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:
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 ...
M Dynamics
The 1M's dynamics are typical M — balanced and controllable overall. The car
enters turns with practically no understeer, and rear traction can be broken
loose through both acceleration and lift. ...
Malfunction
A Check Control message is displayed.
Adaptive light control is malfunctioning or has
failed. Have the system checked as soon as possible. ...