BMW X3 Service & Repair Manual: Replacing drive flange on left/right rear axle shaft

Special tools required:

• 34 4 000

Necessary preliminary tasks:

• Remove REAR WHEEL .

If necessary, remove visual protection cap (1).

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

Activate parking brake and release collar nut.

Installation note:

Lightly oil the gearing at the shaft journal.

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

Replace the collar nut and secure it by positive peening on flat areas of output shaft.

• Remove BRAKE DISC .

only: F01, F02, F04, F07:

Twist roll pins (1) 90º with special tool 34 4 000 and detach.

Only disconnect return spring (2) with brake spring pliers.

Remove brake pads (3).

NOTE: the fitted position of the adjusting screw must not be changed or turned.

Use the special tool from the 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 detachment of the drive flange:

The following tools are required to pull the drive flange out of the wheel bearing.

Vehicle components:

Required components for all models and types:

Components specific to model and type:

• Pull out drive flange using the hydraulic tool.

IMPORTANT: Wheel bearing will be destroyed by being pulled out of the drive flange and must be renewed!

The following work steps pulling in the drive flange:

The following tools are required to pull the drive flange in. For arrangement, see Fig. 107:

Installation note:

The drive flange and output shaft can be installed in the wheel bearing in one operation.

Vehicle components:

Required components for all models and types:

Components specific to model and type:

IMPORTANT: Risk of damage! Due to the technical requirements, the special tool used, sleeve G,* is relatively thin-walled. So that the load limits of the clamping sleeve are not exceeded, you must use the adapter 81 64 2 318 661 together with a torque wrench.

Fit adapter with torque wrench to hydraulic unit.

Set torque wrench to 20 Nm.

Oil drive flange lightly and attach to the output shaft gearing.

Pull in drive flange with hydraulic tool until torque wrench triggers.

Installing parking brake shoes. (Only for F01, F02, F04, F07) Install BRAKE DISC .

Activate parking brake and tighten collar nut.

Installation note:

Replace collar nut.

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

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

After installation:

Only for F01, F02, F04, F07:

• Adjust parking brake.