen Group vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33522-04\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 0043 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Each module is professionally refurbished, fully bench tested and resealed with fresh silicone and a new cover to restore durability similar to a new module. The unit is prepared as a reliable OEM replacement for a faulty original Haldex controller and includes mounting bolts.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554E  •  0AY598554E  •  HAP542  •  5WP33522-04  •  SW 0043  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554  •  0AY907554A  •  0AY907554B  •  0AY907554C  •  0AY907554D  •  0AY907554E  •  0AY598554  •  0AY598554A  •  0AY598554B  •  0AY598554C\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your existing Haldex control unit and confirm it matches the references listed above. If you are unsure about compatibility, contact us and we will help verify fitment.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolkswagen Group AWD \/ 4x4 vehicles with Gen 4 Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33522-04\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e0043\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eH43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRefurbished Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine refurbished OEM Haldex control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0AY907554E\u003c\/strong\u003e. It is a critical component of the fourth-generation Haldex all-wheel-drive system, responsible for controlling the rear differential clutch and enabling correct torque transfer to the rear axle when traction is required.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Module Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls the rear differential clutch engagement in the AWD system\u003c\/li\u003e\n \u003cli\u003eSupports proper torque transfer to the rear axle during traction demand\u003c\/li\u003e\n \u003cli\u003eCommunicates with the AWD system and related drivetrain electronics\u003c\/li\u003e\n \u003cli\u003eHelps restore correct AWD performance when the original module has failed\u003c\/li\u003e\n \u003cli\u003eProvides an OEM replacement solution for intermittent or complete AWD loss\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n This module is intended as an OEM replacement for the original control unit. Coding or adaptation may be required after installation depending on the vehicle configuration, and online support is available if needed.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe 0AY907554E is compatible with selected Volkswagen Group vehicles equipped with Gen 4 Haldex AWD. Always verify the exact part number on your existing module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eŠkoda Octavia\u003c\/li\u003e\n \u003cli\u003eŠkoda Yeti\u003c\/li\u003e\n \u003cli\u003eŠkoda Superb\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolkswagen Beetle\u003c\/li\u003e\n \u003cli\u003eVolkswagen Caddy\u003c\/li\u003e\n \u003cli\u003eVolkswagen Golf\u003c\/li\u003e\n \u003cli\u003eVolkswagen Jetta\u003c\/li\u003e\n \u003cli\u003eVolkswagen Passat\u003c\/li\u003e\n \u003cli\u003eVolkswagen Passat CC\u003c\/li\u003e\n \u003cli\u003eVolkswagen Sharan\u003c\/li\u003e\n \u003cli\u003eVolkswagen Tiguan\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAudi A3\u003c\/li\u003e\n \u003cli\u003eAudi S3\u003c\/li\u003e\n \u003cli\u003eAudi Q3\u003c\/li\u003e\n \u003cli\u003eAudi TT\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eSEAT Alhambra\u003c\/li\u003e\n \u003cli\u003eSEAT Altea XL\u003c\/li\u003e\n \u003cli\u003eSEAT Leon\u003c\/li\u003e\n \u003cli\u003eSEAT Toledo\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this control unit fits your vehicle, send us your VIN number or the OEM number from your existing module. We will help confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex control unit commonly causes the following issues:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003eLoss of AWD \/ 4x4 function or no rear axle engagement\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e Control module faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e Haldex clutch pump (V181)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e Clutch control valve (N373)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e All Wheel Drive Control Module (J492) no communication \/ intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e Control module EEPROM error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e Internal control module memory error\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eNo communication fault during diagnostics\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n If this module is being replaced, it is recommended to inspect the Haldex control valve N373, the Haldex pump and replace the Haldex oil. A proper diagnostic scan should be carried out before and after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eVerify the exact OEM part number on the original control unit\u003c\/li\u003e\n \u003cli\u003eDisconnect the module and inspect the connector pins and wiring\u003c\/li\u003e\n \u003cli\u003eInstall the replacement module in the original position\u003c\/li\u003e\n \u003cli\u003eCheck the condition of the Haldex pump and N373 valve\u003c\/li\u003e\n \u003cli\u003eReplace the Haldex oil during service\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes with suitable diagnostic equipment\u003c\/li\u003e\n \u003cli\u003eCode or adapt the module if required by the vehicle\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm correct AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"c6afa8a0a986a5a7b4b5eba3a5b3e8a5a9ab\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex pump or the N373 clutch control valve can overload the system and trigger repeated module-related diagnostic errors.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, pump or valve faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"\/cdn-cgi\/l\/email-protection#89e0e7efe6c9eae8fbfaa4eceafca7eae6e4\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only and the supplied unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eCoding or adaptation may be required after installation and online support is included\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n © 2026 Cars-ECU. Product page prepared in the updated BMW-style layout.\n \u003c\/footer\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":50073159565645,"sku":"","price":329.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_5723b0e9-2200-4d01-aa8f-d9ac9e1b9652.jpg?v=1741337489"},{"product_id":"new-haldex-control-unit-0ay907554e","title":"0AY907554E Haldex control unit New","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"New 0AY907554E Haldex control unit for Gen 4 AWD. Original Continental module for Audi, VW, Skoda and SEAT with online coding support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0AY907554E, Haldex control unit, HAP542, 5WP33522-04, SW 0043, HW H43, Gen 4 Haldex, Continental, Tiguan, Passat, Sharan, Q3, A3, TT, Octavia, Superb, Alhambra\"\u003e\n \u003ctitle\u003e0AY907554E Haldex Control Unit Gen 4 | New OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eNew Haldex Control Unit 0AY907554E\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0AY907554E\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM original rear differential \/ Gen 4 Haldex AWD control module for Volkswagen Group vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n New Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33522-04\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 0043 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 24 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n This 100% brand-new original Haldex control unit is fully tested and prepared as a reliable OEM replacement for a faulty original Haldex controller. It is supplied with functionality warranty and online support in case the module needs coding after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554E  •  HAP542  •  5WP33522-04  •  SW 0043  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554  •  0AY907554A  •  0AY907554B  •  0AY907554C  •  0AY907554D\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your existing Haldex control unit and confirm it matches the references listed above. If you are unsure about compatibility, contact us and we will help verify fitment.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolkswagen Group AWD \/ 4x4 vehicles with Gen 4 Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33522-04\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e0043\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eH43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eNew Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine new OEM Haldex control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0AY907554E\u003c\/strong\u003e. It is a critical component of the fourth-generation Haldex all-wheel-drive system, responsible for controlling the rear differential clutch and enabling correct torque transfer to the rear axle when traction is required.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Module Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls the rear differential clutch engagement in the AWD system\u003c\/li\u003e\n \u003cli\u003eSupports proper torque transfer to the rear axle during traction demand\u003c\/li\u003e\n \u003cli\u003eCommunicates with the AWD system and related drivetrain electronics\u003c\/li\u003e\n \u003cli\u003eHelps restore correct AWD performance when the original module has failed\u003c\/li\u003e\n \u003cli\u003eProvides an OEM replacement solution for intermittent or complete AWD loss\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n This module is intended as an OEM replacement for the original control unit. Coding or adaptation may be required after installation depending on the vehicle configuration, and online support is available if needed.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe 0AY907554E is compatible with selected Volkswagen Group vehicles equipped with Gen 4 Haldex AWD. Always verify the exact part number on your existing module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eŠkoda Octavia\u003c\/li\u003e\n \u003cli\u003eŠkoda Superb\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolkswagen Golf\u003c\/li\u003e\n \u003cli\u003eVolkswagen Passat\u003c\/li\u003e\n \u003cli\u003eVolkswagen Sharan\u003c\/li\u003e\n \u003cli\u003eVolkswagen Tiguan\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAudi A3\u003c\/li\u003e\n \u003cli\u003eAudi Q3\u003c\/li\u003e\n \u003cli\u003eAudi TT\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eSEAT Alhambra\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this control unit fits your vehicle, send us your VIN number or the OEM number from your existing module. We will help confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex control unit commonly causes the following issues:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003eLoss of AWD \/ 4x4 function or no rear axle engagement\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e Control module faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e Haldex clutch pump (V181)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e Clutch control valve (N373)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e All Wheel Drive Control Module (J492) no communication \/ intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e Control module EEPROM error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e Internal control module memory error\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eNo communication fault during diagnostics\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n If this module is being replaced, it is recommended to inspect the Haldex control valve N373 and related system components. A proper diagnostic scan should be carried out before and after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eVerify the exact OEM part number on the original control unit\u003c\/li\u003e\n \u003cli\u003eDisconnect the module and inspect the connector pins and wiring\u003c\/li\u003e\n \u003cli\u003eInstall the replacement module in the original position\u003c\/li\u003e\n \u003cli\u003eCheck the condition of the Haldex pump and N373 valve\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes with suitable diagnostic equipment\u003c\/li\u003e\n \u003cli\u003eCode or adapt the module if required by the vehicle\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm correct AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"d4bdbab2bb94b7b5a6a7f9b1b7a1fab7bbb9\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex pump or the N373 clutch control valve can overload the system and trigger repeated module-related diagnostic errors.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e24-Month Warranty:\u003c\/strong\u003e This new Haldex control unit has been tested for correct operation and is supplied with a 24-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, pump or valve faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"\/cdn-cgi\/l\/email-protection#e58c8b838aa586849796c8808690cb868a88\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only and the supplied unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eIt is recommended to replace the Haldex control valve N373 when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eCoding or adaptation may be required after installation and online support is included\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n © 2026 Cars-ECU. Product page prepared in the updated BMW-style layout.\n \u003c\/footer\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":50267702919501,"sku":"1","price":499.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/169C9D19-3C9A-461E-A7A1-36312923A27D.jpg?v=1721201953"},{"product_id":"haldex-control-unit-0ay907554c-refurbished","title":"0AY907554C Haldex control unit Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished 0AY907554C Haldex control unit for Gen 4 AWD. OEM Continental module for Audi, VW, Skoda and SEAT with online coding support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0AY907554C, Haldex control unit, HAP542, 5WP33522-01, SW 0041, HW H41, Gen 4 Haldex, Continental, Tiguan, Sharan, Q3, TT, Octavia, Superb, Alhambra\"\u003e\n \u003ctitle\u003e0AY907554C Haldex Control Unit Gen 4 | Refurbished OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished Haldex Control Unit 0AY907554C\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0AY907554C\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM original rear differential \/ Gen 4 Haldex AWD control module for Volkswagen Group vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33522-01\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 0041 \/ HW H41\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Each module is professionally refurbished, fully bench tested and resealed with new silicone to restore durability similar to a new module. The unit is prepared as a reliable OEM replacement for a faulty original Haldex controller.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554C  •  HAP542  •  5WP33522-01  •  SW 0041  •  HW H41\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554  •  0AY907554A  •  0AY907554B  •  0AY907554C  •  0AY907554D\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your existing Haldex control unit and confirm it matches the references listed above. If you are unsure about compatibility, contact us and we will help verify fitment.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolkswagen Group AWD \/ 4x4 vehicles with Gen 4 Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33522-01\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e0041\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eH41\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRefurbished Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine refurbished OEM Haldex control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0AY907554C\u003c\/strong\u003e. It is a critical component of the fourth-generation Haldex all-wheel-drive system, responsible for controlling the rear differential clutch and enabling correct torque transfer to the rear axle when traction is required.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Module Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls the rear differential clutch engagement in the AWD system\u003c\/li\u003e\n \u003cli\u003eSupports proper torque transfer to the rear axle during traction demand\u003c\/li\u003e\n \u003cli\u003eCommunicates with the AWD system and related drivetrain electronics\u003c\/li\u003e\n \u003cli\u003eHelps restore correct AWD performance when the original module has failed\u003c\/li\u003e\n \u003cli\u003eProvides an OEM replacement solution for intermittent or complete AWD loss\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n This module is intended as an OEM replacement for the original control unit. Coding or adaptation may be required after installation depending on the vehicle configuration, and online support is available if needed.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe 0AY907554C is compatible with selected Volkswagen Group vehicles equipped with Gen 4 Haldex AWD. Always verify the exact part number on your existing module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eŠkoda Octavia\u003c\/li\u003e\n \u003cli\u003eŠkoda Superb\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolkswagen Caddy\u003c\/li\u003e\n \u003cli\u003eVolkswagen Sharan\u003c\/li\u003e\n \u003cli\u003eVolkswagen Tiguan\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAudi Q3\u003c\/li\u003e\n \u003cli\u003eAudi TT\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eSEAT Alhambra\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this control unit fits your vehicle, send us your VIN number or the OEM number from your existing module. We will help confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex control unit commonly causes the following issues:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003eLoss of AWD \/ 4x4 function or no rear axle engagement\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e Control module faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e Haldex clutch pump (V181)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e Clutch control valve (N373)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e All Wheel Drive Control Module (J492) no communication \/ intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e Control module EEPROM error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e Internal control module memory error\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eNo communication fault during diagnostics\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n If this module is being replaced, it is recommended to inspect the Haldex control valve N373 and related system components. A proper diagnostic scan should be carried out before and after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eVerify the exact OEM part number on the original control unit\u003c\/li\u003e\n \u003cli\u003eDisconnect the module and inspect the connector pins and wiring\u003c\/li\u003e\n \u003cli\u003eInstall the replacement module in the original position\u003c\/li\u003e\n \u003cli\u003eCheck the condition of the Haldex pump and N373 valve\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes with suitable diagnostic equipment\u003c\/li\u003e\n \u003cli\u003eCode or adapt the module if required by the vehicle\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm correct AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"046d6a626b4467657677296167712a676b69\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex pump or the N373 clutch control valve can overload the system and trigger repeated module-related diagnostic errors.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, pump or valve faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"\/cdn-cgi\/l\/email-protection#5930373f36193a382b2a743c3a2c773a3634\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only and the supplied unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eCoding or adaptation may be required after installation and online support is included\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n © 2026 Cars-ECU. Product page prepared in the updated BMW-style layout.\n \u003c\/footer\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":50335985369421,"sku":null,"price":329.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_05112cd3-7675-4b9b-ad01-4a067a9ff657.jpg?v=1741337351"},{"product_id":"haldex-control-unit-0br907554c-refurbished","title":"0BR907554C Haldex control unit Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished OEM 0BR907554C Haldex control unit for Gen 4 AWD. Original Continental module for Audi, VW, Skoda and SEAT vehicles with online coding support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0BR907554C, 0BR598554C, Haldex control unit, HAP542, 5WP33523-04, SW 3018, HW H43, 115928-01, Gen 4 Haldex, Continental, Golf, A3, S3, TT, Octavia, Yeti, Superb, Altea XL, Leon, Toledo\"\u003e\n \u003ctitle\u003e0BR907554C Haldex Control Unit Gen 4 | Refurbished OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished Haldex Control Unit 0BR907554C\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0BR907554C\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM original rear differential \/ Gen 4 Haldex AWD control module for Volkswagen Group vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33523-04\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 3018 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Each module is professionally refurbished, bench tested and resealed with new silicone to provide durability close to a new unit while restoring proper rear-drive engagement and stable AWD system communication.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BR907554C  •  0BR598554C  •  HAP542  •  5WP33523-04  •  115928-01  •  SW 3018  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BR907554  •  0BR907554A  •  0BR907554B  •  0BR907554C  •  0BR598554  •  0BR598554A  •  0BR598554B  •  0BR598554C  •  5WP33523-01  •  5WP33523-02  •  5WP33523-03  •  114479-01\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your existing Haldex control unit and confirm it matches the references listed above. If you are unsure about compatibility, contact us and we will help verify fitment.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolkswagen Group AWD \/ 4x4 vehicles with Gen 4 Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33523-04\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eAdditional Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e115928-01\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e3018\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eH43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRefurbished Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine refurbished OEM Haldex control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0BR907554C\u003c\/strong\u003e. It is a key electronic component of the fourth-generation Haldex all-wheel-drive system and is responsible for managing the rear differential coupling and restoring AWD operation when the original module has failed.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Module Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls rear differential clutch engagement in the Gen 4 Haldex system\u003c\/li\u003e\n \u003cli\u003eHelps restore correct AWD performance when the original module has failed\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and drivetrain electronics\u003c\/li\u003e\n \u003cli\u003eManages the N373 Haldex valve for clutch pressure regulation\u003c\/li\u003e\n \u003cli\u003eSupports stable rear axle engagement in changing traction conditions\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n This module is intended as an OEM replacement for the original control unit. Coding or adaptation may be required after installation depending on the vehicle configuration, and online support is available if needed.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe 0BR907554C is compatible with selected Volkswagen Group vehicles equipped with Gen 4 Haldex AWD. Always verify the exact part number on your existing module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eŠkoda Octavia\u003c\/li\u003e\n \u003cli\u003eŠkoda Yeti\u003c\/li\u003e\n \u003cli\u003eŠkoda Superb\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolkswagen Beetle\u003c\/li\u003e\n \u003cli\u003eVolkswagen Caddy\u003c\/li\u003e\n \u003cli\u003eVolkswagen Golf\u003c\/li\u003e\n \u003cli\u003eVolkswagen Jetta\u003c\/li\u003e\n \u003cli\u003eVolkswagen Sharan\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAudi A3\u003c\/li\u003e\n \u003cli\u003eAudi S3\u003c\/li\u003e\n \u003cli\u003eAudi TT\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eSEAT Altea XL\u003c\/li\u003e\n \u003cli\u003eSEAT Leon\u003c\/li\u003e\n \u003cli\u003eSEAT Toledo\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this control unit fits your vehicle, send us your VIN number or the OEM number from your existing module. We will help confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex control unit commonly causes the following issues:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003eLoss of AWD \/ 4x4 function or no rear axle engagement\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e Control module faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e Haldex clutch pump (V181)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e Clutch control valve (N373)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e All Wheel Drive Control Module (J492) no communication \/ intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e Control module EEPROM error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e Internal control module memory error\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eNo communication fault during diagnostics\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n If this module is being replaced, it is recommended to inspect the Haldex control valve N373 and related system components. A proper VAG-compatible diagnostic scan should be carried out before and after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eVerify the exact OEM part number on the original control unit\u003c\/li\u003e\n \u003cli\u003eDisconnect the module and inspect the connector pins and wiring\u003c\/li\u003e\n \u003cli\u003eInstall the replacement module in the original position\u003c\/li\u003e\n \u003cli\u003eCheck the condition of the Haldex pump and N373 valve\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes with suitable diagnostic equipment\u003c\/li\u003e\n \u003cli\u003eCode or adapt the module if required by the vehicle\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm correct AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"c1a8afa7ae81a2a0b3b2eca4a2b4efa2aeac\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex pump or the N373 clutch control valve can overload the system and trigger repeated module-related diagnostic errors.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, pump or valve faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"\/cdn-cgi\/l\/email-protection#0e676068614e6d6f7c7d236b6d7b206d6163\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only and the supplied unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eCoding or adaptation may be required after installation and online support is included\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n © 2026 Cars-ECU. Product page prepared in the updated BMW-style layout.\n \u003c\/footer\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":50433624441165,"sku":"","price":329.