Procedures

33 21 ... Pressing output shaft out of drive flange and drawing in





Necessary preliminary work:
^ Remove rear wheel.
^ Remove rear axle final drive.





Important!
Always place a new circlip on the output shaft reinstalling!





Important!
Expand anti-twist lock sufficiently to avoid damaging thread when releasing collar nut (1).

Activate parking brake and release collar nut (1).

Tightening torque 33 41 1AZ

Installation note:
Lightly oil gearing on shaft journal.

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

Renew collar nut (1) and secure by positive peening at flat areas of output shaft.





Use special tool, see 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 pressing out the output shaft:





The following tools are required to press out the output shaft from the drive flange, see graphic for arrangement:

Vehicle components:





Required components for all models and types:








^ Secure output shaft against falling out.
^ Press out output shaft with hydraulic unit.

The following work steps describe drawing in the output shaft:





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

Vehicle components:





Required components for all models and types:





Components specific to model and type (thread diameter, output shaft):








Draw in output shaft with hydraulic unit.

Tighten collar nut (1), activate parking brake for this purpose.

Tightening torque 33 41 1AZ.

Installation note:
Renew collar nut (1), apply a light coating of oil to collar nut contact surface and tighten.

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

Secure collar nut (1) by positive peening at flat areas of output shaft.