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

See also:
Park Distance Control PDC
The conceptThe PDC assists you with maneuvering in tight parking spaces. Acoustic signals
and a visual indicator warn you of the presence of an object behind your vehicle.
Four ultrasonic sensors ...
Folding down the middle section
1. Fold in the middle head restraint.
2. Reach into the recess and pull the middle
section forward.
Folding down the middle section ...
Parts and accessories
For your own safety, use genuine parts and accessories
approved by BMW.
When you purchase accessories tested and approved by BMW and Original BMW Parts,
you simultaneously acquire the assurance ...
