2017 MERCEDES-BENZ C-Class COUPE key

Problems with the engine
ProblemPossible causes/consequences andMSolutions
The engine does not
start. The starter motor
can be heard.RThere isamalfunction in the engine electronics.
RThere is amalfunction in the fuel supply.
Before attempting to start the engine again:
XTurn the SmartKey back to position 0in the ignition lock.
or
XPress the Start/Stop button repeatedly until all indicator lamps in
the instrumentc luster go out.
XTry to start the engine again (Ypage 133). Avoid excessively long
and frequent attemptstos tart the engine as these will drain the
battery.
If the engine does not start after several attempts:
XConsult aqualified specialist workshop.
The engine does not
start. You cannot hear
the starter motor.The on-board voltage is too low because the battery is too weak or
discharged.
XJump-start the vehicle (Ypage 308).
If the engine does not start despite attempt stojump-start it:
XConsult aqualified specialist workshop.
The starter motor was exposed to athermal load that was too high.
XTry to start the engine again (Ypage 133).
If the engine still does not start:
XConsult aqualified specialist workshop.
The engine is not running
smoothly and is misfir-
ing.There is amalfunction in the engine electronics or in amechanical
componentoft he engine management system.
XOnly depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it.
XHave the cause rectified immediately at aqualified specialist work-
shop.
The coolant temperature
gauge shows avalue
above 248 ‡(120 †).The coolant level is too low. The coolant is too hot and the engine is no
longer being cooled sufficiently.
XStop as soon as possible and allow the engine and the coolant to
cool down.
XCheck the coolant level (Ypage 290). Observe the warning notes
as you do so and add coolant if necessary.
138Driving
Driving and parking

DYNAMIC SELECT switch
All vehicles (exceptMercedes-AMG
vehicles )
Use theDYNAMIC SELECT switch to chang ethe
drive program. Dependin gonthedrive program
selecte dthe followin gvehicle characteristics
will change:
Rth ed rive (engin eand transmissio nmanage-
ment)
Rth es uspensio n
Rthes teerin g
Rthea vailabilit yofthe ECOs tart/sto pfunction
Rthec limat econtrol :
-thec limat econtrol setting s
-ther earw indow defroster operation period
-thep erformanc eoftheseat heatin g
Each time you start th eenginew itht he Smart -
Key or th eStart/Sto pbutton, drive program Cis
activated. Fo rfurther information about startin g
th ee ngine, see (
Ypage 133).
XPush DYNAMI CSELEC Tswitch :forwar dor
bac kuntil th edesire ddrive program is selec -
ted.
The status icon of th eselecte ddrive program
is shown in th emultifunction display.
In addition ,the curren tdrive program setting s
are displaye dbriefly in th emultimedia syste m
display.
iIn af ew countries, th eECO start/sto pfunc-
tion is deactivated at th efactory due to th e
available fue lgrade. In this case, th eECO
start/sto pfunction is no tavailable in any
drive program, regardles softhedisplay in th e
multimedia syste mdisplay. Available drive programs:
I
IndividualIndividual setting s
S+Spor tPlusParticularly sport ydrivin g
characteristics
S Spor tSporty drivin gcharacteris -
tics
C ComfortComfortable and economi-
cal drivin gcharacteristics
EEconom yParticularly economical
drivingcharacteristics
Additional information on drive programs fo r
vehicles wit hautomatic transmissio n
(
Ypage 144)
You can also chang egear yoursel fusin gthe
steerin gwhee lpaddle shifters .For further infor-
mation on th emanual drive program
(
Ypage 146).
Mercedes-AMG vehicles
General information
Selec tthe drive program usin gthe DYNAMI C
SELECT switch .
Available drive programs:
RAC E
(S ‑MODEL )Driving characteristics suit -
able fo rthe racetrac k
S+Spor tPlusParticularly sport ydrivin g
characteristics
S Spor tSporty drivin gcharacteris -
tics
C ComfortComfortable and economi-
cal drivin gcharacteristics
IIndividualIndividual setting s
Dependingonthedrive program selecte dthe
followin gvehicle characteristics will change:
Rthed rive (engin emanagement)
Rthet ransmissio nmanagemen t
RESP®
Rthes uspensio n
Rthep osition of th eexhaus tflap
Rthes teerin g
DYNAMIC SELECT switch139
Driving an dpark ing
Z

