See also:

CD changer
The BMW CD changer for six CDs is behind the left side panel in the cargo area. Removing the CD magazineTo insert or remove CDs from the CD magazine, you must first remove it from the CD changer: ...

Fuel tank capacity
Approx. 22.5 US gallons/85 liters, including the reserve capacity of approx. 2.1 US gallons/8 liters. X5 xDrive50i/X6 xDrive50i: reserve capacity of approx. 3.2 gallons/12 liters. Refuel promp ...

The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels. ...