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

See also:
Interior: First-class ambience, intelligent functionality.
A generous and versatile spatial concept, high-grade materials and a
characteristic three-dimensional surface design provide the interior of the new
BMW X3 with a modern, premium ambience and inte ...
Steering wheel heating
Steering wheel heating
Switching on/off
Press the button.
▷ On: the LED lights up.
▷ Off: the LED goes out. ...
Front
Opening
Press on the cover.
Emptying
Place your finger in the depression next to the
ashtray, arrow, and push up at the same time.
The ashtray can be removed.
Lighter
Push in the lighter. ...