Rthe availability of the ECO start/stopfun ction
Rthe driver assistance systems
Rthe availability of gliding mode
Furtheri nformation for automatic drive program
characteristics (
Ypage 144).
Additionally, in drive program Iyo uc an config-
ur et he respectiv evehicl echaracteristics using
the multimedia system. Yo ucan fin dinforma-
tio na bout thisint he Digita lOperator' sManual.
Each tim eyou start the engine with the Smart-
Key or the Start/Stop button, drive program Cis
activated .For furthe rinformation abou tstarting
the engine ,see (
Ypage 133).
Selecting the driv eprogram
XPress DYNAMIC SELECTs witch :forwards
or backwards unti lthe desired drive program
is selected.
The status ico nofthe selected drive program
is shown in the multifunctio ndisplay .
In addition, the current drive progra msettings
ar ed isplayed brieflyinthe multimedia system
display.
Yo uc an also change gear yourself using the
steering whee lpaddl eshifters. For furthe rinfor-
matio nont he manua ldrive program
(
Ypage 146).
Additional settings
:Positio nofthe exhaust fla p(Ypage 137)
;ECO start/sto pfunctio n(Ypage 135)
=ESP®(Ypage 67)
?Suspension (Ypage 172)
APermanent activatio nofmanualgears hifting
(Ypage 146)
When yo upress buttons :-A the corre-
sponding setting is selected .The DYNAMIC
SELECT switc hsetting is overwritten.
These setting swilla lsobem aintaine difyou
change with the DYNAMIC SELECTs witch in
drive program RACE(S-MODEL), S+,Sor C.
If yo uswitch to drive program I,a llstored char-
acteristics will be accepted .This is als othe case
if yo uhavep reviously presse dbuttons :-A.
Automati ctransmission
Important safety notes
GWARNING
If the engine spee disabove the idling speed
and yo uengag etransmission position Dor R,
the vehicl ecould pull away suddenly. There is
ar iskofana ccident.
When engaging transmission position Dor R,
always firmlyd epress the brake peda land do
not simultaneously accelerate.
GWARNING
The automatic transmission switches to neu-
tralp ositionNwhen yo uswitch off the engine.
The vehicl emayrollaway. There is ariskofa n
accident.
140Automati ctransmission
Driving an dparking

After switching off the engine,alway sswitch
to parking position P.Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
DIREC TSELECT lever
Overvie woftransmission positions
jPark positio nwithp arking lock
kReverse gear
iNeutral
hDrive
The DIRECT SELECTl ever is on the right of the
steering column.
The DIRECT SELECTl ever always returns to its
original position. The current transmission posi-
tion P,R, Nor Dappear sinthe transmission
positio ndisplay in the multifunctio ndisplay
(
Ypage 142).
Engagin gpark position P
!If the engine speed is too high or the vehicle
is moving, do not shift the automatic trans-
mission directl yfrom Dto R,f rom Rto Dor
directl ytoP.T he automatic transmission
could otherwise be damaged.
XPush the DIRECT SELECTl ever in the direction
of arrow P.
Engagingpark position Pautomatically
Park position Pis automaticall yengaged if:
Ryous witch off the engine using the SmartKey
and remove the SmartKey
Ryo us witch off the engine using the SmartKey
or using the Start/Stop button and open the
driver's door or front-passenger door
Rthe driver's door is opene dwhenthe vehicl eis
stationar yordriving at ver ylow speed and the
transmission is in position Dor R
Unde rcertain conditions, the automatic trans-
mission shifts automaticall ytotransmission
position Pif the HOLD functio norDISTRONIC
PLU Sisa ctivated.O bservethe informatio non
the HOLD functio n(
Ypage 170)and on
DISTRONICP LUS(Ypage 165).
Engagin grevers egearR
!Onlys hift the automatic transmission to R
when the vehicl eisstationary.
XIf the transmission is in position Dor N:p ush
the DIRECT SELECTl ever up past the first
point of resistance.
XIf the transmission is in position P:depress
the brake peda land push the DIRECT SELECT
lever up past the first point of resistance.
The ECO start/sto pfunctio nisn ot available
when revers egearise ngaged .Further informa-
tio nont he ECO start/sto pfunction
(
Ypage 135).
Shiftin gtoneutral N
GWARNING
If children ar eleftu nsupervised in the vehicle,
they could:
Ropen the doors ,thuse ndangering other
people or roa dusers.
Rget outa nd disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicl ein
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission outo f
park position P
RStartthe engine.
Automatict ransmission141
Driving andparking
Z

