See also:

Close the windows and glass sunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption. ...

Drive away without delay
Do not wait for the engine to warm up while the vehicle remains stationary. Start driving right away, but at moderate engine speeds. This is the fastest way for the cold engine to reach its ope ...

Speed limit
Entry of a speed limit which, when reached, should cause a Check Control message to be issued. Renewed warning if the vehicle speed drops below the set speed limit once by at least 3 mph/ 5 k ...