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:
Opening the main menu
Press the button.
The main menu is displayed
The main menu is displayed.
All iDrive functions can be called up via the main
menu. ...
Malfunction
Comfort Access may not function properly if it
experiences interference from external sources
such as mobile phones, metal objects, overhead
power lines, transmission towers, etc.
In this case, ...
Releasing
With the ignition switched on:
Automatic transmission: Press
the switch
while the brake is pressed or transmission
position P is engaged.
The LED and indicator lamp go out.
The parking bra ...