Necessary preliminary work:
Fold back cover (1).
Release nut underneath.
Remove positive battery cable from battery positive terminal.
Release positive battery lead(1) from acoustic cover (3).
Slacken nut (1).
Disconnect positive battery cable from alternator.
Release positive battery lead from retainer (2).
Release retainers (1) and detach positive battery lead from guide.
Release nut (1) on starter motor.
Disconnect positive battery cable from starter motor.
Release positive battery cable from retainers (2).
Feed out positive battery cable and remove.
NOTE: Reassemble the vehicle.
Check stored fault messages.
Delete fault memory.
BMW X3 Owners Manual > Vehicle care: Caring for special components
Light-alloy wheels
When cleaning the vehicle, use only neutral
wheel cleaners having a pH value from 5 to 9.
Do not use abrasive cleaning agents or steam
jets above 140 F/60 C. Follow the manufacturer's
instructions.
Aggressive, acidic or alkaline cleaning agents
can destroy the protectiv ...