Control Arm Bushing: Service and Repair

31 12 046 Replacing Bracket (With Rubber Mount) For Left Or Right Control Arm







WARNING:
Risk of burning.
Wear gloves.







IMPORTANT: Rubber mounts must always be replaced in pairs (JOHN COOPER WORKS).







Necessary preliminary work:
- Remove control arm.







Mount control arm as pictured on press. Heat rubber mount with hot air blower.

NOTE: When pressing out the wishbone, ensure that the inner sleeve of the rubber mount does not remain on the wishbone pin.







Force control arm with press and a suitable tool out of rubber mount.
Replace rubber mount







IMPORTANT:
Bolt bracket and control arm to front axle carrier immediately.
Leave car for at least 30 minutes in unladen position and avoid spring deflections.
The lubricant takes 30 minutes to evaporate. The wishbone is fixed in the correct position in the rubber mount.
Non-conformance with these procedures could lead to serious impairment of handling.







Apply a generous coating of Circo Light (sourcing reference: BMW Parts Service) to control arm pin and inner sleeve of rubber mount.
Lay bracket on work surface of press.
Align control arm to bracket and press from above into rubber mount (up to stop).

NOTE: Gap between control arm and rubber mount is 6 ± 2 mm after installation.