Remove/install wheel carrier

AR35.20-P-0115W

Remove/install wheel carrier

31.8.11

 

Remove/install

 Danger!

Risk of death caused by vehicle slipping or toppling off the lifting platform.

Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.

AS00.00-Z-0010-01A



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

 While working on the rear axle care must be taken to ensure that the surfaces of aluminum components do not get any scratches, cracks and notches. Otherwise the service life of the of the parts will be reduced.

1

Raise vehicle with vehicle lift

AR00.60-P-1000V

2

Secure vehicle on vehicle lift

AR00.60-P-0100T

3

Detach left and right rear wheel

AP40.10-P-4050V

4

Detach twelve-point collar nut (40) from rear axle shaft (37)

 The vehicle must no longer be moved on its wheels when the twelve-point collar nut (40) has been loosened. The wheel bearings can otherwise be damaged.

AR35.30-P-0115-01TX

 Installation: Replace twelve-point collar nut (40).



*BA35.30-P-1001-01J

5

Remove left or right rear brake disk (61)

Model 172.475

Model 172 (except 172.475)

AR42.10-P-0220W

6

Detach left rear axle rpm sensor (L6/3) or right rear axle rpm sensor (L6/4) from wheel carrier (7)

7

Unclip electrical lines from wheel carrier (7)

 Danger!

Risk of injury caused by pinching or crushing when working on springs or spring bodies that are under tension

Use only approved tensioning devices; shield off hazard area if necessary.
Inspect special tools for damage and proper operation (visual inspection).
Wear protective gloves.

AS00.00-Z-0001-01A

8

Tension left or right rear spring

 Do not use an impact wrench.

AR32.20-P-0200-06CW

 Tensioning device

*202589023100

 Clamping plates

*211589036300



Springs; general background information.

AH32.20-P-9404-01A

9

Raise wheel carrier (7) with transmission jack and transmission platform until the rear axle shaft (37) is approximately horizontal

 Installation: Tighten the threaded connections of the thrust arm (5), camber strut (2) and strut rod (3) as well as of the tie rod (4) and spring control arm (6). Do not lower the wheel carrier (7) until these threaded connections have been tightened.



*BA35.20-P-1004-02A



*BA35.20-P-1004-03A



*BA35.20-P-1003-05A



*BA35.20-P-1001-04I



*BA35.20-P-1002-01G

Transmission jack

gotis://H_00.10_01.0

Passenger car transmission platform

gotis://A_25/35/49_02.0

10

Detach tie rod (4) from wheel carrier (7)

 Installation: Screw on the threaded connection only loosely.

11

Detach strut rod (3) from wheel carrier (7)

 Installation: Screw on the threaded connection only loosely.

12

Detach camber strut (2) from wheel carrier (7)

 Installation: Screw on the threaded connection only loosely.

13

Detach thrust arm (5) from wheel carrier (7)

 Installation: Screw on the threaded connection only loosely.

14

Check whether rear axle shaft (37) is firmly seated in rear axle shaft flange (8)

If the rear axle shaft (37) is difficult to remove:



Press rear axle shaft (37) out of rear axle shaft flange (8)

AR35.30-P-0115-03SX

 Bracket

*210589014000

 Extraction and insertion tool

*210589034300

15

Detach spring control arm (6) from wheel carrier (7)

 Installation: Screw on the threaded connection only loosely.

16

Remove wheel carrier (7) with brake cover plate (9) and wheel bearing (10) from rear axle shaft (37)

 Remove the wheel carrier (7) carefully. The rubber boot and the rotor for the left rear axle rpm sensor (L6/3) and right rear axle rpm sensor (L6/4) on the rear axle shaft (37) can otherwise be damaged.

17

Unscrew bolts (11) and remove wheel bearing (10) from wheel carrier (7)

When installing a new wheel bearing (10) and if the removed wheel carrier (7) is to be reused.

 The replacement wheel carrier (7) is supplied with installed wheel bearing (10).



*BA35.20-P-1001-06D

18

Detach brake cover plate (9) from wheel carrier (7)

When replacing the wheel carrier (7).

19

Install in the reverse order

20

Perform wheel alignment check

AR40.20-P-0200EW

Number

Designation

Model
172

BA35.20-P-1001-06D

Wheel bearing to wheel carrier

Nm

70

Number

Designation

Model
172

BA35.30-P-1001-01J

Collar nut, rear axle shaft to rear axle shaft flange

self-locking

Nm

350

not self-locking

Stage 1

Nm

-

Stage 2

°

-

Number

Designation

Model
172

BA35.20-P-1002-01G

Self-locking bolt, spring control arm to wheel carrier

Stage 1

Nm

60

Stage 2

°

90

Number

Designation

Model
172

BA35.20-P-1004-02A

Bolt, camber strut to wheel carrier

Stage 1

Nm

50

Stage 2

°

90

Number

Designation

Model
172

BA35.20-P-1004-03A

Nut, strut rod to wheel carrier

Stage 1

Nm

50

Stage 2

°

90

Number

Designation

Model
172

BA35.20-P-1001-04I

Self-locking nut, tie rod at wheel carrier

Stage 1

Nm

30

Stage 2

°

90

Number

Designation

Model
172

BA35.20-P-1003-05A

Self-locking nut, thrust arm to wheel carrier

Stage 1

Nm

50

Stage 2

°

90