battery MERCEDES-BENZ C-Class COUPE 2017 CL205 Owner's Guide

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

Problems with fuel and the fuel tank
ProblemPossible causes/consequences andMSolutions
Fuel is leaking from the
vehicle.GWARNING
The fuel line or the fuel tank is faulty.
Risk of explosion or fire.
XApply the electric parking brake.
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, in vehicles with KEYLESS-GO start-function or KEYLESS ‑GO
XOpen the driver's door.
The on-board electronics now have status0.This is the same as the
SmartKey having been removed.
XDo not restart the engine under any circumstances.
XConsult aqualified specialist workshop.
The fuel filler flap cannot
be opened.The fuel filler flap is not unlocked.
XUnlock the vehicle (Ypage 74).
The SmartKey battery is discharged or nearly discharged.
XUnlock the vehicle using the mechanical key (Ypage 76).
The fuel filler flap is unlocked, but the opening mechanism is jammed.
XConsult aqualified specialist workshop.
Parking
Important safety notes
GWARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system or exhaust
gas flow. There is arisk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the vehi-
cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields.
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is arisk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!Always secure the vehicle correctly against
rolling away.O therwise, the vehicle or its driv-
etrain could be damaged.
152Parking
Driving and parking

If yourseat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
Rthe driver's door is closed.
Ryou have shifted out of transmission position
P or you have previously driven faster than
2m ph (3 km/h).
Ensure that you do not depresst he accelerator
pedalu nintentionally .Otherwise the parking
brake wil lbereleased and the vehicle wil lstart
to move.
Emergency braking
The vehicle can also be braked during an emer- gency by using the electric parking brake.
XWhiled riving, push handle :of the electric
parking brake (Ypage 154).
The vehicle is braked as long as you keep
handle :of the electric parking brake
depressed. The longer electric parking brake
handle :is depressed, the greater the brak-
ing force.
During braking:
Raw arning tone sounds
Rthe Please Release Parking Brakemes-
sage appears
Rthe red F(USA only) or !(Canada
only) indicator lamp in the instrument cluster
flashes
When the vehicle has been braked to astand-
still, the electric parking brake is engaged.
Parking the vehicle for alongp eriod
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked for longer than six
weeks, the vehicle may suffer damage as a
resultoflack of use.
XVisit aqualifieds pecialist workshop and seek
advice.
iYou can obtain information abou ttrickle
chargers from aqualifieds pecialist work-
shop.
Drivin gtips
General driving tips
Important safety notes
GWARNING
If you switch off the ignition whil edriving,
safety-relevant functions are only available
with limitations, or not at all .This could affect,
for example ,the powers teering and the brake
boosting effect. You wil lrequire considerably
more effort to steer and brake. There is arisk
of an accident.
Do not switch off the ignition whil edriving.
GWARNING
If you operate mobilec ommunication equip-
ment whiled riving, you willbed istracted from
traffic conditions. You could also lose control
of the vehicle.T here isarisk of an accident.
Only operate this equipment when the vehicle
is stationary.
Observe the legalr equirements for the country
in which you are driving. Some jurisdictions pro-
hibitt he driver from using amobilep hone while
driving avehicle.
If you make acall whiled riving, always use
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pul lover to asafe location and stop
before operating the telephone.
Bear in mind that at aspeed of only 30 mph
(approximatel y50km/h), the vehicle covers a
distance of 44 ft (approximatel y14m)p er sec-
ond.
Drive sensibly –save fuel
Observe the following tips to save fuel:
XThe tires should always be inflated to the rec-
ommended tire pressure.
XRemove unnecessary loads.
XRemove roof racksw hen they are not needed.
XWarm up the engineatlow engin espeeds.
XAvoid frequenta cceleration or braking.
XHave all maintenanc ework carried out as
indicated by the servicei ntervals in the Main-
Driving tips155
Driving and parking
Z

