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Parts of the vehicle, e.g. the exhaust system,
may become very hot when the auxiliary heat-
ing system is switched on.
Flammable material, such as leaves, grass or
twigs, may ignite if it comes into contact with:
R
hot parts of the exhaust system
R
the exhaust gas itself
There is a risk of fire.
Make sure, when the auxiliary heating system
is switched on, that:
R
hot vehicle components do not come into
contact with flammable material
R
exhaust gases can emerge unobstructed
from the exhaust pipe
R
exhaust gases do not come into contact
with flammable material
The heating unit for the auxiliary heating is fitted
at the front of the vehicle underbody. The emis-
sions outlet is on the left side of the vehicle
below the front door.
Vehicles with an auxiliary warm-air heater:
If work on the heat exchanger of the auxiliary
warm-air heater is not performed correctly,
exhaust fumes could leak into the passenger
compartment. There is a risk of poisoning,
possibly even fatal.
You should have all work on the auxiliary
warm-air heater carried out at a qualified spe-
cialist workshop.
Your vehicle may be equipped with either a hot-
water auxiliary heater or an auxiliary warm-air
heater. Adjustment and operation of the:
R
hot-water auxiliary heater can be activated via
the
&
rocker switch in the control panel of
the climate control system, via Audio 20 or
COMAND Online or by using the remote con-
R
auxiliary warm-air heater can be activated via
the timer in the lower centre console
page 153) or via the remote control
!
Operating the hot-water auxiliary heater
draws from the vehicle battery. For this rea-
son, drive for a longer distance after using the
heater or ventilating the vehicle twice, at the
latest.
Always observe the important safety instruc-
tions when operating the auxiliary heating
The hot-water auxiliary heater complements the
climate control system of your vehicle and has a
heater booster function, an auxiliary heating
function and an auxiliary ventilation function. In
addition, the auxiliary heating system heats the
engine coolant to preserve the engine and save
fuel during the warming-up phase.
The auxiliary heating heats the air in the vehicle
interior to the set temperature. This occurs with-
out using the heat of the running engine. The
auxiliary heating is operated directly using the
vehicle's fuel. For this reason, the tank content
must be at least at reserve fuel level to ensure
that the auxiliary heating functions.
The auxiliary heating automatically adjusts to
changes in outside temperature and weather
conditions. For this reason, the auxiliary heating
could switch from ventilation mode to heating
mode or from heating mode to ventilation mode.
The auxiliary ventilation is not active if the
engine is running.
The auxiliary heating system switches off auto-
matically after a maximum of 50 minutes. This
period of time can be set at a qualified specialist
workshop.
You cannot use the auxiliary ventilation to cool
the vehicle interior to a temperature lower than
the outside temperature.
The heater booster function supports the cli-
mate control system when the engine is running
and the outside temperature is low.
146
Operating the auxiliary heating system
Climate control
Summary of Contents for V 200 4MATIC 2015
Page 1: ...V Class Operating Instructions...
Page 357: ...355...
Page 358: ...356...
Page 360: ...Order no 6463 7280 02 Part no 447 584 58 01 Z102 Edition 06 15 4475845801Z102H 4475845801Z102...