Genuine VW/Audi 0CQ-598-305 Haldex Pump Gasket Seal Set

Genuine VW/Audi 0CQ-598-305 Haldex Pump Seal & Gasket Set | AWD Coupling Service

Restore proper sealing during Haldex AWD pump service with the Genuine VW/Audi 0CQ-598-305 Haldex Pump Gasket Seal Set.

Designed for select Volkswagen and Audi all-wheel-drive applications, this genuine VAG service part is used when removing and servicing the Haldex pump. Replacing the pump seals and required securing hardware during service helps ensure a proper seal and helps prevent leaks around the Haldex pump assembly.

The 0CQ-598-305 part number is used across select Volkswagen, Audi, SEAT, Škoda, CUPRA and other VAG applications. Exact fitment varies by vehicle, drivetrain and Haldex generation, so vehicle verification is strongly recommended before ordering.

Key Benefits

• Genuine VW/Audi OE part

• OE Part Number: 0CQ-598-305

• Designed for Haldex AWD coupling service

• Used when the Haldex pump is removed

• Helps restore proper pump sealing

• Helps prevent fluid leakage after pump service

• OE-style fit and sealing performance

• Ideal for scheduled Haldex maintenance and pump servicing

• Commonly used on Volkswagen and Audi MQB AWD vehicles

Specific Details

Fitment Sheet

Volkswagen

Audi

0CQ598305 genuine seal set for the Audi A3 8V quattro, Audi S3 8V quattro, VW Alltrack, Golf VII SportWagen 4Motion, Golf VII R 4Motion and Golf VII R Facelift 4Motion.

Important: Fitment should be verified by VIN or vehicle selector. Do not assume that every Haldex-equipped VW/Audi uses 0CQ598305.

What Does 0CQ-598-305 Do?

The Haldex coupling is responsible for transferring torque to the rear wheels when additional traction is required in an AWD vehicle.

During Haldex pump removal, the original seals should be replaced to maintain proper sealing. The 0CQ598305 gasket/seal set is designed for this service operation.

Replacing the seals during pump service helps reduce the possibility of:

• Haldex fluid leaks

• Seepage around the pump

• Improper sealing after pump removal

• Premature contamination of the surrounding assembly

When Should You Replace the Haldex Pump Seals?

The 0CQ598305 seal set is commonly used when:

• Removing the Haldex pump for cleaning

• Servicing the Haldex pump

• Cleaning the pump screen

• Replacing or servicing the Haldex pump

• Performing Haldex AWD maintenance

• Reinstalling a serviced pump

Common Symptoms of Haldex Service Problems

A malfunctioning or poorly maintained Haldex system can contribute to AWD-related symptoms such as:

• Reduced rear-wheel engagement

• Loss of AWD performance

• Front-wheel spin during acceleration

• Haldex/AWD warning lights

• Drivetrain fault codes

• Unusual noises from the Haldex area

• Fluid leakage around the Haldex pump

• Poor traction under acceleration

Note: These symptoms can have multiple causes. A proper diagnostic procedure should be performed before replacing Haldex components.

OE Part Number & Cross References

Genuine VW/Audi: 0CQ-598-305
OE Number: 0CQ598305
Formatted OE: 0CQ 598 305

This OE number is cross-referenced across VW Group applications including Volkswagen, Audi, SEAT, Škoda and CUPRA in parts catalogs.

Some aftermarket manufacturers also offer replacement kits using 0CQ598305 as the OE reference. OE-reference numbers should be used for compatibility verification and do not necessarily indicate that the aftermarket part is genuine VW/Audi.

What's Included?

1 × Genuine VW/Audi 0CQ-598-305 Haldex Pump Seal/Gasket Set

Verify the package contents against the manufacturer's current parts catalog before installation, as kit contents can vary by supplier or supersession.

Important Fitment & Installation Notice

Professional installation is recommended.

Haldex service procedures vary by vehicle and Haldex generation. Always follow the factory repair procedure for the specific vehicle.

Verify the following before ordering:

• Year

• Make

• Model

• Engine

• Drivetrain

• AWD system

• Haldex generation

• VIN

Do not rely on the part number alone when ordering.

Service your Haldex system correctly with the Genuine VW/Audi 0CQ-598-305 pump gasket and seal set. Replace the required seals whenever the Haldex pump is removed and help keep your AWD system properly sealed.

images for illustration purposes only.