Call disconnection while the vehicle is in motion

A call may be disconnected if:
• there is insufficient network coverage in certain areas.
• you move from one transmitter/receiver area (cell) into another and no channels are free.
• you use a SIM card which is not compatible with the network available.
• you are using a mobile phone with "Twincard" and the mobile phone with the second SIM card is already logged into the network.

    See also:

    High-beam spot lamp (vehicles with halogen daytime running lamps)
    Switch off the lights. Open the hood. Turn housing cover 1 counter-clockwise and pull it out. Turn bulb holder 2 counter-clockwise and pull it out. Take the bulb out of bulb holder 2. ...

    Displaying navigation instructions
    In the Navi menu, the multifunction display shows navigation instructions. Further information. Activate COMAND. Press the or button on the steering wheel to select the Navi menu. ...

    Other status indicators of the navigation system
    • : you have reached the destination or an intermediate destination. • New Route... or Calculating Route: a new route is being calculated. • Off Map or Off Mapped Road: the vehicle position ...