If there is no vehicle in front, DISTRONIC PLUS
operates in the same way as cruise control.
If DISTRONIC PLUS detects that the vehicle in
front has slowed down, it brakes yourvehicle.I n
this way ,the distance you have selected is main-
tained.
If DISTRONIC PLUS detects afaster-moving
vehicle in front, it increases the driving speed.
However, the vehicle is only accelerated up to
the speed you have stored.
Selecting the drive program
DISTRONIC PLUS supports asporty driving style
when you have selected the Sor S+ driving pro-
gram (
Ypage 144). Acceleration behind the
vehicle in front or to the set speed is then notice-
abl ym ore dynamic. If you have selected the Cor
E driving program, the vehicle accelerates more
gently. This setting is recommended in stop-
and-start traffic.
Changing lanes
If you change to the passing lane, DISTRONIC
PLUS supports you when:
Ryou are driving faster than 45 mph (70 km/h)
Ryou switch on the appropriate turn signal
RDISTRONIC PLUS does not detect adanger of
collision
If these conditions are fulfilled,y ourv ehicle is
accelerated. Acceleration wil lbeinterrupted if
changing lanes takes too long or if the distance
betwee nyourv ehicle and the vehicle in front
becomes too small.
iWhen you change lanes, DISTRONIC PLUS
monitors the left lane on left-hand-drive vehi-
cles or the right lane on right-hand-drive vehi-
cles.
Stopping
GWARNING
When leaving the vehicle,e ven if it is braked
only by DISTRONIC PLUS, it could roll awa yif:
Rthere is amalfunction in the system or in
the voltage supply.
RDISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by avehi-
cle occupant or from outsid ethe vehicle.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected.
Rthe accelerator pedalh as been depressed,
e.g. by avehicle occupant.
There is arisk of an accident.
If you wish to exit the vehicle,a lways turn off
DISTRONIC PLUS and secure the vehicle
against rolling away.
For further information on deactivating
DISTRONIC PLUS (
Ypage 167).
If DISTRONIC PLUS detects that the vehicle in
front is stopping, it brakes you rvehicle until it is
stationary.
Once you rvehicle is stationary,itr emains sta-
tionary and you do not need to depresst he
brake.
iAfter atime, the electric parking brake
secures the vehicle and relieves the service
brake.
iDepending on the specifiedm inimum dis-
tance, you rvehicle wil lcome to astandstill at
as ufficient distance behind the vehicle in
front. The specifiedm inimum distance is set
using the control on the cruise control lever.
When DISTRONIC PLUS is activated, the trans-
missioniss hifted automatically to position Pif:
Rthe driver's seat belt is not fastened and the
driver's door is open.
Rthe engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function.
The electric parking brake secures the vehicle
automatically if DISTRONIC PLUS is activated
when the vehicle is stationary and:
Ras ystem malfunction occurs.
Rthe powers upply is not sufficient.
If am alfunction occurs, the transmission may
also shift into position Pautomatically.
Setting aspeed
XPress the cruise control lever up :for a
highers peed or down ;for alowers peed.
XTo adjust the set speed in 1mph incre-
ments (1 km/h increments): brieflypress
Driving systems165
Driving and parking
Z

