IMPORTANT: Aluminum-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminum screws/bolts exclusively.
Aluminum screws/bolts must be replaced each time they are released .
Aluminum screws/bolts are permitted with and without color coding (blue).
For reliable identification: Aluminum screws/bolts are not magnetic .
Jointing torque and angle of rotation must be observed without fail (risk of damage) .
Necessary preliminary tasks:
Unlock connector (1) and remove.
Unfasten nut.
Remove positive battery cable (2).
Release screw (1).
Installation note:
Replace aluminum screws.
Unfasten screws (2).
Installation note:
Replace aluminum screws.
Remove starter motor (3).
Installation note:
Check starter pinion and ring gear for damage. Replace starter motor if necessary.
Assemble engine.
Only during starter replacement and on vehicles with MSA (automatic engine start-stop function):
BMW X3 Owners Manual > Active Cruise Control with
Stop & Go function, ACC: Displays in the instrument cluster
Desired speed
The marking lights up green:
the system is active.
The marking lights up orange:
the system has been
interrupted.
The marking does not light up: the system
is switched off.
Brief status display
Selected desired speed.
If --- appears briefly on the display for Ch ...