2015 MERCEDES-BENZ C-CLASS COUPE ignition

Observe the service intervals in the Service
Booklet or contact
aqualified specialist work-
shop for more information.
! Alwaysh
ave work on the batteries carried
out at aqualified specialist workshop. Should
it, in exceptional circumstances, be abso-
lutely necessary to disconnect the 12-volt
battery yourself, please observe the follow-
ing:
R secure the vehicle to prevent it from rolling
away.
R switch the ignition off.
R first, disconnect the negative terminal, fol-
lowed by the positive terminal.
Vehicles with automatic transmission: the
transmission is locked in position Pafter dis-
connecting the battery.
After the work has been completed, firmly
reinstall the battery and the cover of the pos-
itive terminal.
Comply with safety precautions and take pro-
tective measures when handling batteries. Risk of explosion
Fire, naked flames and smoking are
prohibited when handling the bat-
tery. Avoid creating sparks.
Electrolyte or battery acid is corro-
sive. Avoid contact with the skin,
eyes or clothing.
Wear suitablep rotective clothing, in
particular gloves, an apron and a
face mask.
Immediately rinse electrolyte or acid
splashes off with clean water. Con-
sult adoctor if necessary. Wear eye protection.
Keep children away.
Observe this Owner's Manual. For safety reasons, Mercedes-Benz recom-
mends that you only use batteries which have
been tested and approved for your vehicle by
Mercedes-Benz.T
hese batteries provide
increased impact protection to prevent vehicle
occupants from suffering acid burns should the battery be damaged in the event of an accident.
In order for the battery to achieve the maximum possible service life, it must always be suffi-
ciently charged.
Like other batteries, the vehicle battery may
discharge over time if you do not use the vehicle.In such cases, have the battery disconnected ataq ualified specialist workshop. You can also
charge the battery with acharger recommended
by Mercedes-Benz.F or more information,
please contact aqualified specialist workshop.
Have the battery charge checked more fre-
quently if you use the vehicle mainly for short
trips or if you leave it standing idle for alengthy
period. Consult aqualified specialist workshop
if you wish to leave your vehicle parked up for a
long period of time.
When you park the vehicle, remove the key if you do not require any electrical consumers. The
vehicle will then use very little energy, thus con- serving battery power. Charging the 12
Vbattery
Vehicles with alithium-ion battery:
! Only use battery chargers with
amaximum
charging voltage of 14.4 V.
All other vehicles G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a risk of an explosion.
Particularlya void fire, naked flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over abattery. G
WARNING
Battery acid is caustic. There is arisk of injury.
Avoid contact with the skin, eyes or clothing.
Do not breathe in any battery gases. Do not
lean over the battery. Keep the batteries out Battery (vehicle)
343Breakdown assistance
Z

Do not us
earapid charging devic etostart the vehicle. If your vehicle's battery is discharged, the
engine can be jump-started fro manothe rvehicl eorf romas econd battery using jum pleads.
Observe the following points:
R The battery is not accessible in al lvehicles. If the othe rvehicle's battery is not accessible ,jump-
start the vehicl eusing asecond battery or ajump-starting device.
R Vehicle swithap etrolengine: onlyjump-star tthe vehicl ewhent he engine and exhaust system
ar ec old.
R Allv eh icle sexcept vehicle swithal ithium-io nbattery: do not start the engine if the battery
is frozen. Let the battery tha wfirst.
R Jump-starting ma yonlybep erforme dusing batteries with anominal voltag eof12V.
R Onl yusejum pleads thathaveas ufficient cross-sectio nand insulate dtermina lclamps.
R If the battery is full ydischarged, leav ethe battery tha tisb eing used to jump-star tconnected for
af ew minute sbefor ea ttempting to start. Thi scharge sthe empty battery alittle.
R Make sure tha tthe two vehicles do not touch.
Make sure that:
R The jum pleads aren ot damaged.
R Non-insulated parts of the termina lclamps do not come into contact with othe rmetalparts while
the jum pleads arec onnected to the battery.
R The jum pleads canno tcome into contact with parts which can mov ewhent he engine is running,
such as the V-bel tpulle yort he fan.
X Secure the vehicl ebyapplyingthe electri cparkin gb rake.
X Automatic transmission: shift the transmission to position P.
X Manual transmission: depress the clutch peda lfully and shift to neutral.
