General information
Switch position: 0, 
If the driver door is opened with the ignition switched off, the exterior lighting is automatically switched off at these switch settings:
See also:
Malfunction
In the event of a failure or malfunction of the
parking brake, secure the vehicle against rolling
using a wheel chock, for example, when leaving
it. ...
Activating HDC
Press the button; the LED above
the button
lights up. ...
Entering a phone number
Dialing a number
1. "Telephone"
2. "Dial number"
3. Select the digits individually.
4. Select the symbol.
The phone number can also be entered by voice. ...