2019 MERCEDES-BENZ CLA COUPE battery

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 00AF
Obt ain aNew Key Obt
ain aNew Key The
SmartKey needs tobe rep lace d.
X Vis itaqualif iedspecialistwor kshop . 00AF
Rep laceKey Battery Rep
laceKey Battery The
SmartKey battery isdisc harged.
X Chan gethebat tery (Y page 73). 00AF
Don 'tForget Your Don
'tForget Your
Key Key The
displaymes sage issho wnforamax imum of60 sec onds and is
on lyarem inder.
You haveopen edthedri ver 'sdoor withth een gin eswit ched off.The
Sm artKey isno tin theign ition lock.Awarn ingtone soun ds.
X Tak eth eSm artKey withyou when youleaveth eveh icle. 00AF
Key NotDetect ed Key
NotDetect ed
(re ddisp laymes sage ) The
SmartKey isno tin theveh icle.
A warn ingtone also soun ds.
If th een gin eis swit ched off,you can nolonger lockth eveh iclece n-
tr ally orstart theen gin e.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 142).
X Loc ate theSm artKey. Be
caus eth ere isint erf ere ncefrom ast ron gsour ceofradi owave s,the
Sm artKey isno tdet ectedwhils tth een gin eis run ning.
A warn ingtone also soun ds.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 142).
X Inser tth eSm artKey intoth eign ition lockand drive inSm artKey
mod e. 00AF
Key NotDetect ed Key
NotDetect ed
(whit edisp laymes sage ) The
SmartKey iscur ren tly und etec ted.
X Chan getheloc ation oftheSm artKey intheveh icle.
If th eSm artKey still can notbe det ected:
X Ope rateth eveh iclewit hth eSm artKey intheign ition lock. 00AF
Rem ove 'Start'But ‐ Rem
ove 'Start'But ‐
ton andInsert Key ton
andInsert Key The
SmartKey isco ntinu ally undetec ted.
The SmartKey detection fun ction has ate mpo rarymalf unction oris
fault y.Awarn ingtone also soun ds.
X Inser tth eSm artKey intoth eign ition lockand turnit to thedes ired
pos ition .
X Vis itaqualif iedspecialistwor kshop . Disp
laymes sage s
219On -boar dcomp uter anddi sp lay s Z

X
Vehi
cles with asto wag eco mpartmen t
co ver:pre ssthe lowe rsecti onofcove r0043.
The stow agecomp artmentopens.
X To remo vethe inse rt: lift inse rt0087 up0044 and
ou t.
X To re-i nsta llthe inse rt: pre ssinse rt0087 into
the holder untilit enga ges.
i If
yo uremo vethe ashtra yinse rt,youcan use
the resulting comp artmentforstow age.
Rear compartment ashtray X
To ope n:pullcove r0087 outby its top edge.
X To remo ve:pu llinse rt0044 byrece ss0043 inthe
di recti onofarr ow 0085unti lit au dibl yrel eases .
X Lif tinse rt0044 upand out.
X To instal lthe inse rt: insta llinse rt0044 from
ab ove into theholder and pressdow nunti lit
enga ges. Ci
gare ttelighte r G
WARNI
NG
Yo ucan burn yours elfif yo utou chthe hot
hea ting eleme ntor the socke tof the cigare tte
li ghte r.
In addition, flamma blemate rialscan ignite if:
R the hot cigare tte lighte rfal ls
R achi ldhol dsthe hot cigare tte lighte rto
obje cts,forexa mpl e
The reisaris kof fire and injury.
Alw ayshol dthe cigare tte lighte rby the knob.
Alw aysmake sure that thecigare tte lighte ris
ou tof rea chofchi ldren. Neve rle ave children
uns upervi sed inthe vehicle. Yo
ur atte ntion mustal wa ysbe focu sedonthe
traf ficcondi tions.Only usethe cigare tte lighte r
wh en roa dand trafficcondi tions permit. X
Tu rn the Smar tKeytopos ition 0048 inthe igni-
tion lock (Ypage 123 ).
X Vehi
cles with asto wag eco mpartmen t
co ver:pre ssthe lowe rsecti onofcove r0043.
The stow agecomp artmentopens.
X Pre ssincig are tte lighte r0044.
Ci ga rette lighte r0044 willpop outau toma tically
wh en the heating eleme ntisred -hot. 12
Vso cke ts
Gen eral notes X
Tu rn the Smar tKeytopos ition 0047 inthe igni-
tion lock (Ypage 123 ).
The socke tscan beused for acce ssorieswi th a
maxi mum drawof 180 W(15A). Accessori es
inclu desuch items ascharge rsfor mobi le
phones .
If you usethesockets forlong periods whenthe
engine isswi tched off,thebattery maydis-
charge .
An emerg encycut-out ensuresthat theon-
boa rdvolta gedoes notdrop toolow.If the on-
boa rdvolta geistoo low,the pow erto the sock-
ets isau tomatica llycut. This ensure sthat there
is suffi cient powerto start theengine.
Soc ket inthe front center conso le X
Vehic
leswith astow agecompartm ent
co ver: press thelowersection ofthe cover.
The stowa gecompa rtment opens.
X Lift upthe cover ofthe socket. Fe
atures
247Stowageand features Z

