Genuine VAG Seal & Bolt Kit

Genuine VAG Seal & Bolt Kit (0CQ598305)

This is the official VAG (Volkswagen Audi Group) seal and bolt kit, supplied under OE part number 0CQ598305. It contains the small but essential hardware needed when working on the Haldex coupling, the clever clutch unit that controls power delivery to the rear wheels on Volkswagen, Audi, SEAT, Skoda and Cupra 4WD models.

Whenever the Haldex filter or oil is changed, the original seals and bolts should not be reused. They are designed for single use to guarantee a proper seal and correct torque retention. Fitting fresh genuine parts means you avoid leaks, weeping fluid and the risk of bolts loosening over time.

What’s in the kit

• New sealing washers and o-rings for the Haldex unit
• Replacement single-use bolts at the correct specification

Why use genuine parts

As an authorised retailer, we only supply genuine VAG components for service work like this. The seals are made to the exact tolerances required by the Haldex housing, and the bolts are produced to the correct grade for the specified torque. Using anything less risks oil leaks or, worse, damage to the Haldex casing.

When you’ll need it

This kit is used as part of a Haldex service, typically alongside a fresh Haldex oil change and filter replacement. It’s a service item often overlooked, but skipping it is false economy when the cost of new seals is small compared with putting right a leaking unit.

This kit fits a wide range of popular Haldex-equipped VAG vehicles, including 4MOTION, quattro (transverse), 4Drive and similar all-wheel-drive models. Please use the vehicle lookup at the top of the page, or check the Vehicle Fitment tab, to confirm this is the correct kit for your car.

Complete the job properly

For the full service, pair this seal and bolt kit with the matching Haldex oil and filter. If you’d prefer everything in one go, take a look at the Halex Service Package available on the Racingline Shop.

Applications

Please note, customers are wholly responsible for checking fitment for their vehicle.