2015 MERCEDES-BENZ C-CLASS COUPE oil level

ECO start/stop function
Automatic engine start .................. 150
Automatic engine switch-off .......... 149
Climat econtrol
(THERMOTRONIC) .......................... 131
Deactivating/activatin g................. 151
Genera linformation ....................... 149
Important safety notes .................. 149
Introduction ................................... 149
Electromagnetic compatibility
Declaratio nofconformity ................ 27
Electroni cStability Program
see ESP ®
(Electroni cStability Program)
Emergency
Automatic measure safter an acci-
dent ................................................. 55
Emergency key
Unlocking the driver's door .............. 88
Emergency key element
Function/notes ................................ 82
General notes .................................. 82
Inserting .......................................... 83
Locking vehicle ................................ 88
Removing ......................................... 83
Emergency release
Driver's door ................................... .88
Emergency spare wheel
General note s............................... .367
Important safety note s................. .367
Technical data .............................. .367
Emergency unlocking
Vehicle ............................................. 88
Engine
Display message ............................ 266
ECO start/stop function ................ 149
Engine numbe r............................... 371
Jump-starting ................................. 345
Running irregularl y......................... 153
Starting (important safety notes )... 147
Starting problems .......................... 153
Starting the engine with the key .... 147
Starting with the Start/Sto pbut-
ton ................................................. 148
Stopping ........................................ 173
Tow-starting (vehicle )..................... 350
Warning lamp (engine diagnos-
tics) ............................................... 290 Engine electronics
Note s............................................. 369
Problem (fault) ............................... 153
Engine oil
Additives ........................................ 376
Checking the oi llev el ..................... 323
Checking the oi llev el using the
dipstick .......................................... 323
Displa ymessage ............................ 268
Filling capacity ............................... 375
Genera lnotes ................................ 375
Note sabout oilg rade s................... 375
Note sono illevel/consumption .... 323
Temperature (on-board computer, Mercedes-AM Gvehicles) ............... 249
Topping up ..................................... 323
Entering an address
See also Digital Owner' sManual... 296
Environmental protection
Returning an end-of-life vehicl e....... 25
ESP ®
(Electroni cStability Pro-
gram)
AMG menu (on-board computer) ... 250
Characteristics ................................. 72
Crosswind Assist ............................. 75
Deactivating/activating (button
in Mercedes-AM Gvehicles) ............. 73
Deactivating/activating (except
Mercedes‑ AMG vehicles) ................. 72
Deactivating/activating (on-
board computer, except
Mercedes-AM Gvehicles) ............... 244
Displa ymessage ............................ 254
Function/note s................................ 71
Genera lnotes .................................. 71
Important safety guideline s............. 72
Trailer stabilisation .......................... 74
Warning lamp ................................. 287
ETS/4ETS (Electroni cTraction Sys-
tem) ...................................................... 72
Exhaust
see Exhaus tpipe
Exhaus tpipe
Cleaning ......................................... 331
Exterior lighting
Cleaning ......................................... 330
see Lights 10
Index

Owner’s Manual
Owner’s Manual
message is shown in the mul-
tifunction display.
If you drive the vehicle faster than 15 km/h after
topping up, the Refill RefillAdBlue
AdBlueSee
SeeOwner’s
Owner’s
Manual
Manual message goes out after approximately
one minute.
When the AdBlue ®
supplyd rops toaminimum,
the Refill AdBlue No start in ... mi
Refill AdBlue No start in ... mi
message is shown in the multifunction display.
When the Refill
Refill AdBlue AdBlueNo
Nostart
start in
in...
...
mi
mi message is shown in the multifunction dis-
play,y ou can still drive the vehicle over the dis-
tance shown. If the AdBlue ®
is not topped up,
you will subsequently be unable to start the
engine.Ift heRefill AdBlue Start not
Refill AdBlue Start not
possible
possible message appears in the multifunction
displaya nd the engine does not start, you must
top up AdBlue ®
.
X Add at least 3.5 lofAdBlue ®
.
X Switch on the ignition for at least 60 seconds.
X Start the engine.
i You can also have the AdBlue ®
tank refilled
at aq ualified specialist workshop.
Before driving your vehicle outside Europe, have
the AdBlue ®
supplyc hecked at aqualified spe-
cialist workshop.
