Rear Knuckle: Service and Repair

33 32 131 Removing and installing / replacing a steering stub / wheel carrier





Necessary preliminary work:
^ Deactivate and empty air spring system
^ Remove rear wheel.





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

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

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

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

Tightening torque 33 41 1AZ.

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





Remove parking brake shoe expander (only F07).

Remove parking brake Bowden cable from wheel carrier (only F07).

Remove pulse sensor from wheel carrier.





Important!
^ Check sensor head and line from pulse sensor prior to installation for external damage, replacing if necessary.





Important!
Secure wheel carrier against falling out.

Remove integral link from wheel carrier.

Remove toe arm from wheel carrier.

Remove upper wishbone from wheel carrier.

Remove wheel carrier.

Replacement:
Modify wheel bearing

Modify brake anchor plate/brake guard plate





After installation:
^ Activate and fill air suspension system
^ Adjust parking brake (only F07)
^ Replacement only: Perform chassis / wheel alignment check