2019 MERCEDES-BENZ CLA COUPE Owner's Manual

X
Have thetire sealant bottle andthefiller hose
repl aced assoon aspos sibleat aqu alifi ed
spe cialist wor kshop .
X Have thetire sealant bottle replaced every
fou rye ars ataqu alifi ed spe cialist wor kshop . Battery
(vehicle) Importan
tsafe tynotes
Speci altool sand expe rtknowl edgeare requ ired
whe nwor king onthe battery, e.g.remov aland
insta llatio n.You shou ldthere forehaveallwor k
invol ving thebattery carriedout ataqu alifi ed
spe cialist wor kshop . G
WARNI
NG
Work carriedout incorre ctlyonthe battery
can lead,for exam ple,to ashor tcircu itand
thus damag ethe vehi cleelectronics. Thiscan
lea dto functio nrestri ctions apply ing to
safe ty-rel evantsys tems, e.g.thelighting sys-
tem, theABS (anti-lock braking system) orthe
ESP ®
(Ele ctronic Stability Prog ram) .The oper-
ating safetyof your vehi clemay berestri cted.
You couldlos econtrol ofthe vehi cle, for
exam ple:
R whe nbra king
R in the event ofabrup tsteeri ngmane uvers
and/o rwhe nthe vehi cle'sspe edisnot
ad apted tothe roadcondi tions
The reisarisk ofan acci dent.
In the event ofashor tcircu itor asimi larinci-
dent, contact aqu alifi ed spe cialist wor kshop
imme diately .Do not drive any furthe r.You
shou ldhav eal lwor kinvol vingthebattery car-
rie dout ataqu alifi ed spe cialist wor kshop .
For furthe rinform ationab out ABS andESP®
,
see (Ypage 61)and (Ypage 64). G
WARNI
NG
Electros taticbuild-up canleadto the crea tion
of spa rks, whichcoul digni tethe highly expl o-
sive gasesofaba ttery. Thereisarisk ofan
expl osion. Before
handling the battery, touch thevehi cle
bod yto remov eany existing electrostati c
bu ild-up .
The highly flammab legas mixtu reforms when
charg ingthe battery aswel las whe njump -start-
ing.
Alwa ysmake surethat neithe ryo unor thebat-
tery isele ctrostati callycharg ed.Abu ild-up of
ele ctrostati ccharg ecan becau sed,for exam -
ple :
R by wea ring clothi ngmad efrom synthe tic
fib ers
R du eto fricti onbetw eenclothi ngand seats
R ifyo upu sh orpullthe battery acrossthe car-
pet orother synthe ticmater ials
R ifyo urub thebattery with acloth G
WARNI
NG
Duri ngthe charg ingproce ss,aba ttery produ-
ces hydroge ngas .If ashor tcircu itoccur sor
spa rks are crea ted, thehydroge ngas can
igni te.The reisarisk ofan expl osion.
R Make surethat thepositive termina lof a
connected battery doesnot come intocon-
tact with vehi cleparts.
R Neve rpla cemetal objects ortool son aba t-
tery .
R Itis imp ortant thatyouobs erve thedescri-
bed orde rof the battery termina lswhe n
connecting anddisconnecting aba ttery.
R Whe njump -starti ng,make surethat the
ba ttery poleswith ide ntical polarityare
connected .
R Itis pa rticu larly imp ortant toobs erve the
des crib edorde rwhe nconnecting anddis-
connecting thejump ercabl es.
R Neve rconnect ordis connect thebattery
termina lswhi lethe engi neisrunni ng. G
WARNI
NG
Battery acidis cau stic. Thereisarisk ofinjury .
Avoid contact with skin, eyes orclothi ng.Do
not inha leany battery gases.Donot leanover
the battery. Keepchildren away from batter-
ies .Wa shawaybattery acidimme diately with Battery
(vehicle)
279Breakdow nassi stanc e
Z

plent
yof clean water andseek medical atten-
tion . H
Environm
entalnote Batt
eries contain pollutant s.
It is illegal todispose ofthem
with thehousehold rubbish.
