MERCEDES-BENZ C-CLASS COUPE 2015 Owners Manual

Warning/
indicator
lamp
N N
Signal type
Possiblec auses/consequences and M
M Solutions ÷
N
The yellow ESP ®
warning lamp flashes while the vehicl eisinmotion.
ESP ®
or traction control has intervened because there is arisk of skidding or at
least one whee lhas started to spin.
Cruise control or DISTRONIC PLUS is deactivated.
X Only depress the accelerator peda lasfar as necessary when pulling away.
X Accelerate more gently while the vehicl eisinmotion.
X Adapt yourd riving style to suitt he road and weather conditions.
X Do not deactivate ESP ®
.
In rare cases it may be better to deactivate ESP ®
:
R all vehicles except Mercedes-AMG vehicles (Y page72)
R Mercedes-AMG vehicles (Y page73)
Observe the important safety notes on ESP ®
(Y page7 2). ÷
N
The yellow ESP ®
warning lamp is lit while the engine is running.
ESP ®
is faulty.
Other driving and driving safety systems may alsobef aulty.
G WARNING
The brake system continues to function normally, but without the functions listed above.
The braking distance may thus increas einanemergency braking situation.
If ESP ®
is not operational ,ESP ®
is unable to stabilise the vehicle.
There is an increased dange rofskidding and risk of an accident.
X Observe the additiona ldisplay messages in the multifunction display.
X Drive on carefully.
X Consult aqualified specialist worksho pimmediately. 288
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Warning/
indicator
lamp
N N
Signal type
Possiblec auses/consequences and M
MSolutions å
N
The yellow ESP ®
OFF warning lamp is lit while the engine is running or the ECO
start/stop function is activated.
ESP ®
is deactivated.
G WARNING
If ESP ®
is deactivated, ESP ®
is unable to stabilise the vehicle.
Further driving systems or driving safety systems are thus restricted, e.g. Active
Blind Spot Assist. The system does not perform braking actions.
There is an increased dange rofskidding and risk of an accident.
X Reactivate ESP ®
.
In rare cases it may be better to deactivate ESP ®
:
R all vehicles except Mercedes-AMG vehicles (Y page72)
R Mercedes-AMG vehicles (Y page73)
Observe the important safety notes on ESP ®
(Y page7 2).
X Adapt yourd riving style to suitt he road and weather conditions.
If ESP ®
cannot be activated:
X Drive on carefully.
X Contact aqualified specialist worksho pimmediatel yand have the ESP ®
system
checked. M
N
Mercedes-AMG vehicles only:
The yellow SPORT handling mode warning lamp is lit while the engine is running.
SPORT handling mode is activated.
G WARNING
When SPORT handling mode is activated, ESP ®
is unable to stabilise the vehicle.
There is an increased dange rofskidding and risk of an accident.
X Only switch to SPORT handling mode in accordance with the conditions descri-
bed in the "Activating/deactivating ESP ®
"s ection (Y page73). Warning and indicator lamps in the instrument cluster
289On-board computer and displays Z

Warning/
indicator
lamp
N N
Signal type
Possiblec auses/consequences and M
M Solutions !
N
The red indicator lamp for the electric parking brake flashes or is lit and/or the
yellow warning lamp for the electric parking brake is lit.
X Observe the additiona ldisplay messages in the multifunction display. 6
N
The red restraint system warning lamp is lit while the engine is running.
The restraint system is faulty.
G WARNING
The airbags or beltt ensioners may either be triggere dunintentionally or, in the
event of an accident, may not be triggered.
This poses an increased risk of injury.
X Observe the additiona ldisplay messages in the multifunction display.
X Drive on carefully.
X Contact aqualified specialist worksho pimmediatel yand have the restraint sys-
tem checked.
For further information about the restraint system, see (Y page39). Engine
Warning/
indicator
lamp
N N
Signal type
Possiblec auses/consequences and M
M Solutions ;
N
The yellow engine diagnostics warning lamp lights up while the engine is run-
ning.
There may be afault, for example:
R in the engine management
R in the fuel injection system
R in the exhaust system
R in the ignitio nsystem (for vehicles with petrol engines)
R in the fuel system
The emission limi tvalues may be exceede dand the engine may be running in
emergency mode.
X Consult aqualified specialist worksho pimmediately.
Vehicles with adiesel engine: the fuel tank has been run dry (Y page169).
X Start the engine three to four times after refuelling.
If the yellow engine diagnostics warning lamp goes out, emergency running
mode is cancelled. The vehicl eneed not be checked. 8
N
The yellow reserve fuel warning lamp is on while the engine is running.
The fuel leve lhas dropped into the reserve range.
Operation of the auxiliary heating is deactivated if the fuel leve ldrops into the
reserve range.
X Refuel at the neares tfilling station. 290
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Warning/
indicator
lamp
N N
Signal type
Possiblec auses/consequences and M
MSolutions ?
N
The red coolant warning lamp lights up while the engine is running and the
coolant temperature gauge is at the start of the scale.
The temperature sensor for the coolant temperature gauge is faulty.
The coolant temperature is no longer being monitored .There is arisk of engine
damage if the coolant temperature is too high.
X Stop the vehicl eimmediately, paying attention to road and traffic conditions,
and switch off the engine. Do not continue driving under any circumstances.
X Safeguard the vehicl eagainst rolling away( Ypage1 72).
X Consult aqualified specialist workshop. Warning and indicator lamps in the instrument cluster
291On-board computer and displays Z

