31 12 050 Removing and installing/replacing left or right tension strut (AWD)

Necessary preliminary tasks:

• Remove FRONT WHEEL .

If necessary, remove visual protection cap (1).

Release collar bolt (1), press brake pedal to floor for this purpose.

Installation note: 

• Renew collar bolt (1) and compression spring (2).
• Pay attention to installation position of compression spring (2).
• Keep collar bolt and spur toothing of bearing/propeller shaft clean and free of grease
• Follow installation note of the spur gearing.
  Fig 3: Identifying Collar Bolt And Compression Spring

  Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

• Spur gearing of bearing (1) and output shaft (2) must be installed form-fit (tooth in tooth)!
• Tighten collar bolt and compression spring by hand.
• Check whether spur gearing is locked tooth in tooth by reciprocally rotating wheel hub/output shaft.
  Fig 4: Fitting Bearing Spur Gears With Output Shaft

  Courtesy of BMW OF NORTH AMERICA, INC.
• Once a form-fit has been ensured, tighten to final torque.

  Tightening torque 31 60 2AZ .

Release screws (1) and remove cover (2).

(Left side: Release connector from outside temperature sensor.)

Release screw (1).

Tightening torque 31 12 1AZ .

Installation note: 

Replace screw.

Tighten down screw connection in NORMAL POSITION .

Slacken nut (1).

• If necessary, hold up at the Torx socket.

Tightening torque 31 12 2AZ .

Installation note: 

Replace self-locking nut.

Keep tension strut to swivel bearing connection clean and free from oil and grease.

Turn the steering to the respective side (right side to the right, left side to the left).

Pivot output shaft upwards.

Remove trailing link (1).