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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1297 (Front Axle - Repair Instructions) >> 21 Wheel Bearings and Stub Axle >> 31 21 180 Replacing Bearings (Wheel Hub) For Front Wheel

31 21 180 Replacing Bearings (Wheel Hub) For Front Wheel

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Necessary preliminary tasks: 

IMPORTANT: When clamping swivel bearing unit, make sure it is only clamped at wheel bearing.

Clamp swivel bearing.

Fig 1: Locating Clamping Swivel Bearing Unit
G04742353Courtesy of BMW OF NORTH AMERICA, INC.

Release screws and remove swivel bearing upwards.

Fig 2: Locating Swivel Bearing
G04742354Courtesy of BMW OF NORTH AMERICA, INC.

Keep tapped holes (1) clean and free from grease.

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

Installation: 

If the wheel bearing is not replaced, all the tapped holes (1) in the wheel bearing must be reconditioned.

Replace screws.

Tightening torque 31 21 5AZ.  . See 31 21 WHEEL BEARINGS AND STEERING KNUCKLE

Fig 3: Identifying Contact Surface & Tapped Holes
G04742355Courtesy of BMW OF NORTH AMERICA, INC.