They must becollect edsep-
arately anddisposed ofinan
envir onmen tallyrespon sible
recyclin gsystem. Dispose
ofbatte riesinan
envir onmen tallyrespon sible
mann er.Take discharged
batte riestoaqualified spe-
cialist worksh oportoacol-
lection pointforused batter-
ies.
! Have
thebatte ryregularly checkedata
qualified specialist workshop.
Comply withtheservic eint ervals inthe Main-
ten ance Booklet,orcon tact aqualified spe-
cialist worksh opfor more information .
! You
should haveallwork involv ingthe bat-
tery carried outataqualified specialist work-
shop. Inthe exception alcase thatitis nec es-
sary foryou todiscon nectthe batte ryyour-
self, make surethat:
R switch offthe engin eand remov ethe
Smart Key.Onvehicles withKEYL ESS-GO,
make surethattheignit ionisswitch edoff.
Check thatallthe indicat orlamps inthe
inst rument clusterareoff. Other wise,elec-
tron iccompon ents,such asthe altern ator,
may bedamaged.
R you first remov ethe negat iveterm inal
clamp andthen thepositive terminal
clamp. Neverswaptheterm inalclamps.
Other wise, thevehicle's electronic system
may bedamaged.
R in vehicles withautomatic transmission ,
the tran smission islock edinposition 005D
after thebatte ryisdiscon nected. Thevehi-
cle issecured againstrollingaway.Youcan
then nolonger movethevehicle.
The batte ryand thecover ofthe positive ter-
minal clamp mustbeinst alled securely during
operation . Comply
withsafety precaution sand take pro-
tec tive measures whenhandling batteries. Risk
ofexplosion . Fire,
open flames andsmok ingare
prohibited whenhandling thebat-
tery. Avoid creatingsparks. Batt
eryacid iscaustic .Avoid contact
with skin,eyes orclot hing.
Wear suitable protective clot hing,
especially gloves,apronandface-
guard.
Rinse anyacid spills immediately
with clear water. Contac ta physician
if nec essary. Wear
eyeprote ction. Keep
children away. Observe
thisOperator 'sManual.
For safety reasons ,Mercedes -Benzrecom -
mends thatyouonly usebatte rieswhich have
been testedand approved foryour vehicle by
Mercedes -Benz.These batteriesprovide
incr eased impact protection topreven tvehicle
occ upants fromsufferin gacid burns should the
batte rybe damaged inthe event ofan acciden t.
In order forthe batte ryto achieve themaximum
possible servicelife, itmust always besuffi-
cient lycharged.
Like other batteries,thevehicle batterymay
discharge overtime ifyou donot use thevehicle.
In this case, havethebatte rydiscon nected ata
qualified specialist workshop.You canalso
charge thebatte rywith acharger recommended
by Mercedes -Benz.Contac ta qualified special-
ist worksh opfor furth erinfor mation .
Have thebatte rycon dition ofcharge checked
more frequent lyifyou usethevehicle mainlyfor
short tripsorifyou leave itstan ding idlefora
lengt hyperiod. Consult aqualified specialist
worksh opifyou wish toleave yourvehicle
parked foralong period oftime. 280
Ba
ttery (vehicle)Breakd ownassista nce

Only
replace abattery withabattery thathas
been recommended byMercedes-Benz .
Remove theSmartKey ifyou park thevehicle
and donot require anyelectrical consumers.
The vehicle willthen usevery little energy, thus
conserving batterypower.
If the power supply hasbeen interrupted, e.g.if
you reconnec tthe battery, youwillhave to:
R set the clock using themultimedia system
(see theDigital Operator's Manual)
R reset thefunction forfolding theexterior mir-
rors in/out automaticall y,by folding themir-
rors outonce (Ypage 98) Charging
thebatter y G
WARNING
During charging andjump-startin g,explosive
gases canescape fromthebattery. Thereisa
risk ofan explosion.
Particularl yavoid fire,open flames, creating
sparks andsmoking. Ensurethereissufficient
ventilation whilecharging andjump-startin g.
Do not lean over abattery. G
WARNING
Battery acidiscaustic. Thereisarisk ofinjury.
