Audio menu
See also:
Vehicle data, GL 550
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.
...
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. ...
Additives
Do not use any additives in the engine oil. This could damage the engine. ...
