2015 MERCEDES-BENZ C-CLASS COUPE air condition

Display messages
Possible causes/consequences and
M
MSolutions Check tyre(s)
Check tyre(s) The tyr
epressur einoneor mor etyres has dropped significantly. The
whee lposition is displayed in th emultifunction display.
Aw arning tone also sounds.
G WARNING
Underinflated tyres pos ethe followin grisks:
R thet yres may burst, especially as th eload and vehicl espeed
increase
R thet yres may wear excessivel yand/o runevenly, whic hmay greatly
impair tyr etraction
R thed rivin gcharacteristics ,aswell as steering and braking ,may be
greatl yimpaired
There is ariskofana ccident.
X Stop th evehicl ewithout making any sudden steering or braking
manoeuvres .Pay attention to th etraffic condition sasyou do so.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Chec kthe tyres and ,ifneces sary, follow th einstruction sfor aflat
tyr e(Ypage 337).
X Chec kthe tyrep ressur e(Ypage 359).
X If necessary, correc tthe tyrep ressure. Warnin
gtyred efect
Warnin gtyred efect The tyr
epressur einoneor mor etyres has dropped suddenly. The
whee lposition is displayed in th emultifunction display.
G WARNING
If you drive wit haflat tyre, there is ariskoft hefollowin ghazards:
R af lat tyr eaffects th eabilit ytos teer or brak ethe vehicle
R you could lose control of th evehicle
R continued drivin gwithaf lat tyr ewill caus eexces sive heat build-up
and possibl yafire
There is ariskofana ccident.
X Stop th evehicl ewithout making any sudden steering or braking
manoeuvres .Pay attention to th etraffic condition sasyou do so.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Chec kthe tyres and ,ifneces sary, follow th einstruction sfor aflat
tyr e(Ypage 337). Tyre
Tyre
press.
press. monitor
monitor
currently unavaila‐
currently unavaila‐
ble ble No signals can be received from th
etyrep ressur esensor sdue to
stron gRFi nterference. The tyr epressur emonitor is temporarily mal-
functioning.
X Drive on.
The tyr epressur emonitor restarts automatically as soo nasthe
caus ehas been rectified. 278
Display
messagesOn-boardcomputer an ddisplays

Safety systems
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions J
N
The yellow brake system warning lamp lights up while the engine is running or
the ECO start/stop function is activated.
G WARNING
The brake system is malfunctioning and the braking characteristics may be affec- ted.
There is arisk of an accident.
X If the multifunction display shows adisplay message, please observe this.
X Drive on carefully.
X Consult aqualified specialist workshop immediately. J
N
The red brake system warning lamp is lit while the engine is running.
Aw arning tone also sounds.
G WARNING
The brake boosting effect is malfunctioning and the braking characteristics may be
affected.
There is arisk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying attention to road
and traffic conditions. Do not continue driving under any circumstances.
X Safeguard the vehicle against rolling away (Y page 172).
X Consult aqualified specialist workshop.
X Observe the additional display messages in the multifunction display. J
N
The red brake system warning lamp is lit while the engine is running.
Aw arning tone also sounds.
There is insufficient brake fluid in the brake fluid reservoir.
G WARNING
Braking efficiency may be impaired.
There is arisk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying attention to road
and traffic conditions. Do not continue driving under any circumstances.
X Safeguard the vehicle against rolling away (Y page 172).
X Do not top up the brake fluid. Topping up will not rectify the fault.
X Consult aqualified specialist workshop.
X Observe the additional display messages in the multifunction display. 286
Warning and indicator lampsint
he instrument clusterOn-board computer and displays

