Mercedes-Benz E-Class Saloon Owner's Manual page 171

Operating the climate control system
168
Auxiliary heating
Important safety notes
G DANGER
If the exhaust pipe is blocked or sufficient
ventilation is not possible, toxic exhaust
fumes can enter the vehicle, especially car-
bon monoxide. This is the case, e.g. in
enclosed spaces, or if the vehicle is stuck in
snow. There is a risk of fatal injuries.
You should switch off the auxiliary heating in
enclosed spaces which do not have an extrac-
tion system, e.g. a garage. If the vehicle is
stuck in snow and you must leave the auxiliary
heating running, keep the exhaust pipe and
the area around the vehicle clear of snow. To
guarantee a sufficient supply of fresh air, open
a window on the side of the vehicle away from
the wind.
G WARNING
When the auxiliary heating is switched on,
parts of the vehicle can become very hot.
Flammable materials such as leaves, grass or
twigs may ignite if they come into contact
with:
hot parts of the exhaust system
R
the exhaust gas itself
R
There is a risk of fire.
When the auxiliary heating is switched on,
make sure that:
no flammable materials come into contact
R
with hot vehicle components
the exhaust gas can escape from the
R
exhaust pipe unhindered
the exhaust gas does not come into contact
R
with flammable materials.
The auxiliary heating and the exhaust gas dis-
charge location can be found in front of the
right-hand front wheel.
! Operating the auxiliary heating/ventila-
tion draws on the vehicle battery. After you
have heated or ventilated the vehicle a
maximum of two times, drive for a longer
distance.
i
Switch the auxiliary heating on regularly
once a month for about ten minutes.
The auxiliary heating heats the air in the vehi-
cle interior to the set temperature. This
occurs without using the heat of the running
engine. The auxiliary heating is operated
directly using the vehicle's fuel. For this rea-
son, the tank content must be at least at
reserve fuel level to ensure that the auxiliary
heating functions.
The auxiliary heating/ventilation automati-
cally adjusts to changes in temperature and
weather conditions. For this reason, the aux-
iliary heating could switch from ventilation
mode to heating mode or from heating mode
to ventilation mode.
The auxiliary heating switches off automati-
cally after 50 minutes. This time limit can be
altered. To do this, visit a qualified specialist
workshop.
You cannot use the auxiliary ventilation to
cool the vehicle interior to a temperature
lower than the outside temperature.
Before switching on
Turn the key to position 2 in the ignition
X
lock ( page 179).
Y
Set the desired temperature.
X
Auxiliary heating or auxiliary ventilation can
also be switched on if the manually set cli-
mate control is activated. Optimum comfort
is attained by setting the system to automatic
mode. Set the temperature to 22 †.
The auxiliary heating or auxiliary ventilation
can be switched on/off using the button on
the centre console or the remote control.
The on-board computer can be used to spec-
ify up to three departure times, one of which
may be preselected ( page 293).
Y