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_5d5f3b52-1781-4cb8-8a02-c21b89a3c5a2.jpg?v=1741337307"},{"product_id":"haldex-control-unit-0br907554c","title":"0BR907554C Haldex control unit Used","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"0BR907554C Haldex Control Unit Gen 4 AWD – used Continental OEM for VW, Audi, Škoda and SEAT vehicles with 4th generation Haldex. Fully tested, 12-month warranty, online support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0BR907554C, 0BR598554C, HAP542, 5WP33523-04, Haldex control unit, Gen 4 Haldex, Continental Haldex ECU, AWD control module, A3 S3 TT Golf Yeti Superb Octavia Haldex\"\u003e\n \u003ctitle\u003e0BR907554C Haldex Control Unit Gen 4 AWD | Used OEM | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: #ffffff; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .info-section p, .info-section ul, .info-section li { color: #ffffff; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 15px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #1a1a1a; padding: 10px; border-radius: 3px; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .info-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .info-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; font-size: 0.92em; color: #ffffff; border-bottom: 1px solid #333333; }\n .fault-codes li:last-child { border-bottom: none; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n min-width: 200px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin-top: 20px;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover {\n background: #E3FC02;\n color: #000000 !important;\n transform: translateY(-1px);\n box-shadow: 0 10px 22px rgba(227, 252, 2, 0.22);\n }\n .btn-contact:hover,\n .btn-contact:focus,\n .btn-contact:active,\n .btn-contact:visited:hover {\n color: #000000 !important;\n }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .spec-label { border-bottom: none; border-radius: 3px 3px 0 0; }\n .spec-value { border-radius: 0 0 3px 3px; margin-bottom: 10px; }\n .btn-contact { width: 100%; max-width: 300px; }\n }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n \n .site-topbar {\n background: #E3FC02;\n color: #000000;\n font-size: 12px;\n font-weight: 700;\n letter-spacing: 0.08em;\n text-transform: uppercase;\n min-height: 36px;\n display: flex;\n align-items: center;\n justify-content: center;\n position: relative;\n padding: 0 48px;\n }\n .site-topbar .chevron {\n position: absolute;\n top: 50%;\n transform: translateY(-50%);\n font-size: 16px;\n line-height: 1;\n color: #000000;\n opacity: 0.9;\n }\n .site-topbar .chevron.left { left: 18px; }\n .site-topbar .chevron.right { right: 18px; }\n .site-header {\n background: #111111;\n border-bottom: 1px solid rgba(255,255,255,0.10);\n }\n .site-header-inner {\n max-width: 1380px;\n margin: 0 auto;\n min-height: 78px;\n padding: 0 24px;\n display: grid;\n grid-template-columns: 1fr auto 1fr;\n align-items: center;\n gap: 24px;\n }\n .site-nav-left,\n .site-nav-right {\n display: flex;\n align-items: center;\n gap: 24px;\n }\n .site-nav-right {\n justify-content: flex-end;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n color: #f5f5f5;\n text-decoration: none;\n font-size: 14px;\n font-weight: 500;\n transition: color 0.2s ease;\n white-space: nowrap;\n }\n .site-nav-link:hover,\n .site-nav-right a:hover {\n color: #E3FC02;\n }\n .site-logo {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n gap: 10px;\n color: #ffffff;\n text-decoration: none;\n font-size: 28px;\n font-weight: 800;\n letter-spacing: 0.08em;\n white-space: nowrap;\n }\n .site-logo-mark {\n width: 22px;\n height: 22px;\n border: 2px solid #ffffff;\n border-radius: 5px;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 12px;\n line-height: 1;\n }\n .site-nav-caret {\n color: #bdbdbd;\n margin-left: 4px;\n font-size: 11px;\n }\n .site-icon-link {\n font-size: 18px !important;\n line-height: 1;\n }\n @media (max-width: 1080px) {\n .site-header-inner {\n grid-template-columns: 1fr;\n padding: 18px 20px;\n gap: 16px;\n }\n .site-nav-left,\n .site-nav-right {\n justify-content: center;\n flex-wrap: wrap;\n gap: 16px;\n }\n .site-logo {\n order: -1;\n }\n }\n @media (max-width: 640px) {\n .site-topbar {\n font-size: 11px;\n padding: 0 36px;\n text-align: center;\n }\n .site-nav-left,\n .site-nav-right {\n gap: 12px;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n font-size: 13px;\n }\n .site-logo {\n font-size: 24px;\n }\n }\n\n \n \/* global-nav-refresh-start *\/\n .site-topbar {\n background: #E3FC02;\n color: #000000;\n font-size: 12px;\n font-weight: 700;\n letter-spacing: 0.08em;\n text-transform: uppercase;\n min-height: 36px;\n display: flex;\n align-items: center;\n justify-content: center;\n position: relative;\n padding: 0 48px;\n }\n .site-topbar .chevron {\n position: absolute;\n top: 50%;\n transform: translateY(-50%);\n font-size: 16px;\n line-height: 1;\n color: #000000;\n opacity: 0.9;\n }\n .site-topbar .chevron.left { left: 18px; }\n .site-topbar .chevron.right { right: 18px; }\n .site-header {\n background: #111111;\n border-bottom: 1px solid rgba(255,255,255,0.10);\n }\n .site-header-inner {\n max-width: 1380px;\n margin: 0 auto;\n min-height: 78px;\n padding: 0 24px;\n display: grid;\n grid-template-columns: 1fr auto 1fr;\n align-items: center;\n gap: 24px;\n }\n .site-nav-left,\n .site-nav-right {\n display: flex;\n align-items: center;\n gap: 24px;\n }\n .site-nav-right {\n justify-content: flex-end;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n color: #f5f5f5;\n text-decoration: none;\n font-size: 14px;\n font-weight: 500;\n transition: color 0.2s ease;\n }\n .site-nav-link:hover,\n .site-nav-right a:hover {\n color: #E3FC02;\n }\n .site-nav-caret {\n color: #E3FC02;\n margin-left: 4px;\n font-size: 12px;\n }\n .site-logo {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n gap: 10px;\n text-decoration: none;\n color: #ffffff;\n font-size: 26px;\n font-weight: 800;\n letter-spacing: 0.08em;\n }\n .site-logo-mark {\n width: 34px;\n height: 34px;\n border-radius: 50%;\n background: #E3FC02;\n color: #000000;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 18px;\n font-weight: 900;\n }\n .site-icon-link {\n width: 34px;\n height: 34px;\n border-radius: 50%;\n border: 1px solid rgba(255,255,255,0.18);\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 16px;\n }\n .site-footer {\n text-align: center;\n padding: 28px 20px 34px;\n color: #b8b8b8;\n font-size: 0.95em;\n margin-top: 34px;\n border-top: 1px solid #E3FC02;\n }\n .site-footer a {\n color: #E3FC02;\n text-decoration: none;\n }\n .site-footer a:hover {\n text-decoration: underline;\n }\n .footer-links {\n display: flex;\n justify-content: center;\n align-items: center;\n flex-wrap: wrap;\n gap: 10px 16px;\n margin-bottom: 14px;\n font-weight: 600;\n }\n .footer-links .sep {\n color: rgba(227,252,2,0.55);\n }\n .footer-disclaimer,\n .footer-source,\n .footer-copy {\n max-width: 900px;\n margin: 10px auto 0;\n line-height: 1.7;\n }\n .footer-copy {\n color: #8f8f8f;\n font-size: 0.9em;\n }\n @media (max-width: 980px) {\n .site-header-inner {\n grid-template-columns: 1fr;\n padding: 16px 20px;\n gap: 14px;\n }\n .site-nav-left,\n .site-nav-right {\n justify-content: center;\n flex-wrap: wrap;\n gap: 12px 18px;\n }\n .site-logo {\n order: -1;\n font-size: 24px;\n }\n }\n @media (max-width: 640px) {\n .site-topbar {\n padding: 0 36px;\n font-size: 11px;\n text-align: center;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n font-size: 13px;\n }\n .site-logo {\n font-size: 22px;\n }\n }\n \/* global-nav-refresh-end *\/\n\n \u003c\/style\u003e\n\n\n\n\u003cdiv class=\"container\"\u003e\n\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed Haldex Control Unit 0BR907554C – 4th Generation AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0BR907554C\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Continental rear differential control module for VAG 4th generation Haldex AWD vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33523-04\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 3018 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Genuine used OEM Haldex controller, bench-tested before dispatch and prepared to restore rear differential control, AWD engagement and stable communication with drivetrain electronics in compatible Gen 4 systems.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BR907554C  •  0BR598554C  •  HAP542  •  5WP33523-04  •  115928-01  •  SW 3018  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BR907554  •  0BR907554A  •  0BR907554B  •  0BR907554C  •  0BR598554  •  0BR598554A  •  0BR598554B  •  0BR598554C  •  5WP33523-01  •  5WP33523-02  •  5WP33523-03  •  5WP33523-04  •  114479-01\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your original Haldex control unit. Vehicle model alone is not always enough to guarantee compatibility.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33523-04\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSW 3018\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHW H43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVAG Group AWD vehicles with 4th generation Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eUsed \/ Fully Tested \/ Functional\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine used original Continental Haldex control unit with OEM number \u003cstrong style=\"color:#E3FC02;\"\u003e0BR907554C\u003c\/strong\u003e, designed for 4th generation Haldex AWD systems used across Volkswagen Group vehicles. The module manages rear axle engagement, controls clutch pressure through the hydraulic system and communicates with ABS, ESP and engine management electronics.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eMonitors speed difference between front and rear axles\u003c\/li\u003e\n \u003cli\u003eControls hydraulic pump pressure for rear clutch engagement\u003c\/li\u003e\n \u003cli\u003eActivates rear-wheel drive automatically when traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and engine management modules\u003c\/li\u003e\n \u003cli\u003eManages the Haldex control valve \u003cstrong\u003eN373\u003c\/strong\u003e for clutch pressure regulation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 14px;\"\u003eTypical failures of the original controller can cause rear-drive loss, N373-related faults, no communication errors, pump faults or ESP \/ ABS warning lights. This tested OEM replacement is intended to restore stable AWD operation in compatible vehicles.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eOnline Coding Support\u003c\/strong\u003e\n Coding support is available if required after installation. If you need guidance with diagnostics or setup, contact us and we will help you choose the correct procedure for your vehicle.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 14px;\"\u003eTypical applications for this Gen 4 Haldex control unit include the following vehicles. Always confirm the part number on your original module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eGolf VI \/ Beetle \/ Jetta (2009–2012)\u003c\/li\u003e\n \u003cli\u003eCaddy III (2010–2015)\u003c\/li\u003e\n \u003cli\u003eTiguan 4Motion\u003c\/li\u003e\n \u003cli\u003eSharan 4Motion\u003c\/li\u003e\n \u003cli\u003ePassat AWD\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eA3 \/ S3 (2009–2012)\u003c\/li\u003e\n \u003cli\u003eTT (2008–2012)\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eOctavia II 4x4 (2008–2013)\u003c\/li\u003e\n \u003cli\u003eYeti (2009–2014)\u003c\/li\u003e\n \u003cli\u003eSuperb II 4x4 (2008–2014)\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAltea XL (2010–2015)\u003c\/li\u003e\n \u003cli\u003eLeon (2009–2011)\u003c\/li\u003e\n \u003cli\u003eToledo (2009–2012)\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n Send us your VIN number or your original ECU part number and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA faulty Haldex control unit can trigger fault codes, communication problems and complete loss of rear-wheel engagement. Typical symptoms include:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e – Control Module Defective\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e – Haldex Clutch Pump Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e – All Wheel Drive Control Module: No Communication\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e – Clutch Control Valve N373 Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e – EEPROM \/ Internal Controller Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e – Internal Control Module Memory Error\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eRear-wheel drive not engaging or AWD malfunction\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n\n \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eLocate the Haldex control unit on the rear differential \/ rear axle assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the electrical connector and remove the old module\u003c\/li\u003e\n \u003cli\u003eInstall the replacement unit and secure all mounting points properly\u003c\/li\u003e\n \u003cli\u003eReconnect all electrical connectors and verify a secure fit\u003c\/li\u003e\n \u003cli\u003eClear fault codes and carry out coding or adaptation if required\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm proper AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended Service Items\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eCheck or replace the Haldex control valve \u003cstrong\u003eN373\u003c\/strong\u003e if faulty\u003c\/li\u003e\n \u003cli\u003eInspect the rear wiring connector and harness for corrosion or damage\u003c\/li\u003e\n \u003cli\u003eCheck Haldex oil condition and service if necessary\u003c\/li\u003e\n \u003cli\u003eInspect the pump before final installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"f29b9c949db291938081df979187dc919d9f\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex control valve N373 or clutch pump can overload the AWD system and trigger recurring module-related diagnostic errors, engagement issues or loss of rear-wheel drive.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, valve, pump or drivetrain faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\" style=\"text-align: center;\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003ePlease verify the part number before ordering\u003c\/li\u003e\n \u003cli\u003eImages are for illustrative purposes only\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eReplacing Haldex oil and checking valve N373 is recommended when fitting a replacement ECU\u003c\/li\u003e\n \u003cli\u003eOnline coding support is available if required after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":50433653080397,"sku":"1","price":289.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"haldex-control-unit-0bs907554d-refurbished","title":"0BS907554D Haldex control unit Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished OEM 0BS907554D Haldex control unit for Gen 4 AWD. Original Continental module for Audi, VW, Skoda and SEAT vehicles with online coding support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0BS907554D, 0BS598554D, Haldex control unit, HAP542, 5WP33527-01, SW 4017, HW H43, Gen 4 Haldex, Continental, Passat, Tiguan, Sharan, Q3, Octavia, Superb, Alhambra\"\u003e\n \u003ctitle\u003e0BS907554D Haldex Control Unit Gen 4 | Refurbished OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished Haldex Control Unit 0BS907554D\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0BS907554D\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM original rear differential \/ Gen 4 Haldex AWD control module for Volkswagen Group vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33527-01\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 4017 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Each module is professionally refurbished, fully bench tested and prepared as a reliable OEM replacement for a faulty original Haldex controller. The unit is intended to restore stable rear differential control, proper AWD engagement and correct communication with drivetrain electronics.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BS907554D  •  0BS598554D  •  HAP542  •  5WP33527-01  •  0BS 907 554 D  •  SW 4017  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BS907554  •  0BS907554A  •  0BS907554B  •  0BS907554C  •  0BS907554D  •  0BS598554  •  0BS598554A  •  0BS598554B  •  0BS598554C  •  0BS598554D  •  5WP33527  •  5WP33524-01  •  5WP33524-02  •  5WP33524-03\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your existing Haldex control unit and confirm it matches the references listed above. If you are unsure about compatibility, contact us and we will help verify fitment.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolkswagen Group AWD \/ 4x4 vehicles with Gen 4 Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33527-01\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e4017\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eH43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRefurbished Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine refurbished OEM Haldex control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0BS907554D\u003c\/strong\u003e. It is a key electronic component of the fourth-generation Haldex all-wheel-drive system and is responsible for activating and regulating the rear differential clutch pack in response to traction demands and driving conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Module Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls rear differential clutch engagement in the 4th gen Haldex system\u003c\/li\u003e\n \u003cli\u003eHelps restore correct AWD performance when the original module has failed\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and drivetrain electronics\u003c\/li\u003e\n \u003cli\u003eManages the N373 Haldex control valve for clutch pressure regulation\u003c\/li\u003e\n \u003cli\u003eSupports stable rear axle engagement in changing traction conditions\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n This module is intended as an OEM replacement for the original control unit. Coding or adaptation may be required after installation depending on the vehicle configuration, and online support is available if needed.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe 0BS907554D is compatible with selected Volkswagen Group vehicles equipped with Gen 4 Haldex AWD. Always verify the exact part number on your existing module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eŠkoda Octavia\u003c\/li\u003e\n \u003cli\u003eŠkoda Superb\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolkswagen Passat\u003c\/li\u003e\n \u003cli\u003eVolkswagen Passat CC\u003c\/li\u003e\n \u003cli\u003eVolkswagen Tiguan\u003c\/li\u003e\n \u003cli\u003eVolkswagen Sharan\u003c\/li\u003e\n \u003cli\u003eVolkswagen Caddy\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAudi Q3\u003c\/li\u003e\n \u003cli\u003eAudi TT\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eSEAT Alhambra\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this control unit fits your vehicle, send us your VIN number or the OEM number from your existing module. We will help confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex control unit commonly causes the following issues:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003eLoss of AWD \/ 4x4 function or no rear axle engagement\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e Control module faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e Haldex clutch pump (V181)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e Clutch control valve (N373)\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e All Wheel Drive Control Module (J492) no communication \/ intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e Control module EEPROM error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e Internal control module memory error\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eNo communication fault during diagnostics\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n If this module is being replaced, it is recommended to inspect the Haldex control valve N373 and related system components. A proper VAG-compatible diagnostic scan should be carried out before and after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eLocate the Haldex control unit mounted on the rear differential assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the electrical connector and remove the old module\u003c\/li\u003e\n \u003cli\u003eInstall the replacement unit and secure all mounting points properly\u003c\/li\u003e\n \u003cli\u003eReconnect all electrical connectors and verify a secure fit\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes with suitable diagnostic equipment\u003c\/li\u003e\n \u003cli\u003eCode or adapt the module if required by the vehicle\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm correct AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"442d2a222b0427253637692127316a272b29\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex pump or the N373 clutch control valve can overload the system and trigger repeated module-related diagnostic errors.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, pump or valve faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"\/cdn-cgi\/l\/email-protection#dbb2b5bdb49bb8baa9a8f6beb8aef5b8b4b6\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only and the supplied unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eCoding or adaptation may be required after installation and online support is included\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n © 2026 Cars-ECU. Product page prepared in the updated BMW-style layout.\n \u003c\/footer\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":50489069240653,"sku":null,"price":329.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_8f8488bd-83b5-4419-83bb-e8cce8cf6e41.jpg?v=1741337474"},{"product_id":"new-haldex-control-unit-0br907554c","title":"0BR907554C Haldex control unit New","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"New 0BR907554C Haldex control unit for VAG AWD vehicles. Continental Gen 4 rear differential module, SW 3018 \/ HW H43, 24-month warranty.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0BR907554C, 0BR598554C, HAP542, 5WP33523-04, 0BR907554A, 0BR907554B, Haldex control unit, Continental, Gen 4 Haldex, Golf 4Motion, Tiguan 4Motion, A3 Quattro, TT Quattro, Octavia 4x4\"\u003e\n \u003ctitle\u003e0BR907554C Haldex Control Unit Gen 4 | New Continental OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n .questions-help { text-align: center; }\n .questions-help h2 { text-align: center; }\n .questions-help p { text-align: center; max-width: 760px; margin: 0 auto; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eNew Haldex Control Unit 0BR907554C – 4th Generation AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0BR907554C\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Continental rear differential control module for VAG AWD vehicles with 4th generation Haldex system.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n New OEM \/ Factory Original\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33523-04\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSW \/ HW Version\u003c\/strong\u003e\n SW 3018 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 24 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eNew OEM Haldex Module\u003c\/strong\u003e\n Factory-original Continental Haldex controller for Gen 4 AWD systems. Designed to restore proper rear differential control, reliable AWD engagement and stable communication with the vehicle drivetrain electronics.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers \u0026amp; Cross-References\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BR907554C  •  0BR598554C  •  HAP542  •  5WP33523-04  •  0BR 907 554 C\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eAlso Compatible With:\u003c\/strong\u003e\n \u003cp\u003e0BR907554  •  0BR907554A  •  0BR907554B  •  0BR907554C  •  0BR598554  •  0BR598554A  •  0BR598554B  •  0BR598554C\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eSupplier References:\u003c\/strong\u003e\n \u003cp\u003eContinental  •  HAP542  •  5WP33523-04  •  SW 3018  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the part number printed directly on your existing Haldex control unit and confirm it corresponds to one of the reference numbers listed above. If you are unsure about compatibility, contact us for verification.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (ECU)\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHW H43\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSW 3018\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eVAG Group – VW, Audi, Škoda, SEAT\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNew OEM \/ Original Module\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCoding Note:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eOnline coding assistance available if required after installation\u003c\/div\u003e\n\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine new original Continental Haldex 4th generation control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0BR907554C\u003c\/strong\u003e. It serves as the electronic management module for the rear AWD coupling system and is responsible for activating and regulating the rear differential clutch pack according to traction demand and driving conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eMonitors rotational speed differences between front and rear axles\u003c\/li\u003e\n \u003cli\u003eControls hydraulic pump pressure for rear differential clutch engagement\u003c\/li\u003e\n \u003cli\u003eActivates rear-wheel drive distribution automatically when traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and engine management modules\u003c\/li\u003e\n \u003cli\u003eManages the N373 Haldex control valve for clutch pressure regulation\u003c\/li\u003e\n \u003cli\u003eHelps restore correct AWD performance when the original module has failed\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eCoding \u0026amp; Programming Note\u003c\/strong\u003e\n After installation, the control unit may require coding to the vehicle using VCDS or compatible VAG diagnostic equipment. Online coding support is included with your purchase if needed.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe 0BR907554C is suitable for VAG group vehicles equipped with 4th generation Haldex AWD systems. Always verify the part number on your existing unit before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eGolf 4Motion\u003c\/li\u003e\n \u003cli\u003eTiguan 4Motion\u003c\/li\u003e\n \u003cli\u003eSharan 4Motion\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eA3 Quattro\u003c\/li\u003e\n \u003cli\u003eS3 Quattro\u003c\/li\u003e\n \u003cli\u003eTT Quattro\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eOctavia 4x4\u003c\/li\u003e\n \u003cli\u003eSuperb 4x4\u003c\/li\u003e\n \u003cli\u003eYeti 4x4\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAltea 4Drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this unit fits your vehicle, send the VIN number or part number from your existing Haldex ECU and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Fault Codes \u0026amp; Symptoms\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex 4th gen control unit commonly triggers one or more of the following symptoms or diagnostic faults:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e – AWD control module not responding\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eN373\u003c\/code\u003e – Haldex control valve problem\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eESP \/ ABS\u003c\/code\u003e – Warning lights caused by AWD control failure\u003c\/li\u003e\n \u003cli\u003eRear-wheel drive not engaging\u003c\/li\u003e\n \u003cli\u003eAWD \/ 4x4 system malfunction\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n A professional VAG-compatible scan tool is recommended to read and code the Haldex AWD module correctly. Standard OBD readers often cannot access the controller directly.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Service Recommendations\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eLocate the Haldex control unit mounted on the rear differential \/ rear axle assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the electrical connector and remove the old module\u003c\/li\u003e\n \u003cli\u003eInstall the replacement unit and secure all mounting points properly\u003c\/li\u003e\n \u003cli\u003eReconnect all electrical connectors and verify a secure fit\u003c\/li\u003e\n \u003cli\u003eCode the unit if required and clear all stored fault codes\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended at Time of Replacement\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eCheck or replace the Haldex control valve \u003cstrong\u003eN373\u003c\/strong\u003e\n\u003c\/li\u003e\n \u003cli\u003eInspect the rear wiring connector and harness for corrosion or damage\u003c\/li\u003e\n \u003cli\u003eCheck Haldex oil condition and service if necessary\u003c\/li\u003e\n \u003cli\u003eClear all stored AWD, ABS and ESP related faults after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the module requires coding assistance after installation, technical support is available to help with setup and compatibility questions. Reach us at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"abc2c5cdc4ebc8cad9d886cec8de85c8c4c6\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e or by using the contact button below.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e24-Month Warranty:\u003c\/strong\u003e This new OEM Haldex control unit is supplied with a 24-month warranty and online support in case the module needs to be coded after installation.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Includes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eNew original OEM module\u003c\/li\u003e\n \u003cli\u003eVerified product condition before dispatch\u003c\/li\u003e\n \u003cli\u003eBasic compatibility guidance before purchase\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Does Not Cover\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect part ordering without part-number verification\u003c\/li\u003e\n \u003cli\u003eDamage caused by installation errors or external vehicle faults\u003c\/li\u003e\n \u003cli\u003eRelated pump, valve or wiring defects outside the module itself\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section questions-help\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eIf you have any questions about compatibility, diagnostics or installation, contact us and we will help you choose the correct Haldex solution for your vehicle.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify the exact part number before ordering\u003c\/li\u003e\n \u003cli\u003eShipping worldwide is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not available at checkout, contact us directly for manual processing\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":50529497579853,"sku":null,"price":499.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/169C9D19-3C9A-461E-A7A1-36312923A27D.jpg?v=1721201953"},{"product_id":"haldex-control-unit-09n907554c-refurbished","title":"09N907554C Haldex control unit Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"09N907554C Haldex Control Unit Gen 4 AWD – refurbished Continental OEM for Volkswagen T5, Multivan and California AWD applications. Fully tested, 12-month warranty, online support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"09N907554C, 09N907554B, 09N907554A, HAP542, 5WP33526-05, 119840-02, Haldex control unit, Gen 4 Haldex, Continental Haldex ECU, VW T5 Multivan California AWD\"\u003e\n \u003ctitle\u003e09N907554C Haldex Control Unit Gen 4 AWD | Refurbished OEM | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: #ffffff; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .info-section p, .info-section ul, .info-section li { color: #ffffff; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 15px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #1a1a1a; padding: 10px; border-radius: 3px; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .info-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .info-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; font-size: 0.92em; color: #ffffff; border-bottom: 1px solid #333333; }\n .fault-codes li:last-child { border-bottom: none; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n min-width: 200px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin-top: 20px;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover {\n background: #E3FC02;\n color: #000000 !important;\n transform: translateY(-1px);\n box-shadow: 0 10px 22px rgba(227, 252, 2, 0.22);\n }\n .btn-contact:hover,\n .btn-contact:focus,\n .btn-contact:active,\n .btn-contact:visited:hover {\n color: #000000 !important;\n }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .spec-label { border-bottom: none; border-radius: 3px 3px 0 0; }\n .spec-value { border-radius: 0 0 3px 3px; margin-bottom: 10px; }\n .btn-contact { width: 100%; max-width: 300px; }\n }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n \n .site-topbar {\n background: #E3FC02;\n color: #000000;\n font-size: 12px;\n font-weight: 700;\n letter-spacing: 0.08em;\n text-transform: uppercase;\n min-height: 36px;\n display: flex;\n align-items: center;\n justify-content: center;\n position: relative;\n padding: 0 48px;\n }\n .site-topbar .chevron {\n position: absolute;\n top: 50%;\n transform: translateY(-50%);\n font-size: 16px;\n line-height: 1;\n color: #000000;\n opacity: 0.9;\n }\n .site-topbar .chevron.left { left: 18px; }\n .site-topbar .chevron.right { right: 18px; }\n .site-header {\n background: #111111;\n border-bottom: 1px solid rgba(255,255,255,0.10);\n }\n .site-header-inner {\n max-width: 1380px;\n margin: 0 auto;\n min-height: 78px;\n padding: 0 24px;\n display: grid;\n grid-template-columns: 1fr auto 1fr;\n align-items: center;\n gap: 24px;\n }\n .site-nav-left,\n .site-nav-right {\n display: flex;\n align-items: center;\n gap: 24px;\n }\n .site-nav-right {\n justify-content: flex-end;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n color: #f5f5f5;\n text-decoration: none;\n font-size: 14px;\n font-weight: 500;\n transition: color 0.2s ease;\n white-space: nowrap;\n }\n .site-nav-link:hover,\n .site-nav-right a:hover {\n color: #E3FC02;\n }\n .site-logo {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n gap: 10px;\n color: #ffffff;\n text-decoration: none;\n font-size: 28px;\n font-weight: 800;\n letter-spacing: 0.08em;\n white-space: nowrap;\n }\n .site-logo-mark {\n width: 22px;\n height: 22px;\n border: 2px solid #ffffff;\n border-radius: 5px;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 12px;\n line-height: 1;\n }\n .site-nav-caret {\n color: #bdbdbd;\n margin-left: 4px;\n font-size: 11px;\n }\n .site-icon-link {\n font-size: 18px !important;\n line-height: 1;\n }\n @media (max-width: 1080px) {\n .site-header-inner {\n grid-template-columns: 1fr;\n padding: 18px 20px;\n gap: 16px;\n }\n .site-nav-left,\n .site-nav-right {\n justify-content: center;\n flex-wrap: wrap;\n gap: 16px;\n }\n .site-logo {\n order: -1;\n }\n }\n @media (max-width: 640px) {\n .site-topbar {\n font-size: 11px;\n padding: 0 36px;\n text-align: center;\n }\n .site-nav-left,\n .site-nav-right {\n gap: 12px;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n font-size: 13px;\n }\n .site-logo {\n font-size: 24px;\n }\n }\n\n \n \/* global-nav-refresh-start *\/\n .site-topbar {\n background: #E3FC02;\n color: #000000;\n font-size: 12px;\n font-weight: 700;\n letter-spacing: 0.08em;\n text-transform: uppercase;\n min-height: 36px;\n display: flex;\n align-items: center;\n justify-content: center;\n position: relative;\n padding: 0 48px;\n }\n .site-topbar .chevron {\n position: absolute;\n top: 50%;\n transform: translateY(-50%);\n font-size: 16px;\n line-height: 1;\n color: #000000;\n opacity: 0.9;\n }\n .site-topbar .chevron.left { left: 18px; }\n .site-topbar .chevron.right { right: 18px; }\n .site-header {\n background: #111111;\n border-bottom: 1px solid rgba(255,255,255,0.10);\n }\n .site-header-inner {\n max-width: 1380px;\n margin: 0 auto;\n min-height: 78px;\n padding: 0 24px;\n display: grid;\n grid-template-columns: 1fr auto 1fr;\n align-items: center;\n gap: 24px;\n }\n .site-nav-left,\n .site-nav-right {\n display: flex;\n align-items: center;\n gap: 24px;\n }\n .site-nav-right {\n justify-content: flex-end;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n color: #f5f5f5;\n text-decoration: none;\n font-size: 14px;\n font-weight: 500;\n transition: color 0.2s ease;\n }\n .site-nav-link:hover,\n .site-nav-right a:hover {\n color: #E3FC02;\n }\n .site-nav-caret {\n color: #E3FC02;\n margin-left: 4px;\n font-size: 12px;\n }\n .site-logo {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n gap: 10px;\n text-decoration: none;\n color: #ffffff;\n font-size: 26px;\n font-weight: 800;\n letter-spacing: 0.08em;\n }\n .site-logo-mark {\n width: 34px;\n height: 34px;\n border-radius: 50%;\n background: #E3FC02;\n color: #000000;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 18px;\n font-weight: 900;\n }\n .site-icon-link {\n width: 34px;\n height: 34px;\n border-radius: 50%;\n border: 1px solid rgba(255,255,255,0.18);\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 16px;\n }\n .site-footer {\n text-align: center;\n padding: 28px 20px 34px;\n color: #b8b8b8;\n font-size: 0.95em;\n margin-top: 34px;\n border-top: 1px solid #E3FC02;\n }\n .site-footer a {\n color: #E3FC02;\n text-decoration: none;\n }\n .site-footer a:hover {\n text-decoration: underline;\n }\n .footer-links {\n display: flex;\n justify-content: center;\n align-items: center;\n flex-wrap: wrap;\n gap: 10px 16px;\n margin-bottom: 14px;\n font-weight: 600;\n }\n .footer-links .sep {\n color: rgba(227,252,2,0.55);\n }\n .footer-disclaimer,\n .footer-source,\n .footer-copy {\n max-width: 900px;\n margin: 10px auto 0;\n line-height: 1.7;\n }\n .footer-copy {\n color: #8f8f8f;\n font-size: 0.9em;\n }\n @media (max-width: 980px) {\n .site-header-inner {\n grid-template-columns: 1fr;\n padding: 16px 20px;\n gap: 14px;\n }\n .site-nav-left,\n .site-nav-right {\n justify-content: center;\n flex-wrap: wrap;\n gap: 12px 18px;\n }\n .site-logo {\n order: -1;\n font-size: 24px;\n }\n }\n @media (max-width: 640px) {\n .site-topbar {\n padding: 0 36px;\n font-size: 11px;\n text-align: center;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n font-size: 13px;\n }\n .site-logo {\n font-size: 22px;\n }\n }\n \/* global-nav-refresh-end *\/\n\n \u003c\/style\u003e\n\n\n\n\u003cdiv class=\"container\"\u003e\n\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished Haldex Control Unit 09N907554C – Gen 4 AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 09N907554C\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM rear differential control module for Volkswagen T5, Multivan and California AWD applications\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33526-05\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 6010 \/ HW H44\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Professionally refurbished Haldex controller with new silicone seal and new cover, designed to restore proper AWD function, rear axle engagement and stable communication in compatible Volkswagen T5-series vehicles.