Mercedes-Benz S-Class Saloon W223 2021 Owner's Manual page 179

To switch on: select Residual heat
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mate bar on the central display.
Residual heat will be switched off automatically.
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If residual engine heat utilisation is activated,
the two buttons for setting the temperature
and air distribution are automatically deactiva-
ted.
Switching residual heat on/off via the rear operat-
ing unit
Requirements:
The residual heat function is available.
R
The vehicle is parked.
R
The coolant temperature must be sufficiently
R
high.
When the residual heat of the engine is activated
in the rear compartment, you can heat or ventilate
the front and rear compartments for approx-
imately 15 minutes.
Press button Ì .
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on the cli- Activating/deactivating ionisation
Multimedia system:
Climate menu
4
Ionisation improves the quality of the vehicle's
interior air. Ionisation of the interior air is odour-
less.
Select Ionisation.
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% The function can only be performed if the
AUTO mode is activated or the air distribution
is set to the side air vent. The function is
restricted if the side air vents on the driver's
side are closed.
Fragrance system
▌Setting the fragrance system
Requirements:
A flacon is inserted.
R
The glove compartment is closed.
R
Climate control is activated.
R
Air quality
5
P223 0288 02
Climate control 177
Multimedia system:
Climate menu Air quality
4 5
The fragrance system distributes a pleasant fra-
grance throughout the vehicle interior from a fla-
con located in the glove compartment.
Select Air freshener.
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Keep pressing until the desired intensity is
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reached.
▌Inserting or removing the flacon of the fra-
grance system
& WARNING Risk of injury from liquid per-
fume
If children open the flacon, they could drink
the liquid perfume or it could come into con-
tact with their eyes.
Do not leave children unattended in the
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vehicle.
Consult a doctor immediately if liquid
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perfume has been drunk.