Warning/
indicator
lamp
N N
Signal type
Possiblec auses/consequences and M
M Solutions ?
N
The red coolant warning lamp comes on while the engine is running.
The coolant leve listoo low.
If the coolant leve liscorrect, the airflow to the engine radiator may be blocked or
the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is no longer being coole dsufficiently.
X Observe the additiona ldisplay messages in the multifunction display.
X Stop the vehicl eimmediately, paying attention to road and traffic conditions,
and switch off the engine.
X Safeguard the vehicl eagainst rolling away( Ypage1 72).
X Leave the vehicl eand keep asafe distance from the vehicl euntil the engine has
coole ddown.
X Check the coolant leve land top up the coolant, observing the warning notes
(Y page3 24).
X If you have to top up the coolant frequently, have the engine cooling system
checked.
X Make sure that the air supply to the engine radiator is not blocked ,e.g. by frozen
slush.
X Do not start the engine again until the coolant temperature is below 120 †. The
engine may otherwise be damaged.
X Drive to the neares tqualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-start traffic. ?
N
The red coolant warning lamp comes on while the engine is running. Awarning
tone alsos ounds.
The coolant temperature has exceede d120 †. The airflow to the engine radiator
may be blocked or the coolant leve lmay be too low.
G WARNING
The engine is not being coole dsufficiently and may be damaged.
Never drive with an overheated engine. Driving when youre ngine is overheated
can caus esome fluids which may have leaked into the engine compartment to
catch fire.
In addition, steam from an overheated engine can caus eserious burns, which can
occur just by opening the bonnet.
There is arisk of injury.
X Observe the additiona ldisplay messages in the multifunction display.
X Stop the vehicl eimmediately, paying attention to road and traffic conditions,
and switch off the engine.
X Safeguard the vehicl eagainst rolling away( Ypage1 72).
X Leave the vehicl eand keep asafe distance from the vehicl euntil the engine has
coole ddown.
X Check the coolant leve land top up the coolant, observing the warning notes
(Y page3 24).
X If you have to top up the coolant frequently, have the engine cooling system
checked. 292
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Tyres
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequence sand M
MSolutions h
N
The yellow tyr epressure monitor warning lamp (pressure loss/malfunction) is
lit.
The tyr epressure monitor ha sdetecte dalossofp ressure in at leas tone of the
tyres.
G WARNING
Underinflated tyres pose the following risks:
R the tyres ma yburst, especially as the load and vehicl espeed increase
R the tyres ma yweare xcessivel yand/or unevenly, which ma ygreatl yimpai rtyre
traction
R the drivin gcharacteristics, as well as steerin gand braking ,maybe greatly
impaired
There is ariskofana ccident.
X Stop the vehicl ewithou tmaking any sudden steerin gorbraking manoeuvres.
Pa ya ttentio ntothe traffi cconditions as yo udoso.
X Safeguard the vehicl eagain st rolling away (Y page 172).
X Observe the additional displa ymessage sinthe multifunctio ndisplay.
X Check the tyres and ,ifnecessary ,follo wthe instructions for aflatt yre
(Y page 337).
X Check the tyr epressure (Y page 359).
X If necessary ,correct the tyr epressure. h
N
The yellow tyr epressure monitor warning lamp (pressure loss/malfunction)
flashe sfor approximately one minute and the nremains lit.
The tyr epressure monitor is faulty.
G WARNING
The system is possibl yunabl etod etect or register lo wtyrep ressure.
There is ariskofana ccident.
X Observe the additional displa ymessage sinthe multifunctio ndisplay.
X Consult aquali fied specialis tworkshop immediately. 294
Warning and indicator lamps in the instrument clusterOn-board computer and displays

General notes
The multimedia system section in this manual
describes the basi cprinciples for operation.
More information can be found in the Digital
Owner's Manual. Important safety notes
G
WARNING
Operating the integrated information systems and communications equipment in the vehicle
whil edriving willd istract you from traffic con-
ditions. You could then lose control of the
vehicle .There is arisk of an accident.
Only operate these devices if road traffic con-
ditions permit. If you are unsure aboutt he
surrounding conditions, pullo ver toasafe
locatio nand make entries only whilet he vehi-
cle is stationary.
You must observe the legalr equirements for the
country in which you are currently driving when operating the multimedia system.
The multimedia system calculates the route to
the destination withou ttaking the following into
account, for example:
R traffic lights
R stop and give way signs
R parking or stopping restrictions
R road narrowing
R other road and traffic rulesa nd regulations
The multimedia system may give incorrect nav-
igation recommendations if the actual street/
traffic situation does not correspond with the
digital map's data.
For example:
R ad iverted route
R the road layout or the direction of aone-way
street has been changed
For this reason, you must alwayso bserve road
and traffic rulesa nd regulations during your
journey. Roada nd traffic rulesa nd regulations
alwaysh ave priority over multimedia system
driving recommendations. Function restrictions
For safety reasons, some functions are restric-
ted or unavailable whilet he vehicle is in motion.
You willn otice this, for example, because either
you willn ot be abletos elect certain menu items
or am essag ewilla ppear to this effect. Operating system
Overview
General notes !
Do not use the space in front of the display
for storage. Objects placed here could dam-
age the display or impair its function. Avoid
any direct contact with the display surface.
Pressure on the display surface may resul tin
impairments to the display,w hich could be
irreversible.
Wearing polarised sunglasses may impair your
ability to read the display.
The display has an automatic temperature-con- trolled switch-off feature .The brightness is
automaticall yreduced if the temperature is too
high. If necessary ,the display may temporarily
switch off completely.
Cleaning instructions !
Do not touch the display.T
he display has a
very sensitive high-gloss surface; there is a
risk of scratching. If you have to clean the
screen, however, use amild cleaning agent
and asoft, lint-free cloth.
The display must be switched off and have
cooled down before you start cleaning. Do not
apply pressure to the display surface when
cleaning it, as this could cause irreversible dam- age to the display.
Switching the multimedia system
on/off X
Press the ubutton on the centre console
to the right of the controller.
For Mercedes-AMG vehicle swith selectable
AMG Performance exhaust system: press the
thumbwheel to the right of the controller. 296
Operating systemMultimedia system