Avoid contactwith skin, eyesorclothing. Do
not inhale anybattery gases.Donot lean over
the battery. Keepchildren awayfrom batter-
ies. Wash awaybattery acidimmediately with
plenty ofclean water andseek medical atten-
tion. G
WARNING
A discharged batterycanfreeze attempera-
tures below freezing point.Whenjump-start-
ing the vehicle orcharging thebattery, gases
can escape fromthebattery. Thereisarisk of
an explosion.
Allow thefrozen battery tothaw outbefore
charging itor jump-startin g.
! Only
usebattery chargers withamaximum
charging voltageof14.8 V.
! Only
charge thebattery usingthejump-
starting connectionpoint. The
jump-startin gconnec tionpoint isin the
engine compartment (Ypage 282).
X Open thehood.
X Connect thebattery charger tothe positive
terminal andground pointinthe same order
as when connec tingthedonor battery inthe
jump-startin gprocedure (Ypage 282).
If the <004C00510047004C004600440057005200550012005A004400550051004C0051
004A[ lampsdonot light upin
the instrument clusteratlow temperatures, itis
very likely thatthedischarged batteryhasfro-
zen. Inthis case youmay neither jump-start the
vehicle norcharge thebattery. Theservice lifeof
a thawed-out batterymaybeshorter. Thestart-
ing characteristics canbeimpaired ,particularl y
at low temperatures. Havethethawed-out bat-
tery checked ataqual ified speciali stworkshop.
Only charge theinstalled batterywithabattery
charger whichhasbeen tested andapproved by
Mercedes-Benz .A battery charger unitspeciall y
adap tedforMercedes-Benz vehiclesandtested
and approved byMercedes-Benz isavail able as
an accessory. Itpermits thecharging ofthe bat-
tery inits installed position. Contactanauthor-
ized Mercedes-Benz Centerforfurther informa-
tion andavail ability. Read thebattery charger's
operating instructionsbefore charging thebat-
tery. Replacing
the12Vbatter y
Observe thenotes onthe 12Vbattery
(Y page 279).
Mercedes-Benz recommendsthatyouhave the
12 Vbattery replaced ataqual ified speciali st
workshop, e.g.atan authorized Mercedes-Benz
Center.
If you want toreplace thebattery yourself,
observe thefollowi ngnotes:
R Alway sreplace adefective batterywithabat-
tery which meets thespecific requirements of
the vehicle.
The vehicle isequip pedwith abattery using
AGM (absorbe ntglass mat)technology ora
battery usingEFB(enhanced floodedbattery)
technology. Fullvehicle functionality isguar-
anteed onlywith anAGM orEFB battery. If
replacement isnecessary, alwaysuse thebat-
tery technology originallyinstalled. Switching
between thebattery technologies isnot per-
mitted. Forsafety reasons, Mercedes-Benz
recommends thatyouonly usebatteries Bat
tery (vehic le)
281Breakdown assistance Z

which
havebeen tested and approv edfor your
vehic leby Merc edes- Benz.
R Use detachable partssuch asbreat herhose s,
angle dcon nectingpiece sor ter min alcov ers
fro mthebatt erywhich isto be replac ed.
R Make surethat theven those isalways con-
nec ted totheorigi nalopen ingonthebatt ery
side. R
Inst all exis tingor supplied cellcaps ;oth er-
wise gases orbatt eryacid could escape.
R Make surethat thedet achabl epart sare con-
nec ted again inthesame way. Jum
p-sta rting
For thejum p-startingproc edure, useonly thejum p-startingcon nectionpoin t,con sisting ofapos-
itiv eter min aland agroun dpoin t,in theeng inecom partmen t. G
WAR
NING
Bat teryacid iscaust ic.Ther eis arisk ofinjury.
Av oid contactwith skin, eyes orclot hing.Do not inhale any batterygases. Donot lean over the
batt ery. Keep children away frombatt eries .Wash awaybatteryacid imme diatelywith plentyof
clean water andseek medic alatt ent ion. G
WAR
NING
Dur ing char ging andjump-starting,exp losiv egases canescape fromthebatt ery. Ther eis arisk
of an exp losion .
