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:

    Servicing the brakes
    If the red brake warning lamp lights up in the instrument cluster and you hear a warning tone while the engine is running, the brake fluid level may be too low. Observe additional warning messag ...

    A unique combination of driver-assistance systems
    The 2011 CL-Class further enforces its position as an automotive masterwork and a technology platform with the most advanced assistance and protection systems. These highly perceptive assistants c ...

    Vehicle data
    For the specified vehicle data, please note that: • The heights specified may vary due to: - tires - load - condition of the suspension - optional equipment ...