There isarisk of an accident and injury.
When leaving the vehicle, alwayst ake the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
XIf the transmission is in position Dor R:p ush
the DIRECT SELECT lever up or down to the
first point of resistance.
XIf the transmission is in position P:depress
the brake pedal and push the DIRECT SELECT
lever up or down to the first point of resist-
ance.
If you switch the engine off with the transmis-
sion in position Ror D,t he automatic transmis-
sion shifts to Nautomatically.
With the SmartKey: if you then open the driv-
er's door or the front-passenger door or remove
the SmartKey from the ignition, the automatic
transmission shifts to Pautomatically.
With the Start/Stop button: if you then open
the driver's door or the front-passenger door,
the automatic transmission shifts to Pautomat-
ically.
If you want the automatic transmission to
remain in neutral N,e .g. when having the vehicle
cleaned in an automatic car wash with atowing
system:
XVehicles with the Start-Stop button:
remove the Start-Stop button from the igni-
tion lock.
XInsert the SmartKey into the ignition lock.
XAll vehicles: switch the ignition on.
XDepress the brake pedal and keep it
depressed.
XShift to neutral N.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch off the ignition and leave the SmartKey
in the ignition lock.
Engaging drive position D
XIf the transmission is in position Ror N:p ush
the DIRECT SELECT lever down past the first
point of resistance.
XIf the transmission is in position P:depress
the brake pedal and push the DIRECT SELECT lever down past the first point of resistance.
Transmission position and drive pro-
gram display
The current transmission position and drive pro-
gram appear in the multifunction display.
:Status symbol drive program
;Transmission position
=Gear
The arrows in the transmission position display
show how and into which transmission positions
you can shift using the DIRECT SELECT lever.
If the transmission position display in the mul-
tifunction display is not working, you should pull
away carefully to check whether the desired
transmission position is engaged. For this pur-
pose, we recommend selectin gtransmission
position Dand drive program E(drive program C
in Mercedes-AMG vehicles) or S.
142Automatic transmission
Driving and parking

Transmission positions
BPark position
Thisprevents the vehicl efromr olling
away when stopped.
Onlys hift the transmission into posi-
tion Pwhen the vehicl eisstationary
(
Ypage 141). The parkin gloc k
shoul dnot be used as abrake when
parking. Alway sapply the electronic
parkin gbrake in additio ntothe park-
ing lock in order to secur ethe vehi-
cle.
Park position Pis automatically
engaged if:
Ryo us witch off the engine using the
SmartKeya nd remove the Smart-
Key
Ryo us witch off the engine using the
key or using the Start/Stop button
and open the driver's door or front-
passenge rdoor
Rthe driver's door is opene dwhen
the vehicl eisstationar yordriving
at ver ylow spee dand the trans-
mission is in position Dor R
If the vehicl eelectronics ar emalfunc-
tioning ,the transmission mayb e
locked in position P.H avet he vehicle
electronics checked immediatel yata
qualified specialis tworkshop.
CRevers egear
Onlys hift the transmission into posi-
tion Rwhen the vehicl eisstationary.
ANeutral
Do not shift the transmission to N
whil edriving. Otherwise, the auto-
matic transmission could be dam-
aged.
No powe ristransmitted fromt he
engine to the drive wheels.
Releasing the brake peda lwilla llow
yo utom ovet he vehicl efreely, e.g .to
push it or tow it.
If ESP
®is deactivated or faulty: shift
the transmission to position Nif the
vehicl eisind angerofs kidding,e.g.
on icy roads.
If yo uswitch the engine off with the
transmission in position Ror D,t he
automatic transmission shifts to N
automatically.
!Rolling in neutral Ncan damage
the drive train.
7Drive
The automatic transmission changes
gear automatically. All forward gears
ar ea vailable.
Driving tips
Changin ggear
The automatic transmission shifts to the indi-
vidua lgears automaticall ywhenitisint rans-
mission position D.T hisa utomatic gear shifting
behavio risdetermine dby:
Rthe selecte ddrive program
Rthe positio nofthe accelerator pedal
Rthe roa dspeed
Accelerator peda lposition
Your style of drivin ginfluences how the auto-
matic transmission shifts gear:
Rlittle throttle :early upshifts
Rmor ethrottle :lat eu pshifts
Double-clutc hfunction
When shifting down, the double-clutch function
is active regardless of the currentl yselected
drive program. The double-clutch function
Automati ctransmission143
Driving an dparking
Z

