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

See also:
Automatic locking
The setting is stored for the remote control currently
in use.
1. "Settings"
2. "Door locks"
3. Select the desired function:
▷ "Lock if no door is opened"
...
Integrated Owner's Manual in the vehicle
The integrated Owner's Manual can be displayed
on the Control Display. The equipment
and functions that are in the vehicle are described
therein. ...
Head airbags
In a lateral impact, the head airbag supports the
head. ...
