2015 MERCEDES-BENZ E-CLASS CABRIOLET Owners Manual

Activating/deactivating
X
Turn the key to position 2in the ignition lock
(Y page 139).
X To activate: press theÃbutton.
The indicator lamp above the Ãbutton
lights up. Airflow and air distribution are set to automatic mode.
X To switch off: press the^button.
The indicator lamp above the ^button
lights up. 126
Operating the climate control systemClimate cont
rol

Activating/deactivating cooling with air dehumidification
General notes If you deactivate the "Cooling with air dehumidification" function, the air inside the vehicle will not
be cooled. The air inside the vehicle will also not be dehumidified. The windows can mist up more
quickly. Therefore, deactivate the "Cooling with air dehumidification" function only briefly.
The "Cooling with air dehumidification" function is only available when the engine is running. The air inside the vehicle is cooled and dehumidified according to the temperature selected.
Condensation may drip from the underside of the vehicle when cooling mode is active. This is normal
and not a sign that there is a malfunction.
Activating/deactivating X
To switch on: press the¿button.
The indicator lamp above the ¿button lights up.
i In vehicles with auxiliary heating, one of the indicator lamps on the auxiliary heating button lights
up when the "Cooling with air dehumidification" function is activated.
X To switch off: press the¿button.
The indicator lamp above the ¿button goes out. The cooling with air dehumidification function
has a delayed switch-off feature.
Problems with the "Cooling with air dehumidification" function Problem
Possible causes/consequences and
M MSolutions The indicator lamp over
the
¿ button flashes
three times or remains
off. The cooling with air
dehumidification func-
tion cannot be activated. The cooling with air dehumidification function has been deactivated
due to a malfunction.
X Consult a qualified specialist workshop. Setting climate control to automatic
mode
General notes In automatic mode, the set temperature is main-
tained automatically at a constant level. The
system automatically regulates the temperature of the dispensed air, the airflow and the air dis- tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode. Automatic control X
Turn the key to position 2in the ignition lock
(Y page 139).
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lamp above the Ãbutton
lights up. Automatic air distribution and air-
flow are activated.
i THERMOTRONIC automatic climate control:
when automatic mode is activated, you can
set the climate mode (Y page 128).
X To switch to manual mode:
THERMATIC automatic climate control: press
air distribution adjustment switch F
(Y page 124). Operating the climate control system
127Climate control

THERMOTRONIC automatic climate control:
press air distribution adjustment switch I
(Y page 124).
The indicator lamp above the Ãbutton
goes out.
or X THERMATIC automatic climate control: press
airflow adjustment switch G(Ypage 124).
THERMOTRONIC automatic climate control:
press airflow adjustment switch H
(Y page 124).
The indicator lamp above the Ãbutton
goes out. Setting the climate mode
The "Set climate mode" function is only available
with THERMOTRONIC automatic climate con-
trol.
In automatic mode you can select the following
climate modes:
FOCUS high airflow, slightly cooler setting
MEDIUM medium airflow, standard setting
DIFFUSE low airflow, slightly warmer and draught-free setting
X Turn the key to position 2in the ignition lock
(Y page 139).
X Press the Ãbutton.
X Press climate mode selection button Gup or
down and select the desired level
(Y page 124). Setting the temperature
THERMATIC automatic climate control Different temperatures can be set for the driv-
er's and front-passenger sides.
X Turn the key to position 2in the ignition lock
(Y page 139).
X To increase or reduce the temperature in
the front compartment: press temperature
adjustment switch EorH up or down
(Y page 124).
Only change the temperature setting in small
increments. Start at 22 †. THERMOTRONIC automatic climate
control You can select different temperature settings
for the driver's and front-passenger sides as well
as for the rear compartment.
X Turn the key to position 2in the ignition lock
(Y page 139).
X To increase or reduce the temperature in
the front compartment: press temperature
adjustment switch ForJ up or down
(Y page 124).
Only change the temperature setting in small
increments. Start at 22 †.
X To increase or reduce the temperature in
the rear compartment using the front con-
trol panel: press theábutton.
The indicator lamp above the ábutton
goes out.
X Press temperature adjustment switch For
J up or down (Y page 124).
Only change the temperature setting in small
increments. Start at 22 †.
X To increase or reduce the temperature in
the rear compartment using the rear con-
trol panel: press therors button on
the rear control panel.
Only change the temperature setting in small
increments. Start at 22 †. Setting the air distribution
Air distribution settings P
Directs the airflow through the centre
and side air vents
O Directs the airflow through the footwell
air vents
S Directs the airflow through the centre
and side air vents as well as the footwell
air vents
¯ Directs the airflow through the demister
vents
b Directs the airflow through the demister,
centre and side air vents (Cabriolet only)
a Directs the airflow through the footwell
and demister vents
_ Directs the airflow through the demister
vents, the centre and side air vents as
well as the footwell air vents 128
Operating the climate control systemClimate control

