See also:

Number of safety belts
Your vehicle has been fitted with five safety belts for the safety of you and your passengers. However, they can only offer protection when adjusted correctly. ...

Tire inflation pressure values over100 mph/160 km/h
X3 28i X3 35i ...

For the 530i, 535i, 550i, 525d, 530d and 535d: check oil level
The concept The oil level is monitored electronically and displayed on the Control Display. Requirements ▷ The engine must be running and warm after the vehicle has been driven for at lea ...