2019 MERCEDES-BENZ CLA COUPE coolant

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
engine doesnot
start. Youcannot hear
the starter motor. The
on-board voltageistoo low because thebattery istoo weak or
discharged.
X Jump-start thevehicle (Ypage 282).
If the engine doesnotstart despite attemptsto jump-st artit:
X Consult aquali fiedspecialist workshop. The
starter motorwasexposed toathermal loadthatwastoohigh.
X Allow thestarter motortocool down forapproximately twominutes.
X Try tostart theengine again.
If the engine stilldoes notstart:
X Consult aquali fiedspecialist workshop. The
engine isnot running
smoothly andismisfir-
ing. There
isamalfunction inthe engine electron icsorinamechanical
componen tof the engine management system.
X Only depress theaccelerator pedalslightly.
Otherwise, non-combusted fuelmay getinto thecatalytic converter
and damage it.
X Have thecause rectified immediately ataqual ified specialist work-
shop. The
coolant temperature
gauge shows avalue
above 248‡(120 †).
The coolant warning
lamp mayalsobeon and
a warning tonemay
sound. The
coolant levelistoo low. Thecoolant istoo hotand theengine isno
longer beingcooled sufficiently.
X Stop assoon aspossible andallow theengine andthecoolant to
cool down.
X Check thecoolant level(Ypage 263). Observe thewarning notes
as you dosoand add coolant ifnecessary. Notes
ontowing vehicles
The vehicle isnot suitable forattaching towbar
systems, suchasthose usedforflat towing or
dinghy towing.
Att aching orusing towbarsystems mayresult in
damage tothe vehicle.
When towing avehicle withtowbarsystems,
safe driving characterist icscannot beguaran-
teed forthe towing vehicle orthe towed vehicle.
The vehicle/trailer combinationmayswerve.
Observe thepermissible towingmethods
(Y page 287)andthenotes ontowing withboth
axles onthe ground (Ypage 286). DYNAMIC
SELECTbutt on(all vehicle s
except Mercedes-AMG vehicles)
Use theDYNAMIC SELECTbutton tochange the
drive program. Depending onthe drive program
selected thefollowing vehiclecharacterist ics
will change:
R the drive (engine andtransmission manage-
ment)
R the suspension (vehicleswithdamping sys-
tem orAMG adaptive sportsuspension sys-
tem)
R the sound ofthe exhaust system(vehicles
with sports exhaust system)
R the steering
R the availa bilityofthe ECO start/ stopfunct ion
R the climate control
Each timeyoustart theengine withtheSmart-
Key orthe Start /Stopbutton, driveprogram Cis DY
NAMIC SELECTbutt on(all vehicl esexce ptMercedes-AMG vehicles)
129Driving andparking Z

There
isashort delay before achange inoutside
temperat ureappears inthe multifunct iondis-
play. Coolant
temperaturegauge G
WARNIN
G
Opening thehood when theengine isover-
heated orwhen thereisafire inthe engine
compart mentcould expose youtohot gases
or other service products. Thereisarisk of
injury.
Let anoverheated enginecooldown before
opening thehood. Ifthere isafire inthe
engine compart ment,keep thehood closed
and cont actthe fire department . !
A
display message isshown ifthe coolant
temperat ureistoo high.
If the coolant temperat ureisover 248‡
(120 †),donot cont inue driving. Theengine
will otherwise bedamaged.
The coolant temperat uregage isin the instr u-
ment cluster onthe right- hand side(Ypage 33).
The Hmarking inthe coolant temperat uregauge
correspon dstoacoolant temperat ureof
approximately 248‡(120 †).
Under normal operating conditionsandatthe
correc tcoolant level,thecoolant temperat ure
gauge mayrisetothe Hmarking. Opera
tingtheon-board computer
Overview 0043
Multifunct iondisplay
0044 Right controlpanel
0087 Left controlpanel
X To activat ethe on-board computer:turn theSmart Keytoposition 0047inthe ignition lock.
You cancont rolthe multifunct iondisplay andthesettings inthe on-board computer usingthe
button son the multifunct ionsteerin gwheel. Displays
andoperat ion
179On-board computerand display s Z

Engine
Disp
laymes sages Possi
blecauses/cons equences and0050 0050
Solu tions 00BD
Che ck Che
ckCoo lant Coo
lantLev el Lev
el
See Operator'sMan ‐ See
Operator'sMan ‐
ual ual The
coolant levelis toolow.
! Av
oid longer journ eys when there isins ufficie ntcoo lant inthe
eng inecoo ling system. You couldot her wise damag eth eeng ine.
X Add coolant ,obse rving thewarn ingnotesbefo redoin gso
(Y page 263).
If you have toaddcoolan tfr equ ently:
X Con tacta qualifi edspec ialist workshop andhave theeng inecoo ling
syst emcheck ed. 00AC The
fanmot orismalf unctionin g.
X At coo lant temper aturesbelow 248‡( 120 †),drive tothe neare st
qua lified speci alist worksh op.
X Avoid heavyloa dson the engine asyou doso, e.g. drivi nginmoun-
tainou sterrai nand stop-and -gotraffic. 00AC
Coolan tToo Hot Coolan
tToo Hot
Stop Vehicl eTurn Stop
Vehicl eTurn
Engine Off Engine
Off The
coola ntistoo hot.
A wa rning tonealso sou nds.
G WARNING
Do not drive whenyou rengine isoverhe ated.Thiscancausesome
flu ids whichmay have leaked into theengine compartment tocatch
fire.
Steam fromtheoverhe atedengine canalso cau seseri ous burns which
can occur justbyopeni ngthe hood .
There isarisk ofinjury .
X Pul lover andstop thevehi clesafe lyand switch offthe engine, pay-
ing attention toroad andtraffic conditio ns.
X Secure thevehi cleaga inst rolling away (Y pag e142) .
X Wai tuntil theengine hascoole ddow n.
X Make surethattheairsup plytothe engine radiator isnot blocked,
e.g. bysnow, slush orice.
X Do not start theengine againuntil thedisp laymessa gegoes outand
the coola nttempera tureisbel ow 248 ‡(120 †).Otherw ise,the
engine couldbe dama ged.
X Pay attention tothe coola nttempera turedisplay.
If the temperature increase sagain :
X Visi ta qua lified speci alist worksh opimmed iately .
Under normal operatingconditio nsand with thespeci fiedcoola nt
leve l,the coola nttempera turemay riseto248 ‡(120 †). Di
splay messag es
207On-b oard comput erand displays Z

