See also:

Locking and unlocking
Press the button in the vehicle. The doors and the tailgate are locked or unlocked when the front doors are closed, but they are not secured against theft. The fuel filler flap remains unlock ...

Locking and unlocking
Pressing the buttons locks and unlocks the doors and the trunk lid when the front doors are closed, but they are not secured against theft. The fuel filler flap remains unlocked. ...

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 ...