33 21 … 

Press out:

Pressing output shaft out of drive flange and drawing in BMW M2 F87

Important!

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

Pressing output shaft out of drive flange and drawing in BMW M2 F87

Activate parking brake.
Unfasten collar nut (1).

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
Adapter – 81 64 2 318 661

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

Vehicle components:

Required components for all models and types:

  • Components specific to model and type:
1 Hydraulic unit
E3 Washer M24
F3 Spindle M24 (length 270 mm)
C1 Holding sleeve
B1 Adapter
1 Hydraulic unit
E1 Holding sleeveM24
I Drive flange hub
II Wheel carrier
III Output shaft
I Drive flange hub
II Wheel carrier
K3 Wheel bolts

Pressing output shaft out of drive flange and drawing in BMW M2 F87 Pull in:

The following tools are required to fit the output shaft in the drive flange, see graphic for arrangement:

Vehicle components:

Required components for all models and types:

  • Components specific to model and type (thread diameter, output shaft):

Installation note:

D1 Washer
F2 Spindle M24 / M20 (length 335 mm)
G3 Adapter M27 x 1.5 to M20

Pressing output shaft out of drive flange and drawing in BMW M2 F87

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

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.

Draw in output shaft with hydraulic tool until the torque wrench is activated.

Pressing output shaft out of drive flange and drawing in BMW M2 F87

Activate parking brake.

Part: Replace collar nut.

Tighten collar nut (1).

Tightening torque 33 41 1AZ:

Type Thread Tightening specifications Torque
1AZ Drive flange hub to output shaft
F80 / F82 / F83 / F87 M27 Renew nut. 300 Nm
2AZ Wheel bearing to wheel carrier
F80 / F82 / F83 / F87 M12 Renew screws.
Jointing torque 80 Nm
Angle of rotation 90 °

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

Note:

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