31 21 090 Removing and Installing/Replacing Left or Right Swivel Bearing

31 21 090 Removing and installing/replacing left or right swivel bearing





Note:
If the swivel bearing is replaced, the wheel alignment \must be checked after assembly.





Necessary preliminary work:
^ Remove front wheel.





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

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

Tightening torque 31 60 2AZ

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.

Secure collar nut on flattened area (2) of output shaft by positive caulking.





Important!
To avoid damaging the anti-roll bar link, remove the anti-roll bar link from the stabilizer.

Remove brake disc.

Remove pulse generator from swivel bearing and expose line up to engine support.

Remove track rod end from swivel bearing.

Remove wishbone from wheel control joint.





Press swivel bearing (1) outwards and remove output shaft (2) from wheel bearing.





Detach brake hose from holder.





Important!
The connection must be tightened to the specified torque via the nut!

Support swivel bearing with workshop jack.

Slacken nut (2).

Tightening torque 31 31 3AZ

Pull out screw (1) and remove swivel bearing by pulling downward.

Installation note:
Keep swivel bearing to spring strut connection clean and free from oil and grease.

Bolt head points in direction of travel.

Replace screw and nut.





Replacement:
^ Modify wheel bearing
^ Modify brake anchor plate/protective plate.
^ Modify guide joint.





After installation:
^ Replacement only: Carry out wheel alignment procedure.