X
Turn the key to position 0in the ignition
lock or remove it.
X To switch on: press theÌbutton.
The indicator lamp in the Ìbutton lights
up.
X To deactivate: press theÌbutton.
The indicator lamp in the Ìbutton goes
out.
i Residual heat is deactivated automati-
cally:
R after about 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R if the coolant temperature is too low Auxiliary heating
Important safety notes G
Risk of poisoning
Exhaust fumes are produced when the auxili-
ary heating is in operation. Inhaling these
exhaust fumes can be poisonous. You should
therefore switch off the auxiliary heating in
confined spaces without an extraction sys-
tem, e.g. a garage. G
Risk of fire
When operating the auxiliary heating, parts of
the vehicle may become very hot, and highly
inflammable material such as fuels could be
ignited. Operating the auxiliary heating is thus
prohibited at filling station sorwhen your vehi-
cle is being refuelled. You must therefore
switch off the auxiliary heating at filling sta-
tions.
! 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 on the auxiliary heating regularly,
e.g. for about ten minutes every month. The auxiliary heating heats the air in the vehi-
cle interior to the set temperature without
using the heat of the running engine. The aux-
iliary heating is operated directly using the
vehicle's fuel. For this reason, the tank con-
tent 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, e.g. a Mercedes-Ben
zService
Centre.
You cannot use the auxiliary ventilation to
cool the vehicle interior to a temperature
lower than the outside temperature.
Before switching on X
Turn the key to position 2in the ignition
lock.
X Set the temperature.
The auxiliary heating/ventilation can be acti-
vated even when the climate control is being
controlled manually. Optimum comfort can
be attained when the system is set to auto-
matic mode. Set the temperature to 22 †.
The auxiliary heating/ventilation can be acti-
vated or deactivated using the remote control
or the button on the centre console.
The on-board computer can be used to spec-
ify up to three departure times, one of which
may be preselected (Y page 210). Operating the climate control system
119Climate control Z
Automatic engine start
The engine is started automatically if you:
R release the brake pedal when HOLD is not
activated and the transmission is in posi-
tion Dor N
R shif tthe transmission to position R
R depress the accelerator pedal
R switch off the ECO start/stop function by
pressing the ECO button (except for AMG
vehicles)
R change to drive program S,S+ orM(AMG
vehicles)
R unfasten your seat belt or open the driver's
door
The engine is also started automatically if:
R the vehicle starts to roll.
R the brake system requires this.
R the system detects moisture on the wind-
screen when the air-conditioning system is
switched on.
R the temperature in the vehicle interior devi-
ates from the set range.
R the battery's charge status is too low.
Switching the ECO start/stop function
off/on (except for AMG vehicles) :
To deactivate/activate the ECO start/
stop function
; Indicator lamp
X To deactivate: press button:.
Indicator lamp ;and the ECO symbol in
the multifunction display go out. X
To activate: press button :.
Indicator lamp ;lights up and the ECO
symbol is shown in green in the multifunc-
tion display.
If not all conditions are fulfilled, the ECO
symbol is shown in yellow in the multifunc-
tion display. If this is the case, the ECO
start/stop function is not available.
If indicator lamp ;is off, the ECO start/stop
function has been deactivated manually or as
the result of a malfunction. The engine will
then not be switched off automatically when
the vehicle stops.
i The ECO start/stop function is activated
each time the engine is switched on.
Switching the ECO start/stop function
off/on (AMG vehicles) Deactivating
X
Change to drive program S,S+ orM.
The ECO symbol goes out and the Stop/ Start deactivated message is shown in
the multifunction display.
Activating
X Change to drive program C.
If all conditions for automatic engine
switch-off (Y page 132) are fulfilled, the
ECO symbol is shown in green in the mul-
tifunction display. In addition, the Stop/ Start active message is shown in the
multifunction display.
If not all conditions for automatic engine
switch-off (Y page 132) are fulfilled, the
Stop/Start inactive message appears
and the ECO symbol is shown in yellow.
i Every time you restart the engine, the
automatic transmission switches to the
automatic drive program C. Driving
133Driving and parking Z
