Close the windows and glasssunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption.
See also:
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. ...
Volume
▷ "Speed volume": speed-dependent volume
control.
▷ "PDC": volume of the PDC signal compared
to the entertainment sound output.
▷ "Gong": volume o ...
Hazard warning flashers
The button is located in the center console. ...