Windows fogged up on the inside
Activate the cooling with air
dehumidification function 
.
Activate automatic mode
.
If the windows continue to fog up,
activate the defrosting function.
You should only select this
setting until
the windshield is clear again.
See also:
Driving downhill
Drive slowly.
Do not drive at an angle down steep inclines. Steer into the line of fall
and drive with the front wheels aligned straight. Otherwise, the vehicle could
slip sideways, tip and ...
Vehicle data, GL 350 BlueTEC
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.
...
Front air bags
The front air bags increase protection for the
driver's and front-passenger's head and
chest.
Driver's air bag 1 deploys in front of the
steering wheel; front-passenger front air
bag 2 depl ...