Setting the side air vents
•► To open/close: turn thumbwheel 3 up or down.
Side window defroster vent 1 is never completely shut, even if side air vent 2 is shut.
See also:
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.
...
General driving tips
Important safety notes
WARNING
Always remember that you must concentrate
primarily on driving the vehicle. The driver's
concentration must always be directed
primarily at road traffic ...
Maximum tire pressure
WARNING
Never exceed the maximum tire inflation pressure. Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated tires wear excessively and/or unevenly,
adver ...