Indicator Lamp - Mercedes-Benz 2012 A-Class Owner's Manual

Operating the climate control system
128
Problems with the "Cooling with air dehumidification" function
Problem
The indicator lamp in
the ¿ button
flashes three times or
remains off. The "Cool-
ing with air dehumidifi-
cation function" cannot
be switched on.
Setting climate control to automatic
mode
Only THERMOTRONIC automatic climate con-
trol features the "control climate control
automatically" function.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If desired, cooling with
air dehumidification can be deactivated.
If you deactivate the "Cooling with air dehu-
midification function", the air inside the vehi-
cle will not be cooled in warmer weather. The
air inside the vehicle will not be dehumidified
either. The windows can mist up more
quickly. Therefore, only switch off the "Cool-
ing with air-dehumidification function" briefly.
X
Turn the key to position 2 in the ignition
lock ( Y page 143).
X
Set the desired temperature.
X
To activate: press the à button.
The indicator lamp in the à button lights
up. Automatic air distribution and airflow
are activated.
Possible causes/consequences and M Solutions
Cooling with air dehumidification has been deactivated due to a
malfunction.
X
Visit a qualified specialist workshop.
X
To switch to manual operation: press the
É or Ë button.
or
X
Press the K or I button.
The indicator lamp in the à button goes
out. Automatic air distribution and airflow
are deactivated.
Setting the temperature
THERMATIC automatic climate control
You can set the temperature for the entire
vehicle.
X
Turn the key to position 2 in the ignition
lock ( Y page 143).
X
To increase/reduce: turn control :
clockwise or anti-clockwise (
Only change the temperature setting in
small increments. Start at 22 †.
THERMOTRONIC automatic climate
control
Different temperatures can be set for the
driver's and front-passenger sides.
X
Turn the key to position 2 in the ignition
lock ( Y page 143).
X
To increase/reduce: turn controls : or
E clockwise or anti-clockwise
( Y page 125). Only change the temperature
setting in small increments. Start at 22 †.
Y page 123).