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e09N907554C  •  09N 907 554 C  •  HAP542  •  5WP33526-05  •  119840-02  •  SW 6010  •  HW H44\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e09N907554  •  09N907554A  •  09N907554B  •  09N907554C\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your original Haldex control unit. Vehicle model alone is not always enough to guarantee compatibility.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (ECU \/ AWD Module)\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33526-05\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSW 6010\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHW H44\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eContinental Part Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e119840-02\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolkswagen T5, Multivan and California AWD with 4th Gen Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRefurbished \/ Fully Tested \/ Resealed\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a refurbished OEM Haldex control unit with part number \u003cstrong style=\"color:#E3FC02;\"\u003e09N907554C\u003c\/strong\u003e, intended for 4th-generation Haldex AWD systems in Volkswagen T5-series vehicles. The module controls rear differential engagement, supports torque transfer to the rear axle and communicates with the vehicle’s drivetrain, ABS and ESP systems.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls hydraulic activation of the Haldex coupling for rear-wheel engagement\u003c\/li\u003e\n \u003cli\u003eHelps restore proper AWD \/ 4x4 operation in T5, Multivan and California applications\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS \/ ESP and related drivetrain systems\u003c\/li\u003e\n \u003cli\u003eStores and reports diagnostic trouble codes when faults occur\u003c\/li\u003e\n \u003cli\u003eSupports traction and stability in low-grip road conditions\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 14px;\"\u003eA faulty Haldex ECU can cause AWD disengagement, communication errors or ESP \/ ABS warning lights on the dashboard. This refurbished unit is fully tested and upgraded with new silicone and a new cover for dependable long-term use.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eOnline Coding Support\u003c\/strong\u003e\n Coding support is available if required after installation. If you need diagnostic guidance or setup help, contact us and we will help you choose the correct procedure for your vehicle.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 14px;\"\u003eThis Haldex controller is intended for Volkswagen T5-series AWD vehicles using the matching Gen 4 rear differential control unit. Always confirm the exact number on your original module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eTransporter T5 AWD\u003c\/li\u003e\n \u003cli\u003eMultivan AWD\u003c\/li\u003e\n \u003cli\u003eCalifornia AWD\u003c\/li\u003e\n \u003cli\u003eSelected Volkswagen T5 platform vehicles with matching 09N907554C \/ 09N907554B \/ 09N907554A controller\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n Send us your VIN number or your original ECU part number and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eProblems with the Haldex control unit can trigger fault codes, communication problems and loss of AWD function. Typical symptoms include:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e – Control Module Defective\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e – Haldex Clutch Pump (V181) Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e – Clutch Control Valve N373 Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e – AWD module not responding\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eN373\u003c\/code\u003e – Haldex clutch control valve problem\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eAWD not working correctly or rear axle not engaging\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n\n \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eDisconnect the battery and safely access the Haldex module on the rear differential\u003c\/li\u003e\n \u003cli\u003eRemove the old controller and inspect connector pins and housing for corrosion or moisture\u003c\/li\u003e\n \u003cli\u003eInstall the replacement ECU carefully and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear fault codes and confirm AWD module communication with a suitable diagnostic tool\u003c\/li\u003e\n \u003cli\u003eCarry out coding or adaptation if required by the vehicle after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended Service Items\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eReplace the Haldex control valve \u003cstrong\u003eN373\u003c\/strong\u003e when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eCheck wiring, connectors and surrounding module area\u003c\/li\u003e\n \u003cli\u003eInspect the Haldex pump and related AWD components\u003c\/li\u003e\n \u003cli\u003eVerify AWD operation after installation and road test\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"f990979f96b99a988b8ad49c9a8cd79a9694\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture ingress and poor sealing can affect the control unit housing and electronics, leading to corrosion, unstable communication and AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex control valve N373 or related pump components can trigger repeated faults, poor clutch engagement and loss of rear axle drive.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eInternal controller faults, worn electronic components or memory problems can cause intermittent operation or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Connector Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged connectors, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, valve, pump or drivetrain faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\" style=\"text-align: center;\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003ePlease verify the part number before ordering\u003c\/li\u003e\n \u003cli\u003eImages are for illustrative purposes only\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eReplacing the Haldex valve N373 is recommended when fitting a replacement ECU\u003c\/li\u003e\n \u003cli\u003eOnline coding support is available if required after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":50600719647053,"sku":"","price":449.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_304585b2-bd30-4733-ae97-aee2f4cd5f24.jpg?v=1741337252"},{"product_id":"haldex-control-unit-2k0907554a-refurbished","title":"2K0907554A Haldex control unit Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished OEM 2K0907554A Haldex control unit for Gen 4 AWD. Original Continental module for Volkswagen Caddy AWD vehicles with online coding support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"2K0907554A, Haldex control unit, Gen 4 Haldex, HAP542, 5WP33525-04, SW 5005, HW H43, 114477-01, Continental, Caddy 4Motion, Caddy AWD, Caddy Maxi 4Motion\"\u003e\n \u003ctitle\u003e2K0907554A Haldex Control Unit Gen 4 | Refurbished OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished Haldex Control Unit 2K0907554A\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 2K0907554A\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM original rear differential \/ Gen 4 Haldex AWD control module for Volkswagen Caddy vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33525-04\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 5005 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Each module is professionally refurbished, sealed with new silicone and fitted with a new cover. Fully tested before dispatch for durability similar to a new module and supplied as a reliable OEM replacement.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e2K0907554A  •  2K0 907 554 A  •  HAP542  •  5WP33525-04  •  5WP33525  •  114477-01  •  SW 5005  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e2K0907554A  •  2K0907554\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your existing Haldex control unit and confirm it matches the references listed above. If you are unsure about compatibility, contact us and we will help verify fitment.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolkswagen Caddy AWD vehicles with Gen 4 Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33525-04\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eContinental Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e114477-01\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e5005\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eH43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRefurbished Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a refurbished original Continental Haldex control unit with OEM number \u003cstrong style=\"color: #E3FC02;\"\u003e2K0907554A\u003c\/strong\u003e, developed for Volkswagen Caddy AWD vehicles equipped with the 4th generation Haldex system. The module manages rear axle engagement by controlling hydraulic pressure inside the Haldex coupling and communicating with the vehicle AWD, ABS and ESP systems.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Module Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls rear-wheel engagement when extra traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and drivetrain electronics\u003c\/li\u003e\n \u003cli\u003eMonitors system operation and stores diagnostic trouble codes\u003c\/li\u003e\n \u003cli\u003eControls pump and clutch pressure strategy in the Haldex coupling\u003c\/li\u003e\n \u003cli\u003eHelps restore proper AWD operation when the original ECU has failed\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n This module is intended as an OEM replacement for the original control unit. Coding or adaptation may be required after installation depending on the vehicle configuration, and online support is available if needed.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThis Haldex control unit is intended for Volkswagen Caddy AWD applications. Always confirm the part number on your old module before purchase.\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolkswagen Caddy 4Motion\u003c\/li\u003e\n \u003cli\u003eVolkswagen Caddy AWD\u003c\/li\u003e\n \u003cli\u003eVolkswagen Caddy Maxi 4Motion\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this control unit fits your vehicle, send us your VIN number or the OEM number from your existing module. We will help confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex control unit commonly causes the following issues:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e Control Module defective\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e Haldex Clutch Pump electrical fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e Haldex Control Valve N373 fault \/ defective\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e AWD module not responding\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eN373\u003c\/code\u003e Haldex valve related fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eESP \/ ABS\u003c\/code\u003e Warning lights caused by AWD malfunction\u003c\/li\u003e\n \u003cli\u003eLoss of rear-wheel drive or intermittent AWD operation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n If this module is being replaced, it is recommended to inspect the Haldex control valve N373, pump condition, wiring and connector pins. A proper diagnostic scan should be carried out before and after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eDisconnect the battery and safely access the Haldex ECU on the rear differential\u003c\/li\u003e\n \u003cli\u003eRemove the old control unit and inspect the connector for corrosion or moisture\u003c\/li\u003e\n \u003cli\u003eInstall the replacement ECU carefully and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes and check communication with a suitable diagnostic tool\u003c\/li\u003e\n \u003cli\u003eCarry out coding if required by the vehicle after installation\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm correct AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If you need help with coding, diagnostics or compatibility, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"e28b8c848da281839091cf878197cc818d8f\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Connector Corrosion\u003c\/h3\u003e\n \u003cp\u003eMoisture and contamination at the connector or housing can damage internal electronics and lead to unstable communication or total AWD failure.\u003c\/p\u003e\n\n \u003ch3\u003e2. Pump or Valve Related Faults\u003c\/h3\u003e\n \u003cp\u003eIssues with the Haldex pump or N373 control valve can overload the system and trigger repeated control module faults.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eInternal circuit wear and electronic failure can cause intermittent operation, no communication faults or complete loss of rear axle engagement.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading drivetrain-related errors.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to controller operation under normal use\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, pump or valve faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"\/cdn-cgi\/l\/email-protection#c5acaba3aa85a6a4b7b6e8a0a6b0eba6aaa8\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only and the supplied unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eCoding or adaptation may be required after installation and online support is included\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n © 2026 Cars-ECU. Product page prepared in the updated BMW-style layout.\n \u003c\/footer\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":50924267503949,"sku":"1","price":449.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_7a98dd84-254a-4199-b62c-ee3cdb843030.jpg?v=1741337123"},{"product_id":"haldex-control-unit-0br907554b-refurbished","title":"0BR907554B Haldex control unit Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished 0BR907554B Haldex Control Unit 4th Gen. Tested \u0026amp; functional, 12-month warranty. Continental OEM. Fits VW Golf, Tiguan, Sharan, Audi A3, S3, TT, Skoda Octavia, Superb, Yeti and SEAT AWD models.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0BR907554B, 0BR598554B, 0BR907554B, 0BR907554, 0BR598554A, 0BR598554, Haldex control unit, 4th generation Haldex, AWD control unit, Continental, 5WP33523-03, HAP542, VW Golf, Tiguan, Audi A3, S3, TT, Skoda Octavia\"\u003e\n \u003ctitle\u003e0BR907554B Haldex Control Unit 4th Gen AWD | Refurbished OEM | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .info-section p, .info-section ul, .info-section li { color: #ffffff; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .info-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .info-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #1a1a1a; padding: 10px; border-radius: 3px; color: #ffffff; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .spec-label { border-bottom: none; border-radius: 3px 3px 0 0; }\n .spec-value { border-radius: 0 0 3px 3px; margin-bottom: 10px; }\n }\n .btn-contact {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n min-width: 200px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin-top: 20px;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n\n .btn-contact:hover {\n background: #E3FC02;\n color: #000000 !important;\n transform: translateY(-1px);\n box-shadow: 0 10px 22px rgba(227, 252, 2, 0.22);\n }\n\n .btn-contact:hover,\n .btn-contact:focus,\n .btn-contact:active,\n .btn-contact:visited:hover {\n color: #000000 !important;\n }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; column-count: 2; column-gap: 20px; }\n .fault-codes li { padding: 5px 0; font-size: 0.9em; color: #ffffff; break-inside: avoid; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n @media (max-width: 768px) { .fault-codes ul { column-count: 1; } }\n @media (max-width: 768px) { .btn-contact { width: 100%; max-width: 300px; } }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished Haldex Control Unit 0BR907554B – 4th Generation AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0BR907554B\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.1em; color: #ffffff;\"\u003eOriginal Continental – Rear Differential Control Module for VAG AWD Vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished – Fully Tested \u0026amp; Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental (Original OEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSW \/ HW Version\u003c\/strong\u003e\n SW: 3017  \/  HW: H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003e✓ Tested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Each control unit is professionally refurbished, resealed with new silicone, and bench-tested prior to dispatch to verify full functionality. This gives durability similar to a new module and it is ready for direct installation into compatible AWD vehicles.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers \u0026amp; Cross-References\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BR907554B  •  0BR598554B  •  HAP542  •  5WP33523-03  •  0BR 907 554 B\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\" style=\"margin-top: 10px;\"\u003e\n \u003cstrong\u003eAlso Compatible With:\u003c\/strong\u003e\n \u003cp\u003e0BR907554  •  0BR907554A  •  0BR907554B  •  0BR598554  •  0BR598554A  •  0BR598554B\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003e⚠️ Always Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the part number printed directly on your existing Haldex control unit and confirm it corresponds to one of the reference numbers listed above. If you are unsure about compatibility, contact us – we are happy to assist.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (ECU)\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHW H43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSW 3017\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVAG Group – VW, Audi, Škoda, SEAT\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRefurbished – Fully Tested \u0026amp; Resealed\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eWarranty Period:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e12 Months\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine refurbished original Continental Haldex 4th generation control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0BR907554B\u003c\/strong\u003e. It functions as the electronic management module of the rear AWD coupling system, responsible for activating and regulating the rear differential clutch pack in response to traction demands and driving conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eMonitors rotational speed differences between front and rear axles\u003c\/li\u003e\n \u003cli\u003eControls the hydraulic pump pressure for rear differential clutch engagement\u003c\/li\u003e\n \u003cli\u003eActivates rear-wheel drive distribution automatically when traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and engine management modules\u003c\/li\u003e\n \u003cli\u003eManages the N373 Haldex control valve for clutch pressure regulation\u003c\/li\u003e\n \u003cli\u003eProtects the coupling system from thermal overload\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eℹ️ Coding \u0026amp; Programming Note\u003c\/strong\u003e\n After installation, the control unit may require coding to the vehicle using VCDS or compatible VAG diagnostic equipment. Online coding support is included with your purchase – contact us at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"f59c9b939ab596948786d8909680db969a98\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eThe 0BR907554B is compatible with the following VAG group vehicles equipped with Haldex 4th generation AWD systems. Always verify the part number on your existing unit:\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eGolf 4Motion\u003c\/li\u003e\n \u003cli\u003eTiguan 4Motion\u003c\/li\u003e\n \u003cli\u003eSharan 4Motion\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eA3 Quattro\u003c\/li\u003e\n \u003cli\u003eS3 Quattro\u003c\/li\u003e\n \u003cli\u003eTT Quattro\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eOctavia 4x4\u003c\/li\u003e\n \u003cli\u003eSuperb 4x4\u003c\/li\u003e\n \u003cli\u003eYeti 4x4\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAltea 4Drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003e✓ Not Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this unit fits your vehicle, send us your VIN number or the part number from your existing unit. We will confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Fault Codes\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eA defective Haldex 4th gen control unit commonly triggers one or more of the following fault codes or symptoms:\u003c\/p\u003e\n\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e – AWD Control Module (J492): No Communications\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e – Haldex Clutch Pump: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e – Haldex Control Valve N373: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01316\u003c\/code\u003e – ABS Control Module: Check DTC Memory – Intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e – Control Module: Faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e – EEPROM: Memory Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e – Control Module: Memory \/ Checksum Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eESP \/ ABS\u003c\/code\u003e – Warning lights caused by AWD control failure\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e131599\u003c\/code\u003e (U0114) – AWD Control Unit: No Communication\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Diagnostic Tip\u003c\/strong\u003e\n A professional VAG-compatible scan tool (VCDS, ODIS, VCP) is required to read AWD module faults. Standard OBD2 readers typically cannot communicate with the Haldex AWD controller. Always scan module 22 directly for accurate fault diagnosis.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Calibration\u003c\/h2\u003e\n\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eLocate the Haldex control unit mounted on the rear differential \/ rear axle assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the electrical connector and remove all mounting fasteners\u003c\/li\u003e\n \u003cli\u003eCarefully remove the old control unit from the coupling housing\u003c\/li\u003e\n \u003cli\u003ePosition the replacement unit and secure all mounting points\u003c\/li\u003e\n \u003cli\u003eReconnect all electrical connectors and verify secure fitment\u003c\/li\u003e\n \u003cli\u003eConnect a VAG-compatible diagnostic tool and code the unit to the vehicle\u003c\/li\u003e\n \u003cli\u003eClear all stored fault codes and perform a test drive\u003c\/li\u003e\n \u003cli\u003eConfirm AWD engagement using the diagnostic tool after the test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"success-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e✓ Online Technical Support Included\u003c\/strong\u003e\n If the module requires coding assistance after installation, our technical team is available to help. Reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"f59c9b939ab596948786d8909680db969a98\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eRecommended Maintenance at Time of Installation\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex control valve N373 at the same time as fitting the new control unit\u003c\/li\u003e\n \u003cli\u003eRefurbished unit is resealed with new silicone for durability similar to a new module\u003c\/li\u003e\n \u003cli\u003eReplace Haldex oil when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eInspect the wiring connector and harness for corrosion or damage\u003c\/li\u003e\n \u003cli\u003eCheck AWD system fuses dedicated to the Haldex circuit\u003c\/li\u003e\n \u003cli\u003eClear all stored diagnostic fault codes after installation and perform a test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eThe control unit is located near the rear axle in an exposed position. Over time, moisture can penetrate the housing, corroding the internal circuit board and causing communication failures or complete loss of AWD function.\u003c\/p\u003e\n\n \u003ch3\u003e2. Power Supply Faults\u003c\/h3\u003e\n \u003cp\u003eThe Gen 4 Haldex system relies on dedicated 12V supply lines protected by fuses. Blown fuses, corroded pins, or damaged wiring at the rear connector are a common cause of total AWD loss, often without an obvious dashboard warning.\u003c\/p\u003e\n\n \u003ch3\u003e3. Thermal Stress\u003c\/h3\u003e\n \u003cp\u003eExtended high-load driving or repeated AWD engagement can generate excessive heat that degrades solder joints and internal electronic components within the control unit over time.\u003c\/p\u003e\n\n \u003ch3\u003e4. Neglected Haldex Oil\u003c\/h3\u003e\n \u003cp\u003eOld or contaminated Haldex fluid leaves deposits that clog internal hydraulic passages and accelerate wear on the pump and N373 valve, leading to incorrect control unit readings and eventual AWD failure.\u003c\/p\u003e\n\n \u003cdiv class=\"warning-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e⚠️ Recommended Maintenance Intervals\u003c\/strong\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex oil every 40,000 – 60,000 km\u003c\/li\u003e\n \u003cli\u003eInspect and replace N373 control valve at each oil service if worn\u003c\/li\u003e\n \u003cli\u003eInspect rear wiring harness and connector block annually\u003c\/li\u003e\n \u003cli\u003eScan AWD module 22 if any dashboard warning lights appear\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n\n \u003cp\u003e\u003cstrong style=\"color: #E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit has been fully tested and is covered by a 12-month warranty against functional defects under normal operating conditions.\u003c\/p\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Coverage Includes:\u003c\/strong\u003e\u003c\/p\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eElectronic control unit malfunctions\u003c\/li\u003e\n \u003cli\u003eCommunication failures with AWD, ABS or ESP modules\u003c\/li\u003e\n \u003cli\u003eN373 valve control circuit defects\u003c\/li\u003e\n \u003cli\u003eInternal calibration memory errors\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Exclusions:\u003c\/strong\u003e Damage resulting from incorrect installation, incompatible vehicle fitment, external electrical faults, or physical damage during handling.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Recommendation: Replace Haldex Oil \u0026amp; N373 Valve When Fitting This Unit\u003c\/strong\u003e\n Fresh Haldex fluid and a new N373 control valve protect the used control unit and ensure correct AWD operation. \u003ca href=\"https:\/\/cars-ecu.com\/products\/original-oil-for-haldex-2-5-gen\" style=\"color: #E3FC02;\"\u003eOrder Haldex Oil →\u003c\/a\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\" style=\"text-align: center;\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 10px;\"\u003eOur technical team is ready to assist with compatibility checks, installation guidance, and coding support.\u003c\/p\u003e\n \u003cbr\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only – the actual unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping available (if your country is not listed at checkout, contact us for personal processing)\u003c\/li\u003e\n \u003cli\u003eIt is recommended to replace Haldex oil and N373 valve when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eOnline support is included in case the module requires coding after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n \u003cp\u003e© Cars-ECU.com | Used OEM Automotive Electronics | Haldex AWD Control Units\u003c\/p\u003e\n \u003c\/footer\u003e\n\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":50924308955469,"sku":"","price":329.