Mercedes-Benz GLA 180 Owner's Manual page 138

or
Air-conditioning system: turn temperature
X
control : anti-clockwise or clockwise
( page 129).
Y
THERMOTRONIC automatic climate control:
turn temperature control : or E anti-clock-
wise or clockwise (
Y
Demisting the windows
Windows misted up on the inside
Air-conditioning system
Activate the ¿ "Cooling with air dehumid-
X
ification" function.
If the windows continue to mist up, activate
X
the ¬ "Windscreen demisting" function.
i
You should only select this setting until the
windscreen is clear again.
THERMOTRONIC automatic climate con-
trol
Activate the ¿ "Cooling with air dehumid-
X
ification" function.
Activate automatic mode Ã.
X
If the windows continue to mist up, activate
X
the ¬ "Windscreen demisting" function.
i
You should only select this setting until the
windscreen is clear again.
Problems with the rear window heating
Problem
The rear window heating
has switched off prema-
turely or cannot be
switched on.
Activating/deactivating air-recircula-
tion mode
General notes
You can deactivate the flow of fresh air tempo-
rarily if unpleasant odours are entering the vehi-
cle from outside. The air already inside the vehi-
cle will then be recirculated.
Operating the climate control systems
page 130).
Possible causes/consequences and M M Solutions
The battery has not been sufficiently charged.
Switch off any consumers that are not required, e.g. reading lamps,
X
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window heating
can be switched on again.
Windows misted up on the outside
Activate the windscreen wipers.
X
Set the air distribution to P or O.
X
i
You should only select this setting until the
windscreen is clear again.
Rear window heating
General notes
The rear window heating has a high current
draw. You should therefore switch it off as soon
as the window is clear. The rear window heating
otherwise switches off automatically after sev-
eral minutes.
If the battery voltage is too low, the rear window
heating may switch off.
Switching on/off
Turn the key to position 2 in the ignition lock
X
( page 144).
Y
Press the ¤ button.
X
The indicator lamp in the ¤ button lights
up or goes out.
If you activate air-recirculation mode, the win-
dows can mist up more quickly, particularly at
low temperatures. Activate air-recirculation
mode only briefly to prevent the windows from
misting up.
The operation of air-recirculation mode is the
same for all control panels.
135