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

See also:
Malfunction
In the event of a failure or malfunction of the
parking brake, secure the vehicle against rolling
using a wheel chock, for example, when leaving
it. ...
Display visibility
The visibility of the displays in the Head-up Display
is influenced by:
Certain sitting positions.
Objects on the cover of the Head-up Display.
Sunglasses with certain polarization filters.
...
Maintenance and repairs
Advanced technology, e.g., the use of modern
materials and high-performance electronics, requires
suitable maintenance and repair methods.
Therefore, have this work performed only by a
BMW cent ...
