Wheel Bearing Assembly Overview

Wheel Bearing Assembly Overview






1 Suspension Strut

2 Tie Rod End

3 Bolt

• Bolt point must face in direction of travel.

4 Bolt

• 8 Nm

5 Left Front ABS Wheel Speed Sensor (G47) / Right Front ABS Wheel Speed Sensor (G45)

• Before inserting wheel speed sensor, clean inner surface of bore hole and coat with securing grease (G 000 650).

6 Cover Plate

7 Nut

• 20 Nm + 90° turn

• Self-locking

• Always replace if removed.

8 Bolt

• 10 Nm

9 Internally Vented Brake Disc

10 Bolt

• Various versions.

• For the correct allocation, refer to the Electronic Parts Catalog (ETKA).


• There are 2 types of twelve-point bolts, with and without ribs. Distinguishing characteristic, refer to => [ Differences Between a Twelve-Point Bolt with Ribs and a Twelve-Point Bolt without Ribs ].

• When installing a twelve-point bolt, always check what type of twelve-point bolt is to be used.

• Use the correct tightening specification for the specific bolt.

• The tightening specification for a twelve-point bolt with ribs is 70 Nm + 90° turn. For loosening and tightening specifications, refer to => [ Drive Axle Twelve-Point Bolt with Ribs, Loosening and Tightening ] Drive Axle Twelve-Point Bolt with Ribs, Loosening and Tightening.

• The tightening specification for a twelve-point bolt without ribs is 200 Nm + 180° turn. For loosening and tightening specifications, refer to => [ Drive Axle Twelve-Point Bolt with Ribs, Loosening and Tightening ] Drive Axle Twelve-Point Bolt with Ribs, Loosening and Tightening.

• Always replace if removed.

11 Bolt

12 Wheel Hub with Wheel Bearing

• Sensor ring for ABS is installed in wheel hub.

• Various versions.

• For the correct allocation, refer to the Electronic Parts Catalog (ETKA).

13 Wheel Bearing Housing

• Removing and installing, refer to => [ Wheel Bearing Housing ] Wheel Bearing Housing.

• With bolted brake carrier.

• If a wheel bearing housing is replaced, vehicle must then be aligned. Refer to => [ Wheel Alignment ] Wheel Alignment.

• For the correct allocation, refer to the Electronic Parts Catalog (ETKA).

14 Wheel Bearing Housing

• Removing and installing, refer to => [ Wheel Bearing Housing ] Wheel Bearing Housing.

• With integrated brake carrier.

• If a wheel bearing housing is replaced, vehicle must then be aligned. Refer to => [ Wheel Alignment ] Wheel Alignment.

• For the correct allocation, refer to the Electronic Parts Catalog (ETKA).

15 Bolt

• 70 Nm + 90° turn

• Always replace if removed.

16 Drive Axle

• Removing and installing, refer to => [ Drive Axle with CV Joint ] Drive Axle with CV Joint.

17 Nut

• 70 Nm + 90° turn

• Self-locking

• Always replace if removed.

Differences Between a Twelve-Point Bolt with Ribs and a Twelve-Point Bolt without Ribs





The contact surfaces - arrow A - and - arrow B - are different on the two-point bolts.

I Twelve-point bolt with ribs - arrow A -
II Twelve-point bolt without ribs - arrow B -