Mercedes-Benz GL-Class: Defrosting the windshield
You can use this function to defrost the windshield or to defrost the inside of the windshield and the side windows.
You should only select the defrosting
function until the windshield is clear again.
► Turn the SmartKey to position 2 in the
ignition lock.
► To activate: press the
button.
The indicator lamp in the
button
lights
up.
The climate control system switches to the following functions:
• cooling with air dehumidification on
• high airflow
• high temperature
• air distribution to the windshield and
front side windows
• air-recirculation mode off
► To switch off: press the
button.
The indicator lamp in the
button
goes
out. The previously selected settings come
into effect again. The cooling with air
dehumidification function remains on. Airrecirculation
mode remains deactivated.
or
► Press the
button.
or
► Press the
button.
or
► Turn the temperature control clockwise or
counter-clockwise.
or
► Press the
button.
Activating/deactivating the MONOfunction
The MONO function is only available with
automatic climate control.18
You can use the MONO function to adopt the
settings configured for temperature, air
distribution and airflow on the driver's s ...
Defrosting the windows
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 defr ...
See also:

Illuminates when the rear fog lamps are switched on. ...
Using the USB Port
For vehicles with a USB port, the connector is located in the instrument panel
storage area.
See Instrument Panel Storage for more information.
Radios with a USB port can control a USB stora ...
Engine emergency off
If the engine cannot be switched off as
described, observe the following procedure:
► Take the fuse allocation chart out of the
vehicle tool kit.
► Search for fuse 120 in the fuse al ...






