• 0ay907554j Haldex control unit 5.gen
  • rear differential 5. generation. Fully functional
1 2

Borgwarner

0AY907554J Haldex control unit Used

0AY907554J Haldex control unit Used

€299,90 EUR
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€299,90 EUR
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0AY907554J Haldex Control Unit Gen 5 AWD | Refurbished OEM | Cars-ECU.com

Refurbished Haldex Control Unit 0AY907554J – Gen 5 AWD

0AY907554J

Original BorgWarner rear differential control module for VAG 5th generation Haldex AWD vehicles

System Type Haldex AWD Gen 5 (5th Generation)
Condition Used / Fully Tested & Functional
Manufacturer BorgWarner
SW / HW Version SW: 7540  /  HW: H52
Compatible ECU 0AY907554F  /  0AY907554J
Support Online Coding Assistance Included
✓ Tested & Verified Working Unit Professionally prepared replacement Haldex controller for Gen 5 AWD systems. Designed to restore stable rear axle engagement, proper system communication and reliable all-wheel-drive function in compatible VAG vehicles.

OEM Part Numbers & Cross-References

Main OEM Part Number:

0AY907554J  •  0AY 907 554 J

Compatible / Related ECU Numbers:

0AY907554F  •  0AY907554J

Module References:

BorgWarner  •  SW:7540  •  HW:H52

⚠️ Always Verify Your Part Number Please compare the exact part number printed on your current Haldex control unit before ordering. Vehicle model alone is not always enough to guarantee compatibility.

Technical Specifications

System Type:
Haldex AWD 5th Generation
Component:
Rear Differential Control Unit (ECU / AWD Module)
Manufacturer:
BorgWarner
Software Version:
SW 7540
Hardware Version:
HW H52
Application:
VAG Group AWD vehicles with 5th generation Haldex coupling
Compatible ECU:
0AY907554F / 0AY907554J
Part Condition:
Used / Fully Tested / Functional

Product Description

This is an original BorgWarner Haldex control unit with OEM number 0AY907554J, intended for 5th generation Haldex AWD systems used in a wide range of Volkswagen Group vehicles. The module controls rear differential engagement, communicates with ABS / ESP systems and helps restore correct torque transfer to the rear axle.

What This Control Unit Does

  • Controls the Haldex coupling for rear-wheel engagement on demand
  • Communicates with the vehicle’s ABS / ESP and drivetrain modules
  • Stores and reports diagnostic trouble codes
  • Helps restore AWD performance after control unit failure
  • Supports traction and stability in low-grip driving conditions

A faulty Gen 5 Haldex ECU can cause AWD disengagement, no-communication faults, intermittent ABS-related errors or dashboard ESP / ABS warning lights. This tested replacement unit is prepared to help restore normal AWD function in compatible vehicles.

ℹ️ Coding Support Functionality warranty and online support are included in case the module needs coding after installation. If you need assistance with diagnostics or setup, contact us and we will help with the correct procedure.

Vehicle Compatibility

This 5th generation Haldex controller is used across a broad range of VAG AWD vehicles. Always verify the exact part number on the original module before purchase:

Volkswagen

  • Golf AWD / 4Motion
  • Passat AWD / 4Motion
  • Tiguan AWD
  • Sharan AWD
  • Transporter AWD
  • Caddy AWD

Audi

  • A1 Quattro
  • A3 Quattro
  • TT Quattro
  • Q2 Quattro
  • Q3 Quattro

Škoda

  • Octavia 4x4
  • Kodiaq 4x4
  • Superb 4x4
  • Karoq 4x4
  • Yeti 4x4

SEAT

  • Leon 4Drive
  • Ateca 4Drive
  • Arona AWD applications
  • Tarraco 4Drive
  • Alhambra AWD
✓ Not Sure About Compatibility? Send us your VIN number or the part number from your existing Haldex ECU and we will help verify fitment before you order.

