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

WARNING: This page is about a different car, the 2007 BMW 550i and 2006 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove SWIVEL BEARING

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

Clamp swivel bearing as illustrated.

Fig 1: Locating Swivel Bearing Clamping Position

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Release screws and remove swivel bearing upwards.

Fig 2: Locating Swivel Bearing Screws

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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 for specs.

Fig 3: Identifying Wheel Bearing Contact Surface And Tapped Holes

Courtesy of BMW OF NORTH AMERICA, INC.