See also:

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. ...

Displays in the instrument cluster
Indicator lamp Depending on how the vehicle is equipped, the indicator lamp in the instrument cluster indicates whether the system is switched on. Desired speed ▷ The marking lights ...

Interior and exterior mirrors, automatic dimming feature
Interior and exterior mirrors, automatic dimming feature Two photocells are used for control: ▷ In the mirror glass, see arrow. ▷ On the back of the mirror. For proper operation: ...