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 > Transmission shafts: Renewing radial shaft seal for drive flange (atc 45l)
Special tools required:
23 0 490
27 1 430
IMPORTANT:
After completion of work, CHECK TRANSMISSION OIL LEVEL and top up if necessary.
For this transfer box, use approved TRANSMISSION OIL only.
Necessary preliminary tasks:
Remove TRANSFER BOX.
Drive a hole into radial shaft ...