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X
Press the s or r button to select the
day.
X
Press button ù.
X
Press the s or r button to set the
hour.
X
Press button ù.
X
Press the s or r button to set the
minute.
X
Press button ù.
X
Set the temperature using the s or
r button.
X
Press button ù.
Display shows the temperature, the ù
timer symbol and the selected memory
position.
X
For optimal air distribution in the cab, open
the central and side vents.
X
Switch the ignition lock to position 0 and
remove the key.
The auxiliary air conditioning is activated
automatically at the set switch-on time. If
the indicator lamps in button q in the
control panel and Æ in the additional
button by the bed/berth light up, the aux-
iliary air conditioning is activated.
Auxiliary air conditioning is deactivated auto-
matically after approximately 2 hours or when
the engine is started.
Auxiliary heating
Important safety notes
G
DANGER
If the exhaust pipe is blocked or sufficient
ventilation is not possible, toxic exhaust
fumes may enter the vehicle, especially car-
bon monoxide. This is the case in enclosed
spaces or if the vehicle is stuck in snow, for
example. There is a risk of fatal injuries.
Switch off the auxiliary heating in enclosed
spaces without extraction systems, e.g. in a
garage. If the vehicle is stuck in snow and you
have to leave the auxiliary heating running,
keep the exhaust pipe and the area around the
Auxiliary heating
vehicle clear of snow. To guarantee a suffi-
cient supply of fresh air, open a window on the
side of the vehicle away from the wind.
G
WARNING
You could burn yourself on the exhaust pipe if
the auxiliary heating system has been run-
ning. There is a risk of injury.
Let the exhaust pipe cool down before carry-
ing out work on the auxiliary heating system.
! If the auxiliary heating has not been used
for an extended period, exposure to heat
and condensation can lead to deposits
forming in the auxiliary heating fuel system.
These deposits can cause the auxiliary
heating to malfunction. Have the auxiliary
heating checked and repaired at a qualified
specialist workshop before using it again.
! The auxiliary heating system should be
switched on once a month for approx-
imately 15 minutes. Otherwise, the auxili-
ary heating could be damaged.
The auxiliary heating system operates inde-
pendently of the engine and complements the
vehicle heating. Auxiliary heating can also be
switched on when the engine is running and
at low outside temperatures to support the
heating (heater booster function).
Auxiliary heating is operated using the control
panel of the heating, air-conditioning system
or automatic climate control (
using the bed/berth switch panel.
Auxiliary heating heats the cab. If your vehicle
is equipped with an engine preheating sys-
tem, auxiliary heating can also heat the cool-
ant. The engine preheating system therefore
also reduces the load on the engine and saves
fuel. Auxiliary heating can be activated/deac-
tivated manually or up to 2 switch-on times
can be defined.
If auxiliary heating is activated manually or via
the switch-on times, auxiliary air conditioning
(
Y
page 131) and residual engine heat utilisa-
tion (
Y
page 130) are deactivated automati-
cally.
133
Y
page 124) or
Z
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