You can fin
dall available climat econtrol func-
tion sint he climat econtrol menu. You can use
the climat econtrol bar to switc htothe climate
control menu.
Overview Example: COMAN
DOnline
: Adjusts temperature and air distribution on
the left and displays the current setting
; Calls up the climat econtrol menu, displays
the current coolin gand climat emode set-
ting
= Adjusts air distribution and temperature on
the right and displays the current setting
There may be fewer settings or none, depending
on your vehicle's equipment.
Calling up th eclimate control menu Multimedia system:
X Select Vehicle
Vehicle.
The vehicle men uappears.
X Slide 6the controller repeatedly until the
climat econtrol bar is activated.
X To select from climat econtrol bar ;:turn
and press the controller.
The men ufor selecting climat econtrol func-
tion sisa ctivated.
X To select the desired climat econtrol function:
turn and press the controller.
The selected climat econtrol function
appears.
Calling up th eclimate control bar Multimedia system:
X Select Vehicle Vehicle.
The vehicle men uappears.
X Slide 6the controller repeatedly until the
climat econtrol bar is activated. Settings in th
eclimate menu Setting th
eclimate mode
By settin gthe climat emode, you determine the
type of airflow. The settin gisactive when the air-
conditioning syste misset toÃ
(Y page 132).
X Call up the climat econtrol menu
(Y page 300).
X To select Climate mode
Climate mode :turn and press the
controller.
X To change the setting: turn the controller.
Exitin gam enu:
X Press the %button.
The current airflow settin gisshown in the cli-
mate control bar: DIFFUSE
DIFFUSE,MEDIUM
MEDIUMorFOCUS
FOCUS.
Starting/stopping th eperfum eatomiser
The perfum eatomiser enables the air in the
vehicle interior to be scented to individual
requirements. For further information, see
(Y page 136).
X Call up the climat econtrol menu
(Y page 300).
X To select Air
Air freshener freshener:t urn and press the
controller.
The settin gelemen tisactive.
X To start/sto pthe perfum eatomiser: press
the controller.
X To set the intensity: turn the controller when
the atomiser is switched on.
Exitin gam enu:
X Press the %button.
Switchin gthe ionisation on/off
The ionisation has acleansing effect on the air in
the vehicle interior .For further information, see
(Y page 138).
X Call up the climat econtrol menu
(Y page 300).
X To select Ionisation
Ionisation:t urn and press the
controller.
The settin gelemen tisactive.
X To switc hthe ionisation on/off: press the
controller.
Exitin gam enu:
X Press the %button. 300
Operating systemMultimedia system

