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185
Controls in detail
Automatic climate control
Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condi-
tioning.
̈ Press button 2 or 9
(
୴ page 175) again.
The indicator lamp on the button
comes on.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.
Residual heat and ventilation
(Canada only)
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
Activating
̈ Switch off the ignition (୴ page 32).
̈ Press button 9 (୴ page 175).
The indicator lamp on the button
comes on.
Deactivating
̈ Press button 9 (୴ page 175).
The indicator lamp on the button goes
out.
The residual heat is automatically turned
off:
ț when the ignition is switched on
ț after about 30 minutes
ț if the battery voltage drops
!
If the air conditioning cannot be turned on
again, this indicates that the air conditioning is
losing refrigerant. The compressor has turned it-
self off.
Have the air conditioning checked at the nearest
authorized Mercedes-Benz Center.
i
How long the system will provide heating de-
pends on
ț the coolant temperature
ț the temperature set by the operator
The blower will run at speed setting 1 regardless
of the air distribution control setting.