31 21 088 Removing and installing left or right swivel bearing (all-wheel drive vehicle)

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove FRONT WHEEL .

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

Tightening torque 31 60 2AZ.

Fig 1: Identifying Collar Bolt

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Installation note:

Renew collar bolt (1) and compression spring (2).
Pay attention to direction of installation of compression spring!
Keep collar bolt and spur gearing of bearing/output shaft clean and free of grease.

IMPORTANT: See installation note on spur gear below.

Fig 2: Identifying Collar Bolt And Compression Spring

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IMPORTANT: Secure swivel bearing against falling out.

Remove BRAKE DISC .
Expose brake hose and cable on swivel bearing.
REMOVE pulse sensor from swivel bearing.

Fig 3: Identifying Swivel Bearing
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REMOVE lower wishbone from swivel bearing.
REMOVE trailing link from swivel bearing
REMOVE track rod end from swivel bearing.
REMOVE upper wishbone from swivel bearing.

Remove swivel bearing.

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.

Fig 4: Identifying Spur Gearing Of Bearing And Output Shaft Installed Position
Courtesy of BMW OF NORTH AMERICA, INC.
Once a form-fit has been ensured, tighten to final torque.
Tightening torque 31 60 2AZ.