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:
The concept
The central locking system becomes active
when the driver's door is closed.
The system simultaneously engages and releases
the locks on the following:
► Doors.
► Tailgate.
► ...
Malfunction
A Check Control message is displayed.
On the Control Display, the areas in front of and
behind the vehicle are shaded. PDC has failed.
Have the system checked.
To ensure full operability:
` ...
Displays
Symbol
Function
Service requirements
Engine oil
Roadworthiness test
Front brake pads
Rear brake pads
Brake fluid ...