X Make sure tha tthe ignition is switched off .All indicator lamps in the instrument cluster must be
off .W henu sing the key ,tur nt he key to position 0in the ignition lock and remove it (Y page 145).
X Switch off al lelectrical consumers ,e.g.r ea rw indo wh eating, lighting etc.
X Open the bonnet. Positio
nnumber Bidentifie sthe charge dbattery of the othe rvehicl eorane quivalen tjump-starting
device. 346
Jump-startingBreakdow
nassistance

X
Slide cover Aof positive terminal :in the direction of the arrow.
X Connect positive terminal :on your vehicl etopositive terminal ;of dono rbattery Busing the
jump lead .Alway sbegin with positive terminal :on your ow nvehicl efirst.
X Start the engine of the dono rvehicl eand run it at idling speed.
X Connect negative terminal =of dono rbattery Bto earth point ?of your vehicl eusing the jump
lead ,connecting the jump lead to dono rbattery Bfirst.
X Start the engine.
X Before disconnecting the jump leads, le tthe engines run for several minutes.
X First, remove the jump lead sfrom earth point ?and negative terminal =,then from positive
clamp :and positive terminal ;.Begine acht ime at the contacts on your ow nvehicl efirst.
X Close cover Aof positive terminal :afte rremoving the jump leads.
X Have the battery checke dataqualified specialist workshop.
Jump-starting is not considered to be anorma loperating condition.
i Jump-starting cable
sand further information regarding jump starting can be obtaine datany
qualified specialist workshop. Towin
gawayand tow-starting Important safety notes
G
WARNING
Safety relevant functions are restricted or no
longer available if:
R the engine is not running
R the brake system or power steering is mal-
functioning
R there is amalfunction in the voltag esupply
or the vehicle's electrical system
Whe nyourv ehicl eist owedawayort owed
started, yo umay require considerably more
effort to stee rand brake. There is ariskofan
accident.
In such cases us earigid towing bar. Before
being towe dawayort ow started, make sure
the steering move sfreely. G
WARNING
If the steering wheel lock is engaged ,the vehi-
cle can no longer be steered .There is ariskof
an accident.
Alway sswitch on the ignition when towing
with atow rop eorat owing bar. G
WARNING
Whe ntowing or tow-starting another vehicle
and its weigh tisg reate rthan the permissible
gross weight of your vehicle, the:
R towing ey emay be torn off
R car/traile rcombination may swerve or
eve noverturn
There is ariskofana ccident.
Whe ntowing or tow-starting another vehicle,
its weight shoul dnot be greate rthan the per-
missible gross weight of your vehicle.
Details on the permissible gross vehicl eweight
of your vehicl ecan be found on the vehicl eide n-
tification plate (Y page 370).
! Whe
nCOLLISIO NPREVENTION ASSIST
PLUS, DISTRONIC PLU Sorthe HOLD function
is activated, the vehicl ebrakes automatically
in certain situations.
To avoid damag etothe vehicle, deactivate
thes esystems in the following or similar sit-
uations:
R when towing away
R in ac ar wash
! Make sure that the electri
cparking brake is
released .Ifthe electri cparking brake is faulty,
visit aquali fied specialist workshop.
! Only secure the tow cable or tow ba
rtothe
towing eyes or, if available ,tothe traile rtow Towin
gawayand tow-starting
347Breakdown assistance Z

Removin
gthe towin geye X
Loosen the towing ey eand unscrew it.
X Attach cover :to the bumpe rand press until
it engages.
X Pu tthe towing ey ebacki nto the vehicl etool
kit. Towin
gthe vehicle awa ywitht he rear
axl eraised
Whe ntowing your vehicl ewitht he rea raxle
raised ,itisimportant that yo uobserve the
safety instructions (Y page 347).
! Vehicles with automatic transmissio
nmust
not be towe dwitht he rea raxler aised .The
car/traile rcombination may otherwise
swerve or eve noverturn.
! The ignition mus
tbes witched off if yo uare
towing the vehicl ewitht he rea raxler aised.
Intervention by ESP ®
could otherwise dam-
ag et he brake system.
X Switch on the hazard warning lamps
(Y page 120).
X Move the front wheel stothe straight-ahead
position.
X If necessary, turn the key in the ignition lock
to position 0and remove the key from the
ignition lock.
