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

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove REAR WHEEL .
Remove PARKING BRAKE SHOES .

IMPORTANT: Check sensor head and cable of pulse sensor and renew if necessary.

If necessary, remove visual protection cap (1).

Fig 1: Removing Visual Protection Cap From Rear Axle Final Drive

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IMPORTANT: Expand anti-twist lock sufficiently to avoid damaging thread when releasing collar nut (1).

Activate parking brake and release collar nut (1).

Tightening torque 33 41 1AZ .

Installation note:

Slightly grease the gearing at the shaft journal.

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

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

Fig 2: Locating Collar Nut

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Use special tool:

Hydraulic unit - 81 64 2 155 744
Adapter kit 1 - 81 64 2 155 745
Adapter kit 2 - 81 64 2 155 746
Adapter - 81 64 2 318 661

The following work steps describe the removal of the drive flange:

Fig 3: Identifying Drive Flange Hub Arrangement

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The following tools are required to pull out the drive flange hub from the wheel bearing; see Fig 3 for arrangement:

Vehicle components:

I	Drive flange hub
II	Wheel carrier

Required components for all models and types:

E3	Washer
B1	Adapter
E1	Holding sleeveM24
F1	Spindle M24/M20 (length 425 mm)
1	Hydraulic unit
A1	Device

* Components specific to model and type:

NOTE: Two variants of the wheel carrier are installed.

M5	Adapter diameter 90 mm
K1	Screws M12 x 1.5
	or
M3	Adapter Ø 102 mm
K1	Screws M12 x 1.5

IMPORTANT: The wheel bearing is destroyed when the drive flange is removed and cannot be reused!

Replace WHEEL BEARING .

The following work steps pulling in the drive flange:

Fig 4: Identifying Drive Flange Hub Arrangement

Courtesy of BMW OF NORTH AMERICA, INC.

The following tools are required to insert the drive flange hub; see Fig 4 for arrangement:

Vehicle components:

I	Drive flange hub
II	Wheel carrier
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 (thread diameter, output shaft):

G2	Adapter M24 x 1.5 to M20

Installation note:

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

The output shaft and drive flange may be inserted in the same procedure.

Fig 5: Installing Adapter To Hydraulic Unit Using Torque Wrench

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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 Fig 5).
Set torque wrench to 20 Nm.
Draw in output shaft with hydraulic tool until the torque wrench is activated.

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

Tightening torque 33 41 1AZ .

Installation note:

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

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

Fig 6: Locating Collar Nut

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Adjust PARKING BRAKE .