Switching Air Recirculation Mode On/Off; Switching Residual Engine Heat Utilisation On/Off - Mercedes-Benz Actros Operating Instructions Manual

Switching residual engine heat utilisation on/off

130
Heating/air-conditioning system
Only use the following settings until the wind-
screen and windows are clear again.
X
Set temperature control = to z
( Y page 124).
X
Set air-distribution control A to
M z.
X
Turn airflow control : to position 5.
X
Close the centre air vents (
X
Turn the thumbwheel on the side air vent all
the way outwards past the detent to the
z position (
Automatic climate control and heat-
ing/air-conditioning system with aux-
iliary heating
Only use the following settings until the wind-
screen and windows are clear again.
The defrost function automatically:
switches the temperature to
R
deactivates air-recirculation mode
R
sets the airflow to maximum
R
guides air distribution towards the wind-
R
screen and the window.
X
To switch on: press the z button.
The indicator lamp in the button lights up.
X
Turn the thumbwheel on the side air vent all
the way outwards past the detent to the
z position (
X
To deactivate: press button z.
The indicator lamp in the button goes out.
The previous settings for the airflow and the
air distribution come into effect again.
or
X
Press one of the à buttons on the auto-
matic climate control panel.
The indicator lamp in the z button goes
out. The indicator lamps in the à but-
tons light up. Automatic climate control
automatically controls all basic functions
( Y page 127).
Y page 128).
Y page 128).
HI
Y page 128).
Switching air recirculation mode
on/off
If you switch the air-recirculation mode on,
the windscreens may mist up more quickly,
especially at low outside temperatures. Only
switch air-recirculation mode on for a short
time.
Switch the flow of fresh air off temporarily and
switch on air-recirculation mode if there are
unpleasant odours or in dusty conditions.
X
Close the window, roof hatch, pop-up roof
or sliding sunroof.
X
Press the ø button.
If the indicator lamp in the button lights up,
air-recirculation mode is activated.
The automatic air conditioning system
i
also measures the concentration of carbon
monoxide and nitrogen dioxides in the out-
side air. Depending on the results of these
measurements, the automatic air condi-
tioning system switches the air-recircula-
tion mode on and off for you automatically
in the background.
Switching residual engine heat uti-
lisation on/off
On vehicles with residual engine heat utilisa-
tion, you can use the residual heat of the
engine to heat the vehicle for up to
90 minutes when stopped.
If you deactivate residual engine heat utilisa-
tion, the auxiliary air conditioning system
( Y page 131) and the auxiliary heating sys-
tem ( Y page 134) are deactivated automati-
cally.