Part icular lyavoid fire,open flames,creatin gspark sand smok ing.Ensure there issuff icien tven -
tilat ionwhile charging andjump-starting.Do not lean over abatt ery. G
WAR
NING
Dur ingthechar ging process, abatt eryproduc eshydrog engas. Ifashor tcir cuit occurs orspark s
are create d,thehydrog engas can ignite.Ther eis arisk ofan exp losion .
R Make surethat theposit ivetermin alof acon nected batt erydoes notcom eint ocon tactwith
vehic lepart s.
R Nev erplace metalobj ect sor too lson abatt ery.
R Itis impor tantth at you obser vethedesc ribed orderof thebatt erytermin alswhen connecting
and disconnecting abatt ery.
R When jump-starting,mak esure that thebatt erypoles withidenticalpolarit yare connected.
R Itis part icular lyimpor tantto obser vethedesc ribed orderwhen connectingand disconnecting
th ejum per cables .
R Nev ercon nector disc onnect thebatt erytermin alswhile theeng ineisrun ning. G
WAR
NING
A disc harge dbatt erycan freeze attem perat uresbelow freezin gpoin t.When jump-startingth e
vehic leor char ging thebatt ery, gases canescape fromthebatt ery. Ther eis arisk ofan exp losion .
Allo wthefro zen batterytothaw out befo rechar ging itor jum p-starting.
! Av
oid repeat edand lengthyst art ing attempt s.Ot herwis e,thecat alytic converter could be
damaged bythenon -combus tedfuel. 282
Jum
p-sta rtingBr eakd ownassis tance

If
the indicator/wa rninglampsdo not light upinthe instrument clusteratlow temperature s,itis very
likely thatthedischa rgedbattery hasfrozen. Inthis case youmay neither jump-start thevehicle nor
charge thebattery. Letthe battery thawfirst.Theservice lifeofathawed -outbattery maybeshorter.
The starting characteristics canbeimpa ired,particul arlyatlow temperature s.Have thethawed -out
battery checked ataqua lifiedspecia listworkshop.
Do not start thevehicle usingarapi dcharging device.Ifyou rvehicle 'sbattery isdischa rged,the
engine canbejump-started fromanother vehicleorfrom asecond batteryusingjumper cables.
Observe thefollow ingpoints:
R The battery isnot accessib lein all vehicle s.Ifthe other vehicle 'sbattery isnot accessib le,jump-
start thevehicle usingasecond batteryorajump-starting device.
R You may onlyjump-start thevehicle whentheengine andexhau stsystem arecold.
R Do not start theengine ifthe battery isfrozen. Letthe battery thawfirst.
R Only jump-start frombatteries witha12 Vvoltage rating.
R Only usejumper cablesthat arenot dama gedand have asufficie ntcross-section andinsula ted
terminal clamps.
R Make surethatthetwo vehicle sdo not touch.
Make surethat:
R The jumper cablesare not dama ged.
R Non-insula tedparts ofthe terminal clampsdonot come intocontact withother metal partswhile
the jumper cablesare connected tothe battery.
R The jumper cablescannot comeintocontact withparts thatcanmove whentheengine isrunning,
such asthe V-belt pulley orthe fan.
X Secure thevehicle byappl ying theelectric parking brake.
X Shift thetransmission topositio n005D.
X Turn theSmartKey topositio n005A inthe ignition lockandremove it.
X Switch offallelectrical consumers, e.g.rear window defroster, lighting,etc.
X Open thehood. Jump-st
arting
283Breakd ownassis tance Z

Position
number0084identifies thecharged batteryofthe other vehicle oran equivalent jump-starting
device.
X Press togethercover 0043ofpositive clamp0044and slide itback.
X Connec tpositive terminal0044 onyour vehicle topositive terminal0087 ofdonor battery 0084using the
jumper cable,beginnin gwith your ownbattery.
X Start theengine ofthe donor vehicle andrunitat idling speed.
X Connec tnegative terminal0085 ofdonor battery 0084toground point0083ofyour vehicle usingthe
jumper cable,connectin gthe jumper cabletobattery ofother vehicle 0084first.
X Ifthe battery isfully discharged, leavethebattery thatisbeing usedtojump-st artconn ected for
a few minutes beforeattemptingtostart .This charges thebattery slightly.
X Start theengine.
X Before disconn ectingthe jumper cables,letthe engine runforseveral minutes.
