Wheel Bearing Assembly Overview

Wheel Bearing Assembly Overview






1 Wheel Bearing Housing (3-Point Mount) - FS III Brake

• 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).

2 Wheel Hub with Wheel Bearing (3-Point Mount) - FS III Brake

• Removing and installing, refer to => [ Wheel Bearing Unit, 3-Point Mount ] Wheel Bearing Unit, 3-Point Mount.

• Sensor ring for ABS is installed in wheel hub.

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

3 Suspension Strut

4 Bolt

• Bolt point must face in direction of travel.

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

• Can be checked in Guided Fault Finding using the vehicle diagnosis, testing and information system (VAS 5051B).

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

6 Bolt

• 8 Nm

7 Tie Rod End

8 Cover Plate

9 Bolt

• 10 Nm

10 Nut

• 20 Nm + 90° turn

• Self-locking

• Always replace if removed.

11 Wheel Bearing Housing (4-Point Mount) - FS III Brake

• 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).

12 Internally Vented Brake Disc

13 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.

• 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°. 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°. 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.

14 Bolt

15 Wheel Hub with Wheel Bearing (4-Point Mount)

• Removing and installing, refer to => [ Wheel Bearing Unit, 4-Point Mount ] Wheel Bearing Unit, 4-Point Mount

• Sensor ring for ABS is installed in wheel hub.

• Various versions.

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

16 Wheel Bearing Housing (4-Point Mount) - FN3 Brake

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

• With fastened 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).

17 Bolt

• 70 Nm + 90° turn

• Always replace if removed.

18 Drive Axle

• Removing and installing, refer to => [ Drive Axle with CV Joint ] Drive Axle With CV Joint, => [ Left Drive Axle with Mounted CV Joint ] Left Drive Axle With Mounted CV Joint, => [ Right Drive Axle with Mounted CV Joint ] Right Drive Axle With Mounted CV Joint, => [ Drive Axle with Tripod Joint AAR3300i ] Drive Axle with Tripod Joint AAR3300i.

19 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 -.