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

See also:
Open trunk lid with no-touch activation
With Comfort Access, the trunk lid can be
opened with no-touch activation using the remote
control you are carrying.
A sensor detects a directed foot motion in the
center of the area at the rea ...
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...
Activating/deactivating Bluetooth
Bluetooth is not permitted everywhere. Comply
with all safety guidelines and regulations.
1. "Telephone"
2. Open "Options".
3. "Bluetooth®"
...
