See also:

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 ...

General information
Refuel promptly Refuel no later than at a range of 30 miles/50 km, or operation of the engine is not ensured and damage may occur.◄ ...

Exterior
The new 6 Series measures some 3 inches longer and 1.5 inches wider than its predecessor; it's a few tenths of an inch shorter at the roof level. As before, the car maintains a short front overhan ...