Setting the airflow
Turn the SmartKey to position
2 in the
ignition lock.
To increase/reduce: press
the 
or
button.
You can use automatic climate
control to
set the airflow in the rear compartment
separately.
See also:
Traction
WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characterist ...
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.
...
Cleaning the wiper blades
WARNING
Before cleaning the windshield or wiper
blades, switch off the windshield wipers and
remove the SmartKey from the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop but ...