31 21 180 Replacing Bearing (Wheel Bearing) For Front Wheel

31 21 180 Replacing bearings (wheel hub) for front wheel







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.







Remove brake disc.
Remove pulse generator from swivel bearing







Release screws (1) and remove bearing from output shaft.
Tightening torque 31 21 1AZ.







Installation note:
- Replace screws.
- Keep contact surface (2) of wheel bearing and swivel bearing clean and free from grease.