Residual Heat And Ventilation - Mercedes-Benz G 500 Operator's Manual

Controls in detail
Climate control
Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Press button 9 ( page 183) once
more.
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.
!
If the air conditioning cannot be turned on
again, this indicates that the air conditioning is
losing refrigerant. The compressor has turned
itself off.
Have the air conditioning checked at the nearest
authorized Mercedes-Benz Light Truck Center.
190

Residual heat and ventilation

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.
i
How long the system will provide heating
depends on
the coolant temperature
the battery voltage
Regardless of the temperature and air volume
set on the climate control panel, an interior
temperature is aimed at by 72°F (22°C) and the
blower runs on low speed to protect the vehicle
battery.
Activating
Turn the SmartKey in the starter switch
to position 0 or 1 ( page 39).
or
Remove the SmartKey from the starter
switch.
Press button 9 ( page 183).
The indicator lamp on the button
comes on.
Deactivating
Press button 9 ( page 183) once
more.
The indicator lamp on the button goes
out.
i The residual heat is automatically turned off:
when the ignition is switched on
after about 30 minutes
if the coolant temperature is too low
if the battery voltage drops