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Controls in detail
Automatic climate control
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.
Activating
̈ Turn the key in the steering lock to
position 0 or 1 (
୴ page 33).
̈ Press button ° (୴ page 135).
The indicator lamp on button °
comes on.
Deactivating
̈ Press button °.
The indicator lamp on button °
goes out.
!
If the ° button on the automatic
climate control panel starts to flash,
this indicates that the air conditioning
system is losing refrigerant. The com-
pressor has turned itself off. The air
conditioning cannot be turned on
again.
Have the air conditioning system
checked at the nearest authorized
Mercedes-Benz Light Truck Center.
i
How long the system will provide heat-
ing depends on the coolant tempera-
ture and the temperature set in the
climate control. The blower will run at
lower speed regardless of the air vol-
ume control setting.
i
The residual heat is automatically
turned off:
ț when the ignition is switched on
ț after about 30 minutes
ț if the coolant temperature is too
low
ț if the battery voltage drops