2015 MERCEDES-BENZ C-CLASS COUPE check oil

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

Problems with the transmission
Problem
Possible causes/consequences and
M
MSolutions The transmission has
problems shifting gear. The transmission is losing oil.
X Have the transmission checked at aqualified specialist workshop
immediately. The acceleration ability
is deteriorating.
The transmission no lon-
ger changes gear. The transmission is in emergency mode.
It is only possible to shift into
secondgear and reverse gear.
X Stop.
X Shift the transmission to position P.
X Switch off the engine.
X Wait at least ten seconds before restarting the engine.
X Shift the transmission to position Dor R.
If D is selected, the transmission shifts into secondgear; ifRis
selected, the transmission shifts into reverse gear.
X Have the transmission checked at aqualified specialist workshop
immediately. Refuelling
Important safety notes
G
WARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is arisk of fire and explo-
sion.
You must avoid fire, naked flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before refuelling. G
WARNING
Fuels are poisonous and hazardous to health. There is adanger of injury.
Do not swallow fuel or let it come into contact
with skin, eyes or clothing. Do not inhale fuel
vapours. Keep fuels out of the reach of chil-
dren. If you or others come into contact with fuel,
observe the following:
R Wash the fuel off any affected areas of skin
with water and soap immediately.
R If you get fuel in your eyes, rinse them thor-
oughly with clean water immediately. Seek
immediate medical attention.
R If fuel is swallowed, seek immediate medi-
cal attention. Do not induce vomiting.
R Change any clothing that has come into
contact with fuel immediately. G
WARNING
Electrostatic charge can cause sparks and
thereby ignite fuel vapours. There is arisk of
fire and explosion.
Always touch the vehicle body before opening the fuel filler flap or touching the fuel pump
nozzle. This discharges any electrostatic
charge that may have built up.
Do not get into the vehicle again during the refu-
elling process. Otherwise, electrostatic charge
could build up again. G
WARNING
Vehicles with adiesel engine: 166
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
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

pressures
pressures
will
willbe
bedisplayed
displayed after a
after a
few minutes of driving
few minutes of driving message.
X Press the :button.
The Use
Use current
current pressures
pressures as
asnew
new ref‐
ref‐
erence values
erence values message is shown in the
multifunction display.
If you wish to confirm the restart: X Press the abutton.
The Tyre
Tyre press.
press. monitor
monitor restarted
restarted mes-
sage is shown in the multifunction display.
After you have driven for afew minutes, the
system checks whether the current tyre pres- sures are within the specified range. The new
tyre pressures are then accepted as refer-
ence valuesa nd monitored.
If you wish to cancelt he restart:
X Press the %button.
The tyre pressure valuess tored at the last
restart will continue to be monitored. Changing
awheel Flat tyre
You can find information on what to do in the
event of aflat tyre in the "Breakdown assis-
tance" section (Y page 337). Information on
driving with MOExtended tyres in the event of a flat tyre can be found under "Breakdown assis-
tance" (Y page 337).
Vehicles with an emergency spare wheel: in
the event of aflat tyre, the emergency spare
wheel is fitted according to the description
under "Fitting awheel" (Y page 362). Interchanging the wheels
G
WARNING
Interchanging the front and rear wheels may
severely impair the driving characteristics if
the wheels or tyres have different dimensions. The wheel brakes or suspension components may also be damaged. There is arisk of acci-
dent.
Interchange front and rear wheels only if the
wheels and tyres are of the same dimensions. !
On vehicles fitted with
atyre pressure mon-
itor, electronic componentsa re located in the
wheel.
Tyre-fitting tools should not be applied in the area of the valve, as this could damage the
electronic components.
Only have tyres changed at aqualified spe-
cialist workshop.
Interchanging the front and rear wheels of dif-
fering dimensions can render the general oper-
ating permit invalid.
Observe the instructionsa nd safety notes in the
"Fitting awheel" section (Y page 362).
The wear patterns on the front and rear tyres
differ depending on the operating conditions.
Interchange the wheels before aclear wear pat-
tern has formed on the tyres. Front tyres typi-
cally wear more on the shoulders and the rear
tyres in the centre.
On vehicles that have the same size front and
rear wheels, you can interchange the wheels
every 5,000 to 10,000 km depending on the
degree of tyre wear. Ensure the direction of
rotation is maintained.
Cleant he contact surfaces of the wheel and the
brake disc thoroughly every time awheel is
interchanged. Check the tyre pressure and, if
necessary, restart the tyre pressure loss warn-
ing system (Y page 358) or the tyre pressure
monitor (Y page 360). Direction of rotation
Tyres with aspecified direction of rotation have
additional benefits, e.g. if there is arisk of aqua-
planing. These advantages can only be gained if
the tyres are fitted corresponding to the direc-
tion of rotation.
An arrow on the sidewall of the tyre indicates its correct direction of rotation. Storing wheels
Store wheels in acool, dry and preferably dark
place if they are not being used. Protect the
tyres against oil, grease, petrol and diesel. Changing
awheel
361Wheels and tyres Z