Further information aboutB lueTEC exhaust gas
aftertreatmenta nd aboutAdBlue®
can
be obtained from any Mercedes-Benz Service
Centre.
Important safety notes AdBlue
®
is aw ater-solublef luid for the exhaust
gas aftertreatmentofd iesel engines. It is:
R non-toxic
R colourless and odourless
R non-flammable
If you open the AdBlue ®
tank, small amounts of
ammonia vapour may be released.
Ammonia vapours have apungent odour and are
particularlyi rritating to the skin, to mucous
membranes and to the eyes. You may experi-
ence aburning sensation in your eyes, nose and
throat. You may also experience coughing and
watery eyes.
Do not inhale any ammonia vapours that may be
released.O nly fill the AdBlue ®
tank in well-ven-
tilated areas. Do not swallow AdBlue
®
or let it come into con-
tact with skin, eyes or clothing. Keep AdBlue ®
awayf rom children.
If you or others come into contact with AdBlue ®
,
observe the following:
R immediately rinse AdBlue ®
off your skin with
soap and water.
R if AdBlue ®
comes into contact with your eyes,
immediately rinse them thoroughly with clean water. Seek medical attention immediately.
R if AdBlue ®
is swallowed, immediately rinse
your mouth out thoroughly. Drink plenty of
water. Seek medical attention immediately.
R change immediately out of clothing that has
come into contact with AdBlue ®
.
! Only use AdBlue ®
in accordance with
ISO 22241. Do not mix any additives with
AdBlue ®
,a nd do not dilute AdBlue ®
with
water. This may destroy the BlueTEC exhaust
gas aftertreatments ystem.
! In order to fill the AdBlue ®
tank, the vehicle
must be parked on alevel surface. The
AdBlue ®
tank can only be filled as intended
with the vehicle parked on alevel surface.
Fluctuations in capacity will thus be avoided.
Filling avehicle standing on an uneven sur-
face is not permitted. There is adanger of
overfilling, which can cause damage to Blue-
TEC exhaust gas aftertreatmentc omponents.
! Surfaces which have come into contact with
AdBlue ®
while refilling should be rinsed
immediately with water, or remove AdBlue ®
with amoist cloth and cold water. If AdBlue ®
has already crystallised,u seasponge and
cold water to clean the area. AdBlue ®
residue
crystallises after acertain amount of time and
soils the affected surfaces.
! AdBlue ®
is not afuel additive and must not
be added to the fuel tank. If AdBlue ®
is added
to the fuel tank, this can lead to engine dam-
age.
Have the AdBlue ®
tank refilled at aqualified
specialist workshop. However, you can also top
up the AdBlue ®
tank:
R at afilling station with an AdBlue ®
filling pump
R with AdBlue ®
refill bottles
R with an AdBlue ®
refill canister 170
RefuellingDriving and parking

Display messages
Possible causes/consequences and
M
MSolutions #
Sto
pv ehicl eSee
Sto pv ehicl eSee
Owner' sManual
Owner' sManual The battery is no longer bein
gcharged and th ebattery charg elevel is
to ol ow.
Aw arning tone also sounds.
X Stop th evehicl eimmediately, payin gattention to roa dand traffic
conditions, and switch off th eengine.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Observ ethe instruction sinthe# See SeeOwner's
Owner's Manual
Manualdisplay
message.
X Consult aqualified specialist workshop. #
Sto
pv ehicl eLeave
Sto pv ehicl eLeave
engine running engine running The battery charg
elevel is to olow.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions. Do no tcontinue driving
under any circumstances.
X Start th eengine.
X Wait until th edisplay message disappear sbefore pullin gaway. #
Start engine See Start engine See
Owner'
sManual
Owner' sManual The engin
eisoff and th ebattery charg elevel is to olow.
X Switc hoff electrical consumer sthaty ou do no tneed, suc hasthe
rear window heating and interior lighting.
X Leav ethe engin erunnin gfor afew minutes, or drive for alonger
distance.
The battery charges. 4
Check Check
eng.
eng.oil
oillev.
lev.
when
when next
nextrefuelling
refuelling The engin
eoil level has dropped to th eminimum level.
