2015 MERCEDES-BENZ C-CLASS COUPE engine

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

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

Stowage areas
Loading guidelines
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the boot
lid is open when the engine is running, espe-
cially if the vehicle is in motion. There is arisk
of poisoning.
Always switch off the engine before opening
the boot lid. Never drive with the boot lid
open. G
WARNING
If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is arisk of injury, especially
when braking or abruptly changing directions.
Always store objectssot hat they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey. G
WARNING
The exhaust tail pipe and tail pipe trim can
become very hot. If you come into contact
with these parts of the vehicle, you could burn
yourself. There is arisk of injury.
Always be particularly careful around the
exhaust tail pipe and the tail pipe trim. Allow
these components to cool down before touch-
ing them.
The handling characteristics of aladen vehicle
are dependent on the distribution of the load
within the vehicle. For this reason, you should
observe the following notes when transporting a
load:
R never exceed the maximum permissible gross
vehicle weight or the permissible axle loads
for the vehicle (including occupants).
R the boot is the preferred place to store
objects.
R position heavy loads as far forward as possi-
ble and as low down in the boot as possible. R
the load must not protrude above the upper
edge of the seat backrests.
R always place the load behind unoccupied
seats if possible.
R secure the load with sufficiently stronga nd
wear-resistant lashing material. Pad sharp
edges for protection.
i Load restraint
sare available at any qualified
specialist workshop, e.g. aMercedes-Benz
Service Centre. Stowage compartments
Important safety notes G
WARNING
If objectsint he passenger compartmen tare
stowed incorrectly, they can slide or be
thrown around and hit vehicle occupants. In
addition, cupholders, open stowage spaces
and mobile phone brackets cannot always
retain all objectst hey contain. There is arisk
of injury, particularly in the event of sudden
braking or asudden change in direction.
R Always stow objectssot hat they cannot be
thrown around in such situations.
R Always make sure that objectsdon ot pro-
trude from stowage spaces, parcel nets or
stowage nets.
R Close the lockable stowage spaces before
startingaj ourney.
R Always stow and secure heavy, hard, poin-
ted, sharp-edged, fragile or bulky objectsin
the boot.
Observe the loading guidelines (Y page 308).308
Stowage areasStowing and features

i
You can remove the ashtray inser
tand use
the resulting compartmen tfor stowage.
Rear-compartment ashtray X
To open: pull cover ;out by its top edge.
X To remove th einsert: push ribbing =from
the left side and pull insert :upwards.
X To fit th einsert: fit insert :intot he holder
from above and press down int othe holder
until it engages. Cigarett
elighter G
WARNING
You can burn yourself if you touc hthe hot
heatin gelemen torthe socket of the cigarette
lighter.
In addition ,flammable materials can ignit eif:
R the hot cigarett elighter falls
R ac hild holds the hot cigarett elighter to
objects, for example
There is arisk of fire and injury.
Always hold the cigarett elighter by the knob.
Always make sure that the cigarett elighter is
out of reach of children. Never leave children unattended in the vehicle.
Your attention must always be focused on the
traffic conditions. Only use the cigarett elighter
when road and traffic condition spermit. Example
X Turn the key to position 2in the ignition lock
(Y page 145).
X To open: open the stowage compartment
(Y page 309).
X Press in cigarett elighter ;.
Cigarette lighter ;will pop out automatically
when the heatin gelemen tisred-hot.
X To close: push cover :of the stowage com-
partmen tclosed. 12
Vsockets
Genera lnotes X
Turn the key to position 1in the ignition lock
(Y page 145).
The sockets can be used for accessories with a
maximum draw of 180 W(15 A). Accessories
include such item sasmobile phon echargers.
If you use the sockets for long periods when the engin eisswitched off, the battery may dis-
charge.
An emergenc ycut-of fensures that the on-board
voltage does not drop too low. If the on-board
voltage is too low, the power to the sockets is
automatically cut .This ensures that there is suf-
ficient power to star tthe engine.
If you have connected adevic etot he 12 V
socket, leave the cover of the stowage com-
partmen topen. This prevent sthe cover from
being blocked. 316
FeaturesStowing and features