See also:

Switching on/off manually
Press the button. On: the LED lights up. Off: the LED goes out. ...

Controls
1 Change the entertainment source 2 Eject CD/DVD 3 CD/DVD drive 4 Change station/track 5 Programmable memory buttons 6 Volume, on/off ...

The concept
The automatic engine start-stop function helps save fuel. The system switches off the engine during a stop, e. g., in a traffic congestion or at traffic lights. The ignition remains switched on. ...