Necessary preliminary tasks:
IMPORTANT: Always place a new circlip on the output shaft reinstalling!
If necessary, remove visual protection cap (1).
IMPORTANT: Expand anti-twist lock sufficiently to avoid damaging thread when releasing collar nut (1).
Activate parking brake and release collar nut (1).
Installation note: Lightly oil 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.
Special Tools:
The following work steps describe pressing out the output shaft:
The following tools are required to press out the output shaft from the drive flange, see Fig. 60 for arrangement:
Vehicle components:
Required components for all models and types:
The following work steps describe drawing in the output shaft:
The following tools are required to fit the output shaft in the drive flange.
Vehicle components:
Required components for all models and types:
Components specific to model and type (thread diameter, output shaft):
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.
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.
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.
Secure collar nut (1) by positive peening at flat areas of output shaft.
BMW X3 Service & Repair Manual > Heater with operation: Replacing controller for heating and air conditioning system blower
Necessary preliminary work:
Remove TRIM FOR INSTRUMENT PANEL, BOTTOM LEFT
Removal:
Release screws (1).
Unlock and disconnect connector (2).
Remove controller (3) downwards.
Installation:
Position controller (3) correctly.
Tighten down the screws (1).
Connect connector (2).
R ...