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:

    Assigning a point of interest category
    Introduction The categories and points of interest available depend on the distance from the vehicle position you have set for the point of interest. • point of interest in the vicinity of the ...

    Checking the oil level using the oil dipstick
    On vehicles with a 12-cylinder engine, the oil level can be checked using the on-board computer. On all other models, the dipstick must be used to check the engine oil level. Example: vehic ...

    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. ...