X Whe nleaving the vehicle, take the key with
you. Towin
gthe vehicle with both axles on
the ground
Vehicles with automati ctransmission: the
automatic transmissio nautomaticall yshifts to
position Pwhen yo uopent he driver' sorfront-
passenger doo rorwheny ou remove the key
from the ignition lock. In order to ensure that the automatic transmissio nstay sinp osition N
when towing away the vehicle, yo umustd othe
following:
X Make sure that the vehicl eisstationary.
X Turn the key to position 2in the ignition lock. X
Depress the brake pedal and keep it
depressed.
X Shif tthe automatic transmissio ntoposition
N.
Vehicles with manual transmission: X Turn the key to position 2in the ignition lock.
X Depress the brake pedal and keep it
depressed.
X Depress the clutch pedal fully and shift to
neutral.
Vehicles with manual or automati ctrans-
mission:
X Leave the key in position 2in the ignition lock.
X Releas ethe brake pedal.
X Releas ethe electri cparking brake.
X Switch on the hazard warning lamps
(Y page 120).
In order to signal achange of direction when
towing the vehicl ewitht he hazard warning
lamps switched on, us ethe combination switch
as usual. In this case, only the turn signal sfor
the desire ddirection flash. Whe nyou reset the
combination switch, the hazard warning lamps
star tflashing again. Transporting the vehicle
Vehicles with automati ctransmission !
Whe
nthe vehicl eisloaded for transport, the
front and rea raxles mus tbes tationary and on
the same transportation vehicle. Positioning
ove rthe connection point of the transport
vehicl eisnot permitted. The drive trai nmay
otherwise be damaged. Towin
gawayand tow-starting
349Breakdown assistance Z

All vehicles
!
You may only secure th
evehicl ebyt he
wheels, no tbypartsoft hevehicl esuchas
axl eors teering components. Otherwise ,the
vehicl ecould be damaged.
The towin geyes or trailer to whitch can be used
to pull th evehicl eontoa trailer or transporte rif
you wish to transpor tit.
X Vehicles wit
hmanua ltra nsmission:
depress th eclutch pedal fully and engage
neutral.
X Vehicles wit
hautomatic transmission:
tur nthe keyt op osition 2in th eignition lock.
X Shift th eautomatic transmission to position
N.
As soon as th evehicle is loaded:
X Preven tthe vehicl efromr ollin gaway by
applyin gthe electric parking brake.
X Vehicles wit
hmanua ltra nsmission:
depress th eclutch pedal fully and engage first
or revers egear.
X Vehicles wit
hautomatic transmission:
shif tthe automatic transmission to position
P.
X Turn th ekeyto position 0in th eignition lock
and remove it.
X Secur ethe vehicle. Tow-starting (emergency engine
starting)
! Do no
ttow -star tvehicles wit hautomatic
transmission .You could otherwise damage
th ea utomatic transmission.
i You can fin
dinformation on "Jump-starting"
under (Y page 345).
Befor etow -starting ,the followin gconditi ons
mus tbef ulfilled:
R theb attery is connected
R thee ngineh as cooled down
R thee xhaust system has cooled down
When tow-starting ,itisimportant that you
observ ethe safet ynotes ( Ypage 347) and the
legal requirements in eac hrespective country.
X Switc hont hehazard warning lamps
(Y page 120).
X Fit th etow inge ye (Y page 348). X
Secur ethe rigid towin gbar or th etow ing
rope.
X Depress th ebrak epedal and keep it
depressed.
X Turn th ekeyto position 2in th eignition lock.
X Depress th eclutch pedal fully, engage 2nd
gear and continu etokeept he clutch pedal
fully depressed.
X Releas ethe brak epedal.
X Tow-start th evehicle.
X Releas ethe clutch pedal slowly; do not
depress th eaccelerato rpedal while doin gso.
X When th eengineh as been started, immedi-
ately depress th eclutch pedal fully and shift
to neutral.
X Pull ove ratasuitable plac eand stop th evehi-
cle safely, payin gattention to road and traffic
conditions.
X Use th eelectric parking brak etosecure the
vehicl eand preven titfromr ollin gaway.
X Remove th erigid towin gbar or towin grope.
X Remove th etow inge ye (Y page 349).
X Switc hoff th ehazard warning lamps. Electrical fuses
Important safety notes
G
WARNING
If you manipulate, bridge or replace afaulty
fus ew ithaf useofah igher amperage ,the
electric cables could be overloaded. This may result in afire. There is ariskofana ccident
and injury.
Always replace fault yfuses wit hspecifie dnew
fuses of th ecorrect amperage.
