31 12 002 Removing and installing/replacing top left control arm
Special tools required:
- Underdimension variant
+ Overdimension variant
These camber correction arms are used to correct the camber values by 30 minutes. To be used only if the tolerance values are exceeded or undershot!
An unmarked control arm is a standard part.
Necessary preliminary tasks:
- Remove LEFT PARTITION WALL FOR EQUIPMENT COMPARTMENT
- Detach coolant expansion tank and place to one sideNOTE: Level switch can slip out of the coolant expansion tank in the process.
- Remove FRONT WHEELS
Unscrew nuts (1).
Installation:
Replace self-locking nuts.
Tightening torque 31 31 1AZ .
Slacken nut (1).
Remove jointed rod (2) from upper control arm (3).
Installation:
Replace self-locking nut.
Tightening torque 37 14 5AZ .
Secure special tool 31 5 220 to drive flange with wheel studs.
Support swivel bearing with special tool 31 5 220 and workshop jack.
Unfasten nut (1) and remove screw (2).
Installation:
Keep control arm to swivel bearing connection clean and free from oil and grease.
Note insertion direction of screw.
Screw must rest correctly in groove of ball stud.
Replace self-locking nut.
Tightening torque 31 12 6AZ .
Release nuts of screws (1).
Remove screws (1); if necessary, lower/raise swivel bearing and spring strut using workshop jack.
Remove control arm (2) from swivel bearing.
Installation:
Replace screws and nuts.
Set ride height at front left (right) to normal position (see 31 00 FRONT AXLE - RIDE HEIGHT E71 ) and tighten screw/bolt connection.
Tightening torque 31 12 5AZ .
After installation:
- Carry out RIDE-HEIGHT CALIBRATION