Indicator Lamp - Mercedes-Benz M-Class Operator's Manual

Operating the climate control systems
146
Problems with the "Cooling with air dehumidification" function
Problem
The indicator lamp in
the ¿/Á button
flashes three times or
remains off. The
"Cooling with air
dehumidification"
function cannot be
switched on.
Setting climate control to automatic
General notes
If you deactivate the "Cooling with air-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
only deactivate the "Cooling with air-
dehumidification" function briefly.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
Automatic mode will achieve optimal
operation if cooling with air dehumidification
is also activated. If necessary, cooling with air
dehumidification can be deactivated.
In the rear compartment, you can also switch
climate control for the rear seats to automatic
mode using the à button.
Possible causes/consequences and M Solutions
Cooling with air dehumidification has been deactivated due to a
malfunction.
Visit a qualified specialist workshop.
X
Activating/switching
X
X
X
X
or
X
3-zone automatic climate control: when
automatic mode is activated, you can select
a climate mode (
Turn the SmartKey to position 2 in the
ignition lock ( page 157).
Y
Set the desired temperature.
To activate: press the à button.
The indicator lamp in the à button lights
up. Automatic air distribution and airflow
are activated.
To switch to manual mode: press the
_ button.
Press the I or K button.
The indicator lamp in the à button goes
out.
page 147).
Y