BMW X3 Owners Manual: General information
If the battery is discharged, the engine can be started using the battery of another vehicle and two jumper cables. Only use jumper cables with fully insulated clamp handles.
Hints
Do not touch live parts
To avoid the risk of potentially fatal injury, always avoid all contact with electrical components while the engine is running.
To prevent personal injury or damage to both vehicles, adhere strictly to the following procedure.
Jump-starting
...
Preparation
Bodywork contact between vehicles
Make sure that there is no contact between
the bodywork of the two vehicles; otherwise,
there is a danger of shor ...
Other materials:
BMW X3 Service & Repair Manual > Operating fluids as of 11/2015: Final-drive gear oils for bmw m1 motorsport coup
In the BMW M1, the final drive is integrated into the manual transmission and is lubricated by the same oil.
The following oil specifications apply:
During the breaking-in phase or after replacing the final drive (the first 1, 000 km (approx. 620 miles), use of
the following oils is approved: ...