OEM Part Numbers

Technical Specifications

Product Description

This original 0AY598301 repair seal kit is designed for 4th generation Haldex control units. It is used when the AWD ECU housing has been opened for repair, testing or internal service and needs to be resealed correctly before reinstallation. [web:194][web:197][web:200]

What This Seal Kit Does

• Provides the sealing components needed to reseal the Haldex control unit housing
• Helps protect the ECU against moisture, dirt and environmental contamination
• Supports proper housing closure after control unit opening or repair
• Includes replacement screws for secure reassembly
• Serves as a direct replacement seal set for compatible 4th gen Haldex ECU applications

Vehicle Compatibility

This repair kit is suitable for selected vehicles equipped with 4th generation Haldex control units. Public references list compatibility across many VW Group, Volvo, Land Rover, Ford, Opel and Saab AWD applications using the Gen 4 Haldex system. [web:197][web:200]

Suitable for the Following Vehicle Groups

Common Service Situations

This repair seal kit is typically used when the Haldex control unit has already been opened for internal repair, testing or inspection. It is not a fault-fixing electronic component by itself, but an essential sealing part used during professional ECU service work. [web:196][web:197][web:198]

Installation & Service Notes

Recommended Steps

• Verify that the vehicle uses a 4th generation Haldex control unit
• Remove all old sealing material carefully from the housing surfaces
• Inspect the control unit cover and housing for damage before reassembly
• Install the new sealing strip and gasket correctly
• Use the supplied screws during reassembly where applicable
• Make sure the control unit housing is closed evenly and securely

Why Proper ECU Sealing Matters

1. Moisture Protection

A correct seal helps protect sensitive electronics inside the Haldex control unit from water ingress and condensation.

2. Dirt Protection

Proper sealing reduces the risk of contamination entering the ECU housing after repair.

3. Reliable Reassembly

The correct kit supports cleaner and safer reassembly after testing or refurbishment of the control unit.

4. Long-Term Service Quality

Using the proper seal kit can help reduce repeat problems caused by poor housing closure after ECU work.

Quality Assurance & Warranty

12-Month Warranty: This new repair seal kit is supplied with a 12-month warranty covering the supplied sealing components under normal intended use. [web:194][web:197]

Warranty Coverage Includes:

• Manufacturing defects of the supplied sealing components
• Material defects under normal service use
• Defects of the included screws, gasket and sealing strip

Warranty Exclusions:

• Incorrect installation
• Damage during ECU opening or reassembly
• Use on the wrong Haldex generation or incompatible housing
• Failure caused by unrelated internal ECU or hydraulic faults

Questions or Need Help?

Our technical team is ready to assist with compatibility checks, installation guidance and product selection.

Important Purchase Information

• Please verify this part fits your specific Haldex control unit before placing an order
• The exact OEM number and Haldex generation are more important than vehicle model alone
• Photos are for illustrative purposes only
• Worldwide shipping is available
• If your country is not listed at checkout, contact us and the order can be processed manually