Closing the windows and glass sunroof/panoramic glass sunroof
Driving with the glass sunroof/panoramic glass sunroof and windows open results in increased air resistance and raises fuel consumption.
See also:
Care products
Regular cleaning and care contributes significantly to the value retention of
your BMW.
BMW recommends cleaning and caring for your vehicle with products that are approved
by BMW for this purpose ...
Opening/closing the glass sunroof
When the sliding visor is open, proceed as described
under Sliding visor. ...
Office
...