Remove/install rear suspension strut

AR32.25-P-1016RA

Remove/install rear suspension strut

21.10.11

 

Remove/install

 Danger!

Risk of injury caused by body parts being jammed or crushed. Risk of injury to skin and eyes caused by brake fluid spraying out at high pressure when working on the SBC brake system

Deactivate SBC brake system using STAR DIAGNOSIS.

AS42.46-Z-0001-01A

 Danger!

Risk of death caused by vehicle slipping or toppling off of 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



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



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

1

Deactivate SBC brake system using STAR DIAGNOSIS.

 The following steps should be run through in STAR DIAGNOSIS:

Select menu item "SBC Sensotronic Brake Control"/"Deactivate 'SBC' system".

Then process all the individual steps from top to bottom.

2

Remove side paneling in trunk

AR68.30-P-4800R

3

Unscrew nuts (1)



*BA32.25-P-1004-04B

4

Remove rear wheel



Remove/install wheels

AP40.10-P-4050Z

5

Remove bolts (4a) and detach brake caliper (4) from wheel carrier

 Hang up brake caliper (4) to relieve the load on the brake hose. Brake hose may otherwise be damaged.

AR42.10-P-0080R



*BA42.10-P-1004-12B

6

Remove the cover of the spring control arm (9)

7

Raise the wheel carrier using the transmission jack and transmission platform until the rear axle shaft is horizontal

8

Loosen the camber strut bolted connection (2) on the wheel carrier

 Installation: The rear axle shaft must be horizontal when tightening the bolt.



*BA35.20-P-1002-02C

9

Loosen the thrust arm bolted connection (3) on the wheel carrier

 Installation: The rear axle shaft must be horizontal when tightening the bolted connection.



*BA35.20-P-1002-05C

10

Remove the link rod bolted connection (11) of the stabilizer bar (7) to wheel carrier



*BA32.20-P-1001-04G

11

Remove torque strut bolted connection (5) to wheel carrier

 Installation: The rear axle shaft must be horizontal when tightening the bolted connection.



*BA35.20-P-1002-03C

12

Remove tie rod bolted connection (8) on wheel carrier

 Installation: The rear axle shaft must be horizontal when tightening the bolted connection.



*BA35.20-P-1001-04C

13

Remove spring control arm bolted connection (10) on wheel carrier

 Installation: The rear axle shaft must be horizontal when tightening the bolted connection.



*BA35.20-P-1004-01A

14

Remove suspension strut bolted connection (9a) on spring control arm (9), swivel spring control arm (9) downwards and remove suspension strut (6)



*BA32.25-P-1005-04B

15

Install in the reverse order

16

Activate SBC brake system using STAR DIAGNOSIS

 The following steps should be run through in STAR DIAGNOSIS:

Select "Initial startup after repair"/"Remove/install brake pads" menu item.

Then process all the individual steps from top to bottom.

17

Aligning rear axle

AR40.20-P-0200R

Number

Designation

Model
230 except code P99

BA32.25-P-1004-04B

Nut, rear suspension strut to body

Nm

20

BA32.25-P-1005-04B

Nut, rear strut to spring control arm

Nm

150

Number

Designation

Model
230.454/
456/458/
467/471/
475

BA42.10-P-1004-12B

Self-locking bolt of floating caliper to wheel carrier

Nm

115

Number

Designation

Model
230 except code P99

BA35.20-P-1002-02C

Self-locking nut, camber strut to wheel carrier.

Aluminum

M12

Stage 1

Nm

50

Stage 2

°

90

Steel

M14

Stage 1

Nm

80

Stage 2

°

90

Number

Designation

Model
230 except code P99

BA35.20-P-1002-05C

Self-locking nut, thrust arm to wheel carrier

Aluminum

M12

Stage 1

Nm

50

Stage 2

°

90

Steel

M14

Stage 1

Nm

80

Stage 2

°

90

Number

Designation

Model
230 except code P99

BA32.20-P-1001-04G

Nut, link rod to wheel carrier

Nm

50

Number

Designation

Model
230 except code P99

BA35.20-P-1002-03C

Self-locking nut, torque strut to wheel carrier

Aluminum

M12

Stage 1

Nm

50

Stage 2

°

90

Steel

M14

Stage 1

Nm

80

Stage 2

°

90

Number

Designation

Model
230

BA35.20-P-1001-04C

Self-locking nut, tie rod at wheel carrier

Stage 1

Nm

40

Stage 2

°

90

Number

Designation

Model
230 except code P99

BA35.20-P-1004-01A

Self-locking nut, spring control arm to wheel carrier.

Aluminum

M14

Stage 1

Nm

150

Stage 2

°

-

Steel

M14

Stage 1

Nm

80

Stage 2

°

90