Aw arning tone also sounds.
! Avoid lon
gjou rneys when there is to olittl ec oolan tint hecooling
system. Otherwise th eenginew ill be damaged.
X Chec kthe oil level when next refuelling, at th elatest (Y page 323).
X If necessary, to puptheengin eoil (Y page 323).
If you have to top up th eengin eoil frequently:
X Contac taqualified specialist workshop and hav ethe engine
checked.
Information on approve dengineo ils can be obtained from aqualified
specialist workshop or on th eInterne tath ttp:// bevo.mercedes-
benz.com. 268
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
M
MSolutions 4
Add
1litre engine
Add 1litre engine
oil whe nnextr efu‐
oil whe nnextr efu‐
elling elling The engin
eoil level has dropped to th eminimum level.
! Avoid lon
gjou rneys when there is to olittl ec oolan tint hecooling
system. Otherwise th eenginew ill be damaged.
X Chec kthe oil level when next refuelling, at th elatest (Y page 323).
X If necessary, to puptheengin eoil (Y page 323).
If you have to top up th eengin eoil frequently:
X Contac taqualified specialist workshop and hav ethe engine
checked.
Information on approve dengineo ils can be obtained from aqualified
specialist workshop or on th eInterne tath ttp:// bevo.mercedes-
benz.com. 4
Engine oil level Engine oil level
Stop Stop
vehicle
vehicle Switch
Switch
engine off
engine off The engin
eoil level is to olow. There is ariskofe ngined amage.
X Stop th evehicl eimmediately, payin gattention to roa dand traffic
conditions, and switch off th eengine.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Chec kthe engin eoil level (Y page 323).
X If necessary, to puptheengin eoil (Y page 323). 8
Reserv
efuell evel
Reserv efuell evel The fuel level has dropped int
othe reserv erange.
Operation of th eauxiliar yheating is deactivated if th efuel level drops
int ot he reserv erange.
X Refue lattheneares tfilling station. C There is ver
ylittl efuel in th efuel tank.
The auxiliary heating canno tbeoperated.
X Refue lattheneares tfilling station without fail. ¸
Replac
eair cleaner
Replac eair cleaner Vehicles wit
hadiesel engine: th eenginea ir filter is dirty and mus tbe
replaced.
X Consult aqualified specialist workshop. !
Clean the fue
lfil‐
Clean the fue lfil‐
ter ter Vehicles wit
hadiesel engine: there is water in th efuel filter. The water
mus tbed rainedoff.
X Consult aqualified specialist workshop. Refill AdBlue See
Refill AdBlue See
Owner’
sManual
Owner’ sManual The AdBlue
®
level has fallen belo wthe reserv erange. Awarning tone
also sounds.
X Refill AdBlue ®
as soo naspossible(Ypage 169). Refill AdBlue No Refill AdBlue No
start in ... mi start in ... mi
The AdBlue
®
level is only sufficien tfor th eindicated distance. Awarn-
ing tone also sounds.
X Refill AdBlue ®
immediately (Y page 169).
i If you drive th
evehicl efaste rtha n15k m/hthe Refill Refill AdBlue
AdBlue
No start in ... mi No start in ... mi message goesout after approximately one
minute. Display
messages
269On-boardcomputer an ddisplays Z

Engine oil
Important safety notes G
WARNING
Certain component sintheengine compart-
men tcoul dbev eryh ot,e .g.t he engine ,the
radiator and part softheexhaust system.
Ther eisar isk of injury when accessing the
engine compartment.
As far as possible, allow th eengine to cool
down and only touch th ecomponent sdescri-
bed in th efollowing. G
WARNING
If engine oil comes int ocontac twith hot com-
ponent sintheengine compartment, it may
ignite .Ther eisar isk of fir eand injury.
Mak esure that engine oil does no tspill out
ove rthe fille rneck. Allo wthe engine to cool
down and thoroughly clean th ecomponents
that have com eintoc ontac twith engine oil
before you start th eengine.
General notes Dependin
gonyour driving style, th evehicle
consume supto0.8litres of oil per 1,000 km.
The oil consumptio nmay be higher than this
when th evehicle is new or if you frequently drive
at high engine speeds.
Dependin gontheengine ,the oil dipstick may be
installed at adifferen tlocation.
