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 40-200 Nm (V.A.G 1332)
• Torque Wrench (V.A.G 1410)
• Grease
Removing
- Remove the rear wheel.
- Loosen the cap by lightly tapping on the grease cap puller (VW 637/2) - 1 -.
- Pry off the cap using the grease cap puller (VW 637/2) - 1 -.
- Loosen the wheel bearing unit bolt.
- Remove the brake caliper and brake rotor from the wheel bearing housing. Guide them past the suspension and secure them to the body.
• Secure the removed brake caliper to the body so that the weight of the caliper does not stress or damage the brake hose or brake line.
• Do not press the brake pedal whenever the brake caliper is removed.
- Remove the bolts - 1 - from the brake shield - 2 -.
- Reach behind the front seal - arrow -. Remove the wheel bearing unit (not illustrated) over the front seal - arrow -.
• Do not pull the wheel bearing off by the outer race (wheel hub).
• 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.
• 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 -.
Installing
Install in reverse order of removal. Note the following:
Tightening specifications, refer to => [ Wheel Bearing Housing and Wheel Bearing Unit Overview, FWD ] Wheel Bearing Housing and Wheel Bearing Unit Overview, FWD.
- Clean the front seal.
- Install the front seal and grease the stub axle - arrow - lightly with grease.
- Install the brake caliper and brake disc.
- Install a new cap with the seal installer (3241/4) - 1 -.
• Always replace a damaged cap.
• Damaged caps allow moisture to get in. Therefore, always use the tool shown.
- Install the brake caliper and brake disc.
- Tighten the wheel bearing unit bolt.
- Install the rear wheel.