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/29D58F76-42B9-4705-9213-D0A3DE72DEE4.jpg?v=1741337029"},{"product_id":"haldex-control-unit-volvo-5wp33518-01","title":"5WP33518-01 Haldex control unit Volvo Used","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Used 5WP33518-01 Haldex control unit for Volvo AWD. Original Siemens DEM module for XC70, XC90, S60, V70 and XC60 with online coding support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"5WP33518-01, 5WP3351801, 5WP33518-03, 5WP33518, Haldex control unit, Volvo AWD, Gen 4 Haldex, Siemens, HAP542, 110684-01, XC70, XC90, XC60, S60, V70, DEM module\"\u003e\n \u003ctitle\u003e5WP33518-01 Haldex Control Unit Volvo AWD | Used OEM | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed OEM Haldex Control Unit 5WP33518-01 – Volvo AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 5WP33518-01\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Siemens rear differential electronic module for Volvo AWD vehicles with Gen 4 Haldex coupling.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used – Fully Tested \u0026amp; Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Siemens (Original OEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33518\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSiemens Reference\u003c\/strong\u003e\n 110684-01\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Used original Haldex control unit, cleaned and tested before dispatch. Designed to restore rear axle engagement and proper AWD operation in compatible Volvo vehicles.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers \u0026amp; Cross-References\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eMain OEM Part Numbers:\u003c\/strong\u003e\n \u003cp\u003e5WP33518-01  •  5WP3351801  •  5WP33518  •  5WP33518-03\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eSupplier \/ Module References:\u003c\/strong\u003e\n \u003cp\u003eHAP542  •  Siemens 110684-01\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before ordering, compare the part number on your current Haldex \/ DEM module with the references listed above. If you are unsure, contact us and we will help verify compatibility.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Electronic Module (DEM \/ AWD ECU)\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSiemens\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33518\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSiemens Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e110684-01\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolvo AWD vehicles with Haldex coupling\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eUsed – Fully Tested \u0026amp; Functional\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupport:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eOnline support in case coding is required\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a used original Siemens Haldex control unit with OEM number \u003cstrong style=\"color: #E3FC02;\"\u003e5WP33518-01\u003c\/strong\u003e, designed for Volvo AWD systems using the fourth-generation Haldex coupling. The module functions as the electronic management unit of the rear differential system and controls torque transfer to the rear axle when traction is needed.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls the Haldex coupling to engage rear-wheel drive when required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS \/ ESP and drivetrain systems\u003c\/li\u003e\n \u003cli\u003eMonitors AWD operation and stores diagnostic trouble codes\u003c\/li\u003e\n \u003cli\u003eManages hydraulic clutch pressure strategy in the rear coupling\u003c\/li\u003e\n \u003cli\u003eHelps restore proper AWD operation when the original ECU has failed\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eCoding Support\u003c\/strong\u003e\n Online support is included in case the module needs to be coded after installation. If you need assistance, contact us and we will help with the next steps.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eCommon Volvo applications for this Haldex control unit include the models below. Always confirm the part number on your current module before purchase.\u003c\/p\u003e\n\n \u003ch3\u003eVolvo\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolvo XC70 AWD\u003c\/li\u003e\n \u003cli\u003eVolvo XC90 AWD\u003c\/li\u003e\n \u003cli\u003eVolvo S60 AWD\u003c\/li\u003e\n \u003cli\u003eVolvo V70 AWD\u003c\/li\u003e\n \u003cli\u003eVolvo XC60 AWD\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n Send us your VIN number or a photo of your existing part label and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Faults \u0026amp; Symptoms\u003c\/h2\u003e\n \u003cp\u003eProblems with the Haldex control unit can cause the AWD system to stop working or operate intermittently. Common symptoms and diagnostic issues include:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e – AWD control module not responding\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eN373\u003c\/code\u003e – Haldex control valve \/ clutch pressure valve fault\u003c\/li\u003e\n \u003cli\u003eLoss of rear-wheel drive \/ AWD not working at all\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eIntermittent AWD engagement or stored communication faults\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Recommended Service\u003c\/h2\u003e\n \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eDisconnect the battery and safely access the rear differential Haldex module\u003c\/li\u003e\n \u003cli\u003eRemove the old control unit and inspect the connector for corrosion or moisture\u003c\/li\u003e\n \u003cli\u003eInstall the replacement ECU carefully and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes and check communication with a suitable diagnostic tool\u003c\/li\u003e\n \u003cli\u003eCarry out coding if required by the vehicle after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended While Replacing the Unit\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInspect the Haldex control valve if related faults are stored\u003c\/li\u003e\n \u003cli\u003eRenew Haldex oil \/ service fluid\u003c\/li\u003e\n \u003cli\u003eInspect wiring and connector condition\u003c\/li\u003e\n \u003cli\u003eCheck for remaining AWD, ESP or ABS faults after fitting\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If you need help with coding, diagnostics or compatibility, reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"a2cbccc4cde2c1c3d0d18fc7c1d78cc1cdcf\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n \u003ch3\u003e1. Moisture Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eWater ingress, condensation or connector corrosion can interrupt communication and damage the internal electronics of the DEM module.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Hydraulic System Faults\u003c\/h3\u003e\n \u003cp\u003eRelated Haldex valve or hydraulic pressure issues can overload the control unit and trigger repeated AWD or actuator-related faults.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eAge, vibration and thermal cycling can cause internal circuit or memory problems, leading to intermittent AWD operation or complete loss of rear drive control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, weak power supply or poor connector contact can create no-communication errors and unstable module behaviour.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003eWarranty Included:\u003c\/strong\u003e This used Haldex control unit has been tested for correct operation and is supplied with a functionality warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, valve or hydraulic system faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eIf you want help with compatibility, installation or coding support, contact us and we will assist you.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify the part number on your current DEM \/ Haldex control unit before placing an order\u003c\/li\u003e\n \u003cli\u003eThis is a used original OEM module, cleaned and tested before dispatch\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only and the supplied unit may differ slightly in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eCoding may be required after installation and online support is included\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n © 2026 Cars-ECU. Product page prepared in the updated layout.\n \u003c\/footer\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51201097466189,"sku":"","price":199.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"haldex-control-unit-land-rover-5wp33519-04","title":"5WP33519-04 Haldex control unit Land Rover Used","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Used OEM 5WP33519-04 Haldex control unit for Land Rover AWD Gen 4. Original Continental module for Freelander 2, LR2 and Range Rover Evoque with online technical support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"5WP33519-04, 5WP3351904, Haldex control unit, Land Rover Haldex ECU, HAP542, 113679-01, AWD Gen 4, Continental, Freelander 2, LR2, Range Rover Evoque\"\u003e\n \u003ctitle\u003e5WP33519-04 Haldex Control Unit Gen 4 | Used OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed Haldex Control Unit 5WP33519-04\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 5WP33519-04\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM original rear differential \/ Gen 4 Haldex AWD control module for Land Rover vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 113679-01\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eOEM Reference\u003c\/strong\u003e\n 5WP33519-04 \/ 5WP3351904\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n This control unit has been function-tested before dispatch and is supplied as a fully operational OEM replacement part for compatible Land Rover AWD applications.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e5WP33519-04  •  5WP3351904  •  5WP33519  •  5WP33519-03  •  5WP33519-02  •  5WP33519-01  •  HAP542  •  113679-01\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, compare the part number on your original Haldex control unit with the references above. If you are unsure, contact us and we will help confirm compatibility.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eLand Rover AWD vehicles\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 113679-01\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eUsed Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eWarranty Period:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e12 Months\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupport:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eOnline Technical Support Included\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine used original Continental Haldex control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e5WP33519-04\u003c\/strong\u003e, designed for 4th generation AWD systems used in selected Land Rover vehicles. The module controls the rear differential coupling and manages torque transfer to the rear axle when traction support is required.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Module Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls rear differential clutch engagement in the Gen 4 Haldex system\u003c\/li\u003e\n \u003cli\u003eSupports torque transfer to the rear axle when traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with AWD and related drivetrain electronics\u003c\/li\u003e\n \u003cli\u003eHelps restore proper AWD operation when the original module has failed\u003c\/li\u003e\n \u003cli\u003eProvides an OEM replacement solution for communication and rear-drive faults\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n This module is intended as an OEM replacement for the original control unit. Some vehicles may require coding, configuration, or adaptation after installation, and online support is available if assistance is needed during setup.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThis Haldex control unit is commonly fitted to selected Land Rover AWD vehicles. Always match the original part number before purchase.\u003c\/p\u003e\n\n \u003ch3\u003eLand Rover\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eLand Rover Freelander 2\u003c\/li\u003e\n \u003cli\u003eLand Rover LR2\u003c\/li\u003e\n \u003cli\u003eRange Rover Evoque\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n Send us your VIN number or a photo of your existing module label and we will help verify whether this control unit is suitable for your vehicle.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex control unit may cause one or more of the following issues:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003eNo rear-wheel drive engagement or no AWD assistance\u003c\/li\u003e\n \u003cli\u003eLoss of traction from the rear axle\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e Haldex \/ AWD module not detected by diagnostics\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eN373\u003c\/code\u003e Haldex valve related fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eESP \/ ABS\u003c\/code\u003e Warning lights on the dashboard linked to AWD malfunction\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eAWD Inactive\u003c\/code\u003e Rear axle does not engage under load\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eTraction Loss\u003c\/code\u003e Vehicle behaves like front-wheel drive only\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eIntermittent Fault\u003c\/code\u003e AWD operation works only occasionally\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n Always check the Haldex control unit and related wiring before replacing other AWD components. Communication faults and rear-drive loss are often caused directly by a failed module.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eLocate the Haldex ECU on the rear differential assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the battery and unplug the electrical connector\u003c\/li\u003e\n \u003cli\u003eRemove the mounting bolts and detach the old control unit\u003c\/li\u003e\n \u003cli\u003eInstall the replacement module and reconnect all connectors securely\u003c\/li\u003e\n \u003cli\u003eCheck the AWD system with a suitable diagnostic tool after installation\u003c\/li\u003e\n \u003cli\u003eComplete coding or adaptation if required by the vehicle\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes and road test the vehicle\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If you need assistance with installation or coding, our technical team can help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"f891969e97b89b998a8bd59d9b8dd69b9795\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eMoisture and road contamination can damage the connector area and internal electronics, leading to unstable AWD communication or complete module failure.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eProblems with the Haldex pump or valve can overload the system and trigger recurring faults that may affect rear axle engagement.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eInternal circuit wear and electronic component failure can cause intermittent communication problems, loss of AWD function or inactive rear drive.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Connector Damage\u003c\/h3\u003e\n \u003cp\u003eDamaged pins, poor terminal contact or harness faults can interrupt module operation and create misleading drivetrain or traction-related errors.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to controller operation under normal use\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, pump or valve faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"\/cdn-cgi\/l\/email-protection#2d44434b426d4e4c5f5e00484e58034e4240\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify the part number before ordering\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eUsed original OEM part supplied tested and functional\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n © 2026 Cars-ECU. Product page prepared in the updated BMW-style layout.\n \u003c\/footer\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":51205799477581,"sku":"","price":199.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"haldex-control-unit-volvo-5wp33502-01","title":"5WP33502-01 Haldex control unit Volvo Used","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Used 5WP33502-01 Haldex control unit for Volvo AWD. Original Siemens DEM module for V70, XC70 and XC90 with online support and tested operation.\"\u003e\n \u003cmeta name=\"keywords\" content=\"5WP33502-01, 5WP33502, 5WP 33502-01, Haldex control unit, Volvo AWD, Gen 3 Haldex, Siemens, HAP542, 109204-01, 36001751, 30783061, 30713163, 30759702, XC90, XC70, V70, DEM module\"\u003e\n \u003ctitle\u003e5WP33502-01 Haldex Control Unit Volvo AWD | Used OEM | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed OEM Haldex Control Unit 5WP33502-01 – Volvo AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 5WP33502-01\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Siemens rear differential electronic module for Volvo AWD vehicles with Gen 3 Haldex coupling.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 3rd Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used – Fully Tested \u0026amp; Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Siemens (Original OEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33502\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSiemens Reference\u003c\/strong\u003e\n 109204-01\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Used original Haldex control unit, cleaned and tested before dispatch. Designed to restore rear axle engagement and proper AWD operation in compatible Volvo vehicles.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers \u0026amp; Cross-References\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eMain OEM Part Number:\u003c\/strong\u003e\n \u003cp\u003e5WP33502-01  •  5WP33502  •  5WP 33502-01\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eSupplier \/ Module References:\u003c\/strong\u003e\n \u003cp\u003eHAP542  •  Siemens 109204-01\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eAssociated Volvo DEM Numbers:\u003c\/strong\u003e\n \u003cp\u003e36001751  •  30783061  •  30713163  •  30759702\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before ordering, compare the part number on your current Haldex \/ DEM module with the references listed above. If you are unsure, contact us and we will help verify compatibility.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHaldex AWD 3rd Generation\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eRear Differential Electronic Module (DEM \/ AWD ECU)\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSiemens\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33502\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSiemens Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e109204-01\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eVolvo AWD vehicles with Haldex coupling\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUsed – Fully Tested \u0026amp; Functional\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupport:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eOnline support in case coding is required\u003c\/div\u003e\n\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a used original Siemens Haldex control unit with OEM number \u003cstrong style=\"color: #E3FC02;\"\u003e5WP33502-01\u003c\/strong\u003e, designed for Volvo AWD systems using the Haldex coupling. The module functions as the electronic management unit of the rear differential system and controls torque transfer to the rear axle when traction is needed.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls the Haldex coupling to engage rear-wheel drive when required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS \/ ESP and drivetrain systems\u003c\/li\u003e\n \u003cli\u003eMonitors AWD operation and stores diagnostic trouble codes\u003c\/li\u003e\n \u003cli\u003eManages hydraulic clutch pressure strategy in the rear coupling\u003c\/li\u003e\n \u003cli\u003eHelps restore proper AWD operation when the original ECU has failed\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eCoding Support\u003c\/strong\u003e\n Online support is included in case the module needs to be coded after installation. If you need assistance, contact us and we will help with the next steps.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eCommon Volvo applications for this Haldex control unit include the models below. Always confirm the part number on your current module before purchase.\u003c\/p\u003e\n\n \u003ch3\u003eVolvo\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolvo V70 AWD\u003c\/li\u003e\n \u003cli\u003eVolvo XC70 AWD\u003c\/li\u003e\n \u003cli\u003eVolvo XC90 AWD\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n Send us your VIN number or a photo of your existing part label and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Faults \u0026amp; Symptoms\u003c\/h2\u003e\n \u003cp\u003eProblems with the Haldex control unit can cause the AWD system to stop working or operate intermittently. Common symptoms and diagnostic issues include:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e – AWD control module not responding\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eN373\u003c\/code\u003e – Haldex control valve \/ clutch pressure valve fault\u003c\/li\u003e\n \u003cli\u003eLoss of rear-wheel drive \/ AWD not working at all\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eIntermittent AWD engagement or stored communication faults\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Recommended Service\u003c\/h2\u003e\n \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eDisconnect the battery and safely access the rear differential Haldex module\u003c\/li\u003e\n \u003cli\u003eRemove the old control unit and inspect the connector for corrosion or moisture\u003c\/li\u003e\n \u003cli\u003eInstall the replacement ECU carefully and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes and check communication with a suitable diagnostic tool\u003c\/li\u003e\n \u003cli\u003eCarry out coding if required by the vehicle after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended While Replacing the Unit\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eReplace or inspect the Haldex control valve if faulty\u003c\/li\u003e\n \u003cli\u003eRenew Haldex oil \/ service fluid\u003c\/li\u003e\n \u003cli\u003eInspect wiring and connector condition\u003c\/li\u003e\n \u003cli\u003eCheck for remaining AWD, ESP or ABS faults after fitting\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the module requires coding assistance or you need advice after installation, our technical team is available to help. Reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"dcb5b2bab39cbfbdaeaff1b9bfa9f2bfb3b1\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n \u003ch3\u003e1. Moisture Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eWater ingress, condensation or connector corrosion can interrupt communication and damage the internal electronics of the DEM module.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Hydraulic System Faults\u003c\/h3\u003e\n \u003cp\u003eRelated Haldex valve or hydraulic pressure issues can overload the control unit and trigger repeated AWD or actuator-related faults.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eAge, vibration and thermal cycling can cause internal circuit or memory problems, leading to intermittent AWD operation or complete loss of rear drive control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, weak power supply or poor connector contact can create no-communication errors and unstable module behaviour.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, valve or hydraulic system faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eIf you have any questions about compatibility, diagnostics, or installation, contact us and we will help you choose the correct Haldex solution for your Volvo.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available – if your country is not shown at checkout, contact us directly\u003c\/li\u003e\n \u003cli\u003eReplacing Haldex oil during installation is recommended\u003c\/li\u003e\n \u003cli\u003eOnline support is included if the module requires coding after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n © 2026 Cars-ECU. Product page prepared in the updated layout.\n \u003c\/footer\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51205949620557,"sku":"","price":319.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"haldex-control-unit-0ay907554d","title":"0AY907554D Haldex control unit Used","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"0AY907554D Haldex Control Unit Gen 4 AWD – used Continental OEM for VAG vehicles with 4th generation Haldex. Fully tested, 12-month warranty, online support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0AY907554D, 0AY598554D, HAP542, 5WP33522-03, 0BR907554, 0BS907554D, Haldex control unit, Gen 4 Haldex, Continental Haldex ECU, AWD control module, Audi VW Skoda Seat Haldex\"\u003e\n \u003ctitle\u003e0AY907554D Haldex Control Unit Gen 4 AWD | Used OEM | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: #ffffff; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; 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padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 15px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #1a1a1a; padding: 10px; border-radius: 3px; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .info-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .info-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; font-size: 0.92em; color: #ffffff; border-bottom: 1px solid #333333; }\n .fault-codes li:last-child { border-bottom: none; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n min-width: 200px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin-top: 20px;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover {\n background: #E3FC02;\n color: #000000 !important;\n transform: translateY(-1px);\n box-shadow: 0 10px 22px rgba(227, 252, 2, 0.22);\n }\n .btn-contact:hover,\n .btn-contact:focus,\n .btn-contact:active,\n .btn-contact:visited:hover {\n color: #000000 !important;\n }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .spec-label { border-bottom: none; border-radius: 3px 3px 0 0; }\n .spec-value { border-radius: 0 0 3px 3px; margin-bottom: 10px; }\n .btn-contact { width: 100%; max-width: 300px; }\n }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n \n .site-topbar {\n background: #E3FC02;\n color: #000000;\n font-size: 12px;\n font-weight: 700;\n letter-spacing: 0.08em;\n text-transform: uppercase;\n min-height: 36px;\n display: flex;\n align-items: center;\n justify-content: center;\n position: relative;\n padding: 0 48px;\n }\n .site-topbar .chevron {\n position: absolute;\n top: 50%;\n transform: translateY(-50%);\n font-size: 16px;\n line-height: 1;\n color: #000000;\n opacity: 0.9;\n }\n .site-topbar .chevron.left { left: 18px; }\n .site-topbar .chevron.right { right: 18px; }\n .site-header {\n background: #111111;\n border-bottom: 1px solid rgba(255,255,255,0.10);\n }\n .site-header-inner {\n max-width: 1380px;\n margin: 0 auto;\n min-height: 78px;\n padding: 0 24px;\n display: grid;\n grid-template-columns: 1fr auto 1fr;\n align-items: center;\n gap: 24px;\n }\n .site-nav-left,\n .site-nav-right {\n display: flex;\n align-items: center;\n gap: 24px;\n }\n .site-nav-right {\n justify-content: flex-end;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n color: #f5f5f5;\n text-decoration: none;\n font-size: 14px;\n font-weight: 500;\n transition: color 0.2s ease;\n white-space: nowrap;\n }\n .site-nav-link:hover,\n .site-nav-right a:hover {\n color: #E3FC02;\n }\n .site-logo {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n gap: 10px;\n color: #ffffff;\n text-decoration: none;\n font-size: 28px;\n font-weight: 800;\n letter-spacing: 0.08em;\n white-space: nowrap;\n }\n .site-logo-mark {\n width: 22px;\n height: 22px;\n border: 2px solid #ffffff;\n border-radius: 5px;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 12px;\n line-height: 1;\n }\n .site-nav-caret {\n color: #bdbdbd;\n margin-left: 4px;\n font-size: 11px;\n }\n .site-icon-link {\n font-size: 18px !important;\n line-height: 1;\n }\n @media (max-width: 1080px) {\n .site-header-inner {\n grid-template-columns: 1fr;\n padding: 18px 20px;\n gap: 16px;\n }\n .site-nav-left,\n .site-nav-right {\n justify-content: center;\n flex-wrap: wrap;\n gap: 16px;\n }\n .site-logo {\n order: -1;\n }\n }\n @media (max-width: 640px) {\n .site-topbar {\n font-size: 11px;\n padding: 0 36px;\n text-align: center;\n }\n .site-nav-left,\n .site-nav-right {\n gap: 12px;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n font-size: 13px;\n }\n .site-logo {\n font-size: 24px;\n }\n }\n\n \n \/* global-nav-refresh-start *\/\n .site-topbar {\n background: #E3FC02;\n color: #000000;\n font-size: 12px;\n font-weight: 700;\n letter-spacing: 0.08em;\n text-transform: uppercase;\n min-height: 36px;\n display: flex;\n align-items: center;\n justify-content: center;\n position: relative;\n padding: 0 48px;\n }\n .site-topbar .chevron {\n position: absolute;\n top: 50%;\n transform: translateY(-50%);\n font-size: 16px;\n line-height: 1;\n color: #000000;\n opacity: 0.9;\n }\n .site-topbar .chevron.left { left: 18px; }\n .site-topbar .chevron.right { right: 18px; }\n .site-header {\n background: #111111;\n border-bottom: 1px solid rgba(255,255,255,0.10);\n }\n .site-header-inner {\n max-width: 1380px;\n margin: 0 auto;\n min-height: 78px;\n padding: 0 24px;\n display: grid;\n grid-template-columns: 1fr auto 1fr;\n align-items: center;\n gap: 24px;\n }\n .site-nav-left,\n .site-nav-right {\n display: flex;\n align-items: center;\n gap: 24px;\n }\n .site-nav-right {\n justify-content: flex-end;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n color: #f5f5f5;\n text-decoration: none;\n font-size: 14px;\n font-weight: 500;\n transition: color 0.2s ease;\n }\n .site-nav-link:hover,\n .site-nav-right a:hover {\n color: #E3FC02;\n }\n .site-nav-caret {\n color: #E3FC02;\n margin-left: 4px;\n font-size: 12px;\n }\n .site-logo {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n gap: 10px;\n text-decoration: none;\n color: #ffffff;\n font-size: 26px;\n font-weight: 800;\n letter-spacing: 0.08em;\n }\n .site-logo-mark {\n width: 34px;\n height: 34px;\n border-radius: 50%;\n background: #E3FC02;\n color: #000000;\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 18px;\n font-weight: 900;\n }\n .site-icon-link {\n width: 34px;\n height: 34px;\n border-radius: 50%;\n border: 1px solid rgba(255,255,255,0.18);\n display: inline-flex;\n align-items: center;\n justify-content: center;\n font-size: 16px;\n }\n .site-footer {\n text-align: center;\n padding: 28px 20px 34px;\n color: #b8b8b8;\n font-size: 0.95em;\n margin-top: 34px;\n border-top: 1px solid #E3FC02;\n }\n .site-footer a {\n color: #E3FC02;\n text-decoration: none;\n }\n .site-footer a:hover {\n text-decoration: underline;\n }\n .footer-links {\n display: flex;\n justify-content: center;\n align-items: center;\n flex-wrap: wrap;\n gap: 10px 16px;\n margin-bottom: 14px;\n font-weight: 600;\n }\n .footer-links .sep {\n color: rgba(227,252,2,0.55);\n }\n .footer-disclaimer,\n .footer-source,\n .footer-copy {\n max-width: 900px;\n margin: 10px auto 0;\n line-height: 1.7;\n }\n .footer-copy {\n color: #8f8f8f;\n font-size: 0.9em;\n }\n @media (max-width: 980px) {\n .site-header-inner {\n grid-template-columns: 1fr;\n padding: 16px 20px;\n gap: 14px;\n }\n .site-nav-left,\n .site-nav-right {\n justify-content: center;\n flex-wrap: wrap;\n gap: 12px 18px;\n }\n .site-logo {\n order: -1;\n font-size: 24px;\n }\n }\n @media (max-width: 640px) {\n .site-topbar {\n padding: 0 36px;\n font-size: 11px;\n text-align: center;\n }\n .site-nav-link,\n .site-nav-right a,\n .site-nav-right span {\n font-size: 13px;\n }\n .site-logo {\n font-size: 22px;\n }\n }\n \/* global-nav-refresh-end *\/\n\n \u003c\/style\u003e\n\n\n\n\u003cdiv class=\"container\"\u003e\n\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed Haldex Control Unit 0AY907554D – 4th Generation AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0AY907554D\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Continental rear differential control module for VAG 4th generation Haldex AWD vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33522-03\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 0042 \/ HW H43\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Genuine used OEM Haldex controller, fully tested and prepared to restore rear differential control, AWD engagement and stable communication in compatible Gen 4 drivetrain systems.