2015 MERCEDES-BENZ C-CLASS COUPE lights

Switching the "Windscreen demisting"
function on or off
X
Turn the key to position 2in the ignition lock
(Y page 145).
X To switch on: press the¬rocker switch
on the front control unit up or down.
The indicator lamp above the ¬rocker
switch lights up. The current climate control
settings are deactivated.
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
i If necessary, the "Cooling with air dehumid-
ification" function is activated. In this case,
the indicator lamp above the ¿rocker
switch remains switched off.
X To switch off: press the¬rocker switch
up or down.
The indicator lamp above the ¬rocker
switch goes out. The previous settings are
reactivated. Air-recirculation mode remains
deactivated. Demisting the windows
Windows misted up on the inside X
Activate the "Cooling with air dehumidifica-
tion" function with the ¿rocker switch.
i For THERMOTRONIC automatic climate
control with auxiliary heating, the "Cooling
with air dehumidification" function can only
be activated using the multimedia system.
X Switch on automatic mode using the Ã
rocker switch.
X If the windows continue to mist up, activate
the windscreen demisting function using the
¬ rocker switch.
i You should only select this settingu
ntil the
windscreen is clear again. Windows misted up on the outside X
Switch on the windscreen wipers.
X Switch on automatic mode using the Ã
rocker switch.
i If you clean the windows regularly
,they do
not mist up so quickly. Rear window heating
General notes The rear window heating has
ahigh 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 the sound on/off X
Turn the key to position 2in the ignition lock
(Y page 145).
X Press the ¤rocker switch up or down.
The indicator lamp above the ¤rocker
switch lights up or goes out. 134
Operating the climate control systemClimatec
ontrol

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 also temporarily deactivate the flow of
fresh air manually if unpleasant odours are
enteringt he vehicle from outside. The air
already inside the vehicle will then be recircula-
ted.
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 145).
X To activate: press thegrocker switch up
or down.
The indicator lamp above the grocker
switch lights up.
Air-recirculation mode is activated automati-
cally:
R at high outside temperatures
R inat unnel (vehicles with anavigation system
only)
The indicator lamp above the grocker
switch is not lit when automatic air-recirculation mode is activated. Outside air is added after
approximately 30 minutes.
X To deactivate: press thegrocker switch
up or down.
The indicator lamp above the grocker
switch goes out. Air-recirculation mode is deactivated automati-
cally:
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 wit hair dehumidification" function is
activated Convenience opening or closing using
the air-recirculatio nbutton G
WARNING
When the convenience closing feature is oper- ating, parts of the body coul dbecome trapped
in the closing area of the side window and the
sliding sunroof. There is arisk of injury.
Observ ethe complete closing procedure
when the convenience closing feature is oper-
ating. When closing make sure that no parts of the body are in the closing area. G
WARNING
During convenience opening parts of the body coul dbed rawninorb ecome trapped
between the side window and window frame.
There is arisk of injury.
When opening, make sure that nobody is
touching the side window. If someone
become strapped, immediately press
the W switch in the door to stop the move-
ment of the side windows. To continue closing
the side window, pul lontheW switch. Operating the climate control system
135Climate control Z

!
Operating the auxiliary heating/ventilation
draws on the vehicle battery. After you have
heated or ventilated the vehicle amaximum of
two times, drive for alonger distance.
Switch the auxiliary heating on regularly once a
month for aboutt en 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 or auxiliary ventilation
automaticallya djusts to changes in tempera-
ture and weather conditions. For this reason,
the auxiliary heating could switch from ventila-
tion mode to heating mode or from heating
mode to ventilation mode.
The auxiliary heating switches off when the
engine is switched off. The auxiliary ventilation
is not active if the engine is running.
The auxiliary heating or auxiliary ventilation
switches off automaticallya fter 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 atemperature lower than
the outside temperature.
Before switchingon X
Turn the key to position 2in the ignition lock
(Y page 145).
X Set the desired temperature using the w
rocker switch on the front control unit.
If you do not alter the temperature before
switching on the auxiliary heating or auxiliary
ventilation, the last temperature setting will be
adopted.
Auxiliary heating or auxiliary ventilation can also
be switched on if the manuallys et climate con-
trol is activated. Optimum comfort is attained
when the system is set to automatic mode. Set the temperature to 22 †.
You can switch the auxiliary heating or auxiliary
ventilation on or off:
R using the rocker switch on the centrec onsole
(Y page 139)
R using the remote control (Y page 140)The remote control can be used to set up to
three departure times, one of which may be pre-
selected.
Switchingt he auxiliary heating/venti-
lation on/off using the centre console
rocker switch General notes
The colours of the indicator lamps in rocker
switch
:have the following meanings:
R blue: auxiliary ventilation is switched on
R red: auxiliary heating is activated
R yellow: departure time is preselected
Activating/deactivating
X To switch on auxiliary heating or auxiliary
ventilation: press rocker switch :up or
down.
The red or the blue indicator lamp above
rocker switch :lights up.
X To set the temperature: switch on auxiliary
heating or auxiliary ventilation.
The multimedia system is activated for
approximately one minute.
X Set the desired temperature using the multi-
media system (see the separate operating
instructions).
X To switch off auxiliary heating or auxiliary
ventilation:
press rocker switch :up or
down.
The red or the blue indicator lamp above
rocker switch :goes out. Operating the climatec
ontrol system
139Climatecontrol Z

To start the vehicle without actively using the
key:
R the Start/Stop button must be inserted in the
ignition lock
R the key must be in the vehicle
R the vehicle must not be locked with the key or
KEYLESS-GO (Y page 81)
Do not keep the key:
R with electronic devices, e.g. amobile phone
or another key
R with metallic objects, e.g. coins or metal film
R inside metallic objects, e.g. ametal case
This can affect the key's functionality.
If you lock the vehicle with the key's remote
control or with KEYLESS-GO, after ashort time:
R you will not be able to switch on the ignition
with the Start/Stop button
R you will not be able to start the engine with the
Start/Stop button until the vehicle is
unlocked again
If you lock the vehicle centrally using the button
on the front door (Y page 87), you can continue
to start the engine with the Start/Stop button.
The engine can be switched off while the vehicle
is in motion by pressing and holding the Start/
Stop button for three seconds. This function
operates independently of the ECO start/stop
automatic engine switch-off function.
Key positions with the Start/Stop button :
Start/Stop button
; Ignition lock
When you switch on the ignition, all of the indi-
cator lamps in the instrument cluster light up.
Further information on situations where an indi-
cator lamp either fails to go out after starting the engine or lights up while driving (Y page 286).If Start/Stop button
:has not yet been
pressed, this corresponds to the key being
removed from the ignition.
X To switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can now activate the windscreen wipers, for example.
The power supply is switched off again if:
R the driver's door is opened and
R you press Start/Stop button :twice when in
this position
X To switch on the ignition: press Start/Stop
button :twice.
The ignition is switched on.
The ignition is switched off again if:
R you do not start the engine from this position
within 15 minutes
R you press Start/Stop button :twice when in
this position
The power supply is switched off again if:
R the driver's door is opened and
R you press Start/Stop button :twice when in
this position
Removing the Start/Stop button You can remove the Start/Stop button from the
ignition lock and start the vehicle as normal
using the key.
It is only possible to switch between Start/Stop
button mode and key operation when the trans-
mission is in position P.
X Remove Start/Stop button :from ignition
lock ;.
You do not have to remove the Start/Stop but-
ton from the ignition lock when you leave the
vehicle. You should, however, alway stake the
key with you when leaving the vehicle. As long as
the key is in the vehicle:
R the vehicle can be started using the Start/
Stop button
R the electrically powered equipment can be
operated 146
DrivingDriving and parking

Starting the vehicle
Important safety notes G
WARNING
If children are left unsupervised in the vehicle, they could:
R open doors, thereby endangering other per-
sons or road users
R get out and be struck by oncomingt raffic
R operate vehicle equipment and become
trapped, for example
In addition, the children could also set the
vehicle in motion, for example, if they:
R release the parking brake
R shift the automatic transmission out of park
position Porshift manual transmission into
neutral
R start the engine
There is arisk of an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children and animals unattended in the vehi-
cle. Keep the keys out of the reach of children. G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There is ar isk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation. G
WARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or parts of the engine that heat up. There is arisk
of fire.
Carry out regular checkstom ake sure that
there are no flammable foreign materials in
the engine compartmen torinthe exhaust
system. General notes Vehicles with
apetrol engine: the catalytic
converter is preheated for up to 30 seconds
after acold start. The sound of the engine may
change during this time.
Manual transmission X
Depress the brake pedal and keep it
depressed.
X Fully depress the clutch pedal.
X Shift to neutral N.
Automatic transmission X
Shift the transmission to position P
(Y page 158).
The transmission position indicator in the
multifunction display shows P(Y page 159).
i You can start the engine in transmission
position Pand N.
Starting procedurew ith the key To start the engine using the key instead of the
Start/Stop button, pull the Start/Stop button
out of the ignition lock.
X To startad iesel engine:t urn the key to
position 2in the ignition lock (Y page 145).
The % preglow indicator lamp in the instru-
ment cluster lights up.
X Turn the key to position 3in the ignition lock
and release it as soon as the engine is running
(Y page 145).
i Vehicles with
adiesel engine: you can
start the engine without preglow if the engine
is warm.
If the engine will not start:
X Remove the key from the ignition lock.
X Reinsert the key into the ignition lock after
waiting for ashort period.
X Turn the key to position 2in the ignition lock
(Y page 145).
The indicator lamps in the instrumen tcluster
light up (Y page 285).
X Turn the key to position 3(Y page 145) in the
ignition lock and release it as soon as the
engine is running. Driving
147Driving and parking Z

Switching the ECO start/stop function
off/on All vehicles (except Mercedes-AMG vehi-
cles) X
To switch off: press ECO button :.
Indicator lamp ;and the èECO symbol
in the multifunction display go out.
X To switch on: press ECO button :.
Indicator lamp ;lights up. If all conditions
for automatic engine switch-of f(Y page 149)
are fulfilled, the èECO symbol is shown in
green in the multifunction display.
If not all condition sfor automatic engine
switch-of f(Y page 149) are met, the è
ECO symbol is shown in yellow in the multi-
function display.Ift his 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 amalfunction .The engine will then
not be switched off automatically when the vehi-
cle stops.
Selectin gdrive program S+deactivates the ECO
start/stop function. If you press ECO button :,
the ECO start/stop function is activated.
Mercedes-AMG vehicles X
To switch off: press ECO button :.
Indicator lamp ;and the èECO symbol
in the multifunction display go out.
X To switch on: press ECO button :.
Indicator lamp ;lights up.
If all condition sfor automatic engine switch-
off (Y page 149) are fulfilled, the èECO
symbol is shown in green in the multifunction
display.
If not all condition sfor automatic engine
switch-of f(Ypage 149) are fulfilled, the è
ECO symbol is shown in yellow.Ift his is the
case, the ECO start/stop function is not avail- able.
If indicator lamp ;is off, the ECO start/stop
function has been deactivated manually or as
the result of amalfunction .The engine will then
not be switched off automatically when the vehi- cle stops.
The ECO start/stop function is deactivated if:
R you switch to drive program RACE
(S‑MODEL), S+orS(Y page 154)
R you permanently activate manual gearshifting
(Y page 163)
If you have permanently activated manual gear- shifting and then press ECO button :,the ECO
start/stop function is activated. AMG sportse
xhaust system
(Mercedes-AMG vehicles)
You can choose between different AMG sports
exhaust system volumes using the position of
the exhaust flap.
If the ignition is switched off for less than four
hours, the previously selected settingisa ctiva-
ted when the engine is next started. If the igni-
tion is switched off for more than four hours, the
quietest settingisa ctivated when the engine is
next started. Driving
151Driving and parking Z

Setting the volume:
X Press button :.
If yo uselect the loudest setting, indicator
lamp ;lights up.
You can also adjust the position of the exhaust
fla pu sing the:
R DYNAMIC SELECT switch (Y page 154)
R multimedi asystem 152
DrivingDriving and parking

Temporary setting
X
To activate: shift the DIRECT SELEC Tlev er to
position D.
X Pull steerin gwheel gearshift paddle :or;.
Temporary setting will be active for acertain
amount of time .Under certain conditions the
minimu mamount of time is extended, e.g .inthe
cas eofl atera lacceleration, durin ganoverrun
phas eorw hend rivin gons teepterrain.
X To deactivate: pull steeringwheel gearshift
paddle ;and hol ditinp lace.
or X Use the DIRECT SELEC Tlever to shift the
transmission position.
or X Use the DYNAMIC SELEC Tswitch to change
the drive program.
Permanent settin g(Me rcedes-AMG
vehicles) X
To activate: shift the DIRECT SELEC Tlev er to
position D.
X Press button :.
Indicato rlamp ;lights up. X
To deactivate: press button:.
or X If positio nD(automatic transmission) is
selecte dfor the transmission in drive pro-
gram I:shift to drive program Iwith the
DYNAMIC SELEC Tswitch.
Indicato rlamp ;goes out.
Shiftin ggears !
Mercedes-AMG vehicles:
the automatic
transmission does not shift up automatically
eve nw hent he engine limiting spee dfor the
current gear is reached. When the engine lim- iting spee disreached, the fuel supply is cut to
prevent the engine fro moverrevving. Always
make sure tha tthe engine spee ddoesn ot
reach the red area of the rev counter. There is
otherwis eariskofe ngine damage. X
To shift up: pull steeringwheel gearshift pad-
dle ;.
The automatic transmission shifts up to the
next gear.
Al lv eh icle s(exce pt Mercedes-AMG vehi-
cles): if the maximum engine spee donthe
currentl yengaged gear is reache dand you
continue to accelerate, the automatic trans-
mission automaticall yshifts up in order to
prevent engine damage.
X To shift down: pull steeringwheel gearshift
paddle :.
The automatic transmission shifts down to
the next gear.
Automatic downshifting occurs when coast-
ing.
If the engine exceed sthe maximum engine
spee dwhens hifting down, the automatic
transmission protects against engine damage
by not shifting down. 164
Automati
ctransmissionDriving an dparking