Switching the microphone to mute
When a call is active, the microphone can be muted.
1. "Telephone".
2. "Active calls".
3. 
"Microphone mute"
A microphone that has been switched to mute is automatically reactivated:
▷ When a new connection is established.
▷ When switching between call parties.
See also:
Remove attached partsfollowing use
Remove auxiliary mirrors, roof or rear luggage
racks which are no longer required following
use.
Attached parts on the vehicle impair the aerodynamics
and increase the fuel consumption. ...
Releasing
Press the switch while the
brake pedal is
pressed or transmission position P is engaged.
The LED and indicator lamp go out.
The parking brake is released.
Take the remote control with you
Ta ...
Switching between upper and lower
case letters
Depending on the menu, you can switch between
entering upper and lower case letters:
...