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554D  •  0AY 907 554 D  •  0AY598554D  •  HAP542  •  5WP33522-03  •  SW 0042  •  HW H43\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554  •  0AY907554A  •  0AY907554B  •  0AY907554C  •  0AY907554D  •  0AY907554E  •  0AY598554  •  0AY598554A  •  0AY598554B  •  0AY598554C  •  0AY598554D  •  0BR907554  •  0BR907554A  •  0BR907554B  •  0BR907554C  •  0BS907554  •  0BS907554A  •  0BS907554B  •  0BS907554C  •  0BS907554D\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eInterchangeable Supplier References:\u003c\/strong\u003e\n \u003cp\u003e5WP33522-01  •  5WP33522-02  •  5WP33522-03  •  5WP33522-04  •  5WP33523-01  •  5WP33523-02  •  5WP33523-03  •  5WP33524-01  •  5WP33524-02  •  5WP33524-03  •  5WP33524-04\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your original Haldex control unit. Vehicle model alone is not always enough to guarantee compatibility.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33522-03\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSW 0042\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHW H43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVAG Group AWD vehicles with 4th generation Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eUsed \/ Fully Tested \/ Functional\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine used original Continental Haldex control unit with OEM number \u003cstrong style=\"color:#E3FC02;\"\u003e0AY907554D\u003c\/strong\u003e, designed for 4th generation Haldex AWD systems used across Volkswagen Group vehicles. The module manages rear axle engagement, controls clutch pressure through the hydraulic system and communicates with ABS, ESP and engine management electronics.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eMonitors speed difference between front and rear axles\u003c\/li\u003e\n \u003cli\u003eControls hydraulic pump pressure for rear clutch engagement\u003c\/li\u003e\n \u003cli\u003eActivates rear-wheel drive automatically when traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and engine management modules\u003c\/li\u003e\n \u003cli\u003eManages the Haldex control valve \u003cstrong\u003eN373\u003c\/strong\u003e for clutch pressure regulation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 14px;\"\u003eTypical failures of the original controller can cause complete loss of AWD \/ 4WD, front-wheel-drive-only operation, poor traction on slippery surfaces, communication errors, N373 valve faults or ESP \/ ABS warning lights. This tested OEM replacement is intended to restore stable AWD operation in compatible vehicles.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eOnline Coding Support\u003c\/strong\u003e\n In most cases the unit is plug and play. If coding or adaptation is required after installation, online support is available and we can help with the correct procedure for your vehicle.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 14px;\"\u003eTypical applications for this Gen 4 Haldex control unit include the following vehicles. Always confirm the part number on your original module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eA3 \/ S3 (2009–2013)\u003c\/li\u003e\n \u003cli\u003eTT (2008–2012)\u003c\/li\u003e\n \u003cli\u003eQ3 (2011–2014)\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eGolf VI \/ Beetle \/ Jetta (2008–2013)\u003c\/li\u003e\n \u003cli\u003eCaddy III (2010–2015)\u003c\/li\u003e\n \u003cli\u003ePassat B6 \/ B7 4Motion (2008–2014)\u003c\/li\u003e\n \u003cli\u003ePassat CC (2008–2017)\u003c\/li\u003e\n \u003cli\u003eSharan II (2009–2015)\u003c\/li\u003e\n \u003cli\u003eTiguan (2008–2013)\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eOctavia II 4x4 (2008–2013)\u003c\/li\u003e\n \u003cli\u003eYeti (2009–2014)\u003c\/li\u003e\n \u003cli\u003eSuperb II 4x4 (2008–2014)\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAlhambra (2009–2015)\u003c\/li\u003e\n \u003cli\u003eAltea XL (2010–2015)\u003c\/li\u003e\n \u003cli\u003eLeon (2009–2012)\u003c\/li\u003e\n \u003cli\u003eToledo (2009–2012)\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n Send us your VIN number or your original ECU part number and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA faulty Haldex control unit can trigger fault codes, communication problems and complete loss of rear-wheel engagement. Typical symptoms include:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e – Control Module Defective\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e – Haldex Clutch Pump Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e – All Wheel Drive Control Module: No Communication\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e – Clutch Control Valve N373 Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e – EEPROM \/ Internal Controller Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e – Internal Control Module Memory Error\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eComplete loss of AWD \/ 4WD or rear-wheel drive not engaging\u003c\/li\u003e\n \u003cli\u003eShuddering in tight low-speed turns at full lock\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n\n \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eLocate the Haldex control unit on the rear differential \/ rear axle assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the electrical connector and remove the old module\u003c\/li\u003e\n \u003cli\u003eInstall the replacement unit and secure all mounting points properly\u003c\/li\u003e\n \u003cli\u003eReconnect all electrical connectors and verify a secure fit\u003c\/li\u003e\n \u003cli\u003eIn most cases no coding is required after installation\u003c\/li\u003e\n \u003cli\u003eIf fitting a unit from an automatic \/ DSG vehicle into a manual gearbox car, perform Basic Settings in VCDS (22-AWD module, channel 20) to clear fault code 01315\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm proper AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended Service Items\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eChange the Haldex oil and filter during replacement\u003c\/li\u003e\n \u003cli\u003eCheck or replace the Haldex control valve \u003cstrong\u003eN373\u003c\/strong\u003e if faulty\u003c\/li\u003e\n \u003cli\u003eInspect the rear wiring connector, harness and clutch pump\u003c\/li\u003e\n \u003cli\u003eClear stored AWD, ABS and ESP related faults after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"3b52555d547b585a4948165e584e15585456\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex control valve N373 or clutch pump can overload the AWD system and trigger recurring module-related diagnostic errors, engagement issues or loss of rear-wheel drive.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, valve, pump or drivetrain faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\" style=\"text-align: center;\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003ePlease verify the part number before ordering\u003c\/li\u003e\n \u003cli\u003eImages are for illustrative purposes only\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eChanging Haldex oil and filter and checking valve N373 is recommended when fitting a replacement ECU\u003c\/li\u003e\n \u003cli\u003eOnline coding support is available if required after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":52236839453005,"sku":null,"price":279.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"haldex-control-unit-5wp33531-ford","title":"5wp33531 Haldex control unit Ford Used","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Used 5WP33531 Haldex control unit for Ford Kuga AWD. Continental Gen 4 rear differential module, fully tested with warranty and online support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"5WP33531, 5WP33531-02, 5WP33531-01, 114793-01, 9V4N-04C016-AD, 9V4N-04C016-AE, Haldex control unit, Ford Kuga AWD, Continental, HAP542, Gen 4 Haldex, rear differential ECU\"\u003e\n \u003ctitle\u003e5WP33531 Haldex Control Unit Ford Kuga AWD | Used Continental OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed Haldex Control Unit 5WP33531 – Ford Kuga AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 5WP33531 \/ 5WP33531-02\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eContinental rear differential control module for Ford Kuga AWD vehicles with 4th generation Haldex coupling.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used – Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33531\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eFord Reference\u003c\/strong\u003e\n 114793-01 \/ 9V4N-04C016-AD \/ AE\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eUsed \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Haldex control unit for Ford Gen 4 AWD systems designed to restore proper coupling engagement and rear axle drive support in compatible Ford Kuga vehicles.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers \u0026amp; Cross-References\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eMain OEM Part Numbers:\u003c\/strong\u003e\n \u003cp\u003e5WP33531-02  •  5WP33531  •  5WP33531-01\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eFord \/ Supplier References:\u003c\/strong\u003e\n \u003cp\u003e114793-01  •  9V4N-04C016-AD  •  9V4N-04C016-AE  •  HAP542\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Please compare the printed number on your current Haldex controller before ordering. Vehicle model alone is not always enough to guarantee compatibility.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (ECU \/ AWD Module)\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33531\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFord Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e114793-01 \/ 9V4N-04C016-AD \/ 9V4N-04C016-AE\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eFord Kuga AWD (2008–2012)\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUsed – Fully Functional\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupport:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eOnline support in case the module needs coding assistance\u003c\/div\u003e\n\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a used Continental Haldex control unit for Ford Gen 4 AWD systems with OEM number \u003cstrong style=\"color: #E3FC02;\"\u003e5WP33531-02\u003c\/strong\u003e. It is intended for the rear differential Haldex system in Ford Kuga AWD vehicles and helps restore proper clutch engagement, rear axle activation and stable drivetrain communication.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls the Haldex coupling for rear-wheel engagement when needed\u003c\/li\u003e\n \u003cli\u003eSupports stable AWD \/ 4x4 operation in Ford Kuga vehicles\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS \/ ESP and related drivetrain systems\u003c\/li\u003e\n \u003cli\u003eStores and reports fault codes when the AWD system detects problems\u003c\/li\u003e\n \u003cli\u003eHelps restore correct rear differential control when the original ECU has failed\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eUsed OEM Replacement\u003c\/strong\u003e\n This controller is intended as an OEM replacement for compatible Ford Kuga AWD vehicles using the matching Haldex Gen 4 control unit. Online support is available if setup or coding help is required.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThis Haldex control unit is intended for Ford AWD applications using the matching 4th generation Haldex rear differential module. Always verify the exact printed number on your original unit before purchase.\u003c\/p\u003e\n\n \u003ch3\u003eFord\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eFord Kuga AWD (12\/2008–2012)\u003c\/li\u003e\n \u003cli\u003eFord Kuga 2.0 TDCi 4x4 (2010–2011)\u003c\/li\u003e\n \u003cli\u003eFord Kuga 2.5i 4x4 (2010–2011)\u003c\/li\u003e\n \u003cli\u003eVehicles fitted with matching 5WP33531-01 \/ 5WP33531-02 controller\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n Send us your VIN number or a photo of your existing Haldex module label and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Fault Codes \u0026amp; Symptoms\u003c\/h2\u003e\n \u003cp\u003eProblems with the Haldex control unit can cause AWD malfunction, no rear-drive engagement and dashboard warning lights. Common fault codes and symptoms include:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003eB2477\u003c\/code\u003e – Control unit configuration error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eP0960\u003c\/code\u003e – Pressure regulating solenoid valve electrical circuit fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e – No communication possible with the Haldex ECU\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eN373\u003c\/code\u003e – Haldex clutch control valve fault\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003cli\u003eAWD \/ 4x4 not engaging correctly\u003c\/li\u003e\n \u003cli\u003eLoss of rear axle drive support\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Recommended Service\u003c\/h2\u003e\n \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eDisconnect the battery and safely access the Haldex module on the rear differential\u003c\/li\u003e\n \u003cli\u003eRemove the old controller and inspect the connector pins and housing for corrosion or moisture\u003c\/li\u003e\n \u003cli\u003eInstall the replacement ECU carefully and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes and confirm communication with a suitable diagnostic tool\u003c\/li\u003e\n \u003cli\u003eCarry out coding if required after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended While Replacing the Unit\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eCheck the Haldex control valve N373 if related faults are stored\u003c\/li\u003e\n \u003cli\u003eInspect the wiring, connectors and surrounding module area\u003c\/li\u003e\n \u003cli\u003eVerify rear axle engagement after installation and road test\u003c\/li\u003e\n \u003cli\u003eCheck for stored ABS \/ ESP \/ AWD faults after fitting\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the module needs coding assistance or you need help with compatibility, reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"771e19111837141605045a1214025914181a\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n \u003ch3\u003e1. Moisture Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eWater or corrosion inside the module or connector can interrupt communication and damage the internal electronics.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Hydraulic Faults\u003c\/h3\u003e\n \u003cp\u003eHaldex valve or pressure-control problems can overload the ECU and trigger repeated AWD faults or loss of clutch engagement.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eAge, vibration and thermal cycling can lead to internal circuit problems, unstable AWD operation and stored fault codes.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring or weak power supply can create no-communication faults and prevent the rear axle system from operating correctly.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWarranty \u0026amp; Support\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003eWarranty of Functionality:\u003c\/strong\u003e This used Haldex control unit is supplied with functionality warranty and online support in case the module needs coding or installation guidance.\u003c\/p\u003e\n\n \u003ch3\u003eSupport Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eCompatibility guidance before purchase\u003c\/li\u003e\n \u003cli\u003eBasic installation and coding advice\u003c\/li\u003e\n \u003cli\u003eHelp with identifying common diagnostic issues\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and diagnostics support.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this module fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available – if your country is not shown at checkout, contact directly for manual processing\u003c\/li\u003e\n \u003cli\u003eController is intended for Ford Kuga AWD applications only where the original number matches\u003c\/li\u003e\n \u003cli\u003eOnline support is included if the module needs coding assistance\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":52387709681997,"sku":null,"price":309.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"haldex-control-unit-0ay907554h-refurbished","title":"0AY907554H Haldex control unit Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished 0AY907554H Haldex Control Unit 4th Gen. Fully restored, tested \u0026amp; functional, 12-month warranty. Continental OEM. Fits VW Golf, Tiguan, Sharan, Audi A3, TT, Skoda Octavia, Superb, Seat AWD.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0AY907554H, 0AY598554H, Haldex control unit, 4th generation Haldex, AWD control unit, Continental, VW Tiguan, Golf, Audi A3, TT, Skoda Octavia\"\u003e\n \u003ctitle\u003e0AY907554H Haldex Control Unit 4th Gen AWD | Refurbished | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .info-section p, .info-section ul, .info-section li { color: #ffffff; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .info-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .info-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #1a1a1a; padding: 10px; border-radius: 3px; color: #ffffff; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .spec-label { border-bottom: none; border-radius: 3px 3px 0 0; }\n .spec-value { border-radius: 0 0 3px 3px; margin-bottom: 10px; }\n }\n .btn-contact { display: inline-block; background-color: #000000; color: #E3FC02 !important; padding: 14px 36px; text-decoration: none; border-radius: 5px; font-weight: 700; font-size: 1em; margin-top: 20px; transition: all 0.3s; border: 2px solid #E3FC02; }\n .btn-contact:hover { background-color: #E3FC02; color: #000000 !important; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; column-count: 2; column-gap: 20px; }\n .fault-codes li { padding: 5px 0; font-size: 0.9em; color: #ffffff; break-inside: avoid; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n @media (max-width: 768px) { .fault-codes ul { column-count: 1; } }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished Haldex Control Unit 0AY907554H – 4th Generation AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0AY907554H\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.1em; color: #ffffff;\"\u003eOriginal Continental – Rear Differential Control Module for VAG AWD Vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished – Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental (Original OEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003e✓ Refurbished – New Cover \u0026amp; Silicone Sealing Applied\u003c\/strong\u003e\n Each unit is fully restored with a new cover and new silicone sealing, providing durability comparable to a new module. Bench-tested prior to dispatch and fully operational for direct installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554H  •  0AY598554H  •  HAP542  •  5WP33532  •  0AY 907 554 H\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\" style=\"margin-top: 10px;\"\u003e\n \u003cstrong\u003eAlso Compatible With:\u003c\/strong\u003e\n \u003cp\u003e0AY907554  •  0AY907554A  •  0AY907554B  •  0AY907554C  •  0AY907554D  •  0AY907554E  •  0AY598554  •  0AY598554A  •  0AY598554B  •  0AY598554C  •  0AY598554D  •  0AY598544\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003e⚠️ Always Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the part number printed directly on your existing Haldex control unit and confirm it corresponds to one of the reference numbers listed above. If you are unsure about compatibility, contact us – we are happy to assist.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (ECU)\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHW H43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSW 0044\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVAG Group – VW, Audi, Škoda, SEAT\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRefurbished – New Cover \u0026amp; Silicone, Tested \u0026amp; Verified\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eWarranty Period:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e12 Months\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a refurbished original Continental Haldex 4th generation control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0AY907554H\u003c\/strong\u003e. The unit has been fully restored with a new cover and new silicone sealing, then bench-tested to ensure functionality equivalent to a new module. It manages the rear AWD coupling system, controlling the engagement and pressure of the rear differential clutch pack based on driving conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eMonitors rotational speed differences between front and rear axles\u003c\/li\u003e\n \u003cli\u003eControls the hydraulic pump pressure for rear differential clutch engagement\u003c\/li\u003e\n \u003cli\u003eActivates rear-wheel drive distribution automatically when traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and engine management modules\u003c\/li\u003e\n \u003cli\u003eManages the N373 Haldex control valve for clutch pressure regulation\u003c\/li\u003e\n \u003cli\u003eProtects the coupling system from thermal overload\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eℹ️ Coding \u0026amp; Programming Note\u003c\/strong\u003e\n After installation, the control unit may require coding to the vehicle using VCDS or compatible VAG diagnostic equipment. Online coding support is included with your purchase – contact us at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"f59c9b939ab596948786d8909680db969a98\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eThe 0AY907554H is compatible with the following VAG group vehicles equipped with Haldex 4th generation AWD systems. Always verify the part number on your existing unit:\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eTiguan 4Motion\u003c\/li\u003e\n \u003cli\u003eSharan 4Motion\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eA3 Quattro\u003c\/li\u003e\n \u003cli\u003eTT Quattro\u003c\/li\u003e\n \u003cli\u003eQ3 Quattro\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eOctavia 4x4\u003c\/li\u003e\n \u003cli\u003eSuperb 4x4\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAlhambra 4Drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003e✓ Not Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this unit fits your vehicle, send us your VIN number or the part number from your existing unit. We will confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Fault Codes\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eA defective Haldex 4th gen control unit commonly triggers one or more of the following fault codes:\u003c\/p\u003e\n\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e – AWD Control Module (J492): No Communications\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e – Haldex Clutch Pump: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e – Haldex Control Valve N373: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01316\u003c\/code\u003e – ABS Control Module: Check DTC Memory – Intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e – Control Module: Faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e – EEPROM: Memory Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e – Control Module: Memory \/ Checksum Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e131599\u003c\/code\u003e (U0114) – AWD Control Unit: No Communication\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Diagnostic Tip\u003c\/strong\u003e\n A professional VAG-compatible scan tool (VCDS, ODIS, VCP) is required to read AWD module faults. Standard OBD2 readers typically cannot communicate with the Haldex AWD controller. Always scan module 22 directly for accurate fault diagnosis.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Calibration\u003c\/h2\u003e\n\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eLocate the Haldex control unit mounted on the rear differential \/ rear axle assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the electrical connector and remove all mounting fasteners\u003c\/li\u003e\n \u003cli\u003eCarefully remove the old control unit from the coupling housing\u003c\/li\u003e\n \u003cli\u003ePosition the replacement unit and secure all mounting points\u003c\/li\u003e\n \u003cli\u003eReconnect all electrical connectors and verify secure fitment\u003c\/li\u003e\n \u003cli\u003eConnect a VAG-compatible diagnostic tool and code the unit to the vehicle\u003c\/li\u003e\n \u003cli\u003eClear all stored fault codes and perform a test drive\u003c\/li\u003e\n \u003cli\u003eConfirm AWD engagement using the diagnostic tool after the test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"success-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e✓ Online Technical Support Included\u003c\/strong\u003e\n If the module requires coding assistance after installation, our technical team is available to help. Reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"f59c9b939ab596948786d8909680db969a98\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eRecommended Maintenance at Time of Installation\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex control valve N373 at the same time as fitting the new control unit\u003c\/li\u003e\n \u003cli\u003eReplace Haldex oil when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eInspect the wiring connector and harness for corrosion or damage\u003c\/li\u003e\n \u003cli\u003eCheck AWD system fuses dedicated to the Haldex circuit\u003c\/li\u003e\n \u003cli\u003eClear all stored diagnostic fault codes after installation and perform a test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eThe control unit is located near the rear axle in an exposed position. Over time, moisture can penetrate the housing, corroding the internal circuit board and causing communication failures or complete loss of AWD function.\u003c\/p\u003e\n\n \u003ch3\u003e2. Power Supply Faults\u003c\/h3\u003e\n \u003cp\u003eThe Gen 4 Haldex system relies on dedicated 12V supply lines protected by fuses. Blown fuses, corroded pins, or damaged wiring at the rear connector are a common cause of total AWD loss, often without an obvious dashboard warning.\u003c\/p\u003e\n\n \u003ch3\u003e3. Thermal Stress\u003c\/h3\u003e\n \u003cp\u003eExtended high-load driving or repeated AWD engagement can generate excessive heat that degrades solder joints and internal electronic components within the control unit over time.\u003c\/p\u003e\n\n \u003ch3\u003e4. Neglected Haldex Oil\u003c\/h3\u003e\n \u003cp\u003eOld or contaminated Haldex fluid leaves deposits that clog internal hydraulic passages and accelerate wear on the pump and N373 valve, leading to incorrect control unit readings and eventual AWD failure.\u003c\/p\u003e\n\n \u003cdiv class=\"warning-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e⚠️ Recommended Maintenance Intervals\u003c\/strong\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex oil every 40,000 – 60,000 km\u003c\/li\u003e\n \u003cli\u003eInspect and replace N373 control valve at each oil service if worn\u003c\/li\u003e\n \u003cli\u003eInspect rear wiring harness and connector block annually\u003c\/li\u003e\n \u003cli\u003eScan AWD module 22 if any dashboard warning lights appear\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n\n \u003cp\u003e\u003cstrong style=\"color: #E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been fully tested and is covered by a 12-month warranty against functional defects under normal operating conditions.\u003c\/p\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Coverage Includes:\u003c\/strong\u003e\u003c\/p\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eElectronic control unit malfunctions\u003c\/li\u003e\n \u003cli\u003eCommunication failures with AWD, ABS or ESP modules\u003c\/li\u003e\n \u003cli\u003eN373 valve control circuit defects\u003c\/li\u003e\n \u003cli\u003eInternal calibration memory errors\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Exclusions:\u003c\/strong\u003e Damage resulting from incorrect installation, incompatible vehicle fitment, external electrical faults, or physical damage during handling.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Recommendation: Replace Haldex Oil \u0026amp; N373 Valve When Fitting This Unit\u003c\/strong\u003e\n Fresh Haldex fluid and a new N373 control valve protect the refurbished control unit and ensure correct AWD operation. \u003ca href=\"https:\/\/cars-ecu.com\/products\/original-oil-for-haldex-2-5-gen\" style=\"color: #E3FC02;\"\u003eOrder Haldex Oil →\u003c\/a\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\" style=\"text-align: center;\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 10px;\"\u003eOur technical team is ready to assist with compatibility checks, installation guidance, and coding support.\u003c\/p\u003e\n \u003cbr\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only – the actual unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping available (if your country is not listed at checkout, contact us for personal processing)\u003c\/li\u003e\n \u003cli\u003eIt is recommended to replace Haldex oil and N373 valve when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eOnline support is included in case the module requires coding after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n \u003cp\u003e© Cars-ECU.com | Refurbished OEM Automotive Electronics | Haldex AWD Control Units\u003c\/p\u003e\n \u003c\/footer\u003e\n\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":52462110146893,"sku":null,"price":339.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_6f237bf8-5b60-4def-98ad-049e0f03750d.jpg?v=1741337565"},{"product_id":"haldex-control-unit-0bs907554c","title":"0BS907554C Haldex control unit Used","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Used 0BS907554C Haldex Control Unit 4th Gen. Tested \u0026amp; functional, 12-month warranty. Continental OEM. Fits VW Golf, Tiguan, Passat, Sharan, Audi Q3, Skoda Octavia, Superb, Seat Alhambra AWD.