See also:

The concept
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 pre ...

Remove unnecessary cargo
Additional weight increases fuel consumption. ...

Switch off the engine during longer stops
Switch off the engine during longer stops, e.g., at traffic lights, railroad crossings or in traffic congestion. Fuel savings are achieved after the vehicle is switched off for only approx. 4 s ...