Blown fuses mus tbereplace dwithf uses of the
sam erating ,whic hy ou can recognise by the
colour and fus erating .The fus erating sare listed
in th efusea llocation chart.
The fus eallocation chart is on th efus eb ox in the
boot (Y page 352).
If th enewly inserted fus ealso blows ,havet he
caus etrace da nd rectifie dataqualified special-
ist workshop ,e.g.a Mercedes-Benz Service
Centre.
! Only use fuses that hav
ebeen approve dfor
Mercedes-Benz vehicles and whic hhavet he 350
Electrical fusesBreakdown assistance

correct fus
erating for the system concerned.
Otherwise, components or systems could be
damaged.
! Make sure that no moistur
ecan enter the
fus eb ox whe nthe cover is open.
! Whe
nclosing the cover ,make sure that it is
lying correctly on the fus ebox. Moistur eseep-
ing in or dirt could otherwise impai rthe oper-
ation of the fuses.
The fuses in your vehicle disconnect faulty cir-
cuits. If afuseb lows ,allthe components on the
circuit and thei rfunctions will fail. Before replacing
afuse
Observe the important safety notes
(Y page 350)
X Switch off the engine.
X Switch off al lelectrical consumers.
X Safeguard the vehicle against rolling away
(Y page 172).
X Remove the key from the ignition lock.
or, on vehicle swithK EYLESS-G Ostartfunction
or KEYLESS ‑GO:
X Ope nthe driver' sdoor.
The on-board electronics now have status 0.
Thi sist he sam easthe key having been
removed.
The driver' sdoorc an be closed again.
All indicator lamps in the instrument cluster
mus tbeo ff.
The fuses are located in variou sfuseb oxes:
R fus ebox on the driver' ssideoft he dashboard
R fus eb ox in the front-passenger footwell
R fus eb ox in the engine compartment on the
driver' sside
R fus eb ox under the boo tfloor on the right-
hand sid eofthe vehicle ,whenv iewe dint he
direction of travel Dashboard fuse box
! Do not us
eapointed object such as ascrew-
driver to ope nthe cover in the dashboard. You
could damag ethe dashboard or the cover. X
Ope nthe driver' sdoor.
X To open: pull outcover :slightl yatthe bot-
tom in the direction of arrow =.
X Fold cover :outwards in the direction of
arrow ;.
X To close: foldinc over:unti lite ngages. Fus
eboxin the front-passenge rfoot-
well X
Ope nthe front-passenger door.
X To open: foldc over :outtowards the rear
and remove it.
X To close: clipinc over:at the rear.
X Fold cover :forward suntilite ngages. Fus
eboxin the engine compartment G
WARNING
Whe nthe bonne tiso pen, and the windscreen
wiper sare set in motion, yo ucan be injured by
the wiper linkage .There is ariskofi njury.
Alway sswitch off the windscreen wiper sand
the ignition before opening the bonnet. Electrical fuses
351Breakdown assistance Z

This improves the ride comfor
tofyour vehicle;
however, fuel consumption may increase
slightly. Tyrep
ressure loss warning system
General notes While the vehicle is in motion
,the tyre pressure
loss warning system monitors the set tyre pres-
sure using the rotational speed of the wheels.
This enables the system to detect significant
pressure loss in atyre. If the speed of rotation of
aw heel changes as aresult of aloss of pressure,
ac orresponding warning message will appear in
the multifunction display.
You can recognise the tyre pressure loss warn-
ing by the Run Flat Indicator active
Run Flat Indicator active
Restart with OK Restart with OK message which appears in
the Service
Service menu of the multifunction display.
Information on the message display can be
found in the "Restarting the tyre pressure loss
warning system" section (Y page 358).
Important safety notes The tyre pressure warning system does not warn
you of an incorrectly set tyre pressure. Observe the notes on the recommended tyre pressure
(Y page 356).
The tyre pressure loss warning does not replace the need to regularly check the tyre pressures.
An even loss of pressure on several tyres at the
same time cannot be detected by the tyre pres-
sure loss warning system.
The tyre pressure monitor is not able to warn
you of asudden loss of pressure, e.g. if the tyre
is penetrated by aforeign object .Inthe event of
as udden loss of pressure, bring the vehicle to a
halt by braking carefully. Avoid abrupt steering
manoeuvres.
The function of the tyre pressure loss warning
system is limited or delayed if:
R snow chains are fitted to your vehicle's tyres.
R road conditions are wintry.
R you are driving on sand or gravel.
