33 21... Pressing output shaft out of drive flange and drawing in

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 AXLE FINAL DRIVE .

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.

Unfasten collar nut (1).

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
- Secure output shaft against falling out.

The following work steps describe pressing out the output shaft:

Fig 3: Identifying Drive Flange Output Shaft Arrangement

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The following tools are required to press out the output shaft from the drive flange, see Fig 3 for arrangement:

Vehicle components:

I	Drive flange hub
II	Wheel carrier

Required components for all models and types:

1	Hydraulic unit
E3	Washer M24
F3	Spindle M24 (length 270 mm)
C1	Holding sleeve
B1	Adapter

* Components specific to model and type:

K*	Wheel bolts

The following work steps describe drawing in the output shaft:

Fig 4: Identifying Drive Flange Hub Arrangement

Courtesy of BMW OF NORTH AMERICA, INC.

The following tools are required to fit the output shaft in the drive flange, 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:

Lightly oil gearing of the output shaft and insert in drive flange.

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 .

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

Installation note:

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

Renew collar nut (1).

Fig 6: Locating Collar Nut

Courtesy of BMW OF NORTH AMERICA, INC.