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0BS907554C, 0BS598554C, Haldex control unit, 4th generation Haldex, AWD control unit, Continental, VW Tiguan, Passat, Audi Q3, Skoda Octavia, Superb\"\u003e\n \u003ctitle\u003e0BS907554C Haldex Control Unit 4th Gen AWD | Used OEM | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .info-section p, .info-section ul, .info-section li { color: #ffffff; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .info-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .info-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #1a1a1a; padding: 10px; border-radius: 3px; color: #ffffff; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .spec-label { border-bottom: none; border-radius: 3px 3px 0 0; }\n .spec-value { border-radius: 0 0 3px 3px; margin-bottom: 10px; }\n }\n .btn-contact { display: inline-block; background-color: #000000; color: #E3FC02 !important; padding: 14px 36px; text-decoration: none; border-radius: 5px; font-weight: 700; font-size: 1em; margin-top: 20px; transition: all 0.3s; border: 2px solid #E3FC02; }\n .btn-contact:hover { background-color: #E3FC02; color: #000000 !important; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; column-count: 2; column-gap: 20px; }\n .fault-codes li { padding: 5px 0; font-size: 0.9em; color: #ffffff; break-inside: avoid; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n @media (max-width: 768px) { .fault-codes ul { column-count: 1; } }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed Haldex Control Unit 0BS907554C – 4th Generation AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0BS907554C\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.1em; color: #ffffff;\"\u003eOriginal Continental – Rear Differential Control Module for VAG AWD Vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used – Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental (Original OEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003e✓ Tested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Each control unit is bench-tested prior to dispatch to verify full functionality. Used condition, fully operational and ready for direct installation into compatible AWD vehicles.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BS907554C  •  0BS598554C  •  HAP542  •  5WP33524-04  •  0BS 907 554 C\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\" style=\"margin-top: 10px;\"\u003e\n \u003cstrong\u003eAlso Compatible With:\u003c\/strong\u003e\n \u003cp\u003e0BS907554  •  0BS907554A  •  0BS907554B  •  0BS598554  •  0BS598554A  •  0BS598554B  •  5WP33524  •  5WP33524-01  •  5WP33524-02  •  5WP33524-03\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003e⚠️ Always Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the part number printed directly on your existing Haldex control unit and confirm it corresponds to one of the reference numbers listed above. If you are unsure about compatibility, contact us – we are happy to assist.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (ECU)\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHW H43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSW 4016\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVAG Group – VW, Audi, Škoda, SEAT\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eUsed – Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eWarranty Period:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e12 Months\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine used original Continental Haldex 4th generation control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0BS907554C\u003c\/strong\u003e. It functions as the electronic management module of the rear AWD coupling system, responsible for activating and regulating the rear differential clutch pack in response to traction demands and driving conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eMonitors rotational speed differences between front and rear axles\u003c\/li\u003e\n \u003cli\u003eControls the hydraulic pump pressure for rear differential clutch engagement\u003c\/li\u003e\n \u003cli\u003eActivates rear-wheel drive distribution automatically when traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and engine management modules\u003c\/li\u003e\n \u003cli\u003eManages the N373 Haldex control valve for clutch pressure regulation\u003c\/li\u003e\n \u003cli\u003eProtects the coupling system from thermal overload\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eℹ️ Coding \u0026amp; Programming Note\u003c\/strong\u003e\n After installation, the control unit may require coding to the vehicle using VCDS or compatible VAG diagnostic equipment. Online coding support is included with your purchase – contact us at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"3b52555d547b585a4948165e584e15585456\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eThe 0BS907554C is compatible with the following VAG group vehicles equipped with Haldex 4th generation AWD systems. Always verify the part number on your existing unit:\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003ePassat 4Motion\u003c\/li\u003e\n \u003cli\u003eTiguan 4Motion\u003c\/li\u003e\n \u003cli\u003eSharan 4Motion\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eQ3 Quattro\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eOctavia 4x4\u003c\/li\u003e\n \u003cli\u003eSuperb 4x4\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAlhambra 4Drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003e✓ Not Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this unit fits your vehicle, send us your VIN number or the part number from your existing unit. We will confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Fault Codes\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eA defective Haldex 4th gen control unit commonly triggers one or more of the following fault codes:\u003c\/p\u003e\n\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e – AWD Control Module (J492): No Communications\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e – Haldex Clutch Pump: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e – Haldex Control Valve N373: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01316\u003c\/code\u003e – ABS Control Module: Check DTC Memory – Intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e – Control Module: Faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e – EEPROM: Memory Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e – Control Module: Memory \/ Checksum Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e131599\u003c\/code\u003e (U0114) – AWD Control Unit: No Communication\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Diagnostic Tip\u003c\/strong\u003e\n A professional VAG-compatible scan tool (VCDS, ODIS, VCP) is required to read AWD module faults. Standard OBD2 readers typically cannot communicate with the Haldex AWD controller. Always scan module 22 directly for accurate fault diagnosis.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Calibration\u003c\/h2\u003e\n\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eLocate the Haldex control unit mounted on the rear differential \/ rear axle assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the electrical connector and remove all mounting fasteners\u003c\/li\u003e\n \u003cli\u003eCarefully remove the old control unit from the coupling housing\u003c\/li\u003e\n \u003cli\u003ePosition the replacement unit and secure all mounting points\u003c\/li\u003e\n \u003cli\u003eReconnect all electrical connectors and verify secure fitment\u003c\/li\u003e\n \u003cli\u003eConnect a VAG-compatible diagnostic tool and code the unit to the vehicle\u003c\/li\u003e\n \u003cli\u003eClear all stored fault codes and perform a test drive\u003c\/li\u003e\n \u003cli\u003eConfirm AWD engagement using the diagnostic tool after the test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"success-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e✓ Online Technical Support Included\u003c\/strong\u003e\n If the module requires coding assistance after installation, our technical team is available to help. Reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"3b52555d547b585a4948165e584e15585456\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eRecommended Maintenance at Time of Installation\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex control valve N373 at the same time as fitting the new control unit\u003c\/li\u003e\n \u003cli\u003eReplace Haldex oil when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eInspect the wiring connector and harness for corrosion or damage\u003c\/li\u003e\n \u003cli\u003eCheck AWD system fuses dedicated to the Haldex circuit\u003c\/li\u003e\n \u003cli\u003eClear all stored diagnostic fault codes after installation and perform a test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eThe control unit is located near the rear axle in an exposed position. Over time, moisture can penetrate the housing, corroding the internal circuit board and causing communication failures or complete loss of AWD function.\u003c\/p\u003e\n\n \u003ch3\u003e2. Power Supply Faults\u003c\/h3\u003e\n \u003cp\u003eThe Gen 4 Haldex system relies on dedicated 12V supply lines protected by fuses. Blown fuses, corroded pins, or damaged wiring at the rear connector are a common cause of total AWD loss, often without an obvious dashboard warning.\u003c\/p\u003e\n\n \u003ch3\u003e3. Thermal Stress\u003c\/h3\u003e\n \u003cp\u003eExtended high-load driving or repeated AWD engagement can generate excessive heat that degrades solder joints and internal electronic components within the control unit over time.\u003c\/p\u003e\n\n \u003ch3\u003e4. Neglected Haldex Oil\u003c\/h3\u003e\n \u003cp\u003eOld or contaminated Haldex fluid leaves deposits that clog internal hydraulic passages and accelerate wear on the pump and N373 valve, leading to incorrect control unit readings and eventual AWD failure.\u003c\/p\u003e\n\n \u003cdiv class=\"warning-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e⚠️ Recommended Maintenance Intervals\u003c\/strong\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex oil every 40,000 – 60,000 km\u003c\/li\u003e\n \u003cli\u003eInspect and replace N373 control valve at each oil service if worn\u003c\/li\u003e\n \u003cli\u003eInspect rear wiring harness and connector block annually\u003c\/li\u003e\n \u003cli\u003eScan AWD module 22 if any dashboard warning lights appear\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n\n \u003cp\u003e\u003cstrong style=\"color: #E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit has been fully tested and is covered by a 12-month warranty against functional defects under normal operating conditions.\u003c\/p\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Coverage Includes:\u003c\/strong\u003e\u003c\/p\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eElectronic control unit malfunctions\u003c\/li\u003e\n \u003cli\u003eCommunication failures with AWD, ABS or ESP modules\u003c\/li\u003e\n \u003cli\u003eN373 valve control circuit defects\u003c\/li\u003e\n \u003cli\u003eInternal calibration memory errors\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Exclusions:\u003c\/strong\u003e Damage resulting from incorrect installation, incompatible vehicle fitment, external electrical faults, or physical damage during handling.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Recommendation: Replace Haldex Oil \u0026amp; N373 Valve When Fitting This Unit\u003c\/strong\u003e\n Fresh Haldex fluid and a new N373 control valve protect the used control unit and ensure correct AWD operation. \u003ca href=\"https:\/\/cars-ecu.com\/products\/original-oil-for-haldex-2-5-gen\" style=\"color: #E3FC02;\"\u003eOrder Haldex Oil →\u003c\/a\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\" style=\"text-align: center;\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 10px;\"\u003eOur technical team is ready to assist with compatibility checks, installation guidance, and coding support.\u003c\/p\u003e\n \u003cbr\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only – the actual unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping available (if your country is not listed at checkout, contact us for personal processing)\u003c\/li\u003e\n \u003cli\u003eIt is recommended to replace Haldex oil and N373 valve when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eOnline support is included in case the module requires coding after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n \u003cp\u003e© Cars-ECU.com | Used OEM Automotive Electronics | Haldex AWD Control Units\u003c\/p\u003e\n \u003c\/footer\u003e\n\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":52475613872461,"sku":null,"price":289.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"haldex-control-unit-0br907554a","title":"0BR907554A Haldex control unit Used","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Used 0BR907554A Haldex Control Unit 4th Gen. Tested \u0026amp; functional, 12-month warranty. Continental OEM. Fits VW Golf, Tiguan, Passat, Sharan, Audi A3, S3, TT, Skoda Octavia, Superb, Yeti, Seat AWD.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0BR907554A, 0BR598554A, Haldex control unit, 4th generation Haldex, AWD control unit, Continental, VW Golf, Tiguan, Audi A3, S3, TT, Skoda Octavia\"\u003e\n \u003ctitle\u003e0BR907554A Haldex Control Unit 4th Gen AWD | Used OEM | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .info-section p, .info-section ul, .info-section li { color: #ffffff; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .info-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .info-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #1a1a1a; padding: 10px; border-radius: 3px; color: #ffffff; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .spec-label { border-bottom: none; border-radius: 3px 3px 0 0; }\n .spec-value { border-radius: 0 0 3px 3px; margin-bottom: 10px; }\n }\n .btn-contact { display: inline-block; background-color: #000000; color: #E3FC02 !important; padding: 14px 36px; text-decoration: none; border-radius: 5px; font-weight: 700; font-size: 1em; margin-top: 20px; transition: all 0.3s; border: 2px solid #E3FC02; }\n .btn-contact:hover { background-color: #E3FC02; color: #000000 !important; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; column-count: 2; column-gap: 20px; }\n .fault-codes li { padding: 5px 0; font-size: 0.9em; color: #ffffff; break-inside: avoid; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n @media (max-width: 768px) { .fault-codes ul { column-count: 1; } }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed Haldex Control Unit 0BR907554A – 4th Generation AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0BR907554A\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.1em; color: #ffffff;\"\u003eOriginal Continental – Rear Differential Control Module for VAG AWD Vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used – Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental (Original OEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003e✓ Tested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Each control unit is bench-tested prior to dispatch to verify full functionality. Used condition, fully operational and ready for direct installation into compatible AWD vehicles.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0BR907554A  •  0BR598554A  •  HAP542  •  5WP33523-02  •  0BR 907 554 A\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\" style=\"margin-top: 10px;\"\u003e\n \u003cstrong\u003eAlso Compatible With:\u003c\/strong\u003e\n \u003cp\u003e0BR907554  •  0BR598554\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003e⚠️ Always Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the part number printed directly on your existing Haldex control unit and confirm it corresponds to one of the reference numbers listed above. If you are unsure about compatibility, contact us – we are happy to assist.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (ECU)\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHW H43\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSW 3016\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVAG Group – VW, Audi, Škoda, SEAT\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eUsed – Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eWarranty Period:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e12 Months\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine used original Continental Haldex 4th generation control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0BR907554A\u003c\/strong\u003e. It functions as the electronic management module of the rear AWD coupling system, responsible for activating and regulating the rear differential clutch pack in response to traction demands and driving conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eMonitors rotational speed differences between front and rear axles\u003c\/li\u003e\n \u003cli\u003eControls the hydraulic pump pressure for rear differential clutch engagement\u003c\/li\u003e\n \u003cli\u003eActivates rear-wheel drive distribution automatically when traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and engine management modules\u003c\/li\u003e\n \u003cli\u003eManages the N373 Haldex control valve for clutch pressure regulation\u003c\/li\u003e\n \u003cli\u003eProtects the coupling system from thermal overload\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eℹ️ Coding \u0026amp; Programming Note\u003c\/strong\u003e\n After installation, the control unit may require coding to the vehicle using VCDS or compatible VAG diagnostic equipment. Online coding support is included with your purchase – contact us at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"f29b9c949db291938081df979187dc919d9f\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eThe 0BR907554A is compatible with the following VAG group vehicles equipped with Haldex 4th generation AWD systems. Always verify the part number on your existing unit:\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eGolf 4Motion\u003c\/li\u003e\n \u003cli\u003eTiguan 4Motion\u003c\/li\u003e\n \u003cli\u003ePassat 4Motion\u003c\/li\u003e\n \u003cli\u003eSharan 4Motion\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eA3 Quattro\u003c\/li\u003e\n \u003cli\u003eS3 Quattro\u003c\/li\u003e\n \u003cli\u003eTT Quattro\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eOctavia 4x4\u003c\/li\u003e\n \u003cli\u003eSuperb 4x4\u003c\/li\u003e\n \u003cli\u003eYeti 4x4\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAltea 4Drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003e✓ Not Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this unit fits your vehicle, send us your VIN number or the part number from your existing unit. We will confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Fault Codes\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eA defective Haldex 4th gen control unit commonly triggers one or more of the following fault codes:\u003c\/p\u003e\n\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e – AWD Control Module (J492): No Communications\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e – Haldex Clutch Pump: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e – Haldex Control Valve N373: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01316\u003c\/code\u003e – ABS Control Module: Check DTC Memory – Intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e – Control Module: Faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e – EEPROM: Memory Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e – Control Module: Memory \/ Checksum Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e131599\u003c\/code\u003e (U0114) – AWD Control Unit: No Communication\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Diagnostic Tip\u003c\/strong\u003e\n A professional VAG-compatible scan tool (VCDS, ODIS, VCP) is required to read AWD module faults. Standard OBD2 readers typically cannot communicate with the Haldex AWD controller. Always scan module 22 directly for accurate fault diagnosis.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Calibration\u003c\/h2\u003e\n\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eLocate the Haldex control unit mounted on the rear differential \/ rear axle assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the electrical connector and remove all mounting fasteners\u003c\/li\u003e\n \u003cli\u003eCarefully remove the old control unit from the coupling housing\u003c\/li\u003e\n \u003cli\u003ePosition the replacement unit and secure all mounting points\u003c\/li\u003e\n \u003cli\u003eReconnect all electrical connectors and verify secure fitment\u003c\/li\u003e\n \u003cli\u003eConnect a VAG-compatible diagnostic tool and code the unit to the vehicle\u003c\/li\u003e\n \u003cli\u003eClear all stored fault codes and perform a test drive\u003c\/li\u003e\n \u003cli\u003eConfirm AWD engagement using the diagnostic tool after the test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"success-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e✓ Online Technical Support Included\u003c\/strong\u003e\n If the module requires coding assistance after installation, our technical team is available to help. Reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"f29b9c949db291938081df979187dc919d9f\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eRecommended Maintenance at Time of Installation\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex control valve N373 at the same time as fitting the new control unit\u003c\/li\u003e\n \u003cli\u003eReplace Haldex oil when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eInspect the wiring connector and harness for corrosion or damage\u003c\/li\u003e\n \u003cli\u003eCheck AWD system fuses dedicated to the Haldex circuit\u003c\/li\u003e\n \u003cli\u003eClear all stored diagnostic fault codes after installation and perform a test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eThe control unit is located near the rear axle in an exposed position. Over time, moisture can penetrate the housing, corroding the internal circuit board and causing communication failures or complete loss of AWD function.\u003c\/p\u003e\n\n \u003ch3\u003e2. Power Supply Faults\u003c\/h3\u003e\n \u003cp\u003eThe Gen 4 Haldex system relies on dedicated 12V supply lines protected by fuses. Blown fuses, corroded pins, or damaged wiring at the rear connector are a common cause of total AWD loss, often without an obvious dashboard warning.\u003c\/p\u003e\n\n \u003ch3\u003e3. Thermal Stress\u003c\/h3\u003e\n \u003cp\u003eExtended high-load driving or repeated AWD engagement can generate excessive heat that degrades solder joints and internal electronic components within the control unit over time.\u003c\/p\u003e\n\n \u003ch3\u003e4. Neglected Haldex Oil\u003c\/h3\u003e\n \u003cp\u003eOld or contaminated Haldex fluid leaves deposits that clog internal hydraulic passages and accelerate wear on the pump and N373 valve, leading to incorrect control unit readings and eventual AWD failure.\u003c\/p\u003e\n\n \u003cdiv class=\"warning-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e⚠️ Recommended Maintenance Intervals\u003c\/strong\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex oil every 40,000 – 60,000 km\u003c\/li\u003e\n \u003cli\u003eInspect and replace N373 control valve at each oil service if worn\u003c\/li\u003e\n \u003cli\u003eInspect rear wiring harness and connector block annually\u003c\/li\u003e\n \u003cli\u003eScan AWD module 22 if any dashboard warning lights appear\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n\n \u003cp\u003e\u003cstrong style=\"color: #E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit has been fully tested and is covered by a 12-month warranty against functional defects under normal operating conditions.\u003c\/p\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Coverage Includes:\u003c\/strong\u003e\u003c\/p\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eElectronic control unit malfunctions\u003c\/li\u003e\n \u003cli\u003eCommunication failures with AWD, ABS or ESP modules\u003c\/li\u003e\n \u003cli\u003eN373 valve control circuit defects\u003c\/li\u003e\n \u003cli\u003eInternal calibration memory errors\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Exclusions:\u003c\/strong\u003e Damage resulting from incorrect installation, incompatible vehicle fitment, external electrical faults, or physical damage during handling.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Recommendation: Replace Haldex Oil \u0026amp; N373 Valve When Fitting This Unit\u003c\/strong\u003e\n Fresh Haldex fluid and a new N373 control valve protect the used control unit and ensure correct AWD operation. \u003ca href=\"https:\/\/cars-ecu.com\/products\/original-oil-for-haldex-2-5-gen\" style=\"color: #E3FC02;\"\u003eOrder Haldex Oil →\u003c\/a\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\" style=\"text-align: center;\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 10px;\"\u003eOur technical team is ready to assist with compatibility checks, installation guidance, and coding support.\u003c\/p\u003e\n \u003cbr\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only – the actual unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping available (if your country is not listed at checkout, contact us for personal processing)\u003c\/li\u003e\n \u003cli\u003eIt is recommended to replace Haldex oil and N373 valve when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eOnline support is included in case the module requires coding after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n \u003cp\u003e© Cars-ECU.com | Used OEM Automotive Electronics | Haldex AWD Control Units\u003c\/p\u003e\n \u003c\/footer\u003e\n\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":52475651522893,"sku":null,"price":289.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"haldex-control-unit-0ay907554b-refurbished","title":"0AY907554B Haldex control unit Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished 0AY907554B Haldex Control Unit 4th Gen. Fully restored, tested \u0026amp; functional, 12-month warranty. Siemens original. Fits VW Tiguan, Sharan, Audi Q3, Skoda Octavia, Superb, Seat Alhambra AWD.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0AY907554B, Haldex control unit, 4th generation Haldex, AWD control unit, rear differential module, Siemens, VW Tiguan, Sharan, Audi Q3, Skoda Octavia\"\u003e\n \u003ctitle\u003e0AY907554B Haldex Control Unit 4th Gen AWD | Refurbished | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .info-section p, .info-section ul, .info-section li { color: #ffffff; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .info-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .info-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #1a1a1a; padding: 10px; border-radius: 3px; color: #ffffff; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .spec-label { border-bottom: none; border-radius: 3px 3px 0 0; }\n .spec-value { border-radius: 0 0 3px 3px; margin-bottom: 10px; }\n }\n .btn-contact { display: inline-block; background-color: #000000; color: #E3FC02 !important; padding: 14px 36px; text-decoration: none; border-radius: 5px; font-weight: 700; font-size: 1em; margin-top: 20px; transition: all 0.3s; border: 2px solid #E3FC02; }\n .btn-contact:hover { background-color: #E3FC02; color: #000000 !important; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; column-count: 2; column-gap: 20px; }\n .fault-codes li { padding: 5px 0; font-size: 0.9em; color: #ffffff; break-inside: avoid; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n @media (max-width: 768px) { .fault-codes ul { column-count: 1; } }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished Haldex Control Unit 0AY907554B – 4th Generation AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0AY907554B\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.1em; color: #ffffff;\"\u003eOriginal Siemens – Rear Differential Control Module for VAG AWD Vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished – Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Siemens (Original OEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003e✓ Refurbished – New Silicone Sealing Applied\u003c\/strong\u003e\n Each unit is fully restored, resealed with new silicone for durability comparable to a new module, and bench-tested prior to dispatch. Fully operational and ready for direct installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCompatible OEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554B  •  HAP542  •  5WP33514-03  •  0AY 907 554 B\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\" style=\"margin-top: 10px;\"\u003e\n \u003cstrong\u003eAlso Compatible With:\u003c\/strong\u003e\n \u003cp\u003e0AY907554  •  0AY907554A  •  0AY907554B\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003e⚠️ Always Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the part number printed directly on your existing Haldex control unit and confirm it corresponds to one of the reference numbers listed above. If you are unsure about compatibility, contact us – we are happy to assist.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (ECU)\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHW H41\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSW 0039\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSiemens\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVAG Group – VW, Audi, Škoda, SEAT\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRefurbished – New Silicone, Tested \u0026amp; Verified\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eWarranty Period:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e12 Months\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a refurbished original Siemens Haldex 4th generation control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0AY907554B\u003c\/strong\u003e. The unit has been fully restored, resealed with new silicone, and bench-tested to ensure functionality equivalent to a new module. It manages the rear AWD coupling system, controlling the engagement and pressure of the rear differential clutch pack based on driving conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eMonitors rotational speed differences between front and rear axles\u003c\/li\u003e\n \u003cli\u003eControls the hydraulic pump pressure for rear differential clutch engagement\u003c\/li\u003e\n \u003cli\u003eActivates rear-wheel drive distribution automatically when traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and engine management modules\u003c\/li\u003e\n \u003cli\u003eManages the N373 Haldex control valve for clutch pressure regulation\u003c\/li\u003e\n \u003cli\u003eProtects the coupling system from thermal overload\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eℹ️ Coding \u0026amp; Programming Note\u003c\/strong\u003e\n After installation, the control unit may require coding to the vehicle using VCDS or compatible VAG diagnostic equipment. Online coding support is included with your purchase – contact us at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"e881868e87a88b899a9bc58d8b9dc68b8785\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eThe 0AY907554B is compatible with the following VAG group vehicles equipped with Haldex 4th generation AWD systems. Always verify the part number on your existing unit:\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eTiguan 4Motion\u003c\/li\u003e\n \u003cli\u003eSharan 4Motion\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eQ3 Quattro\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eSuperb 4x4\u003c\/li\u003e\n \u003cli\u003eOctavia 4x4\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAlhambra 4Drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003e✓ Not Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this unit fits your vehicle, send us your VIN number or the part number from your existing unit. We will confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Fault Codes\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eA defective Haldex 4th gen control unit commonly triggers one or more of the following fault codes:\u003c\/p\u003e\n\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e – AWD Control Module (J492): No Communications\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e – Haldex Clutch Pump: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e – Haldex Control Valve N373: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01316\u003c\/code\u003e – ABS Control Module: Check DTC Memory – Intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e – Control Module: Faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e – EEPROM: Memory Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e – Control Module: Memory \/ Checksum Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e131599\u003c\/code\u003e (U0114) – AWD Control Unit: No Communication\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Diagnostic Tip\u003c\/strong\u003e\n A professional VAG-compatible scan tool (VCDS, ODIS, VCP) is required to read AWD module faults. Standard OBD2 readers typically cannot communicate with the Haldex AWD controller. Always scan module 22 directly for accurate fault diagnosis.