R
Use the residual heat function if you want to
heat or ventilate the vehicle interior when
the ignition is switched off. The residual
heat function can only be activated or deac-
tivated with the ignition switched off.
R
Vehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for three sec-
onds at the bottom of the screen in the
COMAND display. You will see the current
settings of the various climate control func-
tions.
ECO start/stop function
During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require full climate
control capacity, the ECO start/stop function
can be deactivated by pressing the ECO but-
ton (
Y
page 130).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the
air supply and air circulation are also switched
off. The windows could fog up. Therefore,
switch off climate control only briefly
i
Activate climate control primarily using the
Ã
button (
Y
page 119).
Activating/deactivating
X
Turn the SmartKey to position
2
in the igni-
tion lock (
Y
page 126).
X
To activate: press the
Ã
button.
The indicator lamp in the
Ã
button lights
up. Airflow and air distribution are set to
automatic mode.
or
X
Press the
^
button.
The indicator lamp in the
^
button goes
out. The previously selected settings are
restored.
X
To deactivate: press the
^
button.
The indicator lamp in the
^
button lights
up.
Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate the "Cooling with air-dehu-
midification" 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, deactivate the
cooling with air-dehumidification function only
briefly.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a malfunc-
tion.
Activating/deactivating
X
To activate: press the
¿
button.
The indicator lamp in the
¿
button lights
up.
X
To deactivate: press the
¿
button.
The indicator lamp in the
¿
or
Á
but-
ton goes out. The "Cooling with air dehumid-
ification" function has a delayed switch-off
feature.
The indicator lamp in the
¿
button goes
out. The "Cooling with air dehumidification"
function has a delayed switch-off feature.
118
Operating the climate control systems
Cli
mat
e
co
ntrol
Summary of Contents for SL 450 2019
Page 330: ...328...
