See also:

Switching on/off manually
Press the button. ...

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. ...

System limits
Speed range Best results are achieved when using the system on well-developed roads and highways. The desired speed can be selected between 20 mph/30 km/h to 110 mph/180 km/h. The system can a ...