See also:

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. ...

Opening/closing the glass sunroof
When the sliding visor is open, proceed as described under Sliding visor. ...

X3 in the Market
The compact luxury crossover segment has undergone a revolution since the first-generation X3 debuted. Both the Q5 and GLK-Class have become popular sellers, while X3 sales have lagged behind. T ...