33 32 131 Removing and Installing/Replacing a Steering Knuckle/Wheel Carrier

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IMPORTANT: Observe safety instructions on raising the vehicle. See 00..... LIFTING VEHICLE WITH A LIFTING PLATFORM

Activate parking brake.

Remove rear wheel . See 36 10 300 REMOVING OR INSTALLING FRONT OR REAR WHEEL

Deactivate air spring system . See 37 00 100 DRAINING/FILLING AIR SPRING SYSTEM

Unscrew collar nut.

Deactivate parking brake.

Installation:

Replace collar nut, apply a light coating of oil to contact surface and tighten down.

Tightening torque 33 41 1AZ . See 33 41 WHEEL BEARINGS

Secure collar nut by peening on flat areas of output shaft.

Fig 1: Locating Collar Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Remove rear brake disc . See 34 21 320 REMOVING AND INSTALLING OR REPLACING BOTH REAR BRAKE DISCS

Disengage Bowden cable for parking brake at brake shoe expander . See 34 41 135 REMOVING AND INSTALLING OR REPLACING BOTH BOWDEN CABLES FOR PARKING BRAKE

Replacement only: Drive out drive flange for rear axle shaft See 33 41 000 REPLACING DRIVE FLANGE ON LEFT/RIGHT REAR AXLE SHAFT

Remove pulse generator . See 34 52 535 REPLACING A REAR PULSE GENERATOR

Remove stabilizer link from swinging arm . See 33 55 040 REPLACING STABILIZER LINK FOR REAR LEFT OR RIGHT STABILIZER

Remove spring strut/air spring strut from wheel carrier . See 37 12 070 REMOVING AND INSTALLING/REPLACING REAR LEFT OR RIGHT AIR SPRING STRUT

Remove integral link. See 33 32 051 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT PUSH ROD/INTEGRAL LINK

Press output shaft out of drive flange. See 33 21... PRESSING OUTPUT SHAFT OUT OF DRIVE FLANGE AND DRAWING IN (OUTPUT SHAFT REMOVED FROM REAR DIFFERENTIAL)

Remove guide arm from wheel carrier. See 33 32 091 REPLACING A GUIDE ARM

Remove control arm from wheel carrier and remove wheel carrier. See 33 32 071 REPLACING ONE UPPER CONTROL ARM

Replacement:

Modify brake carrier/brake guard plate See 34 21 171 REMOVING AND INSTALLING/REPLACING A BRAKE CARRIER/BRAKE GUARD AT REAR
Install new wheel bearing See 33 41 151 REPLACING LEFT OR RIGHT WHEEL BEARING ON REAR AXLE SHAFT
Modify or replace drive flange See 33 41 000 REPLACING DRIVE FLANGE ON LEFT/RIGHT REAR AXLE SHAFT

After installation:

Version with ride-height control: activate air spring system See 37 00 100 DRAINING/FILLING AIR SPRING SYSTEM
Adjusting parking brake See 34 41 006 ADJUSTING PARKING BRAKE
Perform chassis alignment check See 32 00 ... TROUBLESHOOTING AFTER WHEEL/CHASSIS ALIGNMENT CHECK ON REAR AXLE