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

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.

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 .

Replacement:

• Replace wheel control joint at wishbone.
  Fig 2: Identifying Wishbone Nut

  Courtesy of BMW OF NORTH AMERICA, INC.

After installation: 

• Carry out wheel alignment procedure. Carry out wheel alignment procedure. See ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION or ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT (WITHOUT VEHICLE LOAD) .