R you adopt avery sporty driving style (corner-
ing at high speeds or driving with high rates of
acceleration).
R you are towing avery heavy or large trailer. R
you are driving with aheavy load (in the vehi-
cle or on the roof).
R
Restarting the tyrep ressureloss warn-
ing system Restart the tyre pressure loss warning system if
you have:
R changed the tyre pressure
R changed the wheels or tyres
R fitted new wheels or tyres
X Before restarting, make sure that the tyre
pressures are set properly on all four tyres for
the respective operating conditions. The rec-
ommended tyre pressures can be found in the
tyre pressure table on the fuel filler flap.
The tyre pressure loss warning system can
only give reliable warnings if you have set the correc ttyre pressure. If an incorrect tyre
pressure is set, these incorrect values will be
monitored.
X Observe the notes in the section on tyre pres-
sures (Y page 356).
X Make sure that the key is in position 2in the
ignition lock (Y page 145).
X Press òon the steerin gwheel to call up
the menu list.
X Press 9or: on the steerin gwheel to
select the Service Servicemenu.
X Confirm by pressing aon the steering
wheel.
X Select Tyre pressure
Tyre pressure with9 or:.
X Press ato confirm.
The Run
Run Flat
Flat Indicator
Indicator active
activeRestart
Restart
with OK
with OK message is shown in the multifunc-
tion display.
If you wish to confirm the restart: X Press the abutton.
The Tyre pressure now OK?
Tyre pressure now OK? message is
shown in the multifunction display.
X Select Yes
Yeswith 9 or:.
X Press ato confirm.
The Run Flat Indicator restarted
Run Flat Indicator restarted mes-
sage is shown in the multifunction display.
After ateach-in period, the tyre pressure loss
warning system will monitor the set tyre pres- sures of all four tyres. 358
Tyrep
ressureWheels and tyres

Fitting
awheel
Preparing th evehicle X
Stop th evehicl eons olid, non-slippery and
leve lground.
X Apply th eelectric parking brak emanually.
X Mov ethe fron twheels to th estraight-ahead
position.
X Vehicles with manua
ltra nsmission:
depress th eclutch pedal fully and engage first
or revers egear.
X Vehicles with automatic transmission:
shif tthe automatic transmission to position
P.
X Mak esure that th evehicl eleve liss et to "Nor-
mal" on vehicles wit hAIRMATIC (Y page 195).
X Switc hoff th eengine.
X Vehicles without KEYLESS-GO: remove the
ke yf romt heignition lock.
X Vehicles with KEYLESS-GO start-function
or KEYLESS-GO: open thedriver' sdoor.
The on-board electronics no whave status 0.
This is th esam east hekeyh aving been
removed.
X Vehicles with KEYLESS-GO start-function
or KEYLESS-GO: remove theStart/Sto pbut-
to nf romt heignition loc k(Ypage 145).
X If included in th evehicl eequipment, remove
th et yre-chang etoolkit from th evehicle.
X Safeguar dthe vehicl eagainst rollin gaway.
i Apart from som
ecountry-specific variants,
vehicles are no tequipped wit htyre-changing
tools. Some tools for changing awhee lare
specific to th evehicle. Fo rmorei nformation
on whic htools are require dtoperforma
whee lcha ng eony our vehicle, consult aquali-
fie ds pecialist workshop.
Necessary tyre-changing tools may include,
for example:
R Jack
R Whee lchock
R Whee lwrench
R Centring pin Securing th
evehicle against rolling
away If your vehicl
eisequipped wit hawheelchock ,it
can be foun dinthetyre-chang etoolkit
(Y page 336).
The foldin gwhee lchock is an additional secur-
ing measure to safeguar dthe vehicl efromr oll-
ing away, for exampl ewhen changing awheel.
X Fold bot hplates upwards :.
X Fold out lower plate ;.
X Inser tthe lugs on th elower plat efully int othe
opening sinbase plate =. X
Plac echock soro ther suitable items under
th ef ront and rear of th ewhee ltha tisd iago-
nally opposit ethe whee lyou wish to change.
Raising th evehicle G
WARNING
If you do no tposition th ejackc orre ctly at the
appropriat ejackin gpointoft hevehicle, the
jac kc ould ti poverw itht he vehicl eraised.
Ther eisar iskofi njury.
Only position th ejac katt heappropriat ejack-
ing poin tofthevehicle. The base of th ejack 362
Changing
awheelWheels and ty res