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:
Entertainment
Operation of the radio, CD equipment and external audio devices as well as their
tone settings are described in this chapter. ...
Safety information
The tire characteristics and tire inflation pressure
influence the following:
The service life of the tires.
Road safety.
Driving comfort.
...
Replacing the battery
Replacing the battery
1. Take the integrated key out of the remote
control.
2. Push in the catch with the key, arrow 1.
3. Remove the cover of the battery compartment;
see arrow 2.
4. Insert ...