12 41 020 Removing and installing/replacing starter motor (N54)
IMPORTANT:
Aluminium screws/bolts must be replaced each time they are released.
Aluminium screws/bolts are permitted with and without color coding (blue).
For reliable identification:
Jointing torque and angle of rotation must be observed without fail (risk of damage).
Necessary preliminary tasks:
- Switch off ignition
- Disconnect BATTERY NEGATIVE LEAD
- Remove INTAKE PLENUM
Unlock connector (1) and remove.
Release nuts (2) and disconnect positive battery cables.
Tightening torque 12 42 2AZ .
Release screws (3).
Installation note:
Replace aluminium screws.
Tightening torque 12 41 1AZ .
Remove starter motor (4).
Installation note:
Check starter pinion and ring gear for damage. Replace starter motor if necessary.
Only during starter replacement and on vehicles with MSA (automatic engine start-stop function):
- Use BMW diagnosis system to reset the starter counter.