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

See also:
What to do if...
Information on suitable mobile phones.
The mobile phone could not be paired or connected.
▷ Is Bluetooth activated in the vehicle and on
the mobile phone? Activate Bluetooth in the
vehicle ...
Enabling operation in the rear
Only possible via the iDrive in the front.
1. "Settings"
2. "Allow rear control"
3. Select the desired priority.
...
Sound output
Switching on/off
When the ignition is switched off: press ON/OFF
button on the radio.
Muting
When the ignition is switched on or the engine
is running: press the ON/OFF button on the
radio. ...
