Wheel Bearing Unit

Wheel Bearing Unit

Special tools, testers and auxiliary items required

• Grease cap puller (VW 637/2)

• Fitting sleeve (3241/4)

• Torque wrench (V.A.G 1332)

• Torque wrench (V.A.G 1410)

• Grease

Removing

- Place the vehicle on a hoist.

- Loosen the dust cap by lightly tapping on the (VW 637/2).






- Pry the dust cap off using the (VW 637/2).






- Loosen the wheel bearing unit collar bolt, but only when the vehicle is resting on its wheels. Refer to => [ Threaded Connection Between Drive Axle and Wheel Hub, Loosening and Tightening ] Procedures.

- Remove the wheel.

- Remove brake caliper and brake disc.

- Secure the brake caliper to the body so that the weight of the caliper does not stress or damage the brake hose or brake line.

- Remove the bolts - 1 - from the brake shield - 2 -.






• Do not pull the wheel bearing off by the outer race (wheel hub).

- Remove the wheel bearing unit - 2 - over the brake shield - 1 - and from the stub axle - 3 -.






• If the wheel bearing unit can be removed from the wheel bearing housing by hand, the wheel bearing unit is OK and can be reinstalled.

- Reach behind the front seal - arrow - when the stub axle has been freed up enough. Remove the wheel bearing unit and the brake shield (both not shown in the illustration) over the front seal - arrow -.






• Avoid contaminating with dirt and damaging the seal when setting down/storing.

The wheel bearing - 1 - must always face up.






- Always set the wheel bearing unit down on the wheel hub - 2 -.

- Clean the front seal.

Installing

Install in reverse order of removal. Note the following:

Tightening specifications, refer to => [ Wheel Bearing Housing, Wheel Bearing Unit and Coil Spring Shock Absorber Overview, FWD ] Wheel Bearing Housing, Wheel Bearing Unit and Coil Spring Shock Absorber Overview, FWD.

- Install the front seal and grease the stub axle - arrow - lightly with grease.






- Install the brake caliper and disc.

• Damaged (dented) protective cap must be replaced.

• A damaged (dented) protective cap allows moisture to enter. Therefore, always use the tool shown.

- Install the protective cap using the (3241/4).






- Install wheel.

- Tighten wheel.

- Tighten the wheel bearing unit collar bolt, but only when the vehicle is resting on its wheels. Refer to => [ Threaded Connection Between Drive Axle and Wheel Hub, Loosening and Tightening ] Procedures.