System Type
Haldex AWD 4th Generation
Condition
Refurbished Fully Functional
Manufacturer
Continental
Supplier Reference
HAP542 / 5WP33526-05
Software / Hardware
SW 6010 / HW H44
Warranty
12 Months
Tested & Verified Working Unit
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.
OEM Part Numbers
OEM Reference Numbers:
09N907554C • 09N 907 554 C • HAP542 • 5WP33526-05 • 119840-02 • SW 6010 • HW H44
Compatible ECU Numbers:
09N907554 • 09N907554A • 09N907554B • 09N907554C
Always Verify Your Part Number
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.
Technical Specifications
System Type:
Haldex AWD 4th Generation
Component:
Rear Differential Control Unit (ECU / AWD Module)
Manufacturer:
Continental
Supplier Ref:
HAP542 / 5WP33526-05
Software Version:
SW 6010
Continental Part Ref:
119840-02
Application:
Volkswagen T5, Multivan and California AWD with 4th Gen Haldex
Part Condition:
Refurbished / Fully Tested / Resealed
Product Description
This is a refurbished OEM Haldex control unit with part number 09N907554C, 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.
What This Control Unit Does
- Controls hydraulic activation of the Haldex coupling for rear-wheel engagement
- Helps restore proper AWD / 4x4 operation in T5, Multivan and California applications
- Communicates with ABS / ESP and related drivetrain systems
- Stores and reports diagnostic trouble codes when faults occur
- Supports traction and stability in low-grip road conditions
A 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.
Online Coding Support
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.
Vehicle Compatibility
This 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.
Volkswagen
- Transporter T5 AWD
- Multivan AWD
- California AWD
- Selected Volkswagen T5 platform vehicles with matching 09N907554C / 09N907554B / 09N907554A controller
Not Sure About Compatibility?
Send us your VIN number or your original ECU part number and we will help verify fitment before you order.
Common Symptoms of a Faulty Module
Problems with the Haldex control unit can trigger fault codes, communication problems and loss of AWD function. Typical symptoms include:
-
00003 – Control Module Defective
-
00448 – Haldex Clutch Pump (V181) Fault
-
02248 – Clutch Control Valve N373 Fault
-
No Communication – AWD module not responding
-
N373 – Haldex clutch control valve problem
- ESP / ABS warning lights on the dashboard
- AWD not working correctly or rear axle not engaging
Installation
Installation Notes
- Disconnect the battery and safely access the Haldex module on the rear differential
- Remove the old controller and inspect connector pins and housing for corrosion or moisture
- Install the replacement ECU carefully and reconnect all plugs securely
- Clear fault codes and confirm AWD module communication with a suitable diagnostic tool
- Carry out coding or adaptation if required by the vehicle after installation
Recommended Service Items
- Replace the Haldex control valve N373 when replacing the control unit
- Check wiring, connectors and surrounding module area
- Inspect the Haldex pump and related AWD components
- Verify AWD operation after installation and road test
Online Technical Support Included
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
[email protected]
Why Haldex Control Units Fail
1. Water Ingress & Sealing Failure
Moisture ingress and poor sealing can affect the control unit housing and electronics, leading to corrosion, unstable communication and AWD malfunction.
2. Valve or Pump Related Faults
Failure of the Haldex control valve N373 or related pump components can trigger repeated faults, poor clutch engagement and loss of rear axle drive.
3. Internal Electronic Failure
Internal controller faults, worn electronic components or memory problems can cause intermittent operation or complete loss of rear differential control.
4. Wiring or Connector Problems
Damaged connectors, poor terminal contact or unstable power supply can interrupt module operation and create misleading communication or actuator fault codes.
Warranty
12-Month Warranty: This refurbished Haldex control unit has been tested for correct operation and is supplied with a 12-month warranty under normal operating conditions.
Warranty Coverage Includes:
- Internal control unit malfunction
- Communication failures caused by the module itself
- Faults related to internal memory or controller operation
Warranty Exclusions:
- Incorrect installation or incompatible vehicle fitment
- External wiring, valve, pump or drivetrain faults
- Physical damage, water damage after installation or mishandling
Questions or Need Help?
Our technical team is ready to assist with compatibility checks, installation guidance and coding support.
Contact Us
Important Purchase Information
- Please verify the part number before ordering
- Images are for illustrative purposes only
- Worldwide shipping is available
- Replacing the Haldex valve N373 is recommended when fitting a replacement ECU
- Online coding support is available if required after installation
