Close the windows and glass sunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption.
See also:
Overview, Instrument cluster with enhanced features
1 Fuel gauge
2 Speedometer
3 Indicator/warning lamps
4 Tachometer
5 Engine oil temperature
6 Electronic displays
7 Display/reset miles ...
Speed limit
Display of a speed limit which, when reached,
should cause a warning to be issued.
The warning is repeated if the vehicle speed
drops below the set speed limit once by at least
3 mph/5 km/h.
Di ...
Remove attached parts
following use
Remove auxiliary mirrors, roof or rear luggage
racks which are no longer required following
use.
Attached parts on the vehicle impair the aerodynamics
and increase the fuel consumption. ...