Wheel Hub: Service and Repair

33 41 000 Replacing drive flange on left/right rear axle shaft





Necessary preliminary work:
^ Remove rear wheel.





Important!
Expand anti-twist lock sufficiently to avoid damaging thread when releasing collar nut.

Activate parking brake and release collar nut.

Tightening torque 33 41 3AZ.

Installation note:
Replace collar nut, oil collar nut/wheel bearing contact surface lightly and tighten down.

No oil permitted on thread of shaft journal or collar nut.

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





^ Remove brake disc





Twist roll pins (1) 90° with special tool 34 4 000 and detach.

Only disconnect return spring (2) with brake spring pliers.

Remove brake pads (3).

Note: the fitted position of the adjusting screw must not be changed or turned.





Use the special tool from the BMW workshop catalogue.
- Hydraulic unit - 81 64 2 155 744
- Adapter kit 1 - 81 64 2 155 745
- Adapter kit 2 - 81 64 2 155 746

The following work steps describe detachment of the drive flange:





The following tools are required to pull out the drive flange from the wheel bearing, see graphic for arrangement:





Vehicle components:





Required components for all models and types:





Components specific to model and type:





^ Pull out drive flange using the hydraulic tool

Important!
Wheel bearing will be destroyed by being pulled out of the drive flange and must be renewed!

The following work steps describe drawing in the drive flange:





The following tools are required to fit the drive flange, see graphic for arrangement:

Installation note:
The drive flange and output shaft can be installed in the wheel bearing in one operation.





Vehicle components:





Required components for all models and types:





Components specific to model and type:





^ Oil drive flange lightly and attach to the output shaft gearing.
Use a hydraulic tool to draw in the drive flange





Fit parking brake shoes (F01 F02 F03 F04 F07 only).

Install brake disc.

Activate parking brake and tighten down collar nut.

Tightening torque 33 41 3AZ.

Installation note:
Replace collar nut.

No oil permitted on thread of shaft journal or collar nut.

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





After Installation note:
Only for F01, F02, F03, F04, F07:
^ Adjusting parking brake