BMW X3 Service & Repair Manual: Replacing bearing for front wheel

Necessary preliminary tasks:

• Remove FRONT WHEEL .

If necessary, remove visual protection cap (1).

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

Installation note:

• Renew collar bolt (1) and compression spring (2).
• Pay attention to installation position of compression spring (2).
• Keep collar bolt and spur toothing of bearing/propeller shaft clean and free of grease
• Follow installation note of the spur gearing.

Remove BRAKE DISC .

NOTE:

• Check brake pad and replace if necessary!

Press output shaft on swivel bearing to one side slightly and release screws (1).

Remove bearing.

Installation note:

Replace screws.

Keep contact surface (2) of wheel bearing and swivel bearing clean and free from grease.

IMPORTANT: Note on installation for spur gearing must be observed without fail!

Installation note:

• Spur gearing of bearing (1) and output shaft (2) must be installed form-fit (tooth in tooth)!
• Tighten collar bolt and compression spring by hand.
• Check whether spur gearing is locked tooth in tooth by reciprocally rotating wheel hub/output shaft.
• Once a form-fit has been ensured, tighten to final torque.