Remove/install upper control arm

AR33.20-P-0500H

Remove/install upper control arm

15.2.12

14.9.06

Self-locking nut, upper wishbone follower joint to steering knuckle

*BA33.20-P-1001-01H

Self-locking nut of upper wishbone on front end

*BA33.20-P-1004-01H

 

Remove/install

 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



Notes on AIRmatic

AH32.22-P-1000-02H



When working on the upper transverse control arm (6) ensure that its surface does not get any scratches, cracks and notches. Otherwise the service life of the upper transverse control arm (6) will be reduced



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

 Installation

Tighten nuts and bolts of chassis components only when vehicle is in the ready-to-drive condition.

1

Hoist vehicle with lifting platform until wheels are free

2

Depressurize front suspension strut (40) using STAR DIAGNOSIS

3

Remove front wheel



Remove/install wheels, rotate if necessary

AP40.10-P-4050Z

4

Unscrew nut (1) and remove link rod (2) of level sensor from upper transverse control arm (6)



*BA82.10-P-1001-01A

5

Unscrew plastic nut (3) of fender liner

6

Secure steering knuckle (5) to the

suspension strut (40) with cable ties to prevent it from tipping away

 The brake hoses and electrical feed lines must not be subjected to tension.

7

Press follower joint (8) out of steering knuckle (5)

AR33.20-P-0500-01H



*BA33.20-P-1001-01H

 Thrust piece

*129589106300

 Tie rod puller

*240589033300

 Press

*163589034300

8

Remove charge air duct upstream of charge air cooler

AR09.41-P-8623H

Right upper transverse control arm

 Danger!

Risk of explosion caused by escaping oxyhydrogen gas. Risk of injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries caused by short circuit. Risk of poisoning caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices

No fire, sparks, open flames or smoking.

Wear acid-resistant gloves and clothing and safety glasses with side guards.

Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground.

Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers.

AS54.10-Z-0001-01A

9

Remove starter battery

AR54.10-P-0005HA



Notes on battery

AH54.10-P-0001-01A

10

Remove bolts (62a) and remove battery tray (62)



*BA54.10-P-1021-01C

11

Unscrew nut (6a) and detach upper transverse control arm (6) from front end

 To allow the bolt (6b) to be removed and installed: 

Align the upper transverse control arm (6) with the front end.

AR33.20-P-0500-05H



*BA33.20-P-1004-01H

12

Remove upper transverse control arm (6)

Left upper transverse control arm

13

Remove cover (63) of suspension strut tower

14

Lift up the support (51) of the Brake-Operating-Unit (50) at the front and swing to one side

 Installation: Insert the support (51) into the rubber mounts (51a).

15

Unscrew nut (6a) and detach upper transverse control arm (6) from front end

 To allow the bolt (6b) to be removed and installed: 

Align the upper transverse control arm (6) with the front end.

AR33.20-P-0500-05H



*BA33.20-P-1004-01H

16

Install in the reverse order

Number

Designation

Model 240

BA82.10-P-1001-01A

Nut, level sensor link rod to upper control arm

Nm

5

Number

Designation

Model
240

BA33.20-P-1001-01H

Self-locking nut, upper wishbone follower joint to steering knuckle

Stage 1

Nm

35

Stage 2

°

90

BA33.20-P-1004-01H

Self-locking nut of upper wishbone on front end

Stage 1

Nm

80

Stage 2

°

180

Number

Designation

Model
240

BA54.10-P-1021-01C

Bolt, battery bearing bracket to front end

Nm

20