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

See also:
Tire identification marks
Tire size
255/50 R 19 103 Y
255: nominal width in mm
50: aspect ratio in %
R: radial tire code
19: rim diameter in inches
103: load rating, not for ZR tires
Y: speed rating, before the R on ZR ...
Setting the language
Press the adjustment button for 12‑13 seconds.
Briefly press the adjustment button again to
switch between English "E" and German "O".
The setting is automatically saved ...
Destination entry by map
Selecting the destination
1. "Navigation"
2. "Map"
The current position of the vehicle is indicated
on the map.
3. "Interactive map"
4. Select the destination ...