i
Regardless of the air distribution setting,
airflow is always directed through the side air
vents. The side air vents can only be closed
when the controls on the side air vents are
turned downwards.
Setting the air distribution X
Turn the key to position 2in the ignition lock
(Y page 139).
X THERMATIC automatic climate control: press
air distribution adjustment switch Fup or
down, until the desired symbol appears in the
display (Y page 124).
X THERMOTRONIC automatic climate control:
press air distribution adjustment switch Iup
or down, until the desired symbol appears in
the display (Y page 124). Setting the airflow
THERMATIC automatic climate control X
Turn the key to position 2in the ignition lock
(Y page 139).
X To increase or reduce: press airflow adjust-
ment switch Gup or down (Y page 124).
THERMOTRONIC automatic climate
control X
Turn the key to position 2in the ignition lock
(Y page 139).
X To increase or reduce: press airflow adjust-
ment switch Hup or down (Y page 124).
If the battery is not charged sufficiently, the
blower output may be reduced. Once the battery
is sufficiently charged again, full blower output
will be available. Switching the ZONE function on/off
X To activate: press theábutton.
The indicator lamp above the ábutton
lights up.
THERMATIC automatic climate control: the
temperature setting for the driver's side is not
adopted for the front-passenger side.
THERMOTRONIC automatic climate control:
the temperature setting for the driver's side is not adopted for the front-passenger side and
the rear compartment.
X To deactivate: press theábutton.
The indicator lamp above the ábutton
goes out.
THERMATIC automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side.
THERMOTRONIC automatic climate control:
the temperature setting for the driver's side is adopted for the front-passenger side and the
rear compartment. Demisting the windscreen
You can use this function to defrost the wind-
screen or to demist the inside of the windscreen and the side windows.
Switch off the windscreen demisting function as
soon as the windscreen is clear again.
X Turn the key to position 2in the ignition lock
(Y page 139).
X To activate: press the¬button.
The indicator lamp above the ¬button
lights up.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windscreen and front
side windows
R air-recirculation mode off
If the battery is not charged sufficiently, the
blower output may be reduced. Once the battery is sufficiently charged again, full blower output
will be available again.
X To deactivate: press the¬button.
The indicator lamp above the ¬button
goes out. The previous settings are reactiva-
ted. Air-recirculation mode remains deactiva- ted. Demisting the windows
Windows misted up on the inside X
Activate the ¿cooling with air dehumidi-
fication function.
X Activate automatic mode Ã. Operating the climate control system
129Climate control

X
Adjust the side air vents so that the heated air
is directed towards the side windows.
X If the windows continue to mist up, activate
the "Windscreen demisting" function ¬.
i You should only select this setting until the
windscreen is clear again.
Windows misted up on the outside X
THERMATIC automatic climate control: press
air distribution adjustment switch Fup or
down (Y page 124), until the PorO
symbol appears in the display.
X THERMOTRONIC automatic climate control:
press air distribution adjustment switch Iup
or down (Y page 124), until the PorO
symbol appears in the display.
X Adjust the side air vents so that no air is
directed towards the side windows. Rear window heating
General notes The rear window heating has a high current
draw. You should therefore switch it off as soon
as the window is clear. It otherwise switches off automatically after several minutes.
If the battery voltage is too low, the rear window
heating may switch off.
Switching on/off X
Turn the key to position 2in the ignition lock
(Y page 139).
X Press the ¤button.
The indicator lamp above the ¤button
lights up or goes out. 130
Operating the climate control systemClimate control