Important safety notes
GWARNING
When leaving th evehicle, it can still rol laway
despit ebein gbraked by th eHOLDfunction if:
Rthere is amalfunction in th esystem or in
th ev oltag esupply.
RtheH OLDfunction has been deactivated by
pressin gthe accelerato rpedal or th ebrak e
pedal ,e.g.bya vehicleoccupant .
Rthee lectrical system in th eenginec om -
partment, th ebattery or th efuses have
been tampered with.
Rth eb attery is disconnected
Ther eisar iskofana ccident.
If you wish to exit th evehicle, always tur noff
th eH OLDf unction and secure th evehicl e
against rollin gaway.
!If DISTRONI CPLUSort heHOLD function is
activated, th evehicl ebrakes automatically in
certain situations.
To preven tdamag etothevehicle, deactivat e
DISTRONI CPLUSa nd th eHOLDf unction in
th ef ollowin gorother similar situations:
Rwhen towin gthe vehicl e
Rin thecar wash
Deactivating th eHOLDf unction (
Ypage 170).
Activation conditions
You can activat ethe HOLD function if all of th e
followin gconditi onsa re fulfilled :
Rthev ehicl eiss tationary.
Rth ee ngineisr unnin gorifith as been auto -
matically switched off by th eECO start/sto p
function .
Rthed river' sdoor is closed or your seat belt is
fastened.
Rth ee lectric parking brak eisreleased.
Rthet ransmission is in position D,Ror N.
RDISTRONI CPLUSisd eactivated.
Activating th eHOLD function
XMak esuret hatthe activation condition sare
met .
XDepress th ebrak epedal .
XQuickly depress th ebrak epedal further
until :appear sinthemultifunction display.
The HOLD function is activated. You can
release th ebrak epedal .
iIf depressing th ebrak epedal th efirst time
does no tactivat ethe HOLD function ,wait
briefly and then tr yagain .
Deactivating th eHOLD function
The HOLD function is deactivated automatically
if:
Ryou accelerate and th etransmission is in
position Dor R.
Rth et ransmission is in position P.
Ryou depress thebrak epedal again wit hacer-
tai na moun tofpressur euntil :disappear s
from th emultifunction display.
Ryou secure th evehicl eusin gthe electric park -
ing brake.
Ryou activat eDISTR ONICPLUS.
iAfte ratime, th eelectric parking brak e
secures th evehicl eand relieves th eservic e
brake.
When th eHOLDfunction is activated, th etrans -
mission is shifte dautomatically to position Pif:
Rth ed river' sseat belt is no tfastene dand th e
driver' sdoor is open .
Rthee ngineiss witched off ,unless it is auto -
matically switched off by th eECO start/sto p
function .
170Driving systems
Driving and parking

Rthatareparallel to the direction of travel and
at leas t39.5 in (1.0 m)longer than your vehi-
cle
Rthat are at right angles to the direction of
travel and at least 39.5i n(1.0m )wider than
your vehicle
iNotet hat Activ eParking Assist cannot
measure the size of aparking space if it is at
right angles to the direction of travel. You will
need to judge whether your vehicle will fit into the parking space.
When drivingats peeds below 19 mph
(3 0k m/ h),y ou will see the parking symbol as a
status indicator in the instrumentc luster. When
ap arking space has been detected, an arrow
towards the right or the left also appears. By
default,A ctiveP arking Assist only displays park-
ing spaces on the front-passenge rside. Parking
spaces on the driver's side are displayed as
soon as the turn signal on the driver's side is
activated. When parking on the driver's side,
this must remain switched on until you acknowl-
edge the use of Activ eParking Assist by press-
ing the abutton on the multifunction steer-
ing wheel. The system automatically determines
whether the parking space is parallel or at right
angles to the direction of travel.
Ap arking space is displayed while you are driv-
ing past it, and until you are approximately 50 ft (1 5m)a way fromi t.
Parking
GWARNING
If you leave the vehicle when it is only being
braked by Activ eParking Assist it could roll
away if:
Rthere is amalfunction in the system or in
the voltage supply.
Rthe electrical system in the engin ecom-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected.
Rthe accelerator pedal has been depressed,
e.g. by avehicle occupant.
There is arisk of an accident.
Before leavingt he vehicle, always secur eit
against rollinga way.
iWhen PARKTRONIC detect sobstacles,
Activ eParking Assist brakes automatically
duringt he parking process. You are respon-
sible for braking in good time.
XStop the vehicle when the parking space sym- bol shows the desiredp arking space in the
instrumentc luster.
XShiftthe transmission to position R.
The Start
ParkAssist?Yes:OKNo:%
message appears in the multifunction display.
XTo cancel th eprocedure: press the %
button on the multifunction steeringw heel or
pull away.
or
XTo park using Active Parking Assist: press
the a button on the multifunction steering
wheel.
The Park Assist Active Accelerate
and BrakeObserve Surroundingsmes-
sage appears in the multifunction display.
XLet go of the multifunction steeringw heel.
XBackupt he vehicle, being ready to brakeata ll
times. When backing up, drive at aspeed
below approximately 6mph (10 km/h). Oth-
erwise Activ eParking Assist will be canceled.
Activ eParking Assist brakes the vehicle to a
standstill when the vehicle approaches the
rear border of the parking space.
Maneuveringm ay be requiredint ightparking
spaces.
The Park
AssistActiveSelect DObserveSurroundingsmessage appears in the multi-
function display.
XShif tthe transmission to position Dwhile the
vehicle is stationary.
Activ eParking Assist immediately steers in
the other direction.
The Park Assist Active Accelerate
and BrakeObserve Surroundingsmes-
sage appears in the multifunction display.
iYou will achiev ethe best resultsbyw aiting
for the steeringp rocedure to complete before
pulling away.
XDrive forwards and be ready to brakeata ll
times.
Activ eParking Assist brakes the vehicle to a
standstill when the vehicle approaches the
front border of the parking space.
Maneuveringm ay be requiredint ightparking
spaces.
Driving systems179
Driving and parking
Z