When checking th eoil level:
R park th evehicle on aleve lsurface
R thee ngine shoul dbeswitched off for approx-
imately fiv eminute siftheengine is at normal
operatin gtem perature
R all vehicle s(excep tMercedes-AM GC63/C
63S): if th eengine is no tatnormaloperating
temperature, e.g .iftheengine was only star-
te db riefly, wait approximately 30 minutes
before carryin gout th emeasurement
The oil leve loftheMercedes-AM GC63/C6 3S
must be checked only when th eengine is at
normal operatin gtem perature. Checking th
eoil level usin gthe oil dip-
stick Example
X Pull oil dipstick :out of th eoil dipstick tube.
X Wipe off oil dipstick :.
X Slowly slide dipstick :intothe guide tub eto
th es top, and tak eitout again after approx-
imately 3seconds.
If th eleve lisb etween MIN mark =and MAX
mark ;,theoil leve liscorrect.
X If th eoil leve lhas dropped to MIN mark =or
below, to pupwith 1.0lof engine oil.
Toppin gupengine oil H
Environmental note
When toppin guptheoil, tak ecaren otto spill
any. If oil enters th esoil or waterways, it is
harmful to th eenvironment.
! Only use engine oils and oil filters that have
been approved for vehicle swithaservic esys-
tem. You can obtain alist of th eengine oils
and oil filters tested and approved in accord- anc ewith th eMercedes-Ben zSpecifications
for Servic eProduct satany Mercedes-Benz
Servic eCentre.
Damage to th eengine or exhaust system is
caused by th efollowing:
R usin gengine oils and oil filters that have not
been specifically approved for th eservice
system
R changing th eengine oil and oil filter after
missing th echang einterval required by the
servic esystem
R usin gengine oil additives
! Do no
tadd to omucho il. Topping up with too
muc hengine oil can result in damag etothe Engine compartment
323Maintenance and care Z

engine or to the catalytic converter. Have
exces
sengine oil siphoned off. Example
X Turn cap :anti-clockwise and remove it.
X Top up the engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick ,top up with 1.0 lofe ngine oil.
X Replace cap :on the filler neck and turn
clockwise.
Make sure that the cap locks securely into
place.
X Check the oil leve lagain with the oil dipstick
(Y pag e323).
For further information on engine oil ,see
(Y pag e375). Other service products
Important safety notes G
WARNING
Certain components in the engine compart-
ment coul dbevery hot, e.g. the engine, the
radiator and parts of the exhaust system.
There is arisk of injury when accessing the
engine compartment.
As far as possible ,allow the engine to cool
dow nand only touch the components descri-
bed in the following. G
WARNING
The cooling system is pressurised, particu-
larl yw hen the engine is warm. If you open the
cap, you coul dbescalded if hot coolant
sprays out. There is arisk of injury. Let the engine cool dow
nbefore you open the
cap. Wea rglove sand eye protection. Open
the cap slowly to release the pressure. G
WARNING
If windscreen washer concentrate comes into contact with hot components of the engine or
the exhaust system, it can ignite. There is a
risk of fire and injury.
Make sure the windscreen washer concen-
trate does not come into contact with the filler neck.
Checking the coolan tlevel X
Park the vehicl eonalevelsurface.
Only check the coolant leve lifthe vehicl eis
on aleve lsurface and the engine has cooled
down.
X Turn the key to position 2in the ignition lock
(Y pag e145).
or
X On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page145).
X Check the coolant temperature display in the
instrument cluster (Y page233).
The coolant temperature must be below
70 †.
X Turn the key to position 0(Y pag e145).
or
X On vehicles with KEYLESS-GO, pul lthe Start/
Stop button from the ignition lock
(Y pag e145).
X Slowl yturn cap :halfat urn anti-clockwise
to allow excess pressure to escape. 324
Engine compartmentMaintenance and care

X
Turn cap :further anti-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the filler neck when cold, there is enough
coolant in coolant expansion tank ;.
If the coolant level is approximately 1.5 cm
above marker bar =in the filler neck when
warm, there is enough coolant in coolant
expansion tank ;.
X If necessary, top up with coolant that has
been tested and approved by Mercedes-Benz.
