1K0907554F Haldex Control Unit Gen 2 | Refurbished OEM
Refurbished Haldex Control Unit 1K0907554F
Part Number: 1K0907554F
OEM original rear differential / Gen 2 Haldex AWD control module for Volkswagen Group vehicles
System Type
Haldex AWD 2nd Generation
Condition
Refurbished Fully Functional
Manufacturer
Siemens
Supplier Reference
HAP511 / 5WP22232-02
Software / Hardware
SW 0115 / HW H05
Warranty
12 Months
Tested & Verified Working Unit
Each module is professionally refurbished, sealed with new silicone and fully tested before dispatch. It is supplied as a dependable OEM replacement for a faulty original Haldex controller and helps restore stable AWD communication and rear axle engagement.
Always Verify Your Part Number
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.
Technical Specifications
System Type:
Haldex AWD 2nd Generation
Component:
Rear Differential Control Unit
Application:
Volkswagen Group AWD / 4x4 vehicles with Gen 2 Haldex
Manufacturer:
Siemens
Supplier Ref:
HAP511 / 5WP22232-02
VW / Siemens Ref:
107718-02
Software Version:
0115
Hardware Version:
H05
Part Condition:
Refurbished Tested & Verified Working
Product Description
This is a genuine refurbished OEM Haldex control unit with part number 1K0907554F. It is a key electronic component of the second-generation Haldex all-wheel-drive system and is responsible for controlling the hydraulic operation of the Haldex clutch and rear axle engagement when traction is required.
What This Control Module Does
Controls the Haldex coupling for rear-wheel engagement on demand
Communicates with ABS, ESP and drivetrain modules
Monitors AWD system operation and stores diagnostic trouble codes
Controls pump activation and clutch pressure strategy
Supports stable AWD function in normal driving and low-traction conditions
Direct OEM Replacement
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.
Vehicle Compatibility
The 1K0907554F is compatible with selected Volkswagen Group vehicles equipped with Gen 2 Haldex AWD. Always verify the exact part number on your existing module before ordering.
Volkswagen
Volkswagen Golf
Volkswagen Golf R32
Volkswagen Passat
Audi
Audi A3
Audi S3
Audi TT
Škoda
Škoda Octavia
Škoda Superb
Škoda Fabia
SEAT
SEAT Altea
Not Sure About Compatibility?
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.
Common Symptoms of a Faulty Module
A defective Haldex control unit commonly causes the following issues:
Loss of AWD / 4x4 function or no rear axle engagement
00003 Control module defective
00448 Haldex clutch pump (V181) faulty
01324 All Wheel Drive Control Module (J492) no communication
02248 Valve for controlling clutch operating angle (N373) defective
16347 Control module defective / internal fault
ESP / ABS warning lamps illuminated on dashboard
No communication with AWD module during diagnostics
Rear-wheel drive not engaging or AWD not working at all
Diagnostic Tip
If this module is being replaced, it is recommended to inspect the Haldex control valve N373, pump and connector condition. A proper diagnostic scan should be carried out before and after installation.
Installation
Installation Steps
Disconnect the battery and safely access the rear differential Haldex module
Remove the old control unit and inspect connectors for corrosion or moisture
Fit the replacement ECU carefully and reconnect all plugs securely
Clear fault codes and check AWD module communication with suitable diagnostic equipment
Carry out any required coding or adaptation if your vehicle requests it
Perform a test drive and confirm correct AWD engagement
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 and damaged sealing can affect the control unit housing and internal electronics, leading to corrosion, unstable communication and complete AWD malfunction.
2. Valve or Pump Related Faults
Failure of the Haldex control valve N373 or pump can overload the system and trigger repeated module-related diagnostic errors.
3. Internal Electronic Failure
Internal circuit faults, controller wear and communication failure can cause intermittent operation or complete loss of rear differential control.
4. Wiring or Power Supply Problems
Damaged wiring, 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 controller operation under normal use
Warranty Exclusions:
Incorrect installation or incompatible vehicle fitment
External wiring, pump or valve 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.
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!
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