XPress theòbutton on the steerin gwheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the Tripmenu.
XPress9or: to select the display with
approximate range :and currentf uel con-
sumption ;.
Approximate range :that can be covered is
calculated accordingtoy our currentdriving
style and the amount of fuel in the tank .If
there is only asmall amount of fuel left in the
fuel tank ,avehicle being refueled C
appears instead of approximate range :.
Recuperation display =shows you if energy
has been recuperated from the kinetic energy in overrun mode and saved in the battery.
Recuperation display =depends on the
engine installed and is therefore not available
in all vehicles.
ECO display
The ECO display is not availableinM ercedes-
AMG vehicles.
XPress òon the steerin gwheel to open the
menu list.
XPress the :or9 button on the steering
wheel to select the Tripmenu.
XConfirm by pressing aon the steering
wheel.
XPress the :or9 button to select ECO
display.
If the ignition remains switched off for longer
than four hours, the ECO display will be auto-
matically reset.
For more information on the ECO display, see
(
Ypage 156).
Trip computer "From Start" or "From
Reset"
:Distance
;Drivin gtime
=Average speed
?Average fuel consumption
XPress the òbutton on the steerin gwheel
to open the menu list.
XPress :or9 on the steerin gwheel to
select the Tripmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select From Startor
From Reset.
The values in the From
Startsubmenu are cal-
culated from the start of ajourney, while the
values in the From Reset
submenu are calcu-
lated from the last time the submenu was reset
(
Ypage 206).
In the following cases the trip computer is auto- matically reset From Start
:
Rthe ignition has been switched off for more
than four hours.
R999 hours have been exceeded.
R9,999 miles have been exceeded.
When 9,999 hours or 99,999m iles have been
exceeded, the trip computer is automatically
reset From Reset
.
Digital speedometer
XPress òon the steerin gwheel to open the
menu list.
XPress :or9 on the steerin gwheel to
select the Tripmenu.
Menus and submenus205
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up. The red F(USAonly)
or ! (Canada only) indicator lamp flashes for about te nseconds
after th eelectric parking brak ehas been applie dorreleased. It then
goe sout or remain slit.
The electric parking brak eismalfunctioning .
XSwitchoff th eignition and tur nitbacko n.
XApply th eelectric parking brake.
If it is no tpossibl etoengage th eelectric parking brake:
XShift th etransmission to position P.
XVisitaqualified specialist workshop .
If it is no tpossibl etorelease th eelectric parking brak emanually:
XReleas ethe electric parking brak eautomatically (Ypage 153).
If th eelectric parking brak estill canno tbereleased:
XConsult aqualified specialist workshop .
The yellow!warning lamp lights up. If you manually apply or
release th eelectric parking brake, th ered F (USAonly) or !
(Canada only) indicator lamp flashes .
The electric parking brak eismalfunctioning .Itisnotpossibl etoapply
th ee lectric parking brak emanually.
XShift th eselector lever to P,astheelectric parking brak eisnot
applie dautomatically.
XVisit aqualified specialist workshop .
If it is no tpossibl etorelease th eelectric parking brak emanually:
XReleas ethe electric parking brak eautomatically (Ypage 153).
F(USA
only)
!(C anada
only)
Parkin gBrake Inop‐
erativ e
The yellow !warning lamp lights up. The red F(USAonly)
or ! (Canada only) indicator lamp flashes for about te nseconds
after th eelectric parking brak ehas been applie dorreleased. It then
goe sout or remain slit.
The electric parking brak eismalfunctioning ,e.g.b ecause of over-
voltag eorundervoltage.
XRemove th ecaus efor th eovervoltage or undervoltage, e.g. by
charging th ebattery or restarting th eengine.
XEngage or release th eelectric parking brake.
If it remain simpossible to apply or release th eelectric parking brake:
XSwitc hoff th eignition and tur nitbacko n.
XEngage or release th eelectric parking brake.
If th eelectric parking brak estill canno tbereleased:
XConsult aqualified specialist workshop .
If th eelectric parking brak estill canno tbeapplied:
XVisitaqualified specialist workshop .
224Display messages
On-boardcomputer andd isplays

