Wheel Bearing Housing (Steel)

Hub carrier/wheel bearing housing (steel), removing and installing

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
^ Socket T40027

Removing
- Remove wheel trim; pull trim cap off light-alloy wheels, (using puller in vehicle tool kit).

Front wheel drive vehicles

Note:
^ If you do not intend to replace wheel bearing unit, do not remove collared nut and dust cap.

- Remove wheel.





- Tap gently to detach dust cap from its seat.





- Pry off dust cap.
- Install wheel and lower vehicle onto its wheels.

Continued for all vehicles





- Loosen collared bolt - arrow - only 90°, otherwise wheel bearing will be damaged.

CAUTION: The vehicle must be standing on its wheels when loosening and tightening the collared bolt. - Risk of Accident -

- Remove wheel.
- Secure brake disc with one wheel bolt.





- Remove brake caliper - arrows -. Use socket T40027.

Note:
^ Secure brake caliper to body with wire.
^ Do not suspend the brake caliper from the brake hose.

- Remove brake disc.
- Remove coil spring





- Remove collared bolt - 1 -
- Remove splash plate - 3 -

Front wheel drive vehicles





- Remove wheel bearing unit - 2 -

Note:
^ If the wheel bearing unit can be pulled off the hub carrier by hand, it is OK and does not have to be replaced.

Continued for all vehicles





- Remove speed sensor - 2 -.
- Using a felt-tip pen or similar, mark position of eccentric bolt - 1 - on top of hub carrier/wheel bearing housing.
- Remove the illustrated bolt connections in the following sequence: item 5, item 3, item 4, item 1.
- Remove hub carrier or wheel bearing housing.

Note:
^ On vehicles with all wheel drive, carefully press off drive. axle.

Installing

Note:
^ Replace bolts and self-locking nuts [] instructions in exploded views.

Bonded rubber bushings can only be turned to a limited extent. The mountings of the suspension links must only be tightened when the suspension is in curb weight position.

Front wheel drive vehicles
- Install new wheel bearing unit if necessary.





Continued for all vehicles
- Tighten bolt connections - 1 - , - 3 -, - 4 - and - 5 - .
- Fasten wheel speed sensor - 2 - (front wheel drive) or (all wheel drive).
- Bolt splash plate and brake caliper onto hub carrier or wheel bearing housing.

All wheel drive vehicles
- Install 5 wheel bolts hand-tight and apply parking brake firmly.





Continued for all vehicles
- Tighten collared bolt - 1 - initially to specified torque, without turning further (turn bolt through specified angle at a later time when vehicle is standing on its wheels) (front wheel drive) or (all wheel drive).
- Install coil spring.
- Install wheel and tighten

Tightening torques:
- Tighten collared bolt - 1 - , Fig. A42-0250 by turning through specified angle, (front-wheel drive) or (four-wheel drive).

Vehicles with front-wheel drive
- Remove wheel.





- Drive in new grease cap.
- Install wheel and fasten.

Note:
^ Always replace damaged (dented) dust caps.
^ Damaged (dented) dust caps may allow moisture to enter the bearing. For this reason it is important to use the tool shown in the illustration.

Continued for all vehicles
- Check wheel alignment.
Wheel alignment must be performed on wheel alignment equipment recommended by Audi.