X First ,remove thejumper cablesfromground point0083and negative terminal0085, then from pos-
itive termin al0044 and positive terminal0087. Begin eachtimeatthe cont acts onyour ownvehicle
first.
X Close cover0043ofpositive terminal0044 after removin gthe jumper cables.
X Close thehood.
X Have thebattery checkedataqualified specialist workshop.
i Jump-start
ingisnot cons idered tobe anormal operating condition.
i Jumper
cablesandfurther informationregarding jump-startingcanbeobtained atany qualified
specialist workshop. Towing
andtow-sta rting Impor
tantsafety notes G
WARNIN
G
Funct ionsrelevant tosafety arerestr icted or
no longer availabl eif:
R the engine isnot runnin g
R the brake system orthe power steerin gis
malfunct ioning
R there isamalfunct ioninthe power supply
or the vehicle's electricalsystem
When yourvehicle istowed awayortowed
start ed,you may require considerably more
effort tosteer andbrake. Thereisarisk ofan
accident .
In such cases, useatow bar. Before being
towed awayortow start ed,make surethe
steerin gmoves freely. G
WARNIN
G
You cannolonger steerthevehicle ifthe
steerin gwheel lockhasbeen engaged. There
is arisk ofan accident .
Always switchoffthe ignition whentowing the
vehicle withatow cable oratow bar. G
WARNIN
G
When towing ortow-st arting another vehicle
and itsweight isgreater thanthepermissible
gross weight ofyour vehicle, the:
R the towing eyecould detach itself
R the vehicle/t railercombinat ioncould roll-
over.
There isarisk ofan accident .
When towing ortow-st arting another vehicle,
its weight should notbegreater thantheper-
missible grossweight ofyour vehicle.
Det ails onthe permissible grossvehicle weight
of your vehicle canbefound onthe vehicle iden-
tificat ionplate (Ypage 318). 284
Towing
andtow-sta rtingBr eakdown assistance

!
When
Active Brake Assist, Active Distance
Assist DISTRONIC orthe HOLD function is
activated, thevehicle brakesautomaticall yin
certain situations.
To avoid damage tothe vehicle, deactivate
these systems inthe followi ngorsimila rsit-
uations:
R when towing thevehicle
R in the carwash
! Make
surethattheelectric parking brakeis
released .If the electric parking brakeisfaulty,
visit aqual ified speciali stworkshop.
! Only
secure thetow rope ortow baratthe
towing eyes.Otherwise, thevehicle couldbe
damage d.
! Do
not use thetowing eyesforrecovery pur-
poses asthis could damage thevehicle. Ifin
doubt, recover thevehicle withacrane.
! When
towing, pullawayslowly and
smoothly. Ifthe tractive poweristoo high, the
vehicles couldbedamage d.
! The
vehicle canbetowed amaximum of
30 miles (50km). Thetowing speedof30 mph
(50km/h) mustnotbeexceeded.
If the vehicle hastobe towed morethan
30 miles (50km), thefront axlemust beraised
or the entire vehicle raisedandtransported.
! Do
not tow with sling-type equipment. This
could damage thevehicle.
! When
towing awayvehicles withKEYLES S-
GO, usethekey instead ofthe Start/ Stop
button. Theautomatic transmission mayoth-
erwise shifttoposition 005Dwhen youopen the
driver's orfront -passenger door,which could
damage thetransmission.
! Vehicles
withautomatic transmission must
not bestarted bytow-start ing.This could oth-
erwise damage thetransmission.
It is better tohave thevehicle transported than
to have ittowed away.
If the vehicle cannolonger bedriven because of
an accident orbreakdown, youhave thefollow-
ing options:
R Transporting thevehicle.
As arule, youshould havethevehicle trans-
ported.
R Towing thevehicle withatow rope ortow bar. Only
towthevehicle inexceptional cases.
The battery mustbeconnec tedand charged.
Otherwise, you:
R cannot turntheSmartKey toposition 0048in
the ignition lock.
R cannot release theelectric parking brake.
R cannot shiftthetransmission toposition 005C.
The function ofthe electric parking brakeand
the parking lockisdependent onthe on-board
voltage.