Settings in the bottom bar of the cli-
matec ontrol menu Activating/deactivating cooling with air
dehumidification
X Call up the climate control menu
(Y page 300).
X Slide 6the controller repeatedly until the
bottom bar is activated.
X To select O
O A/C
A/C:t urn and press the control-
ler.
X Switch cooling with air dehumidification on
O or off ª.
i The current status of the cooling function is
displayed in the climate control bar: A/C ON
–a ctivated, A/C OFF –deactivated.
i Deactivating the cooling with air dehumidi-
fication function reduces fuel consumption.
Synchronising the climate control set-
tings Use O
O Sync. Sync. (synchronisation )toselect the
climate control settingf or all zones togetherO
or separately ª.
X Call up the climate control menu
(Y page 300).
X Slide 6the controller repeatedly until the
bottom bar is activated.
X To select O
O Sync. Sync.:t urn and press the con-
troller.
X Switch the synchronisation function on Oor
off ª.
For further information on synchronising cli-
mate control settings, see (Y page 133).Navigation mode
Important safety notes G
WARNING
Operating the integrated information systems and communications equipment in the vehicle
while driving will distract you from traffic con-
ditions. You could then lose control of the
vehicle. There is arisk of an accident.
Only operate these devices if road traffic con-
ditions permit. If you are unsure about the surrounding conditions, pull over to
asafe
location and make entries only while the vehi- cle is stationary.
You must observe the legal requirements for the countryinw hich you are currently driving when
operating the navigation system.
General notes Correct functioning of the navigation system
depends, amongst other things, on GPS recep-
tion. In certain situations, GPS reception may be
impaired, there may be interference or there
may be no reception at all, e.g. in tunnels or
multi-storey car parks.
Audio 20 is equippedw ith Garmin®
MAP PILOT
(see the manufacturer's operating instructions).
The Garmin ®
MAP PILOT operating instructions
are stored on the SD memory card as aPDF file.
The SD card box contains aquick guide.
The following descriptions apply to navigation
with COMAND Online. Further information can
be found in the Digital Owner's Manual.
Selecting aroute type and route options Multimedia system:
X Select Navi NaviQNavigation Navigation.
The map displayst he current vehicle position.
X Slide 6the controller.
X Select Options
OptionsQRoute settings Route settings.
Notes for route types:
R Eco route
Eco route
R Dynamic route
Dynamic route
Traffic reports on the route for the route guid-
ance are taken into account.
R Calculate alternative routes Calculate alternative routes
Differen troutes are being calculated. Instead
of Start Start select the Continue Continue menu item.
Notes for route options:
R Use toll roads
Use toll roads
The route calculation includes roads which
require you to pay ausage fee (toll).
R Use vignette roads
Use vignette roads (not available in all
countries)
The route calculation includes roads which
require you to pay atime-based fee (vignette).
Av ignett eallowst emporary use of the route
network,e .g.10d ays or 1year. Operating system
301Multimedia system Z

X
Press 9or: on the steerin gwheel to
select the Service
Servicemenu and confirm with
a.
X Press 9or: on the steerin gwheel to
select the ASSYST PLUS
ASSYST PLUS submenu and con-
firm with a.
The service due date appears in the multi-
function display. Information about service
Resetting the ASSYST PLUS service
interva ldisplay !
If the ASSYST PLUS service interval display
has been inadvertently reset, this setting can
be corrected at aqualified specialist work-
shop.
Have service work carried out as described in the Servic eBooklet .This may otherwise lead
to increased wear and damage to the major
assemblies or the vehicle.
Aq ualified specialist workshop, e.g. a
Mercedes-Benz Servic eCentre, will reset the
ASSYST PLUS service interval display after the
service work has been carried out. You can also
obtain further information on maintenance
work, for example.
Special service requirements The prescribed service interval is based on nor-
mal operation of the vehicle. Servic ework will
need to be performed more often if the vehicle is
operated under arduous conditions or increased loads, for example:
R regular city driving with frequent intermediate
stops
R if the vehicle is primarily used to travel short
distances
R for frequent operation in mountainous terrain
or on poor road surfaces
R if the engine is often left idling for long periods
In these or similar operating conditions, have,
for example, the air filter, engine oil and oil filter changed more frequently. The tyres must be
checked more frequently if the vehicle is oper-
ated under increased loads. Further informationcan be obtained at aqualified specialist work-
shop, e.g. aMercedes-Benz Servic eCentre. Driving abroad An extensive Mercedes-Benz Servic
enetwor kis
also availabl einother countries. You can obtain
further information from any Mercedes-Benz
Servic eCentre. Care
General notes
H
Environmenta
lnote
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man-
ner.
! For cleaning your vehicle, do not use any of
the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective films
with hard objects, e.g. aring or ice scraper.
You could otherwise scratch or damage the
surfaces and protective film.
! Do not park up the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for afew minutes after cleaning.
Brakin gheats the brake discs and the brake
pads/linings, thus drying them. The vehicle
can then be parked up.
Regula rcare of your vehicle is acondition for
retainin gthe quality in the long term.
Use care products and cleaning agents recom-
mended and approved by Mercedes-Benz. 326
CareMaintenance and care