Problems with the rear window heating
Problem
Possible causes/consequences and
M
MSolutions The rear window heating
has switched off prema-
turely or cannot be acti-
vated. The battery has not been sufficiently charged.
X Switch off any consumers that are not required, e.g. reading lamps,
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window heating
can be activated again. Switching air-recirculation mode
on/off
General notes You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle from
outside. The air already inside the vehicle will
then be recirculated.
If you activate air-recirculation mode, the win-
dows can mist up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows misting up.
Activating/deactivating X
Turn the key to position 2in the ignition lock
(Y page 139).
X To activate: press thegbutton.
The indicator lamp above the gbutton
lights up.
X To deactivate: press thegbutton.
The indicator lamp above the gbutton
goes out.
i Air-recirculation mode is deactivated auto-
matically:
R after approximately five minutes at outside
temperatures below approximately 5 †
R after approximately five minutes if cooling
with air dehumidification is deactivated
R after approximately 30 minutes at outside
temperatures above approximately 5 † if
the "Cooling with air dehumidification"
function is activated Convenience opening or closing using
the air-recirculation button G
WARNING
When using convenience closing, you could
become trapped within the sweep of the clos- ing window. There is a risk of injury.
Monitor the entire closing procedure when
using convenience closing. When closing,
make sure that no one has any parts of the
body within the closing area. G
WARNING
During convenience opening parts of the body could be drawn in or become trapped
between the side window and window frame.
There is a risk of injury.
When opening, make sure that nobody is
touching the side window. If someone
becomes trapped, immediately press
the W switch in the door to stop the move-
ment of the side windows. To continue closing
the side window, pull on the Wswitch.
X Convenience closing feature: press and
hold the gbutton until the side windows
are closed.
The indicator lamp above the gbutton
lights up. Air-recirculation mode is activated.
If parts of the body are in the closing area during convenience closing, proceed as follows:
X Press the Wbutton to stop the side win-
dows.
The side windows stop.
X To then open the side windows, press the
W button again.
i Notes on the reversing feature for the side
windows (Y page 85) Operating the climate control system
131Climate control Z

X
Convenience opening feature: press and
hold the gbutton until the side windows
are opened. The side windows move back to
their original positions.
The indicator lamp above the gbutton
goes out. Air-recirculation mode is deactiva-
ted.
i If you open the side windows manually after
closing them using the convenience closing
feature, they will remain in this position when
opened using the convenience opening fea-
ture. Switching the residual heat on/off
General notes It is possible to make use of the residual heat of
the engine to continue heating the vehicle for
approximately 30 minutes after the engine has
been switched off. The heating time depends on
the set interior temperature.
The "residual heat" function only functions opti- mally with the side windows closed.
The "residual heat" function only functions opti-
mally with the soft top closed.
Activating/deactivating X
Turn the key to position 0in the ignition lock
or remove it (Y page 139).
X To switch on: press theÌbutton.
The indicator lamp above the Ìbutton
lights up.
i If the residual heat function is switched on,
the windows may mist up on the inside.
i The blower will run at a low speed regardless
of the airflow setting.
i If you activate the residual heat function at
high temperatures, only the ventilation will be
activated. The blower runs at medium speed.
X To switch off: press theÌbutton.
The indicator lamp above the Ìbutton
goes out.
Residual heat is deactivated automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R when the auxiliary heating is switched on 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:
R hot parts of the exhaust system
R the exhaust gas itself
There is a risk of fire.
When the auxiliary heating is switched on,
make sure that:
R no flammable materials come into contact
with hot vehicle components
R the exhaust gas can escape from the
exhaust pipe unhindered
R the exhaust gas does not come into contact
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/ventilation
draws on the vehicle battery. After you have
heated or ventilated the vehicle a maximum of two times, drive for a longer distance. 132
Operating the climate control systemClimate control

i
Switch the auxiliary heating on regularly
once a month for about ten minutes.
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/ventilation automatically
adjusts to changes in 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 heating switches off automatically 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 X
Turn the key to position 2in the ignition lock
(Y page 139).
X Set the desired temperature.
Auxiliary heating or auxiliary ventilation can also
be switched on if the manually set climate con-
trol 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 specify
up to three departure times, one of which may
be preselected (Y page 226). Switching the auxiliary heating/venti-
lation on or off using the button on the
centre console The colours of the indicator lamps in button
:
mean the following:
R blue: auxiliary ventilation is switched on
R red: auxiliary heating is activated
R yellow: departure time is preselected
(Y page 226)
X To switch on the auxiliary heating or aux-
iliary ventilation:
press button:.
The red or blue indicator lamp in button :
lights up.
X To switch off the auxiliary heating or aux-
iliary ventilation: press button:.
The red or blue indicator lamp in button :
goes out.
Switching the auxiliary heating/venti-
lation on or off using the remote control General notes
Your vehicle comes with one remote control.
You may use two additional remote controls for your vehicle. For more information, please con-
tact a qualified specialist workshop.
Store the remote control for the auxiliary heat-
ing so that the auxiliary heating cannot be
switched on unintentionally. In particular,
ensure that the remote control for the auxiliary
heating is kept out of the reach of children.
The remote control has a range of approximately
300 metre s. Thisrange is reduced by:
R sources of radio interference
R solid objects between the remote control and
the vehicle Operating the climate control system
133Climate control Z