Call disconnection while the vehicle is in motion

Mercedes-Benz S-Class / Mercedes-Benz S-Class Owners Manual / COMAND / Telephone / General notes / 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:

    Switching on/off
    The three blue indicator lamps in the buttons indicate the ventilation level you have selected. If the battery voltage is too low, the seat ventilation may switch off. ► Make sure that ...

    Using the SmartKey
    The SmartKey must be close to the driver's door handle. - Point the tip of the SmartKey at the driver's door handle. - Press and hold the button until the side windows and the sliding s ...

    Important safety notes
    The coolant is a mixture of water and antifreeze/corrosion inhibitor. It performs the following tasks: • corrosion protection • antifreeze protection • raising the boiling point The engine coo ...