2K0907554A Haldex Control Unit Gen 4 | Refurbished OEM
Refurbished Haldex Control Unit 2K0907554A
Part Number: 2K0907554A
OEM original rear differential / Gen 4 Haldex AWD control module for Volkswagen Caddy vehicles
System Type
Haldex AWD 4th Generation
Condition
Refurbished Fully Functional
Manufacturer
Continental
Supplier Reference
HAP542 / 5WP33525-04
Software / Hardware
SW 5005 / HW H43
Warranty
12 Months
Tested & Verified Working Unit
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.
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 4th Generation
Component:
Rear Differential Control Unit
Application:
Volkswagen Caddy AWD vehicles with Gen 4 Haldex
Manufacturer:
Continental
Supplier Ref:
HAP542 / 5WP33525-04
Continental Ref:
114477-01
Software Version:
5005
Hardware Version:
H43
Part Condition:
Refurbished Tested & Verified Working
Product Description
This is a refurbished original Continental Haldex control unit with OEM number 2K0907554A, 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.
What This Control Module Does
Controls rear-wheel engagement when extra traction is required
Communicates with ABS, ESP and drivetrain electronics
Monitors system operation and stores diagnostic trouble codes
Controls pump and clutch pressure strategy in the Haldex coupling
Helps restore proper AWD operation when the original ECU has failed
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
This Haldex control unit is intended for Volkswagen Caddy AWD applications. Always confirm the part number on your old module before purchase.
Volkswagen
Volkswagen Caddy 4Motion
Volkswagen Caddy AWD
Volkswagen Caddy Maxi 4Motion
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:
00003 Control Module defective
00448 Haldex Clutch Pump electrical fault
02248 Haldex Control Valve N373 fault / defective
No Communication AWD module not responding
N373 Haldex valve related fault
ESP / ABS Warning lights caused by AWD malfunction
Loss of rear-wheel drive or intermittent AWD operation
Diagnostic Tip
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.
Installation
Installation Steps
Disconnect the battery and safely access the Haldex ECU on the rear differential
Remove the old control unit and inspect the connector for corrosion or moisture
Install the replacement ECU carefully and reconnect all plugs securely
Clear stored fault codes and check communication with a suitable diagnostic tool
Carry out coding if required by the vehicle after installation
Perform a test drive and confirm correct AWD engagement
Online Technical Support Included
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 [email protected]
Why Haldex Control Units Fail
1. Water Ingress & Connector Corrosion
Moisture and contamination at the connector or housing can damage internal electronics and lead to unstable communication or total AWD failure.
2. Pump or Valve Related Faults
Issues with the Haldex pump or N373 control valve can overload the system and trigger repeated control module faults.
3. Internal Electronic Failure
Internal circuit wear and electronic failure can cause intermittent operation, no communication faults or complete loss of rear axle engagement.
4. Wiring or Power Supply Problems
Damaged wiring, poor terminal contact or unstable power supply can interrupt module operation and create misleading drivetrain-related errors.
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
