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

See also:
Switching the wipers on/off and brief
wipe
Do not switch on the wipers if frozen
Do not switch on the wipers if they are frozen
onto the windshield; otherwise, the wiper
blades and the windshield wiper motor may be
damaged.◀
Swi ...
Use coasting conditions
When approaching a red light, take your foot off
the accelerator and let the vehicle coast to a halt.
On a downhill gradient, take your foot off the accelerator
and let the vehicle roll.
The flo ...
Image on the Control Display
Switching on the rear view camera
using iDrive
With PDC activated:
"Rear view camera"
The image of the rear view camera is displayed.
The setting is stored for the remote control cur ...