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Calibration\u003c\/h2\u003e\n\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eLocate the Haldex control unit mounted on the rear differential \/ rear axle assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the electrical connector and remove all mounting fasteners\u003c\/li\u003e\n \u003cli\u003eCarefully remove the old control unit from the coupling housing\u003c\/li\u003e\n \u003cli\u003ePosition the replacement unit and secure all mounting points\u003c\/li\u003e\n \u003cli\u003eReconnect all electrical connectors and verify secure fitment\u003c\/li\u003e\n \u003cli\u003eConnect a VAG-compatible diagnostic tool and code the unit to the vehicle\u003c\/li\u003e\n \u003cli\u003eClear all stored fault codes and perform a test drive\u003c\/li\u003e\n \u003cli\u003eConfirm AWD engagement using the diagnostic tool after the test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"success-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e✓ Online Technical Support Included\u003c\/strong\u003e\n If the module requires coding assistance after installation, our technical team is available to help. Reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"e881868e87a88b899a9bc58d8b9dc68b8785\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eRecommended Maintenance at Time of Installation\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex control valve N373 at the same time as fitting the new control unit\u003c\/li\u003e\n \u003cli\u003eReplace Haldex oil when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eInspect the wiring connector and harness for corrosion or damage\u003c\/li\u003e\n \u003cli\u003eCheck AWD system fuses dedicated to the Haldex circuit\u003c\/li\u003e\n \u003cli\u003eClear all stored diagnostic fault codes after installation and perform a test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eThe control unit is located near the rear axle in an exposed position. Over time, moisture can penetrate the housing, corroding the internal circuit board and causing communication failures or complete loss of AWD function.\u003c\/p\u003e\n\n \u003ch3\u003e2. Power Supply Faults\u003c\/h3\u003e\n \u003cp\u003eThe Gen 4 Haldex system relies on dedicated 12V supply lines protected by fuses. Blown fuses, corroded pins, or damaged wiring at the rear connector are a common cause of total AWD loss, often without an obvious dashboard warning.\u003c\/p\u003e\n\n \u003ch3\u003e3. Thermal Stress\u003c\/h3\u003e\n \u003cp\u003eExtended high-load driving or repeated AWD engagement can generate excessive heat that degrades solder joints and internal electronic components within the control unit over time.\u003c\/p\u003e\n\n \u003ch3\u003e4. Neglected Haldex Oil\u003c\/h3\u003e\n \u003cp\u003eOld or contaminated Haldex fluid leaves deposits that clog internal hydraulic passages and accelerate wear on the pump and N373 valve, leading to incorrect control unit readings and eventual AWD failure.\u003c\/p\u003e\n\n \u003cdiv class=\"warning-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e⚠️ Recommended Maintenance Intervals\u003c\/strong\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex oil every 40,000 – 60,000 km\u003c\/li\u003e\n \u003cli\u003eInspect and replace N373 control valve at each oil service if worn\u003c\/li\u003e\n \u003cli\u003eInspect rear wiring harness and connector block annually\u003c\/li\u003e\n \u003cli\u003eScan AWD module 22 if any dashboard warning lights appear\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n\n \u003cp\u003e\u003cstrong style=\"color: #E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been fully tested and is covered by a 12-month warranty against functional defects under normal operating conditions.\u003c\/p\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Coverage Includes:\u003c\/strong\u003e\u003c\/p\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eElectronic control unit malfunctions\u003c\/li\u003e\n \u003cli\u003eCommunication failures with AWD, ABS or ESP modules\u003c\/li\u003e\n \u003cli\u003eN373 valve control circuit defects\u003c\/li\u003e\n \u003cli\u003eInternal calibration memory errors\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Exclusions:\u003c\/strong\u003e Damage resulting from incorrect installation, incompatible vehicle fitment, external electrical faults, or physical damage during handling.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Recommendation: Replace Haldex Oil \u0026amp; N373 Valve When Fitting This Unit\u003c\/strong\u003e\n Fresh Haldex fluid and a new N373 control valve protect the refurbished control unit and ensure correct AWD operation. \u003ca href=\"https:\/\/cars-ecu.com\/products\/original-oil-for-haldex-2-5-gen\" style=\"color: #E3FC02;\"\u003eOrder Haldex Oil →\u003c\/a\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\" style=\"text-align: center;\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 10px;\"\u003eOur technical team is ready to assist with compatibility checks, installation guidance, and coding support.\u003c\/p\u003e\n \u003cbr\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only – the actual unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping available (if your country is not listed at checkout, contact us for personal processing)\u003c\/li\u003e\n \u003cli\u003eIt is recommended to replace Haldex oil and N373 valve when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eOnline support is included in case the module requires coding after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n \u003cp\u003e© Cars-ECU.com | Used \u0026amp; Refurbished OEM Automotive Electronics | Haldex AWD Control Units\u003c\/p\u003e\n \u003c\/footer\u003e\n\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":52792518443341,"sku":null,"price":329.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_6f237bf8-5b60-4def-98ad-049e0f03750d.jpg?v=1741337565"},{"product_id":"haldex-control-unit-0ay907554a-refurbished","title":"0AY907554A Haldex control unit Refurbished","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished 0AY907554A Haldex Control Unit 4th Gen. Fully restored, tested \u0026amp; functional, 12-month warranty. Siemens original. Fits VW Tiguan, Sharan, Audi Q3, Skoda Octavia, Superb, Seat Alhambra AWD.\"\u003e\n \u003cmeta name=\"keywords\" content=\"0AY907554A, Haldex control unit, 4th generation Haldex, AWD control unit, rear differential module, Siemens, VW Tiguan, Sharan, Audi Q3, Skoda Octavia\"\u003e\n \u003ctitle\u003e0AY907554A Haldex Control Unit 4th Gen AWD | Refurbished | Cars-ECU.com\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .info-section p, .info-section ul, .info-section li { color: #ffffff; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .info-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .info-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #1a1a1a; padding: 10px; border-radius: 3px; color: #ffffff; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .spec-label { border-bottom: none; border-radius: 3px 3px 0 0; }\n .spec-value { border-radius: 0 0 3px 3px; margin-bottom: 10px; }\n }\n .btn-contact { display: inline-block; background-color: #000000; color: #E3FC02 !important; padding: 14px 36px; text-decoration: none; border-radius: 5px; font-weight: 700; font-size: 1em; margin-top: 20px; transition: all 0.3s; border: 2px solid #E3FC02; }\n .btn-contact:hover { background-color: #E3FC02; color: #000000 !important; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; column-count: 2; column-gap: 20px; }\n .fault-codes li { padding: 5px 0; font-size: 0.9em; color: #ffffff; break-inside: avoid; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n @media (max-width: 768px) { .fault-codes ul { column-count: 1; } }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished Haldex Control Unit 0AY907554A – 4th Generation AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 0AY907554A\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.1em; color: #ffffff;\"\u003eOriginal Siemens – Rear Differential Control Module for VAG AWD Vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished – Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Siemens (Original OEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003e✓ Refurbished – New Silicone Sealing Applied\u003c\/strong\u003e\n Each unit is fully restored, resealed with new silicone for durability comparable to a new module, and bench-tested prior to dispatch. Fully operational and ready for direct installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCompatible OEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e0AY907554A  •  HAP542  •  5WP33514-02  •  0AY 907 554 A\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\" style=\"margin-top: 10px;\"\u003e\n \u003cstrong\u003eAlso Compatible With:\u003c\/strong\u003e\n \u003cp\u003e0AY907554\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003e⚠️ Always Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the part number printed directly on your existing Haldex control unit and confirm it corresponds to one of the reference numbers listed above. If you are unsure about compatibility, contact us – we are happy to assist.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (ECU)\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHW H41\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSW 0036\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eSiemens\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVAG Group – VW, Audi, Škoda, SEAT\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRefurbished – New Silicone, Tested \u0026amp; Verified\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eWarranty Period:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e12 Months\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a refurbished original Siemens Haldex 4th generation control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e0AY907554A\u003c\/strong\u003e. The unit has been fully restored, resealed with new silicone, and bench-tested to ensure functionality equivalent to a new module. It manages the rear AWD coupling system, controlling the engagement and pressure of the rear differential clutch pack based on driving conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eMonitors rotational speed differences between front and rear axles\u003c\/li\u003e\n \u003cli\u003eControls the hydraulic pump pressure for rear differential clutch engagement\u003c\/li\u003e\n \u003cli\u003eActivates rear-wheel drive distribution automatically when traction is required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS, ESP and engine management modules\u003c\/li\u003e\n \u003cli\u003eManages the N373 Haldex control valve for clutch pressure regulation\u003c\/li\u003e\n \u003cli\u003eProtects the coupling system from thermal overload\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eℹ️ Coding \u0026amp; Programming Note\u003c\/strong\u003e\n After installation, the control unit may require coding to the vehicle using VCDS or compatible VAG diagnostic equipment. Online coding support is included with your purchase – contact us at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"e881868e87a88b899a9bc58d8b9dc68b8785\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eThe 0AY907554A is compatible with the following VAG group vehicles equipped with Haldex 4th generation AWD systems. Always verify the part number on your existing unit:\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eTiguan 4Motion\u003c\/li\u003e\n \u003cli\u003eSharan 4Motion\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eAudi\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eQ3 Quattro\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eŠkoda\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eSuperb 4x4\u003c\/li\u003e\n \u003cli\u003eOctavia 4x4\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eSEAT\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eAlhambra 4Drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003e✓ Not Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this unit fits your vehicle, send us your VIN number or the part number from your existing unit. We will confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Fault Codes\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 15px;\"\u003eA defective Haldex 4th gen control unit commonly triggers one or more of the following fault codes:\u003c\/p\u003e\n\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003e01324\u003c\/code\u003e – AWD Control Module (J492): No Communications\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e – Haldex Clutch Pump: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e – Haldex Control Valve N373: Electrical Fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e01316\u003c\/code\u003e – ABS Control Module: Check DTC Memory – Intermittent\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e – Control Module: Faulty\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e16347\u003c\/code\u003e – EEPROM: Memory Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e65535\u003c\/code\u003e – Control Module: Memory \/ Checksum Error\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e131599\u003c\/code\u003e (U0114) – AWD Control Unit: No Communication\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Diagnostic Tip\u003c\/strong\u003e\n A professional VAG-compatible scan tool (VCDS, ODIS, VCP) is required to read AWD module faults. Standard OBD2 readers typically cannot communicate with the Haldex AWD controller. Always scan module 22 directly for accurate fault diagnosis.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Calibration\u003c\/h2\u003e\n\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eLocate the Haldex control unit mounted on the rear differential \/ rear axle assembly\u003c\/li\u003e\n \u003cli\u003eDisconnect the electrical connector and remove all mounting fasteners\u003c\/li\u003e\n \u003cli\u003eCarefully remove the old control unit from the coupling housing\u003c\/li\u003e\n \u003cli\u003ePosition the replacement unit and secure all mounting points\u003c\/li\u003e\n \u003cli\u003eReconnect all electrical connectors and verify secure fitment\u003c\/li\u003e\n \u003cli\u003eConnect a VAG-compatible diagnostic tool and code the unit to the vehicle\u003c\/li\u003e\n \u003cli\u003eClear all stored fault codes and perform a test drive\u003c\/li\u003e\n \u003cli\u003eConfirm AWD engagement using the diagnostic tool after the test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"success-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e✓ Online Technical Support Included\u003c\/strong\u003e\n If the module requires coding assistance after installation, our technical team is available to help. Reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"e881868e87a88b899a9bc58d8b9dc68b8785\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eRecommended Maintenance at Time of Installation\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex control valve N373 at the same time as fitting the new control unit\u003c\/li\u003e\n \u003cli\u003eReplace Haldex oil when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eInspect the wiring connector and harness for corrosion or damage\u003c\/li\u003e\n \u003cli\u003eCheck AWD system fuses dedicated to the Haldex circuit\u003c\/li\u003e\n \u003cli\u003eClear all stored diagnostic fault codes after installation and perform a test drive\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eThe control unit is located near the rear axle in an exposed position. Over time, moisture can penetrate the housing, corroding the internal circuit board and causing communication failures or complete loss of AWD function.\u003c\/p\u003e\n\n \u003ch3\u003e2. Power Supply Faults\u003c\/h3\u003e\n \u003cp\u003eThe Gen 4 Haldex system relies on dedicated 12V supply lines protected by fuses. Blown fuses, corroded pins, or damaged wiring at the rear connector are a common cause of total AWD loss, often without an obvious dashboard warning.\u003c\/p\u003e\n\n \u003ch3\u003e3. Thermal Stress\u003c\/h3\u003e\n \u003cp\u003eExtended high-load driving or repeated AWD engagement can generate excessive heat that degrades solder joints and internal electronic components within the control unit over time.\u003c\/p\u003e\n\n \u003ch3\u003e4. Neglected Haldex Oil\u003c\/h3\u003e\n \u003cp\u003eOld or contaminated Haldex fluid leaves deposits that clog internal hydraulic passages and accelerate wear on the pump and N373 valve, leading to incorrect control unit readings and eventual AWD failure.\u003c\/p\u003e\n\n \u003cdiv class=\"warning-box\" style=\"margin-top: 20px;\"\u003e\n \u003cstrong\u003e⚠️ Recommended Maintenance Intervals\u003c\/strong\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eReplace Haldex oil every 40,000 – 60,000 km\u003c\/li\u003e\n \u003cli\u003eInspect and replace N373 control valve at each oil service if worn\u003c\/li\u003e\n \u003cli\u003eInspect rear wiring harness and connector block annually\u003c\/li\u003e\n \u003cli\u003eScan AWD module 22 if any dashboard warning lights appear\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n\n \u003cp\u003e\u003cstrong style=\"color: #E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been fully tested and is covered by a 12-month warranty against functional defects under normal operating conditions.\u003c\/p\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Coverage Includes:\u003c\/strong\u003e\u003c\/p\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.8;\"\u003e\n \u003cli\u003eElectronic control unit malfunctions\u003c\/li\u003e\n \u003cli\u003eCommunication failures with AWD, ABS or ESP modules\u003c\/li\u003e\n \u003cli\u003eN373 valve control circuit defects\u003c\/li\u003e\n \u003cli\u003eInternal calibration memory errors\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cp style=\"margin-top: 15px;\"\u003e\u003cstrong style=\"color: #E3FC02;\"\u003eWarranty Exclusions:\u003c\/strong\u003e Damage resulting from incorrect installation, incompatible vehicle fitment, external electrical faults, or physical damage during handling.\u003c\/p\u003e\n\n \u003cdiv class=\"info-box\" style=\"margin-top: 15px;\"\u003e\n \u003cstrong\u003eℹ️ Recommendation: Replace Haldex Oil \u0026amp; N373 Valve When Fitting This Unit\u003c\/strong\u003e\n Fresh Haldex fluid and a new N373 control valve protect the refurbished control unit and ensure correct AWD operation. \u003ca href=\"https:\/\/cars-ecu.com\/products\/original-oil-for-haldex-2-5-gen\" style=\"color: #E3FC02;\"\u003eOrder Haldex Oil →\u003c\/a\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\" style=\"text-align: center;\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp style=\"margin-bottom: 10px;\"\u003eOur technical team is ready to assist with compatibility checks, installation guidance, and coding support.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003ePhotos are for illustrative purposes only – the actual unit may differ in appearance\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping available (if your country is not listed at checkout, contact us for personal processing)\u003c\/li\u003e\n \u003cli\u003eIt is recommended to replace Haldex oil and N373 valve when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eOnline support is included in case the module requires coding after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cfooter\u003e\n \u003cp\u003e© Cars-ECU.com | Used \u0026amp; Refurbished OEM Automotive Electronics | Haldex AWD Control Units\u003c\/p\u003e\n \u003c\/footer\u003e\n\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":52792565367117,"sku":null,"price":329.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_6f237bf8-5b60-4def-98ad-049e0f03750d.jpg?v=1741337565"},{"product_id":"09n907554c-haldex-control-unit-gen-4-new-borgwarner-oem","title":"09N907554C Haldex Control Unit Gen 4 New","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Brand new 09N907554C Haldex control unit for Gen 4 AWD. Original BorgWarner module for Volkswagen T5, Multivan and California with online support.\"\u003e\n \u003cmeta name=\"keywords\" content=\"09N907554C, Haldex control unit, HAP542, 5WP33526-05, 119840-02, SW 6010, HW H44, Gen 4 Haldex, BorgWarner, Transporter T5, Multivan, California AWD\"\u003e\n \u003ctitle\u003e09N907554C Haldex Control Unit Gen 4 | New OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n footer { text-align: center; padding: 20px; color: #b0b0b0; font-size: 0.9em; margin-top: 30px; border-top: 1px solid #E3FC02; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eNew Haldex Control Unit 09N907554C\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 09N907554C\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM original rear differential \/ Gen 4 Haldex AWD control module for Volkswagen T5 platform vehicles\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n New Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n BorgWarner\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33526-05\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 6010 \/ HW H44\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 24 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n This 100% brand-new original Haldex control unit is fully tested and prepared as a reliable OEM replacement for a faulty original Haldex controller. It is supplied with functionality warranty and online support in case coding or setup help is needed after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e09N907554C  •  09N 907 554 C  •  HAP542  •  5WP33526-05  •  119840-02  •  SW 6010  •  HW H44\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e09N907554  •  09N907554A  •  09N907554B  •  09N907554C\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your existing Haldex control unit and confirm it matches the references listed above. If you are unsure about compatibility, contact us and we will help verify fitment.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit (ECU \/ AWD Module)\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolkswagen T5, Multivan and California AWD with 4th Gen Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eBorgWarner\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33526-05\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e6010\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eH44\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eBorgWarner Part Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e119840-02\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eNew Tested \u0026amp; Verified Working\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine brand-new OEM Haldex control unit with part number \u003cstrong style=\"color: #E3FC02;\"\u003e09N907554C\u003c\/strong\u003e. It is a critical component of the fourth-generation Haldex all-wheel-drive system used in Volkswagen T5 platform vehicles, responsible for controlling rear differential clutch engagement and enabling correct torque transfer to the rear axle when traction is required.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Module Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls hydraulic activation of the Haldex coupling for rear-wheel engagement\u003c\/li\u003e\n \u003cli\u003eSupports proper AWD \/ 4x4 operation in Transporter T5, Multivan and California applications\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS \/ ESP and related drivetrain systems\u003c\/li\u003e\n \u003cli\u003eStores and reports diagnostic trouble codes when faults occur\u003c\/li\u003e\n \u003cli\u003eSupports traction and stability in low-grip road conditions\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n This module is intended as an OEM replacement for the original control unit. Coding or adaptation may be required after installation depending on the vehicle configuration, and online support is available if needed.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe 09N907554C is compatible with selected Volkswagen T5-series vehicles equipped with Gen 4 Haldex AWD. Always verify the exact part number on your existing module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolkswagen Transporter T5 AWD\u003c\/li\u003e\n \u003cli\u003eVolkswagen Multivan AWD\u003c\/li\u003e\n \u003cli\u003eVolkswagen California AWD\u003c\/li\u003e\n \u003cli\u003eSelected Volkswagen T5 platform vehicles with matching 09N907554C \/ 09N907554B \/ 09N907554A controller\u003c\/li\u003e\n \u003cli\u003eCompatible references: 09N598549, 09N598549A, 09N598549B, 09N598549C\u003c\/li\u003e\n \u003cli\u003eCompatible references: 09N598549, 09N598549A, 09N598549B, 09N598549C\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this control unit fits your vehicle, send us your VIN number or the OEM number from your existing module. We will help confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex control unit commonly causes the following issues:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003eLoss of AWD \/ 4x4 function or rear axle not engaging\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e Control module defective\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e Haldex clutch pump (V181) fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e Clutch control valve (N373) fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e AWD module not responding\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eN373\u003c\/code\u003e Haldex clutch control valve problem\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n If this module is being replaced, it is recommended to inspect the Haldex control valve N373, the Haldex pump and related system components. A proper diagnostic scan should be carried out before and after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eVerify the exact OEM part number on the original control unit\u003c\/li\u003e\n \u003cli\u003eDisconnect the battery and safely access the Haldex module on the rear differential\u003c\/li\u003e\n \u003cli\u003eRemove the old controller and inspect connector pins and housing for corrosion or moisture\u003c\/li\u003e\n \u003cli\u003eInstall the replacement ECU carefully and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes and confirm AWD module communication with suitable diagnostic equipment\u003c\/li\u003e\n \u003cli\u003eCode or adapt the module if required by the vehicle\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm correct AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"7b12151d143b181a0908561e180e55181416\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex control valve N373 or related pump components can overload the system and trigger repeated module-related diagnostic errors.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e24-Month Warranty:\u003c\/strong\u003e This new Haldex control unit has been tested for correct operation and is supplied with a 24-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, pump or valve faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003eImages are for illustrative purposes only\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eIt is recommended to replace the Haldex control valve N373 when replacing the control unit\u003c\/li\u003e\n \u003cli\u003eCoding or adaptation may be required after installation and online support is included\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n \u003c\/body\u003e","brand":"Borgwarner","offers":[{"title":"Default Title","offer_id":53774968815949,"sku":null,"price":599.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/169C9D19-3C9A-461E-A7A1-36312923A27D.jpg?v=1721201953"},{"product_id":"09n907554c-haldex-control-unit-n373-valve-seal-new-borgwarner-oem","title":"09N907554C Haldex Control Unit + N373 Valve + Seal New","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"New BorgWarner 09N907554C Haldex control unit for VW T5 AWD with new N373 valve and sealing. OEM Gen 4 unit, tested, 24-month warranty.\"\u003e\n \u003cmeta name=\"keywords\" content=\"09N907554C, Haldex control unit, BorgWarner, HAP542, 5WP33526-05, 119840-02, SW 6010, HW H44, N373 valve, sealing, Gen 4 Haldex, VW T5, Multivan, California AWD\"\u003e\n \u003ctitle\u003e09N907554C Haldex Control Unit + N373 Valve + Sealing | New BorgWarner OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eNew Haldex Control Unit 09N907554C with New N373 Valve and Sealing\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 09N907554C\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOEM BorgWarner Gen 4 Haldex AWD control unit set for Volkswagen T5 platform vehicles, supplied with new N373 valve and sealing\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n New Fully Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n BorgWarner\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eIncluded in Set\u003c\/strong\u003e\n Control Unit + New N373 Valve + Sealing\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSoftware \/ Hardware\u003c\/strong\u003e\n SW 6010 \/ HW H44\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 24 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eComplete Ready-to-Install Set\u003c\/strong\u003e\n This brand-new BorgWarner Haldex control unit is supplied together with a new N373 valve and sealing, helping restore stable AWD operation and reducing the risk of repeat faults caused by worn valve components or leakage.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eOEM Reference Numbers:\u003c\/strong\u003e\n \u003cp\u003e09N907554C  •  09N 907 554 C  •  HAP542  •  5WP33526-05  •  119840-02  •  SW 6010  •  HW H44\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible ECU Numbers:\u003c\/strong\u003e\n \u003cp\u003e09N907554  •  09N907554A  •  09N907554B  •  09N907554C  •  09N598549  •  09N598549A  •  09N598549B  •  09N598549C\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before placing an order, check the OEM number printed directly on your original Haldex control unit and confirm it matches the references listed above. If you are unsure about compatibility, contact us and we will help verify fitment.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eRear Differential Control Unit + N373 Valve + Sealing\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eVolkswagen T5, Multivan and California AWD with 4th Gen Haldex\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eBorgWarner\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33526-05\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eSoftware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e6010\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eHardware Version:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eH44\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003eBorgWarner Part Ref:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003e119840-02\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n \u003cdiv class=\"spec-value\"\u003eNew Tested \u0026amp; Verified Working Set\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a genuine brand-new OEM Haldex control unit set with part number \u003cstrong style=\"color: #E3FC02;\"\u003e09N907554C\u003c\/strong\u003e. The set includes the BorgWarner Gen 4 control unit, a new Haldex control valve N373 and new sealing, making it a practical replacement solution for Volkswagen T5 AWD vehicles that require both the ECU and valve-related service parts.