See also:

Switching on automatically
Select transmission position R with the engine running. The backup camera image is displayed if the system was switched on via the iDrive. ...

General information
Refuel promptly Refuel below a range of 30 miles/50 km; otherwise, engine functions are not ensured and damage may occur. ...

Fuel gauge
Fuel tank capacity: approx. 14 US gal/53 liters. You can find information on refueling on page 206. If the tilt of the vehicle varies for a longer period, when you are driving in mountainous ar ...