If the on-board voltageislow orifthere isasys-
tem malfunction:
R the electric parking brakemaynotbeappli ed
in certain circumstances, or
R itmay nolonger bepossible toshift thetrans-
mission toposition 005D
Switch offnon- essential consumers, e.g.the
radio.
Deactivate theautomatic lockingfeaturebefore
the vehicle istowed (Ypage 189). Youcould
otherwise belocked outwhen pushing ortowing
the vehicle. Installin
g/removing thetowing eye
Installin gthe towing eye The
brackets forthe screw-in towingeyeare
located inthe bumpers. Theyareatthe rear and
at the front ,under covers 0043.
X Remove thetowing eyefrom thestowage
space. Towing
andtow-start ing
285Breakdown assistance Z

The
towing eyeislocated withthevehicle tool
kit under thecargo compart mentfloor
(Y page 274).
Vehicles withtheTIREFIT kit:the towing eyeis
beneath thetire inflation compressor
(Y page 274).
X Press themark oncover 0043inwards inthe
direction ofthe arrow.
X Take cover 0043offthe opening.
X Scr ewinthe towing eyeclock wisetothe stop.
Removing thetowing eye X
Unsc rewand remove thetowing eye.
X Attach cover 0043tothe bumper andpress until
it engages.
X Place thetowing eyeinthe stowage well
beneath thecargo compart mentfloorinthe
cargo compart ment(Ypage 274).
X Vehicles withtheTIREFIT kit:put back thetire
inflation compressor (Ypage 274). Towing
thevehicle withthefront axle
raised
Observe theimportant safetynoteswhen tow-
ing your vehicle withthefront axleraised
(Y page 284).
Only vehicles without4MATICcanbetowed
with thefront axleraised.
! Vehicles
with4MATI Cmust notbetowed
with either thefront orthe rear axle raised, as
doing sowill damage thetrans mission.
Vehicles with4MATI Cmay either betowed away
with both axles onthe ground orbe loaded up
and trans ported.
! The
ignition mustbeswitched offifthe vehi-
cle isbeing towed withthefront axleraised.
Otherwise, ESP®
may intervene anddamage
the brake system.
X On
vehicles withKEYL ESS-GO orthe KEY-
LESS-GO startfunction: youmust usethe
Smart Keyinstead ofthe Start /Stopbutton
(Y page 124).
X Make surethatthevehicle isstation ary.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock.
X When thevehicle isstation ary,depress the
brake pedalandkeep itdepressed. X
Shift theautomatic transmission toposition
005D.
X Release thebrake pedal.
X Release theelectric parking brake.
X Switch offthe automatic locking
(Y page 189).
X Switch onthe hazard warning lamps
(Y page 103).
X Turn theSmart Keyinthe ignition locktoposi-
tion 005Aand leave theSmart Keyinthe ignition
lock. Towing
avehicle withboth axles on
the ground
It is important thatyouobserve thesafety
instr uctions whentowing awayyourvehicle
(Y page 284).
X On
vehicles withKEYL ESS-GO orthe KEY-
LESS-GO startfunction: youmust usethe
Smart Keyinstead ofthe Start /Stopbutton
(Y page 124).
The automatic transmission automatically shifts
to position 005Dwhen youopen thedriver's or
front -passenger doororwhen youremove the
Smart Keyfrom theignition lock.Inorder to
ensure thattheautomatic transmission staysin
position 005Cwhen towing awaythevehicle, you
must observe thefollowing points:
X Make surethatthevehicle isstation ary.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock.
X Depress andhold thebrake pedal.
X Shift theautomatic transmission toposition
005C.
X Leave theSmart Keyinposition 0048inthe igni-
tion lock.
X Release thebrake pedal.
X Release theelectric parking brake.
X Switch onthe hazard warning lamps
(Y page 103).
i In
order tosignal achange ofdirection when
towing thevehicle withthehazard warning
lamps switched on,use thecombinat ion
switch asusual. Inthis case, onlytheindicator
lamps forthe direction oftravel flash.After
resett ingthe combinat ionswitch, thehazard
warning lampstartsflashing again. 286
Towing
andtow-sta rtingBr eakdown assistance