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

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Bearing cannot be dismantled.
Do not wash out bearing.

Remove front wheel.

IMPORTANT: Expand turning lock sufficiently to avoid damaging thread when releasing collar nut.

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

Installation:

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. See FRONT AXLE - TIGHTENING TORQUES .

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

Fig 1: Locating Collar Nut

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Remove brake disk . See 34 11 220 REMOVING AND INSTALLING/REPLACING BOTH FRONT BRAKE DISCS .

Release screw (1) and pull pulse generator out of bore.

Installation:

Clean bore for pulse generator and lubricate with Staburags NBU 12/K grease.

Tightening torque. See BRAKES - TIGHTENING TORQUES .

Release screws (2) and remove holder from swivel bearing.

Fig 2: Identifying Screws

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NOTE: Output shaft has been removed only for the purpose of creating the picture.

Release bolts (1) and remove wheel bearing.

Installation:

Replace screws.

Tightening torque. See FRONT AXLE - TIGHTENING TORQUES .

Fig 3: Identifying Wheel Bearing Nuts

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IMPORTANT: Do not damage inner race (1) of wheel bearing.

Detach wheel bearing from output shaft (refer to PRESSING OUTPUT SHAFT OUT OF DRIVE FLANGE ).

Installation:

Keep contact surface of swivel bearing and wheel bearing clean and free from oil and grease.

Fig 4: Identifying Inner Race Of Wheel Bearing

Courtesy of BMW OF NORTH AMERICA, INC.