Necessary preliminary tasks:
Release screw (1).
Lever out cable clip (2).
Remove cover (3).
Fold back cover (1).
Release nut underneath. Remove positive battery cable from positive battery connection point.
Unclip positive battery cable (1) from brackets (2) at rear of engine block.
Remove protective cap (1) and release nut underneath.
Release nut (2) on starter.
Disconnect positive battery cable (3) from alternator and starter motor. Feed out positive battery cable (3) and remove.
NOTE: Reassemble the vehicle.
Check stored fault messages.
Delete fault memory.
BMW X3 Service & Repair Manual > Rear axle: Wrench
Wrench AM
NOTE: (Ignition key) Discontinued, only available via complete tool
Wrench Minimum set: Mechanical tools AM
In conjunction with: 33 5 070 = 0495554
NOTE:
For loosening and tightening the propeller shaft to rear axle final drive screw
connection (slot nut). SW50. Replaces SWZ 33 5 ...