Display messagesPossible causes/consequences andMSolutions
?
CoolantToo HotStopVehicl eTurnEngine Off
The coolan tistoohot .
Aw arning tone also sounds.
GWARNIN G
Do no tdrive when your engin eisoverheated. This can caus esom e
fluids whic hmay hav eleaked int othe engin ecom partmen ttocatch
fire.
Steam from th eoverheate denginec an also caus eserious burn swhich
can occur jus tbyopening th ehood.
There is ariskofi njury.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 152).
XWait until th eengineh as cooled down .
XMakesuret hatthe air supply to th eenginer adiato risnotblocked,
e.g. by snow, slus horice.
XDo no tstart th eenginea gain until th edisplay message goe sout and
th ec oolan ttem perature is belo w248‡(120† ). Otherwise ,the
engin ecould be damaged.
XPay attention to th ecoolan ttem perature display.
If th etemperatur eincreases again:
XVisit aqualified specialist workshop immediately.
Under normal operating condition sand wit hthe specified coolan t
level, th ecoolan ttem perature may ris eto2 48 ‡(120† ).
#
See Operator' sMan‐ual
The battery is no tbein gcharged.
Aw arning tone also sounds.
Possibl ecauses are:
Rad efective alternato r
Ratornp oly-V-belt
Ram alfunction in th eelectronics
!Do no tcontinue driving. The engin ecould otherwise overheat.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 152).
XConsult aqualified specialist workshop .
Display messages233
On-boardc omputer andd isplays
Z

Display messagesPossible causes/consequences andMSolutions
#
StopVehicl eSeeOperator' sManual
The battery is no longer bein gcharged and th ebattery charg elevel is
to ol ow.
Aw arning tone also sounds.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 152).
XObserv ethe instruction sinthe# See Operator' sManualdisplay message .
XConsultaqualified specialist workshop .
#
StopVehicl eLeaveEngine Runnin g
The battery charg elevel is to olow.
XPull ove rand stop th evehicl esafely as soo naspossible, payin g
attention to roa dand traffic conditions. Do no tcontinue driving
under any circumstances.
XLeav ethe engin erunning.
XWait until th edisplay message disappear sbefore pullin gaway.
#
Start Engine SeeOperator' sManual
The engin eisswitched off and th ebattery charg elevel is to olow.
XSwitc hoff electrical consumer sthaty ou do no tneed, suc hasthe
rear window defroste rand interior lighting .
XLeavethe engin erunnin gfor afew minute sordrivealon gd istance.
The battery is bein gcharged.
4
CheckEngineOilAtNex tRefueling
The engin eoil level has dropped to th eminimum level.
Aw arning tone also sounds.
!Avoid lon gjou rneys wit htoo littl eengineo il. The engin ewill oth-
erwise be damaged.
XChec kthe oil level when next refueling, at th elatest (Ypage 289).
XIf necessary, add engin eoil(Ypage 289).
If th eengin eoil need stoppin gupm oreo ften:
XContac taqualified specialist workshop and hav ethe engin e
checked.
Information on approve dengineo ils can be obtained from aqualified
specialist workshop or on th eInterne tath ttp:// bevo.mercedes -
benz.com.
234Display messages
On-boardc omputer andd isplays