X Replace cap :and turn it clockwise as far as
it will go.
Further information on coolant (Y page 376).
Topping up the windscreen washer sys- tem X
To open: pull cap:upwards by the tab and
open.
X Top up with the premixed washer fluid.
X To close: press cap :ontot he filler neck
until it engages.
If the washer fluid level drops below the recom- mended minimum of 1litre, amessage appears
in the multifunction display promptin gyou to
top up the washer fluid (Y page 283).
Further information on windscreen washer
fluid/antifreez e(Ypage 377). ASSYST PLUS
Service message
The ASSYST PLUS service interval display
inform syou of the next service due date.
Information on the type of service and service
intervals (see the separate Servic eBooklet). You can obtain further information from a
Mercedes-Benz Servic
eCentre.
i The ASSYST PLUS service interval display
does not show any information on the engine oil level. Observe the notes on the engine oil
level (Y page 323).
The multifunction display shows aservice mes-
sage for afew seconds, e.g.:
R Service AinXXd ays
Service AinXXd ays
R Service Adue
Service Adue
R Service Aoverdue by XX days
Service Aoverdue by XX days
Dependin gonthe operating conditions of the
vehicle, the remaining time or distance until the
next service due date is displayed.
The letter indicates which service is due. A A
stands for aminor service and B
Bfor am ajor ser-
vice. Anumber or another letter may be dis-
played after the letter.
Only for certain countries: the position after the
letter A
A or B Bindicates any necessary additional
maintenance work. If you notify aqualified spe-
cialist workshop of this display ,you will receive
as tatement on the associated costs.
The ASSYST PLUS service interval display does
not take into account any periods of time during which the battery is disconnected.
Maintaining the time-dependent service sched-
ule:
X Note down the service due date displayed in
the multifunction display before disconnect-
ing the battery.
or
X After reconnecting the battery, subtract the
battery disconnection periods from the ser-
vice date shown on the display. Hiding service messages
X Press the aor% button on the steering
wheel. Displaying service messages
X Switch the ignition on.
X Use ò on the steerin gwheel to call up the
list of menus. ASSYST PLUS
325Maintenance and care Z

external forc
eonthe brake discs. This could
impair the level of comfort when braking. X
Unscrew the uppermost wheel bolt com-
pletely.
X Screw centring pin :into the thread instead
of the wheel bolt.
X Unscrew the remainin gwheel bolts fully.
X Remove the wheel.
Fitting anew wheel G
WARNING
Oiled or greased wheel bolts or damaged
wheel bolts/hub threads can cause the wheel bolts to come loose. As aresult, you could
lose awheel while driving. There is arisk of
accident.
Never oil or grease wheel bolts. In the event of damage to the threads, contact aqualified
specialist workshop immediately. Have the
damaged wheel bolts or hub threads
replaced/renewed. Do not continue driving. G
WARNING
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip
over. There is arisk of injury.
Only tighten the wheel bolts or wheel nuts
when the vehicle is on the ground.
It is imperative to observe the instructions and
safety notes on "Changing awheel"
(Y page 361).
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety rea-
sons, Mercedes-Benz recommends that you
only use wheel bolts which have been approved for Mercedes-Benz vehicles and the respective
wheel.
! Mercedes AMG vehicles with ceramic-
brak edisc: during removal and repositioning
of the wheel, the wheel rim can strik ethe
ceramic-brak edisc and damage it. Therefore,
take precaution sand have asecon dperson
assist you. Alternatively, you can use asec-
ond centring pin. X
Clean the wheel and wheel hub contact sur-
faces.
X Slide the wheel to be mounted ontot he cen-
trin gpin and push it on.
X Tighten the wheel bolts until they are finger-
tight.
X Unscrew the centring pin.
X Tighten the last wheel bolt until it is finger-
tight.
Lowering the vehicle G
WARNING
The wheels could work loose if the wheel nuts and bolts are not tightened to the specified
tightening torque. There is arisk of accident.
Have the tightening torque immediately
checked at aqualified specialist workshop
after awheel is changed.
X Turn the cran kofthe jack anti-clockwise until
the vehicle is oncea gain standingfirmly on
the ground.
X Place the jack to one side. Changing
awheel
365Wheels and tyres Z