31 21 090 Removing and installing/replacing left or right swivel bearing

WARNING: This page is about a different variant/trim than selected.

Remove front wheel.

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

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

Installation:

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

Fig 1: Identifying Collar Nut On Flattened Area

Courtesy of BMW OF NORTH AMERICA, INC.

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

Tightening torque 31 60 2AZ .

Secure collar nut on flattened area (2) of drive shaft by positive peening.

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

Remove pulse generator from swivel bearing and expose line up to engine carrier

IMPORTANT: To avoid damaging the stabilizer link, remove the stabilizer link from the stabilizer .

Remove tie rod end from swivel bearing . See 32 21 231 REPLACING (REMOVING AND INSTALLING) LEFT OR RIGHT TIE ROD .

Remove wheel guide joint from swivel bearing .

The following operations describe the way in which the output shaft is pressed out of the drive flange.

Fig 2: Identifying Necessary Components

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:

1	Hydraulic unit
E3	Washer M24
F3	Spindle M24 (length 270 mm)
B2	Adapter
K2	Screws M14 x 1.5

Press swivel bearing (1) outwards and remove output shaft (2) from wheel bearing.

Fig 3: Press Swivel Bearing (1) Outwards And Remove Output Shaft (2) From Wheel Bearing

Courtesy of BMW OF NORTH AMERICA, INC.

Disengage brake hose from holder.

Fig 4: Identifying Brake Hose

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IMPORTANT: Tightening to torque must be effected by means of the screw!

Support swivel bearing with workshop jack.

Slacken nut (2).

Pull out screw (1) towards rear and remove swivel bearing.

Installation:

Keep swivel bearing to spring strut connection clean and free from oil and grease.

Note insertion direction of screw.

Replace self-locking nuts.

Tightening torque 31 31 3AZ .

Fig 5: Pull Out Screw (1) Towards Rear And Remove Swivel Bearing

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Modify wheel bearing
Modify brake carrier/guard plate . See 34 11 250 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT BRAKE CONSOLE/BACK PLATE .

The following work steps describe drawing in the output shaft:

Fig 6: Identifying Necessary Components

Courtesy of BMW OF NORTH AMERICA, INC.

1	Hydraulic unit
E3	Holding sleeve M24
D1	Washer
F2	Spindle M24 / M20 (length 335 mm)
G4	Adapter M22 x 1.5 to M20

IMPORTANT: Risk of damage! The G4 special tool sleeve used has relatively thin walls due to its technical requirements. So that the load limits of the clamping sleeve are not exceeded when pulling in the output shaft, the adapter 81 64 2 318 661 must be used together with a torque wrench.

Fit adapter with torque wrench to hydraulic unit (see graphic). Set torque wrench to 20 Nm. Draw in output shaft with hydraulic tool until the torque wrench is activated.

Fig 7: Fitting Adapter With Torque Wrench To Hydraulic Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Apply a light coating of oil to contact surface of collar nut / wheel bearing, and apply tightening force. - No oil permitted on thread of shaft journal or collar nut. Tighten new collar nut (1). For this purpose, press the brake pedal. Tightening torque 31 60 2AZ . Secure collar nut on flattened area (2) of drive shaft by positive caulking. Installation note: Replace collar nut (1).

Fig 8: Identifying Collar Nut

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Replacement only: Perform wheel/chassis alignment check
See STEERING AND WHEEL ALIGNMENT - REPAIR INSTRUCTIONS -- CLUBMAN .