Mercedes-Benz E-Class Coupe Operator's Manual page 147

Otherwise, the windows could fog up, thus
impairing visibility and endangering yourself
and others. This may prevent you from
observing the traffic conditions and thereby
cause an accident.
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the
vehicle will then be recirculated.
The operation of air-recirculation mode is the
same for all control panels.
X
Turn the SmartKey to position 2 in the
ignition lock.
X
To activate: press the g button.
The indicator lamp above the g button
lights up.
i
In the event of high pollution levels
high outside temperatures, air-
recirculation mode is automatically
activated. When air-recirculation mode is
activated automatically, the indicator lamp
above the g button does not light up.
Outside air is added after about
30 minutes.
X
To deactivate: press the g button.
The indicator lamp above the g button
goes out.
Air-recirculation mode deactivates
i
automatically:
after approximately five minutes at
R
outside temperatures below
approximately 41 ‡ (5 †)
after approximately five minutes if
R
cooling with air dehumidification is
deactivated
after approximately 30 minutes at
R
outside temperatures above
approximately 41 ‡ (5 †)
1 Automatic climate control only.
Operating the climate control systems
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.
Coupe: the residual heat function only works
optimally if the side windows and panorama
roof with power tilt/sliding panel are closed.
Cabriolet: the residual heat function only
works optimally if the soft top is closed.
X
To activate: press the Ì button.
1
or at
The indicator lamp above the Ì button
lights up.
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
To deactivate: press the Ì button.
The indicator lamp above the Ì button
goes out.
i It is possible that the residual heat
function may be activated automatically an
hour after the SmartKey is removed. The
vehicle is then ventilated for 30 minutes to
dry the air-conditioning system.
Residual heat is deactivated automatically:
after approximately 30 minutes
R
when the ignition is switched on
R
if the battery voltage drops
R
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