Problems with the transmission
ProblemPossible causes/consequences andMSolutions
The transmission has
problems shifting gear.The transmission is losing oil.
XHave the transmission checked ataqualified 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.
XStop the vehicle.
XShift the transmission to position P.
XSwitch off the engine.
XWait at least ten seconds before restarting the engine.
XShift the transmission to positionDor R.
If D is selected, the transmission shifts into secondgear; ifRis
selected, the transmission shifts into reverse gear.
XHave the transmission checked at aqualified specialist workshop
immediately.
Transfer case
This section is only valid for vehicles with 4-
wheel drive (4MATIC). Power is always trans-
mitted to both axles.
!Performancet ests may only be carried out
on a2 -axle dynamometer. The brake system
or transfer case could otherwise be damaged. Contact aqualified specialist workshop for a
performancet est.
!Since ESP®engages automatically, the igni-
tion must be switched off (the SmartKey or
Start/Stop button must be in position 0or 1)
if:
Rthe electric parking brake is being tested
on abrake dynamometer
Rthe vehicle is being towed with only one
axle raised (not permitted for vehicles with
4MATIC).
The brake system could otherwise be dam-
aged.
!Vehicles with 4MATIC must not be towed
with either the front or the rear axle raised, as doing so will damage the transmission.
Refueling
Important safety notes
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is arisk of fire and explo-
sion.
You must avoid fire, open flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before refueling.
GWARNING
Fuel is poisonous and hazardous to health.
There is arisk of injury.
You must make sure that fuel does not come into contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children.
If you or others come into contact with fuel,
observe the following:
RWash away fuel from skin immediately
using soap and water.
RIf fuel comes into contact with your eyes,
immediately rinse them thoroughly with
Refueling149
Driving and parking
Z

clean water. Seek medicalassistance with-
outd elay.
RIf fuelisswallowed, seekm edicalassis-
tance withou tdelay .Don ot induce vomit-
ing.
RImmediatel ychange outofc lothing which
hasc ome into contact with fuel.
GWARNING
Electrostati cbuildup can create sparks and
ignite fue lvapors. There is ariskoff ire and
explosion.
Alway stouch the vehicle bod ybefore opening
the fue lfille rflaport ouching the fue lpum p
nozzle .Any existing electrostatic buildupi s
thereby discharged.
Do not get into the vehicle agai nduring the refu-
eling process .Otherwise, electrostatic charge
could buil dupagain.
!Do not us edieseltor efuel vehicle switha
gasoline engine. Do not switch on the ignition
if yo uaccidentall yrefuel with the wrong fuel.
Otherwise, the fue lwille nter the fue lsys tem.
Even small amounts of the wrong fue lcould
result in damag etothe fue lsystem and the
engine. Notify aquali fied specialist workshop
and have the fue ltank and fue llin es drained
completely.
!Overfilling the fue ltank could damag ethe
fue lsystem.
!Take care not to spill any fue lonpainted
surfaces. You could otherwise damag ethe
paintwork.
!Use afilter whe nrefueling from afuelcan.
Otherwise, the fue llin es and/or injection sys-
tem could be blocked by particles from the
fue lcan.
If yo uoverfil lthe fue ltank, fue lcould spra yout
whe nthe fue lpum pnozzle is removed.
For further information on fue land fue lquali ty
(
Ypage 344).
Refueling
General information
Paya ttention to the important safety notes
(Ypage 149).
If yo uunlock/lock the vehicle from the outside,
the fue lfille rflapa lsou nlocks/locks.
The position of the fue lfille rcap is displayed in
the instrument cluster 8.The arrow next to
the filling pump indicates the sid eofthe vehicle.
Opening the fuel fille rflap
:To ope nthe fue lfille rflap
;To insert the fue lfille rcap
=Tirep ressure table
?Instruction label for fue ltyp etober efueled
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, in vehicle swithK EYLESS-G Ostart-function
or KEYLESS ‑GO
XOpenthe driver' sdoor.
The on-board electronics now have status 0.
Thi sist he sam easthe SmartKey having been
removed.
XPress the fue lfille rflapint he direction of
arrow :.
The fue lfille rflaps wings up.
XTurn the fue lfille rcap counterclockwise and
remove it.
XInser tthe fue lfille rcap into the holder on the
inside of fue lfille rflap ;.
XCompletel yinsert the fille rneck of the fuel
pump nozzle into the tank, hookinp lace and
refuel.
XOnly fil lthe tank untilt he pump nozzle
switches off.
150Refueling
Drivin gand parking