33 41 000 Replacing drive flange on left/right rear axle shaft

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.

Necessary preliminary tasks

Remove REAR WHEEL .

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

Release collar nut (1), activate parking brake for this purpose.

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.

Tightening torque 33 41 1AZ. .

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

Remove BRAKE DISC .
Remove rear PARKING BRAKE SHOES .

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 detachment of the drive flange:

Fig 2: Pulling Out Drive Flange From Wheel Bearing

Courtesy of BMW OF NORTH AMERICA, INC.

The following tools are required to pull the drive flange out of the wheel bearing. For arrangement, see graphic:

Vehicle components

I	Drive flange
II	Wheel carrier/swivel bearing

Required components for all models and types

E3	Washer
B1	Adapter
E1	Holding sleeveM24
F1	Spindle M24 (length 425 mm)
1	Hydraulic unit
A1	Device

Components specific to model and type

M3	Adapter diameter 102 mm
K2	Screws M14 x 1.5

Pull out drive flange using the hydraulic tool
Detach WHEEL BEARING INNER RING from drive flange.

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:

Fig 3: Pulling In Drive Flange In Wheel Bearing

Courtesy of BMW OF NORTH AMERICA, INC.

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

Installation note:

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

Vehicle components

I	Drive flange hub
II	Wheel carrier/swivel bearing
III	Output shaft

Required components for all models and types

1	Hydraulic unit
E1	Holding sleeveM24
D1	Washer
F2	Spindle M24 / M20 (length 335 mm)

Components specific to model and type

G3	Adapter M27 x 1.5 to M20

Fig 4: Identifying Special Tool And Sleeve

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Risk of damage!
Due to the technical requirements, the special tool used, sleeve G,* is relatively thin-walled.
To ensure that the load limit of the tensioning sleeve is not exceeded when drawing in the output shaft, it is essential to use adapter 81 64 2 318 661 in combination with a torque wrench.

Fit adapter with torque wrench to hydraulic unit (see graphic).

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.

Install PARKING BRAKE SHOES .

INSTALL BRAKE DISC . Tighten collar nut (1), activate parking brake for this purpose.

Tightening torque 33 41 1AZ. .

Installation note:

Renew collar nut (1), apply a light coating of oil to collar nut contact surface and tighten.

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

Fig 5: Locating Collar Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Secure collar nut (1) by positive peening at flat areas of output shaft.

After installation

Adjusting PARKING BRAKE .