The concept

switches the ignition on or off and Pressing the Start/Stop button switches the ignition on or off and starts the engine.

Automatic transmission: the engine starts if the brake is depressed when the Start/Stop button is pressed.

Manual transmission: the engine starts if the clutch is depressed when the Start/Stop button is pressed.

    See also:

    Initialization after a power failure
    After a power failure, it is only possible to raise the roof, if necessary. Have the system initialized by your service center. ...

    Reference
    This chapter contains technical data, short commands for the voice activation system, and an index that will quickly take you to the information you need. ...

    Terminating the voice activation system
    Briefly press the button on the steering wheel or ›Cancel‹. ...