31 12 004 Removing and installing/replacing bottom left or right control arm (AWD Vehicle)

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NOTE: If the lower wishbone is detached from the front axle support, it is necessary after installation to carry out a wheel alignment . See 32 00 150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION or 32 00 155 KDS WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD .

Necessary preliminary work:

Remove FRONT WHEEL .
REMOVE STEERING BOX COVER AT SIDE BOTTOM .

Release nut (1) and remove screw.

Tightening torque 31 12 7AZ .

Release spring strut shock absorber from control arm.

Installation note:

Note direction of insertion of screw.

Replace screw and nut.

Tighten down screw connection in NORMAL POSITION .

Slacken nut (2).

Tightening torque 31 12 8AZ .

Release lower wishbone/wheel control joint from swivel bearing.

Installation note:

Replace self-locking nut.

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

Adhere to the assembly sequence.

Fig 1: Identifying Lower Wishbone/Wheel Control Joint From Swivel Bearing And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) and remove screw.

Tightening torque 31 12 3AZ

Remove wishbone (2).

Installation note:

Note direction of insertion of screw.

Replace screw and nut.

Tighten down screw connection in NORMAL POSITION .

Fig 2: Identifying Wishbone And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Replace wheel control joint at wishbone.

After installation:

Carry out wheel alignment procedure . See 32 00 150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION or 32 00 155 KDS WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD .