Mercedes-Benz CLK-Class Owner's Manual page 169

Controls in detail
Thermotronic* (intelligent air conditioning)
Thermotronic is only operational when the
engine is running. Optimum performance
is only guaranteed if you drive with the win-
dows and sliding/tilting sunroof* closed.
You can switch off Thermotronic com-
pletely if required ( page 167).
You can allow the air conditioning to adjust
automatically ( page 167) or you can
control it manually ( page 168).
In automatic mode, Thermotronic cools or
heats the vehicle interior depending on:
the temperature selected
outside temperature
sunlight
The combination filter installed filters out
all:
dust particles of a certain size
pollen
166
i
The interval for replacing the filter depends
upon environmental influences, such as high lev-
els of air pollution. The interval may be shorter
than that specified in the Service Booklet. A filter
reduces the quantity of air supplied to the vehi-
cle interior.
In warm weather, ventilate the vehicle
for a short time, e.g. using the summer
opening feature ( page 183).
This ensures that the desired interior
temperature is achieved more rapidly.
i
Observe the following instructions to ensure
that Thermotronic functions correctly:
Keep the air inlet on the bonnet free from
deposits, e.g. ice or snow, to ensure the flow
of fresh air to the vehicle interior.
Make sure that the air vents and ventilation
grilles in the vehicle interior are always kept
clear.
G
Risk of accident
Follow the settings recommended on the fol-
lowing pages for heating or cooling. The win-
dows could otherwise mist up. As a result, you
may no longer be able to observe road and
traffic conditions and cause an accident.
i
Condensation may drip from the underside
of the vehicle when Thermotronic is in cooling
mode.
H
Environmental note
The cooling system uses the refrigerant
R134A. This refrigerant does not damage
the earth's ozone layer.