Mercedes-Benz S-Class Saloon 2021 Owner's Manual page 194

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Vehicles with a 48-V on-board electrical sys-
#
tem: press button 1.
The red or blue indicator lamp on button
will light up or go out.
Plug-in hybrid: press & on the climate bar
#
of the central display.
The red or blue indicator lamp below & on
the climate bar on the central display will light
up or go out.
Set the temperature using the arrows w
#
on the climate bar on the central display.
The colours of the indicator lamp have the follow-
ing meanings (plug-in hybrid):
Blue:
Blue: Ventilation or cooling mode is switched
R
on.
R R ed:
ed: Heating mode is switched on.
R
The colours of the indicator lamp have the follow-
ing meaning (vehicles with a 48 V on-board elec-
trical system):
Blue: Ventilation or cooling mode is switched
Blue:
R
on.
R R ed:
ed: Heating mode is switched on.
R
Y Y ellow:
ellow: the departure time is preselected.
R
1
S S t t ationar
ationary heat
y heater/v
er/ventilation
entilation
S S t t ationar
ationary heat
y heater/v
er/ventilation function
entilation function
%
The following function is equipment-depend-
ent.
The air inside the vehicle is heated or ventila-
R
ted to the set temperature.
The air inside the vehicle cannot be cooled
R
down to temperatures below the outside tem-
perature.
If the outside temperature changes, ventilation
R
mode automatically switches to heating mode
or heating mode automatically switches to
ventilation mode.
The stationary heater and the exhaust gas outlet
are situated behind the right-hand front wheel.
Climate control 191
Switching t
Switc
hing the st
he stationar
ationary heat
y heater/v
er/ventilation
via the oper
via t
he operating unit
ating unit
& D D AN
ANGER
GER Risk of fatal injury due to poison-
ous exhaust gases
If the tailpipe is blocked or su cient ventila-
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter the vehi-
cle. This is the case in enclosed spaces or if
the vehicle gets stuck in snow, for example.
Always switch the stationary heater o in
#
enclosed spaces without an air extrac-
tion system, e.g. in garages.
Keep the tailpipe and the area around
#
the vehicle free from snow when the
vehicle or the auxiliary heating is run-
ning.
Open a door or a roof hatch on the wind-
#
ward side of the vehicle to ensure an
adequate supply of fresh air.
191
entilation on/o
on/o

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S class 2021

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