Common Diagnostic Fault Codes

Problems with the Haldex control unit can trigger communication faults and AWD malfunctions. Common fault codes and symptoms include:

  • 01324 – Control Module for All Wheel Drive (J492): No Communication
  • 01316 – ABS Control Module: Check DTC Memory / Intermittent
  • No Communication – AWD module not responding
  • ESP / ABS warning lamps illuminated on dashboard
  • AWD not working correctly or rear axle not engaging
  • Intermittent traction loss or drivetrain fault behavior

Installation & Service Notes

Installation Notes

  • Disconnect the battery before accessing the rear differential Haldex module
  • Remove the old control unit and inspect the housing and connectors for moisture or corrosion
  • Install the replacement ECU carefully and reconnect all plugs securely
  • Clear stored fault codes and confirm module communication with a suitable diagnostic tool
  • Carry out coding or adaptation if required by the vehicle after installation

Recommended Checks

  • Check Haldex pump operation and electrical supply
  • Inspect wiring and connectors for intermittent communication issues
  • Verify AWD operation after installation and road test
  • Review related ABS / ESP fault memory if communication errors persist
✓ Online Technical Support Included 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.

Questions or Need Help?

If you have any questions about compatibility, diagnostics or installation, contact us and we will help you choose the correct Haldex solution for your vehicle.

Contact Us

Important Purchase Information

  • Please verify this part fits your specific vehicle before placing an order
  • The photos are for illustrative purposes only
  • Worldwide shipping is available – if your country is not shown at checkout, contact directly for manual processing
  • Online support is included if the module requires coding after installation
  • Vehicle fitment should always be confirmed by the original ECU number

© Cars-ECU.com | Refurbished OEM Automotive Electronics | Haldex AWD Control Units

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Let customers speak for us

from 36 reviews
Very good and fast customer service

Very good and fast customer service. Excellent quality and material. Fast international delivery.

Bremer Zalán
1K0907554B Haldex control unit Refurbished
1K0907554B Haldex control unit Refurbished
Great service and

Great service and advice

David Lindqvist
Cars-Ecu
Fast delivery and great condition on the

Fast delivery and great condition on the product

David Lindqvist
Haldex clutch 4Gen Repair set N373 valve and seal kit
Haldex clutch 4Gen Repair set N373 valve and seal kit
Perfect

Perfect

István Szaniszló
Cars-Ecu

Excellent service, Very professional.

Anssi Harinen
Cars-Ecu

Bra service

Daniel gustafsson
Cars-Ecu

Great selection of parts. Reasonable pricing. Fast delivery and super service/support. My new Haldex ECU worked like a charm, once the car had recognised it (took a couple of restarts of the car and fault code clearing with OBDeleven). Highly recommend!

Martin Flood
Cars-Ecu

Good quality services and tailor-made products. I recommend!

Kolen
Cars-Ecu

Fantastic company, Jakub who is very helpfull and swift to reply. Helped me fix my haldex gen 5 myself, would really recommend anyone to work with or buy from this great company! Thanks again for your help Jakub

Sander van Wezel
Cars-Ecu

Very good job

Lusaja Tajaja
Cars-Ecu

fully functional parts and delivery without problems. I recommend it

Munir A
Cars-Ecu
Jag beställde ett vegans haldex kit från dom

Jag beställde ett vegans haldex kit från dom, och de skickat 👍
Jag rekommenderar dom om någon vill handlar från dom.

Filip Nguyen
Cars-Ecu
Palvelu todella hyvää ja

Palvelu todella hyvää ja nopeaa👍

Aki Martiskainen
Cars-Ecu
Toimii kuten pitää👍 asiointi helppoa ja

Toimii kuten pitää👍 asiointi helppoa ja toimitus tuli ajoissa🙂

Aki Martiskainen
0AY907554E Haldex control unit Used
0AY907554E Haldex control unit Used

Osa tuli kuten sivulla kerrottiin ja toimii kuten pitää.
Hyvä palvelu.👍

aki martiskainen
Cars-Ecu