Necessary preliminary tasks:
NOTE: In order to remove the alternator, it is necessary to remove . In so doing:
Release screws (1).
Release screw (2).
Release screw (3) and remove with holder (4).
Unlock connector (1) and remove.
Remove protective cap (2) and release nut underneath.
Remove positive battery cable(3).
NOTE: For purposes of improved clarity, illustrations and description show A/C compressor removed.
Release screws (1) a few turns until bracket (2) is loose. Do not remove bracket (2).
Feed out alternator (3) and remove.
Assemble engine.
BMW X3 Service & Repair Manual > Final drive with cover: Checking/topping up oil level in rear differential
WARNING: DANGER OF POISONING if oil is ingested/absorbed through the skin!
RISK OF INJURY if oil comes into contact with eyes and skin!
IMPORTANT:
Risk of damage!
To avoid serious damage to the rear axle differential, it is essential to use only approved
transmission oils in the rear axle ...