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

Warning/
indicator
lamp
N N
Signal type
Possiblec auses/consequences and M
MSolutions X
Make sure that the air supply to the engine radiator is not blocked ,e.g. by frozen
slush.
X If the coolant temperature is below 120 †, you can continue driving 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. Driving systems
Warning/
indicator
lamp
N N
Signal type
Possiblec auses/consequences and M
MSolutions ·
N
The red distance warning lamp lights up while the vehicl eisinmotion.
The distance to the vehicl einfront is too smal lfor the spee dselected.
X Increase the distance. ·
N
The red distance warning lamp lights up while the vehicl eisinmotion.Awarning
tone alsos ounds.
You are approaching avehicle, apedestrian or astationary obstacl einyourline of
travel at too high aspeed.
X Be prepared to brake immediately.
X Pay carefu lattention to the traffic situation. You may have to brake or take
evasive action.
Further information on PRE ‑SAFE®
Brake (Y page75).
For further information on the distance warning function of COLLISION PREVEN-
TION ASSIST PLUS, see (Y page69). Warning and indicator lamps in the instrument cluster
293On-board computer and displays Z

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

Vehicle
Warning/
indicator
lamp
N N
Signal type
Possibl ecauses/consequences and M
MSolutions Ð
N
The red powe rsteering warning lamp is li twhile the engine is running.
The powe rsteering assistance is faulty.
Aw arning tone also sounds.
G WARNING
Yo uw illn eedtou semore force to steer.
There is ariskofana ccident.
X Check whethe ryou are able to appl ythe extra force required.
If yo uare abl etosteer safely:
X Driv eonc arefully.
X Consult aquali fied specialist workshop immediately.
If yo uare unable to steer safely:
X Do not drive on.
X Consult aquali fied specialist workshop. Warning and indicator lamps in the instrumen
tcluster
295On-board computer and displays Z

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

Adjusting th
evolume X
Turn th ethumbwheel on th eright of th econ-
troller.
The volume is adjusted:
R for th ecurrentl yselected media source
R during traffic or navigation announcements
R in hands-free mod eduring aphone call
Switchin gthe soun don/off This function is no
tavailable for Mercedes-AMG
vehicles wit hselectable AM GPerformance
exhaust system.
X Press th ethumbwheel to th eright of th econ-
troller.
If th eaudio output is switched off ,the status
lin ew ill sho wthe 8 symbol. If you switch
th em edia source or set th evolume, th esound
is automatically switched on.
i Navigation message
swill be hear devenif
th es oun dism uted.
Functions The multimedia system has th
efollowin gfunc-
tions:
R radi omode
R media mod ewithm edia search
R soun dsystems
R navigation system
COMAND Online: navigation via th ehardd rive
Audio 20 :navigation via SD card
R communication functions
R vehicl efunction swiths ystem settings
R favourite sfunctions
Controller The controller in th
ecentre console let syou:
R select men uitems on th edisplay
R ente rcharacters
R select adestination on th emap
R sav eentries
The controller can be:
R turned 3
R slid lef torright1
R slid forward sorback4 R
slid diagonally 2
R presse dbriefl yorp ressedand held 7
Back button You can use the
%buttontoe xitam enuorto
call up th ebasic display of th ecurren toperating
mode.
X To exit th emenu: brieflypress the %
button.
The multimedia system changes to th enext
higher men ulevel in th ecurren toperating
mode.
X To call up th ebasic display: press the%
butto nfor longer than two seconds.
The multimedia system changes to th ebasic
display of th ecurren toperating mode. Touchpad
Switchin gthe touchpad on/off Multimedia system:
X Select Vehicle
VehicleQSy stem set‐
System set‐
tings tingsQ Activate touchpad
Activate touchpad.
The touchpad is activated Oor deactivated
ª.
Operating th etouchpad :
Touch-sensitive surface
; Favourite sbutton
= Calls up audio and telephon emenu( quick
access)
? Return stotheprevious display Operating system
297Multimedia system Z