G
WARNING
Windsh ieldwas herconcentrate couldignite if
it comes intocontact withhotengine compo-
nents orthe exhau stsystem. Thereisarisk of
fire and injury .
Make surethatnowinds hieldwas hercon-
centrate isspil led next tothe filler neck. X
To open :pul lcap 0043upw ards bythe tab.
X Add thepremi xedwasherfluid.
X To clo se: press cap0043onto thefiller neck
until itengag es.
If the was herfluidleve ldrops below the recom-
mended minimumof 1liter, amessa geapp ears
in the multi function displayprompti ngyou to
add washerfluid(Y pag e218) .
Further informati ononwinds hieldwas herfluid/
antifree ze(Y pag e323) . ASSY
STPLU S Servic
emessag e
The ASSYST PLUSservice interval display
informs youofthe next service duedate.
You canfind informati onon the type ofservice
and service intervalsin the Maintenance Book-
let.
You canobtai nfurther informati onfrom an
au thorized Mercede s-BenzCenter orat
http://www.mb usa.com (USA only).
i The
ASSYST PLUSservice interval display
does notshow anyinformati ononthe engine
oil leve l.Observe thenotes onthe engine oil
leve l(Y pag e261) . The
multi function displayshow sa service mes-
sage forsevera lseconds, e.g.:
R Service Ain ..days Service
Ain ..days
R Service Adue Service
Adue
R Service Aoverdue by..days Service
Aoverdue by..days
Dependi ngon the opera tingconditions ofthe
vehicl e,the remai ningtime ordista nceuntil the
next service duedate isdisp layed.
The letter A A
or B B,
possi blyinconnection witha
number oranother letter,indicatesthe type of
service .A A
stands foraminor service andB B
for a
major service .
You canobtai nfurther informati onfrom an
au thorized Mercede s-BenzCenter.
The ASSYST PLUSservice interval displaydoes
not take intoaccount anyperiods oftime during
whi chthe battery isdisconnected.
Mai ntaining thetime-dep endentservice sched-
ule :
X Note downthe service duedate displayed in
the multi function displaybefore disconnect-
ing the battery .
or X After reconnecting thebattery ,sub tract the
battery disconnectio nperi ods from theser-
vice date show non the disp lay. Hiding
aservi cemessag e
X Press the0076 or0038 button onthe steering
whee l. Di
splayin gservi cemessag es
X Switch onthe ignitio n.
X Press the0059 or0065 button tosele ctthe
Serv. Serv.
menu.
X Press the0063 or0064 button tosele ctthe
ASSYST ASSYST
PLUS PLUS
submenu andconfirm bypress-
ing the 0076 button.
The service duedate appears inthe multi -
function display. 264
ASS
YST PLUSMainten anceandcare

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