Necessary preliminary tasks

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

Remove FRONT WHEEL .

IMPORTANT: Expand anti-twist lock sufficiently to avoid damaging thread when releasing collar nut.

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

Tightening torque 31 21 2AZ .

Installation note:

Replace collar nut, oil collar nut/wheel bearing contact surface only and tighten down.

Fig 1: Locating Collar Nut

Courtesy of BMW OF NORTH AMERICA, INC.

No oil permitted on thread of shaft journal or collar nut.

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

Remove BRAKE DISC .

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

Tightening torque 34 51 3AZ .

Installation note:

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

Fig 2: Identifying Pulse Sensor Screw And Holder Screws

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Release bolts (1) and remove wheel bearing.

Tightening torque 31 21 1AZ .

Installation note:

Replace screws.

Fig 3: Identifying Wheel Bearing Bolts

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Use special tool, see BMW Workshop Catalogue .

Hydraulic unit - 81 64 2 155 744
Adapter kit 1 - 81 64 2 155 745
Adapter kit 2 - 81 64 2 155 746

The following work steps describe pressing out the output shaft / wheel bearing:

Fig 4: Pressing Out Output Shaft / Wheel Bearing

Courtesy of BMW OF NORTH AMERICA, INC.

The following tools are required to press out the output shaft from the drive flange, see graphic for arrangement: