climate control MERCEDES-BENZ C-CLASS COUPE 2015 User Guide

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

X
Convenience closing feature: pressand
hold the grocker switch up or down until
th es ide windows start to close automatically.
Vehicles with sliding sunroof or pano-
rama sliding sunroof: thes lidin gsunroo for
panorama slidin gsunroo fcloses simultane-
ously.
The indicator lamp above the grocker
switch light sup. Air-recirculation mode is
activated.
If you open th eside windows or th esliding
sunroo forthepanorama slidin gsunroo fman-
ually after closin gthemw ith th econvenience
closin gfeature, they will remain in this posi-
tio nw hen opened usin gthe convenience
opening feature.
If part softhebody are in th eclosing area during
convenience closing, proceed as follows:
X Pres sthe W button to stop th eside win-
dows.
The side windows stop.
X To then open th eside windows, pres sthe
W button again.
X Only vehicles with sliding sunroof or pan-
orama sliding sunroof: pressthe 3
switch to stop th eslidin gsunroo forpano-
rama slidin gsunroof.
The slidin gsunroo forpanorama slidin gsun-
roo fstops.
X To then open th eslidin gsunroo forpanorama
slidin gsunroof, pull back on the 3button.
Notes on th eautomatic reversing feature for:
R thes ide windows (Y page 93)
R thes lidin gsunroo forpanorama slidin gsun-
roo f(Ypage 97)
X Convenience opening feature: pressand
hold the grocker switch up or down until
th es ide windows start to open automatically.
Vehicles with sliding sunroof or pano-
rama sliding sunroof: thes lidin gsunroo for
panorama slidin gsunroo fopen ssimultane-
ously.
The indicator lamp above the grocker
switch goes out .Air-recirculation mode is
deactivated. Switching th
eresidual hea ton/off
General notes The residual heat function is onl
yavailable with
THERMATIC automatic climate control with aux-
iliary heating.
When th eengine is switche doff,itisp ossible to
mak euse of th eresidual heat of th eengine to
continue heating or ventilating th efront com-
partmen tofthevehicle for approximately
30 minutes .The heating or ventilation time
depends on th eset interio rtemperature.
Activating/deactivating X
Turn th ekey to position 0in th eignitio nlock
or remove it (Y page 145).
X To switch on: pressthe ! rocker switch
up or down.
The indicator lamp above the !rocker
switch light sup.
The blower will run at alow speed regardless of
th ea irflow setting.
If you activat ethe residual heat function at high
temperatures, onl ythe ventilation will be acti-
vated. The blower run satmedium speed.
X To switch off: pressthe ! rocker switch
up or down.
The indicator lamp above the !rocker
switch goes out.
Residual heat is deactivated automatically:
R after approximatel y30minutes
R when th eignitio nisswitche don
R if th ebattery voltage drops
R when th eauxiliar yheating is switche don Perfume atomiser
Operating th eperfume atomiser G
WARNING
If children open th evial, they could drin kthe
perfume or it could com eintoc ontac twith
their eyes. Ther eisarisk of injury. Do not
leave children unsupervised in th evehicle.
If th eperfume liquid has been drunk, consult
ad octor. If perfume comes int ocontac twith
your eyes or skin, rinse th eeyes with clean 136
Operating th
eclimate control systemClimate control

water
.Ifyou continue to experience difficul-
ties ,consult adoctor. H
Environmenta
lnote Full vials must not be dis-
posed of with household
waste. They must be collec-
ted separately and disposed
of in an environmentally
responsible recyclin
gsys-
tem. Dispose of full vials in an
environmentally responsible
manner and tak ethemtoa
harmful substanc ecollec-
tio np oint. :
Vial lid
; Vial
The perfume atomiser helps to improve driving
comfort.
Via th emultimedia system you can:
R switch th eperfume atomiser on or off
(Y page 300)
R regulat ethe perfume intensity (Y page 300)
The following conditions can affect your percep-
tio noft heperfume intensity:
R operatin gmode of th eautomatic climate con-
trol
R interior temperature
R tim eofy ear or day
R air humidity
R physiological condition of occupants, e.g .fati-
gue or hunger
The perfume atomiser can only be operated
when th eautomatic climate control is switched on and is only active when th
eglove compart-
men tisc losed.
The perfume atomiser is provided with apre-fil-
led vial. You can also choose fro mavariety of
filled perfume vials and an empt yvial which you
can fill yourself.
If you refill an empt yperfume vial, observe the
separate information sheet attache dtothevial.
! If you do not use genuine Mercedes-Benz
interior perfumes, observe th emanufactur-
ers' safet ynotices on th eperfume packaging.
Do not refill th epre-filled perfume vial when it is
empty. Dispose of th eused vial after use.
X To inser tthe perfum evial: open th eglove
compartmen t(Ypage 309).
X Slide th eperfume vial int othe holder as far as
it will go.
X To remove th eperfum evial: pull out the
perfume vial.
X To refill th eperfum evial: unscrew th elid of
th ee mpt yperfume vial to refill it yourself.
X Refill th evial with amaximum of 15 ml of the
desired liquid perfume.
X Screw th elid back on to th evial.
! Only refill th
evial when you are outside the
vehicle. Otherwise, liquid perfume could drip
int ot he interior and contaminat eit.
Always refill th eempt yrefillable vial with the
same perfume. Otherwise, you migh tnot ach-
ieve optimum result sfromt heperfume atom-
iser. Operating th
eclimate control system
137Climate control Z

Problems with the perfume atomiser
Problem
Possible causes/consequences and
M
MSolutions The vehicle interior is not
perfumed although the
perfume atomiser has
been activated. The perfume vial has not been pushed into the holder as far as it will
go.
X Slide the perfume vial into the holder as far as it will go. The perfume vial is not filled sufficiently.
X Pre-filled vials: dispose of the empty vial.
X Use anew pre-filled vial.
X Refillable vials: refill the vial with amaximum of 15 ml of the same
perfume. The perfume atomiser is faulty.
X Have the perfume atomiser checked at aqualified specialist work-
shop. Ionisation
Ionisation is used to purify and freshen the air in the vehicle interior, which is conducive to a
pleasant climate.
The ionisation of the interior air is odourless and
cannot,d irectly, be perceived in the vehicle inte-
rior.
You can switch ionisation on or off using the
multimedia system (Y page 300).
Ionisation can only be operated when the auto-
matic climate control is switched on. The side air vent on the driver's side must be open. 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 arisk of fatal injuries.
You should switch off the auxiliary heating in
enclosed spaces which do not have an extrac- tion system, e.g. agarage. 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 asufficient supply of fresh air, open
aw indow 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 arisk 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 is fitted under the front
wing on the right-han dside of the vehicle. The
emissions outlet is found behind the front wheel on the right-han dside of the vehicle. 138
Operating the climate control systemClimatec
ontrol

!
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

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 aqualified specialist workshop.
Storet he 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 arange of approximately
300 metres. This range is reduced by:
R sources of radio interference
R solid objectsb etween the remote control and
the vehicle
R the remote control being in an unfavourable
position in relation to the vehicle
R transmitting from an enclosed space
If the remote control battery is low, the battery
symbol on the left of the display is shown as
empty. Replace the remote control battery and
observe the important safety notes when doing so (Y page 141).
Activating/deactivating the auxiliary
heating or auxiliary ventilation Remote control
:
Display
; u Switches the auxiliary heating or aux-
iliary ventilation on
Checks the status
= . Sets the departure time
? ^ Switches the auxiliary heating or aux-
iliary ventilation off
A , Sets the departure time X
To switch on: press and hold the ubut-
ton.
ON is shown in the remote control display.
X To switch off: press and hold the ^but-
ton.
OFF is shown in the remote control display.
Checking the status of the auxiliary heat- ing or auxiliary ventilation
X Briefly press the ubutton.
The following messages may appear in the dis-
play: Display Meaning
The auxiliary heating or
auxiliary ventilation is
switched off.
The auxiliary ventilation is
switched on. The number
in the display shows the
remaining time (in
minutes) for the auxiliary
ventilation.
The auxiliary heating is
switched on. The number
in the display shows the
remaining time (in
minutes) for the auxiliary
heating.
Ad
eparture time has been
activated. The departure
time appears in the dis-
play. 140
Operating the climate control systemClimatec
ontrol

Ad
epart uret ime ha sbeen
activated .The auxiliary
ventilatio nisc urrently
activated .The numbe rin
the display shows the
remaining time (in
minutes) for the auxiliary
ventilation. If the vehicl eis
not started afte rthist ime,
the running time is
increased by fiv eminutes. Ad
epart uret ime ha sbeen
activated .The auxiliary
heating is currentl yactiva-
ted .The numbe rinthe dis-
play shows the remaining
time (i nminutes) for the
auxiliary heating .Ifthe
vehicl eisnot started after
thi stime ,the running time
is increased by five
minutes. If the engine ha
snot ye treache doperating tem-
perature when it is started ,the auxiliary heating
running time is increased .The auxiliary heating
continue storununti lthe operating temperature
is reached. If thi sisthe case, the ysymbol
appear sinthe remote contro ldisplay and the
running time is zero minutes.
Settin gthe departure time
Make sure tha tthe time set in the vehicl eis
correct before setting the departur etime (see
the separate operating instructions) .Otherwise,
the auxiliary heating ma yswitch on at the wrong
time and at an unsuitable location. Whe nsetting
the departur etime ,alsoo bserve the important
safety notes (Y page 138).
X Briefl ypress the ubutton.
X Press the ,or. button repeatedly
unti lthe time to be change dappears in the
display.
X Press the uand^ buttons simultane-
ously.
The Îsymbo linthe remote contro ldisplay
flashes.
X Press the ,or. button to set the
desired departur etime. i
The longe
ryou press the ,or. but-
ton, the faster the time changes.
X Press the uand^ buttons simultane-
ously.
The new departur etime is stored.
Activatin gthe se tdeparture time
X Briefl ypress the ubutton.
X Press the ,or. button repeatedly
unti lthe desired departur etime appear sin
the display.
X Press the ubutton.
The Ísymbol, the departur etime and,
depending on the selecte ddepart uret ime,
the letter A, BorCappear in the display.
Deactivating the se tdeparture time
X Briefl ypress the ubutton.
The status of the auxiliary heating is shown in the display.
X Press the .button.
The first departur etime stored appear sinthe
display.
X Press the ^button.
OFF is shown in the remote contro ldisplay.
Replacing the remote contro lbattery Important safety notes
G
WARNING
Batterie scontain toxi cand corrosive substan-
ces .Ifb atteries ar eswallowed, it can resul tin
severe health problems .There is ariskoff atal
injury.
Kee pbatteries ou tofthe reach of children. If
ab attery is swallowed, see kmedica lattention
immediately. H
Environmental note Batterie
scontain pollutants.
It is illega ltodispose of them
with the househol drubbish.
The ym ustbec ollected sep-
arately and disposed of in an Operatin
gthe climate contro lsystem
141Climate control
Z

environmentally responsible
recyclin gsystem. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to
aqualified spe-
cialist workshop or to acol-
lection point for used batter-
ies.
Replacing the battery AC
R2450 lithium batter yisrequired when
replacing the battery.
X Press apointed objec tinto recess :.
X Slide batter ycover ;backwards in the direc-
tion of the arrow.
X Inser tnew battery =with the lettering facing
upwards.
X Slide batter ycover ;in the opposite direc-
tion to the arrow on the remot econtrol until it
engages. 142
Operating thec
limatecontrol systemClimatecontrol

Problems with the auxiliary heating/ventilation
Problem
Possible causes/consequences and
M
MSolutions FAIL¨ The signal transmission between the transmitter and the vehicle is
faulty.
X
Change your position in relation to the vehicle, moving closer if
necessary. FAIL The auxiliary heating/ventilation cannot be switched on or has
switched itself off.
The starter battery is not sufficiently charged.
X Charge the starter battery. The fuel tank content is below the reserve fuel level.
X Refuel at the nearest filling station. FAIL
¯ The auxiliary heating/ventilation is malfunctioning.
X Have the auxiliary heating/ventilation checked at aqualified spe-
cialist workshop. Air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air vents. This could result in burns or frostbit ein
the immediate vicinity of the air vents. There
is ar isk of injury.
Make sure that all vehicle occupants always
maintain asufficient distance to the air out-
lets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air ventsi nto the vehicle interior,
please observe the following notes:
R keep the air inlet between the windscreen and
the bonnet free of blockages, such as ice,
snow or leaves
R never cover the ventsorv entilation grilles in
the vehicle interior Adjusting the air vents
Example
:
Side window demister vent
; Side air vent,l eft
= Control for left side air vent
X To open or close: turn thumbwheel=to the
left or right as far as it will go.
X To adjust the air direction: hold side air
vent ;by thumbwheel =and move it up or
down or to the left or right. Air vents
143Climatecontrol Z