Residual Heat And Ventilation; Rear Window Defroster - Mercedes-Benz CL Operator's Manual

Rear window defroster

344
G
Warning!
Fogged windows impair visibility,
endangering you and others. If the windows
begin to fog on the inside, switching off the
air recirculation mode immediately should
clear interior window fogging. If interior
window fogging persists, make sure the air
conditioning is activated, or press button
¬.
X
Activating: Press rocker switch g up or
down.
The indicator lamp in the rocker switch
comes on.
i The air recirculation mode is activated
automatically at high outside
temperatures.
The indicator lamp in rocker switch g is
not lit when the air recirculation mode is
switched on automatically.
A quantity of outside air is added when the
cooling demand is not at maximum.
If the air conditioning has been turned off
or the outside temperature is below 41‡
(5†), the air recirculation mode will not
switch on automatically.
X
Deactivating: Press rocker switch g up
or down.
The indicator lamp in the rocker switch
goes out.
The manually selected air recirculation
i
mode is deactivated automatically:
after 5 minutes if the outside
R
temperature is below approximately
41‡ (5†)
after 5 minutes if the air conditioning is
R
turned off
after 30 minutes if the outside
R
temperature is above approximately
41‡ (5†)

Residual heat and ventilation

With the engine turned 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 If you switch on the residual heat function
when outside temperatures are high, only
the ventilation will be switched on.
i
Regardless of the selected air volume, the
blower operates at low speed when
heating. In case of ventilation the blower
operates at higher speed.
i How long the system will provide heating
depends on the coolant temperature and
the selected temperature. The blower will
run at low speed regardless of the air
distribution control setting.
X
Activating: Switch off the ignition.
X
Press rocker switch Ì up or down.
The indicator lamp in the rocker switch
comes on.
X
Deactivating: Press rocker switch Ì up
or down.
The indicator lamp in the rocker switch
goes out.
The residual heat is deactivated
automatically:
when the ignition is switched on
R
after approximately 30 minutes
R
if the battery voltage drops
R
if the coolant temperature is too low
R
Rear window defroster
G
Warning!
Any accumulation of snow and ice should be
removed from the rear window before driving.
Visibility could otherwise be impaired,
endangering you and others.