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.
BMW X3 Service & Repair Manual > Body and Frame: Body corrosion protection
To comply with the six year warranty against rust, specially selected waxes
and additives produce an elastic,
temperature-proof,
corrosion inhibiting protectant. The corrosion protection thickness should
measure a
maximum of 30 microns, but can be varied as desired by repeating the spraying
...