31 12 000 Removing And Installing/Replacing Left Or Right Control Arm

WARNING: This page is about a different car, the 2010 BMW M5, 2009 BMW M5, 2008 BMW M5, 2007 BMW M5, and 2006 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If the control arm is detached from the front axle carrier, it is necessary after reinstallation to carry out a wheel/chassis alignment check.

Necessary preliminary tasks:

If necessary, remove steering gear cover at side

Right side only on version with xenon headlight:

Release nut (jointed rod on control arm).

Remove jointed rod (1) from control arm.

Disconnect plug connection (2) on ride-height sensor.

Fig 1: Identifying Jointed Rod From Control Arm

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nut (1).

Remove screw towards rear.

Only on right side: If necessary, remove holder with ride-height sensor.

Installation:

Replace self-locking nut.

Tightening torque, see 31 12 2AZ in 31 12 CONTROL ARMS AND STRUTS .

Release nut (2); if necessary, grip at Torx socket.

Take off control arm.

Fig 2: Identifying Self-Locking Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Keep control arm to swivel bearing connection clean and free from oil and grease.

Replace self-locking nut.

Tightening torque, see 31 12 6AZ in 31 12 CONTROL ARMS AND STRUTS .

After installation:

Perform chassis alignment check
Carry out steering angle sensor adjustment/adjustment for active front steering