31 12 000 Removing and installing/replacing left or right control arm

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2008 BMW 335i, 2008 BMW 328i, 2008 BMW 323i, 2007 BMW 335i, and 2007 BMW 328i. 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:

Remove Front Wheels
Remove Front Assembly Underside Protection

If necessary, remove jointed rod of ride-height sensor from control arm.

Fig 1: Locating Front Control Arm Clamp

G04726259

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1); if necessary, grip at Torx socket (T40).

Installation:

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

Replace self-locking nut.

For tightening torque refer to 31 12 4AZ in 31 12 CONTROL ARMS AND STRUTS .

Fig 2: Identifying Nut

G04726260

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nut (1).

If necessary, remove bracket (2) with ride-height sensor.

Remove bolt towards front and remove control arm.

Installation:

Note insertion direction of screw.

Replace self-locking nut.

Tighten bolt connection in Normal Position .

For tightening torque refer to 31 12 3AZ in 31 12 CONTROL ARMS AND STRUTS .

Fig 3: Identifying Bracket And Nut

G04726261

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Perform Chassis Alignment Check
Carry out Steering Angle Sensor Adjustment/Adjustment For Active Front Steering