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

See also:
Maintenance
Maintain the vehicle regularly to sustain the road
safety, operational reliability and the New Vehicle
Limited Warranty.
Specifications for required maintenance measures:
▷ BMW Maintenance ...
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...
Indications on the Control Display
EfficientDynamics
Information on fuel consumption and technology
can be displayed during driving.
1. "Vehicle Info"
2. "EfficientDynamics"
Displaying fuel consumption history ...
