Special tools required:

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31 2 230

Remove front wheel. See 36 10 300 REMOVING OR INSTALLING FRONT OR REAR WHEEL

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

Release collar nut; to do so, press brake pedal to floor.

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 31 21 2AZ. See 31 21 WHEEL BEARINGS AND STEERING KNUCKLE

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

Fig 1: Locating Turning Lock

Courtesy of BMW OF NORTH AMERICA, INC.

Remove brake disc. See 34 11 220 REMOVING AND INSTALLING OR REPLACING BOTH FRONT BRAKE DISCS

Replacement only: Drive out wheel hub. See 31 21 180 Replacing bearing for front wheel (AWD)

Remove pulse generator from swivel bearing. See 34 52 525 REPLACING ONE FRONT PULSE GENERATOR

Remove tie rod end from swivel bearing. See 32 21 151 REPLACING LEFT OR RIGHT TIE ROD

Remove guide joint from swivel bearing. See 31 12 026 Removing and installing/replacing guide joint in swivel bearing (AWD)

Remove control arm from swivel bearing. See 31 12 000 Removing and installing/replacing left or right control arm (AWD)

Remove stabilizer link from spring strut. See 31 35 005 Removing and installing/replacing push rod (stabilizer link) for left or right stabilizer (AWD)

Turn swivel bearing to one side.

Press output shaft out of wheel hub and tie up. See 31 60 ... Pressing output shaft out of drive flange (wheel hub) and drawing in

Support swivel bearing with workshop jack and a suitable mounting.

Release nut (1) and remove holder (2).

Pull out bolt (3) towards front.

Spread swivel bearing with special tool 31 2 230. See 31 2 230 SOCKET

Lower workshop jack and remove swivel bearing.

Installation:

Keep press fit of swivel gearing and spring strut in lower area clean and free from oil and grease.

Spread swivel bearing with special tool 31 2 230, align by means of gap to positioning pins on back of spring strut and raise as far as it will go. See 31 2 230 SOCKET

Replace self-locking nut.

Tightening torque 31 31 3AZ. See 31 31 SPRING STRUTS

Fig 2: Identifying Nut And Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Modify dust sleeve (1).

Modify brake guard plate (2).. See 34 11 250 REMOVING AND INSTALLING / REPLACING A BRAKE CARRIER / BRAKE GUARD PLATE AT FRONT

Installation:

Install new wheel bearing. See 31 21 180 Replacing bearing for front wheel (AWD)

Draw in wheel hub. See 31 21 180 Replacing bearing for front wheel (AWD)

Fig 3: Identifying Dust Sleeve

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Replacement only: Perform chassis alignment check. See 32 00 ... CHASSIS/WHEEL ALIGNMENT CHECK PROCEDURE