Mercedes-Benz 2012C-Class Sedan, Operator'S Manual

Page: 133 / 356

begin to fog on the inside, switching off the
air recirculation mode immediately should
clear interior window fogging. If interior
window fogging persists, make sure the air
conditioning is activated, or press the
¬
button.
X
Turn the SmartKey to position 2 in the
ignition lock.
X
To activate: press the
g
button.
The indicator lamp in the
g
button lights
up.
i In the event of high pollution levels
14
or at
high outside temperatures, air-
recirculation mode is automatically
activated. When air-recirculation mode is
activated automatically, the indicator lamp
in the
g
button is not lit.
Outside air is added after about 30
minutes.
X
To switch off: press the
g
button.
The indicator lamp in the
g
button goes
out.
i
Air-recirculation mode deactivates
automatically:
R
after approximately five minutes if
outside temperatures are less than about
41 ‡ (5 †)
R
after approximately five minutes if
cooling with air dehumidification is
deactivated
R
after approximately 30 minutes if outside
temperatures are over about
41 ‡ (5 †)
Activating/deactivating the residual
heat function
The residual heat function is only available in
vehicles for Canada with automatic climate
control.
It is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the temperature that has
been set.
i The blower will run at a low speed
regardless of the airflow setting.
i
If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
X
Turn the SmartKey to position 0 in the
ignition lock or remove it.
X
To activate: press the
Ì
button.
The indicator lamp in the
Ì
button lights
up.
X
To switch off: press the
Ì
button.
The indicator lamp in the
Ì
button goes
out.
i
Residual heat is deactivated
automatically:
R
after about 30 minutes
R
when the ignition is switched on
R
if the battery voltage drops
R
if the coolant temperature is too low
Setting the air vents
Important safety notes
G
WARNING
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature). This
could cause burns or frostbite to unprotected
skin in the immediate area of the air vents.
Always keep sufficient distance between
unprotected parts of the body and the air
vents. If necessary, use the air distribution
adjustment to direct the air to air vents in the
14 Automatic climate control only.
Setting the air vents
131
Climate control
Z