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

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Special tools required:

31 2 240
31 2 241
31 2 242
31 2 243
31 2 244
31 2 245
31 2 246

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.

After installation:

Perform chassis alignment check
Carry out steering angle sensor adjustment

Necessary preliminary tasks:

Remove front wheel

Release nut (1) and remove screw towards front.

Installation:

Replace self-locking nut.

Tightening torque 31 12 2AZ .

Fig 1: Identifying Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) approx. 3-4 thread turns; if necessary, grip hexagon.

If necessary, replace special tool lower section 31 2 242 with lower section 31 2 246.

Press control arm off swivel bearing with special tool 31 2 240 (comprising 31 2 241, 31 2 243, 31 2 244, 31 2 245 and 31 2 246).

Unscrew nut (1) and remove control arm.

Installation:

Keep journal on ball head and bushing in swivel bearing clean and free from grease.

Replace self-locking nut.

Tightening torque 31 12 6AZ .

Fig 2: Identifying Special Tool (31 2 240) And (31 2 246)

Courtesy of BMW OF NORTH AMERICA, INC.