See also:

Making a call
Entering a telephone number using the telephone keypad Call up the telephone basic menu. Enter all the digits of the phone number using the telephone keypad. To make a call: press the but ...

Setting the side air vents
Setting the side air vents To open/close: turn thumbwheel 3 to the left or right. Side window defroster vent 1 is never completely shut, even if side air vent 2 is shut. ...

Vehicle data, GL 450
The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...