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Set Includes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eBrand-new BorgWarner Haldex control unit 09N907554C\u003c\/li\u003e\n \u003cli\u003eNew Haldex clutch control valve N373\u003c\/li\u003e\n \u003cli\u003eNew sealing for installation service\u003c\/li\u003e\n \u003cli\u003eOEM replacement solution for restoring reliable AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eService-Friendly Replacement Package\u003c\/strong\u003e\n Combining the control unit with a new N373 valve and sealing helps simplify installation work and supports a more complete repair when the original module has failed or repeated valve-related faults are present.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe 09N907554C set is compatible with selected Volkswagen T5-series vehicles equipped with Gen 4 Haldex AWD. Always verify the exact part number on your existing module before ordering.\u003c\/p\u003e\n\n \u003ch3\u003eVolkswagen\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolkswagen Transporter T5 AWD\u003c\/li\u003e\n \u003cli\u003eVolkswagen Multivan AWD\u003c\/li\u003e\n \u003cli\u003eVolkswagen California AWD\u003c\/li\u003e\n \u003cli\u003eSelected Volkswagen T5 platform vehicles with matching 09N907554 \/ 09N907554A \/ 09N907554B \/ 09N907554C controller\u003c\/li\u003e\n \u003cli\u003eCompatible references: 09N598549, 09N598549A, 09N598549B, 09N598549C\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n If you are unsure whether this control unit set fits your vehicle, send us your VIN number or the OEM number from your existing module. We will help confirm compatibility before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Symptoms of a Faulty Module\u003c\/h2\u003e\n \u003cp\u003eA defective Haldex control unit or worn N373 valve commonly causes the following issues:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003eLoss of AWD \/ 4x4 function or rear axle not engaging\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00003\u003c\/code\u003e Control module defective\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e00448\u003c\/code\u003e Haldex clutch pump (V181) fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003e02248\u003c\/code\u003e Clutch control valve (N373) fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e AWD module not responding\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eN373\u003c\/code\u003e Haldex clutch control valve problem\u003c\/li\u003e\n \u003cli\u003eESP \/ ABS warning lights on the dashboard\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDiagnostic Tip\u003c\/strong\u003e\n Replacing the control unit together with a new N373 valve and fresh sealing can be a better solution when the vehicle shows repeated valve faults, oil leakage concerns or unstable AWD operation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation\u003c\/h2\u003e\n \u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eVerify the exact OEM part number on the original control unit\u003c\/li\u003e\n \u003cli\u003eDisconnect the battery and safely access the Haldex module on the rear differential\u003c\/li\u003e\n \u003cli\u003eRemove the old controller and inspect connector pins and housing for corrosion or moisture\u003c\/li\u003e\n \u003cli\u003eReplace the N373 valve and install the new sealing during service\u003c\/li\u003e\n \u003cli\u003eInstall the replacement ECU carefully and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes and confirm AWD module communication with suitable diagnostic equipment\u003c\/li\u003e\n \u003cli\u003eCode or adapt the module if required by the vehicle\u003c\/li\u003e\n \u003cli\u003ePerform a test drive and confirm correct AWD engagement\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If the control unit requires coding assistance after installation, our technical team is available to help. Reach us using the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"2841464e47684b495a5b054d4b5d064b4745\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n\n \u003ch3\u003e1. Water Ingress \u0026amp; Sealing Failure\u003c\/h3\u003e\n \u003cp\u003eMoisture ingress and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and AWD malfunction.\u003c\/p\u003e\n\n \u003ch3\u003e2. Valve or Pump Related Faults\u003c\/h3\u003e\n \u003cp\u003eFailure of the Haldex control valve N373 or related pump components can trigger repeated faults, poor clutch engagement and loss of rear axle drive.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eEEPROM faults, internal memory errors and circuit-board wear can cause intermittent operation, no communication faults or complete loss of rear differential control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e24-Month Warranty:\u003c\/strong\u003e This new Haldex control unit set has been tested for correct operation and is supplied with a 24-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, pump or drivetrain faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and coding support.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify this part fits your specific vehicle before placing an order\u003c\/li\u003e\n \u003cli\u003eImages are for illustrative purposes only\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eThis set includes a new N373 valve and new sealing\u003c\/li\u003e\n \u003cli\u003eCoding or adaptation may be required after installation and online support is included\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Borgwarner","offers":[{"title":"Default Title","offer_id":53775005057357,"sku":null,"price":729.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/2B261D52-658D-48E8-8147-E277E665248B.webp?v=1777021066"},{"product_id":"5wp33504-01-haldex-control-unit-volvo-awd-used-siemens","title":"5WP33504-01 Haldex Control Unit Volvo AWD Used Siemens","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Used 5WP33504-01 Haldex control unit for Volvo AWD. Original Siemens DEM module for 3rd\/4th generation Haldex, fully tested and supplied with 12-month warranty.\"\u003e\n \u003cmeta name=\"keywords\" content=\"5WP33504-01, 5WP3350401, Haldex control unit, Volvo AWD, 3rd\/4th generation Haldex, Siemens, HAP542, 109205-01, 30783198AA, 30759356AB, 36001160, XC90 AWD, DEM module\"\u003e\n \u003ctitle\u003e5WP33504-01 Haldex Control Unit Volvo AWD | Used Siemens OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eUsed OEM Haldex Control Unit 5WP33504-01 – Volvo AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 5WP33504-01\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Siemens differential electronic module for Volvo AWD vehicles with 3rd\/4th generation Haldex coupling.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 3rd\/4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Used – Fully Tested \u0026amp; Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Siemens (Original OEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33504\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSiemens \/ Volvo Ref\u003c\/strong\u003e\n 109205-01 \/ 36001160\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eTested \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Used original Haldex control unit, cleaned and tested before dispatch. Designed to restore rear axle engagement and proper AWD operation in compatible Volvo vehicles.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers \u0026amp; Cross-References\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eMain OEM Part Numbers:\u003c\/strong\u003e\n \u003cp\u003e5WP33504-01  •  5WP3350401  •  HAP542\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eSupplier \/ Module References:\u003c\/strong\u003e\n \u003cp\u003eSiemens 109205-01  •  30783198AA  •  30759356AB\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eAssociated Volvo Numbers:\u003c\/strong\u003e\n \u003cp\u003e36001160  •  30783060  •  30759758\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before ordering, compare the part number on your current Haldex \/ DEM module with the references listed above. If you are unsure, contact us and we will help verify compatibility.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHaldex AWD 3rd\/4th Generation\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eDifferential Electronic Module (DEM \/ AWD ECU)\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSiemens\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33504\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSiemens Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e109205-01\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eVolvo AWD vehicles with 3rd\/4th generation Haldex coupling\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUsed – Fully Tested \u0026amp; Functional\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupport:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eOnline support in case diagnostics or fitment help is required\u003c\/div\u003e\n\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a used original Siemens Haldex control unit with OEM number \u003cstrong style=\"color: #E3FC02;\"\u003e5WP33504-01\u003c\/strong\u003e, designed for Volvo AWD systems using the 3rd\/4th generation Haldex coupling. The module functions as the electronic management unit of the rear differential system and controls torque transfer to the rear axle when traction is needed.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls the Haldex coupling to engage rear-wheel drive when required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS \/ ESP and drivetrain systems\u003c\/li\u003e\n \u003cli\u003eMonitors AWD operation and stores diagnostic trouble codes\u003c\/li\u003e\n \u003cli\u003eManages rear differential engagement strategy in the AWD system\u003c\/li\u003e\n \u003cli\u003eHelps restore proper AWD operation when the original ECU has failed\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\n This module is intended as an OEM replacement for the original control unit. After installation, a diagnostic check and fault-code clearing are recommended.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eCommon Volvo applications for this Haldex control unit include the models below. Always confirm the part number on your current module before purchase.\u003c\/p\u003e\n\n \u003ch3\u003eVolvo\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolvo XC90 3.2 AWD (2006–2007) – engine code B6324S\u003c\/li\u003e\n \u003cli\u003eVolvo XC90 V8 AWD (2007) – engine code B8444S\u003c\/li\u003e\n \u003cli\u003eVolvo XC90 AWD (model years 2005–2008) with matching 36001160 \/ 5WP33504-01 DEM\u003c\/li\u003e\n \u003cli\u003eSelected Volvo AWD applications only if the original module number matches exactly\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n Send us your VIN number or a photo of your existing part label and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Faults \u0026amp; Symptoms\u003c\/h2\u003e\n \u003cp\u003eProblems with the Haldex control unit can cause the AWD system to stop working or operate intermittently. Common symptoms and diagnostic issues include:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003eDEM-0005\u003c\/code\u003e – Control valve internal fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e – AWD control module not responding\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eDEM-0002\u003c\/code\u003e, \u003ccode\u003eDEM-0003\u003c\/code\u003e, \u003ccode\u003eDEM-0006\u003c\/code\u003e, \u003ccode\u003eDEM-0007\u003c\/code\u003e, \u003ccode\u003eDEM-0008\u003c\/code\u003e\n\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eCEM-1A64\u003c\/code\u003e, \u003ccode\u003eBCM-0095\u003c\/code\u003e, \u003ccode\u003eBCM-0094\u003c\/code\u003e\n\u003c\/li\u003e\n \u003cli\u003eAnti-Skid Service Required message on the dashboard\u003c\/li\u003e\n \u003cli\u003eLoss of rear-wheel drive \/ AWD not working at all\u003c\/li\u003e\n \u003cli\u003eVehicle scrabbling, grabbing, skipping or jumping on tight turns\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Recommended Service\u003c\/h2\u003e\n \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eDisconnect the battery and safely access the rear differential Haldex module\u003c\/li\u003e\n \u003cli\u003eRemove the old control unit and inspect the connector for corrosion or moisture\u003c\/li\u003e\n \u003cli\u003eInstall the replacement ECU carefully and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes and check communication with a suitable diagnostic tool\u003c\/li\u003e\n \u003cli\u003eCarry out adaptation or additional diagnostic checks if required\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended While Replacing the Unit\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInspect the control valve if related faults are stored\u003c\/li\u003e\n \u003cli\u003eRenew Haldex oil \/ service fluid\u003c\/li\u003e\n \u003cli\u003eInspect wiring and connector condition\u003c\/li\u003e\n \u003cli\u003eCheck for remaining AWD, ABS or anti-skid faults after fitting\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If you need help with diagnostics, compatibility or installation, reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"61080f070e21020013124c0402144f020e0c\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n \u003ch3\u003e1. Moisture Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eWater ingress, condensation or connector corrosion can interrupt communication and damage the internal electronics of the DEM module.\u003c\/p\u003e\n\n \u003ch3\u003e2. Control Valve or Hydraulic Faults\u003c\/h3\u003e\n \u003cp\u003eRelated Haldex valve faults can overload the control strategy and trigger repeated AWD or anti-skid warnings.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eAge, vibration and thermal cycling can cause internal circuit or memory problems, leading to intermittent AWD operation or complete loss of rear drive control.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, weak power supply or poor connector contact can create no-communication errors and unstable module behaviour.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This used Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, valve or drivetrain faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and diagnostics support.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify the part number before ordering\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eDiagnostic checks are recommended after installation\u003c\/li\u003e\n \u003cli\u003eThis module should only be fitted where the original OEM number matches\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53776297558349,"sku":null,"price":319.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/www.cars-ecu.com_5.png?v=1745839182"},{"product_id":"5wp33512-03-haldex-control-unit-volvo-awd-refurbished-continental","title":"5WP33512-03 Haldex Control Unit Volvo AWD Refurbished Continental","description":"\u003cbody\u003e\n\n\n \u003cmeta charset=\"UTF-8\"\u003e\n \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n \u003cmeta name=\"description\" content=\"Refurbished 5WP33512-03 Haldex control unit for Volvo AWD. Original Continental DEM module for 4th generation Haldex, fully tested with 12-month warranty.\"\u003e\n \u003cmeta name=\"keywords\" content=\"5WP33512-03, 5WP3351203, 5WP33512, Haldex control unit, Volvo AWD, 4th generation Haldex, Continental, HAP542, 113677-01, 8G9N-14C251, XC60, XC70, XC90, V70, S60, S80, DEM module\"\u003e\n \u003ctitle\u003e5WP33512-03 Haldex Control Unit Volvo AWD | Refurbished Continental OEM\u003c\/title\u003e\n \u003cstyle\u003e\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #ffffff; background-color: #000000; }\n .container { max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #000000; }\n .product-header { background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%); color: white; padding: 30px; border-radius: 8px; margin-bottom: 30px; border: 2px solid #E3FC02; }\n .product-header h1 { font-size: 2em; margin-bottom: 10px; font-weight: 600; color: #ffffff; }\n .product-header .part-number { font-size: 1.3em; font-weight: bold; background-color: #E3FC02; color: #000000; display: inline-block; padding: 8px 15px; border-radius: 5px; margin-top: 10px; }\n .info-section { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(227, 252, 2, 0.2); border: 1px solid #E3FC02; color: #ffffff; }\n .info-section h2 { color: #E3FC02; font-size: 1.4em; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid #E3FC02; }\n .info-section h3 { color: #E3FC02; font-size: 1.1em; margin-top: 20px; margin-bottom: 10px; }\n .key-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; margin-bottom: 20px; }\n .feature-box { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; color: #ffffff; }\n .feature-box strong { color: #E3FC02; display: block; margin-bottom: 5px; }\n .oem-numbers { background-color: #2a2a2a; padding: 15px; border-radius: 5px; border-left: 4px solid #E3FC02; margin-bottom: 20px; }\n .oem-numbers strong { color: #E3FC02; display: block; margin-bottom: 8px; font-size: 1.1em; }\n .oem-numbers p { font-family: 'Courier New', monospace; font-size: 0.95em; line-height: 1.8; color: #ffffff; }\n .compatibility-list { background-color: #1a1a1a; padding: 20px; border-radius: 8px; margin-bottom: 20px; }\n .compatibility-list ul { list-style: none; padding: 0; }\n .compatibility-list li { padding: 10px; margin-bottom: 8px; background-color: #2a2a2a; border-radius: 5px; border-left: 3px solid #E3FC02; color: #ffffff; }\n .compatibility-list li:before { content: \"✓ \"; color: #E3FC02; font-weight: bold; margin-right: 8px; }\n .warning-box, .info-box, .success-box { background-color: #2a2a2a; border: 2px solid #E3FC02; border-radius: 5px; padding: 15px; margin: 20px 0; color: #ffffff; }\n .warning-box strong, .info-box strong, .success-box strong { color: #E3FC02; display: block; margin-bottom: 8px; }\n .technical-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }\n .spec-row { display: contents; }\n .spec-label { background-color: #2a2a2a; padding: 10px; font-weight: 600; color: #E3FC02; border-radius: 3px; }\n .spec-value { background-color: #111111; padding: 10px; border-radius: 3px; color: #ffffff; }\n .fault-codes { background-color: #2a2a2a; padding: 15px; border-radius: 5px; margin-top: 15px; }\n .fault-codes ul { list-style: none; padding: 0; }\n .fault-codes li { padding: 6px 0; color: #ffffff; }\n .fault-codes code { color: #E3FC02; background-color: #1a1a1a; padding: 2px 6px; border-radius: 3px; font-weight: 600; }\n .btn-contact {\n display: flex;\n align-items: center;\n justify-content: center;\n min-width: 220px;\n min-height: 52px;\n background: #000000;\n color: #E3FC02;\n padding: 14px 28px;\n text-decoration: none;\n text-align: center;\n white-space: nowrap;\n line-height: 1.2;\n border-radius: 8px;\n font-weight: 700;\n font-size: 16px;\n margin: 20px auto 0;\n width: fit-content;\n border: 2px solid #E3FC02;\n box-shadow: 0 6px 16px rgba(227, 252, 2, 0.12);\n transition: all 0.22s ease;\n box-sizing: border-box;\n }\n .btn-contact:hover { background: #E3FC02; color: #000000 !important; }\n @media (max-width: 768px) {\n .technical-specs { grid-template-columns: 1fr; }\n .btn-contact { width: 100%; max-width: 320px; }\n }\n \u003c\/style\u003e\n\n\n \u003cdiv class=\"container\"\u003e\n \u003cdiv class=\"product-header\"\u003e\n \u003ch1\u003eRefurbished OEM Haldex Control Unit 5WP33512-03 – Volvo AWD\u003c\/h1\u003e\n \u003cdiv class=\"part-number\"\u003ePart Number: 5WP33512-03\u003c\/div\u003e\n \u003cp style=\"margin-top: 15px; font-size: 1.08em; color: #ffffff;\"\u003eOriginal Continental differential electronic module for Volvo AWD vehicles with 4th generation Haldex coupling.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003cdiv class=\"key-features\"\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSystem Type\u003c\/strong\u003e\n Haldex AWD 4th Generation\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eCondition\u003c\/strong\u003e\n Refurbished – Fully Tested \u0026amp; Functional\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eManufacturer\u003c\/strong\u003e\n Continental (Original OEM)\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eSupplier Reference\u003c\/strong\u003e\n HAP542 \/ 5WP33512\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eContinental \/ Volvo Ref\u003c\/strong\u003e\n 113677-01 \/ 8G9N-14C251\n \u003c\/div\u003e\n \u003cdiv class=\"feature-box\"\u003e\n \u003cstrong\u003eWarranty\u003c\/strong\u003e\n 12 Months\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"success-box\"\u003e\n \u003cstrong\u003eRefurbished \u0026amp; Verified Working Unit\u003c\/strong\u003e\n Professionally refurbished original Haldex control unit, tested before dispatch to restore reliable rear axle engagement and AWD operation in compatible Volvo vehicles.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eOEM Part Numbers \u0026amp; Cross-References\u003c\/h2\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eMain OEM Part Numbers:\u003c\/strong\u003e\n \u003cp\u003e5WP33512-03  •  5WP3351203  •  5WP33512  •  HAP542\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eCompatible \/ Interchangeable Numbers:\u003c\/strong\u003e\n \u003cp\u003e5WP33512-01  •  5WP33512-02  •  5WP33512-03\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"oem-numbers\"\u003e\n \u003cstrong\u003eSupplier \/ Vehicle References:\u003c\/strong\u003e\n \u003cp\u003e113677-01  •  11367701  •  8G9N-14C251  •  8G9N14C251\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eAlways Verify Your Part Number\u003c\/strong\u003e\n Before ordering, compare the part number on your current Haldex \/ DEM module with the references listed above. Some vehicles may require recoding after installation.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdiv class=\"technical-specs\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSystem Type:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHaldex AWD 4th Generation\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComponent:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eDifferential Electronic Module (DEM \/ AWD ECU)\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eManufacturer:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eContinental\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupplier Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHAP542 \/ 5WP33512\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eContinental \/ Volvo Ref:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e113677-01 \/ 8G9N-14C251\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eApplication:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eVolvo AWD vehicles with 4th generation Haldex coupling\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003ePart Condition:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eRefurbished – Fully Tested \u0026amp; Functional\u003c\/div\u003e\n\u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSupport:\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eOnline support if diagnostics, compatibility or coding help is needed\u003c\/div\u003e\n\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eProduct Description\u003c\/h2\u003e\n \u003cp\u003eThis is a refurbished original Continental Haldex control unit with OEM number \u003cstrong style=\"color: #E3FC02;\"\u003e5WP33512-03\u003c\/strong\u003e, designed for Volvo AWD systems using the 4th generation Haldex coupling. The module functions as the electronic management unit of the rear differential system and controls torque transfer to the rear axle when traction is needed.\u003c\/p\u003e\n\n \u003ch3\u003eWhat This Control Unit Does\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; margin-top: 10px; line-height: 1.85;\"\u003e\n \u003cli\u003eControls the Haldex coupling to engage rear-wheel drive when required\u003c\/li\u003e\n \u003cli\u003eCommunicates with ABS \/ DSTC and drivetrain systems\u003c\/li\u003e\n \u003cli\u003eMonitors AWD operation and stores diagnostic trouble codes\u003c\/li\u003e\n \u003cli\u003eManages hydraulic clutch pressure strategy in the rear coupling\u003c\/li\u003e\n \u003cli\u003eHelps restore proper AWD operation when the original ECU has failed\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"info-box\"\u003e\n \u003cstrong\u003eOEM Replacement Unit\u003c\/strong\u003e\n This refurbished DEM module is intended as a direct OEM-style replacement for the original control unit. After installation, fault-code clearing and a diagnostic check are recommended, and some vehicles may need recoding.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n \u003cp\u003eCommon Volvo applications for this Haldex control unit include the models below. Always confirm the part number on your current module before purchase.\u003c\/p\u003e\n\n \u003ch3\u003eVolvo\u003c\/h3\u003e\n \u003cdiv class=\"compatibility-list\"\u003e\n \u003cul\u003e\n \u003cli\u003eVolvo V70 AWD (2009–2012)\u003c\/li\u003e\n \u003cli\u003eVolvo S60 AWD (2009–2012)\u003c\/li\u003e\n \u003cli\u003eVolvo S80 AWD (2009–2012)\u003c\/li\u003e\n \u003cli\u003eVolvo XC60 AWD (2009–2012)\u003c\/li\u003e\n \u003cli\u003eVolvo XC70 AWD (2009–2012)\u003c\/li\u003e\n \u003cli\u003eVolvo XC90 AWD (2009–2012)\u003c\/li\u003e\n \u003cli\u003eSelected Volvo AWD applications with matching 5WP33512-01 \/ -02 \/ -03 module numbers\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eNot Sure About Compatibility?\u003c\/strong\u003e\n Send us your VIN number or a photo of your existing part label and we will help verify fitment before you order.\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eCommon Diagnostic Faults \u0026amp; Symptoms\u003c\/h2\u003e\n \u003cp\u003eProblems with the Haldex control unit can cause the AWD system to stop working or operate intermittently. Common symptoms and diagnostic issues include:\u003c\/p\u003e\n \u003cdiv class=\"fault-codes\"\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003ccode\u003eDEM-0005\u003c\/code\u003e – Control valve internal fault\u003c\/li\u003e\n \u003cli\u003e\n\u003ccode\u003eNo Communication\u003c\/code\u003e – AWD control module not responding\u003c\/li\u003e\n \u003cli\u003eLoss of rear-wheel drive \/ AWD not working correctly\u003c\/li\u003e\n \u003cli\u003eDSTC \/ anti-skid warnings related to the rear differential control module\u003c\/li\u003e\n \u003cli\u003eIntermittent AWD engagement or communication-related faults\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eInstallation \u0026amp; Recommended Service\u003c\/h2\u003e\n \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eDisconnect the battery and safely access the rear differential Haldex module\u003c\/li\u003e\n \u003cli\u003eRemove the old control unit and inspect the connector for corrosion or moisture\u003c\/li\u003e\n \u003cli\u003eInstall the replacement ECU carefully and reconnect all plugs securely\u003c\/li\u003e\n \u003cli\u003eClear stored fault codes and check communication with a suitable diagnostic tool\u003c\/li\u003e\n \u003cli\u003eCarry out recoding or adaptation if required by the vehicle after installation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eRecommended While Replacing the Unit\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInspect the Haldex control valve if related faults are stored\u003c\/li\u003e\n \u003cli\u003eRenew Haldex oil \/ service fluid\u003c\/li\u003e\n \u003cli\u003eInspect wiring and connector condition\u003c\/li\u003e\n \u003cli\u003eCheck for remaining AWD, ABS or DSTC faults after fitting\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003cdiv class=\"warning-box\"\u003e\n \u003cstrong\u003eOnline Technical Support Included\u003c\/strong\u003e\n If you need help with diagnostics, compatibility or installation, reach us via the contact button below or at \u003cstrong\u003e\u003ca href=\"\/cdn-cgi\/l\/email-protection\" class=\"__cf_email__\" data-cfemail=\"660f08000926050714154b0305134805090b\"\u003e[email protected]\u003c\/a\u003e\u003c\/strong\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eWhy Haldex Control Units Fail\u003c\/h2\u003e\n \u003ch3\u003e1. Moisture Ingress \u0026amp; Corrosion\u003c\/h3\u003e\n \u003cp\u003eWater ingress, condensation or connector corrosion can interrupt communication and damage the internal electronics of the DEM module.\u003c\/p\u003e\n\n \u003ch3\u003e2. Control Valve or Hydraulic Faults\u003c\/h3\u003e\n \u003cp\u003eRelated Haldex valve faults can overload the control strategy and trigger repeated AWD warnings or control-module faults.\u003c\/p\u003e\n\n \u003ch3\u003e3. Internal Electronic Failure\u003c\/h3\u003e\n \u003cp\u003eHeat, vibration and age can damage internal circuits, causing communication loss, stored faults or intermittent AWD function.\u003c\/p\u003e\n\n \u003ch3\u003e4. Wiring or Power Supply Problems\u003c\/h3\u003e\n \u003cp\u003eDamaged wiring, weak power supply or poor connector contact can create no-communication errors and unstable module behaviour.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuality Assurance \u0026amp; Warranty\u003c\/h2\u003e\n \u003cp\u003e\u003cstrong style=\"color:#E3FC02;\"\u003e12-Month Warranty:\u003c\/strong\u003e This refurbished Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWarranty Coverage Includes:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eInternal control unit malfunction\u003c\/li\u003e\n \u003cli\u003eCommunication failures caused by the module itself\u003c\/li\u003e\n \u003cli\u003eFaults related to internal memory or controller operation\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWarranty Exclusions:\u003c\/h3\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.85;\"\u003e\n \u003cli\u003eIncorrect installation or incompatible vehicle fitment\u003c\/li\u003e\n \u003cli\u003eExternal wiring, valve or drivetrain faults\u003c\/li\u003e\n \u003cli\u003ePhysical damage, water damage after installation or mishandling\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eQuestions or Need Help?\u003c\/h2\u003e\n \u003cp\u003eOur technical team is ready to assist with compatibility checks, installation guidance and diagnostics support.\u003c\/p\u003e\n \u003ca href=\"https:\/\/cars-ecu.com\/pages\/contact\" class=\"btn-contact\"\u003eContact Us\u003c\/a\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"info-section\"\u003e\n \u003ch2\u003eImportant Purchase Information\u003c\/h2\u003e\n \u003cul style=\"margin-left: 20px; line-height: 1.9;\"\u003e\n \u003cli\u003ePlease verify the part number before ordering\u003c\/li\u003e\n \u003cli\u003eWorldwide shipping is available\u003c\/li\u003e\n \u003cli\u003eIf your country is not listed at checkout, contact us and the order can be processed manually\u003c\/li\u003e\n \u003cli\u003eDiagnostic checks are recommended after installation\u003c\/li\u003e\n \u003cli\u003eThis module should only be fitted where the original OEM number matches\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003cscript data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"\u003e\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Continental","offers":[{"title":"Default Title","offer_id":53776317415757,"sku":null,"price":319.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/files\/IMG-6945_6f237bf8-5b60-4def-98ad-049e0f03750d.jpg?v=1741337565"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6945\/5181\/collections\/137BD162-1B50-47BB-BD66-17538D3CD36B.jpg?v=1760546730","url":"https:\/\/cars-ecu.com\/collections\/haldex-ecu-4-gen.oembed?page=2","provider":"Cars-Ecu","version":"1.0","type":"link"}