31 12 004 Removing and Installing/Renewing Left or Right Lower Control Arm

31 12 004 Removing And Installing/Renewing Left Or Right Lower Wishbone

Special tools required:







IMPORTANT:
- With vehicles F01, F02 and F07 up to version 02/2010, only renew wishbones in pairs.
- Read and comply with BMW Parts Department notes.
- If the lower wishbone is detached from the front axle support, it is necessary after installation to carry out a wheel alignment.







Necessary preliminary tasks:
- Remove front wheel.
- Remove cover from the steering box.
- Remove gaiter from steering box.







Release nut (1) and remove screw.
Tightening torque 31 12 7AZ.
Release spring strut from wishbone (2).

Installation note:
Note direction of insertion of screw.
Replace screw and nut.
Tighten down screw connection in normal position.







Release screw (1) and remove wishbone (2) from front axle support.
Tightening torque 31 12 3AZ

Installation note:
Note direction of insertion of screw.
Replace screw and nut.
Tighten down screw connection in normal position.







IMPORTANT:
Do not release wishbone from swivel bearing with impact tool.
The swivel bearing must be removed if the steel bushing moves.
Rubber boot of wishbone must not be damaged.
Do not pull stainless steel ring off journal.







Release nut (1) and remove wishbone (2) from swivel bearing.
Tightening torque 31 12 4AZ.

Installation note:
Replace self-locking nut.
Keep wishbone to swivel bearing connection clean and free from oil and grease.







After installation:
- Carry out wheel alignment procedure.

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