Wheel Bearing Unit
Special tools and workshop equipment required
- Angle wrench V.A.G 1756
- Torque wrench V.A.G 1332
- Vehicle Diagnostic, Testing and Information System VAS 5051B
Removing
-- Remove drive axle. Refer to DRIVE AXLE, BOLTED INNER JOINT , DRIVE AXLE WITH CV JOINT, INSERTED INNER JOINT , DRIVE AXLE WITH TRIPLE ROLLER JOINT AAR 3300I, MOUNTED ON TRANSMISSION STUB SHAFT or DRIVE AXLE WITH TRIPLE ROLLER JOINT AAR 3300I, INSTALLED IN TRANSMISSION .
-- Remove the brake caliper and secure it to the body using wire. Refer to Removal and Installation .
-- Remove the ABS speed sensor. Refer to Removal and Installation .
-- Remove disc brake.
-- Remove bolts -arrows-.
-- Remove wheel bearing unit from wheel bearing housing.
- 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
Installation is the reverse of removal, with special attention to the following:
Tightening specifications, refer to WHEEL BEARING HOUSING AND WHEEL BEARING UNIT ASSEMBLY OVERVIEW .
Tightening specifications, refer to SUBFRAME, STABILIZER BAR, TRANSVERSE LINK, BALL JOINT, AND LEVEL CONTROL SYSTEM SENSOR ASSEMBLY OVERVIEW .
-- Replace locking element after each removal.
-- Align nuts -arrows- according to markings made earlier and tighten.
-- Tighten drive axle to wheel hub threaded connection.
Hex bolt, refer to HEX BOLT BETWEEN DRIVE AXLE AND WHEEL HUB, LOOSENING AND TIGHTENING .
12-point bolt, refer to 12-POINT BOLT BETWEEN DRIVE AXLE AND WHEEL HUB, LOOSENING AND TIGHTENING .
-- On vehicles with electronically-controlled damping (Audi magnetic ride), reprogram control position using VAS 5051B.
-- On vehicles with automatic headlamp range control, perform headlamp basic setting. Refer to [For transmission(s) 02E] [For engine(s) CBRA, BPY, CETA, CCTA, CEPB, CDMA] Diagnosis and Testing .
-- Vehicle alignment required, see table. Refer to WHEN WHEEL ALIGNMENT IS NECESSARY .