Exam
ple: eng ineoilcap
X Tu rn cap 0043cou nter-c lockwi seand remove it.
X Add engineoil.
If the oille vel isat or below the MIN markon
the oildi ps tick, add1.1 USqt(1.0 liter) of
eng ineoil.
X Re place cap 0043onthe fillerneck andturn
clo ckwi se.
Ensu retha tthe cap locks into place securely.
X Ch eck theoille vel again wi th the oildi ps tick
(Y page 261 ).
Fur therinfo rma tionon eng ineoil(Y page 322 ). Ch
eckin gand addi ngoth erservi ce
produ cts
Ch eckin gco olant leve l G
WA
RNING
The cooling system ispre ssu rize d,pa rtic ular ly
wh en the moto ris wa rm. Ifyo uop en the cap,
yo ucou ldbe sca lded ifhot coolant sprays out.
The reisaris kof inju ry.
Let the enginecoo ldo wn befor eyo uop en the
cap .We arpro tecti veglove sand protecti ve
ey ew earwh en openi ng. Open the cap slow ly
to release pre ssu re.
! The
coolant level mustonl ybe che cked and
corr ecte dwh en the enginehascoo led do wn
(co olant temp eratureund er104 ‡(40 †).
Ch ecki ngthe coolant level when the coolant
temp eratureis ove r104 ‡(40 †) can leadto
dama getothe engine orthe engine cooling
sys tem. X
Park thevehi cleonaleve lsurfa ce.
Only check thecoola ntleve lwhe nthe vehi cle
is on aleve lsurfa ceand theengine hascoole d
dow n.
X Turn theSmartKey toposi tion 0048inthe igni-
tion lock (Ypag e123).
X Che ckthe coola nttempera turedisplayin the
instrume ntclus ter.
The coola nttempera turemust bebelow
104 ‡(40 †).
X Turn theSmartKey toposi tion 005A
(Y pag e123) inthe igniti onlock .
X Slow lyturn cap0043counter-clo ckwiseandto
reli eve excess pressure.
X Turn cap0043further counter-clo ckwiseand
remove it.
If the coola ntisat the leve lof marker bar0087
in the filler neck whencold, there isenoug h
coola ntincoola ntexpa nsion tank0044.
X Ifnecessa ry,add coola ntthat hasbeentested
and approved byMerced es-Benz.
X Rep lace cap 0043and turn itclockwi seasfar as
it wil lgo.
For further informa tiononcoola nt,see
(Y pag e323) .
Windshi eldwashe rsyste m G
WARNING
Certa incomponents inthe engine compart-
ment, suchasthe engine, radiator andparts
of the exhau stsys tem, canbecome veryhot.
Working inthe engine compartment posesa
risk ofinjury .
Where possible,let the engine cooldownand
touch onlythecomponents describedinthe
foll owi ng. Eng
inecompar tment
263Maintenanceand care Z

R
Plug-type couplings
R Light bulbs
R Seals
R Trim elements
R Vent ilation slots
Damaged sealsorelectric alcompon entscan
lead toleaks orfailures.
Cleaning thepaint work !
Do
not affix:
R stick ers
R films
R magnetic platesorsimilar items
to painted surfaces. Youcould otherwise
damage thepaintwork .
Scr atches, corrosivedeposits, areasaffectedby
corros ionand damage causedbyinadequate
care cannotalway sbe completely repaired.In
such cases, visitaqualified specialist workshop.
X Remove dirtimmediately, wherepossible,
while avoiding rubbingtoohard.
X Soak insect remains withinsect remover and
rinse offthe treat edareas afterwards.
X Soak birddroppings withwater andrinse off
the treat edareas afterwards.
X Remove treeresin, oils,fuels andgreases by
rubbing gentlywith acloth soaked inpetro-
leum ether orlighter fluid
X Remove coolantandbrake fluidwithamoist
cloth andclear water.
X Use tarremover toremove tarstains.
X Use silicone remover toremove wax.
If water nolonger forms"beads" onthe paint
surface, usethepaint careproducts recommen-
ded andapproved byMercedes- Benz.This isthe
case approximately everythreetofive mont hs,
depending onthe climate conditionsandthe
care product used.
If dirt has penetr atedthepaint surface orifthe
paint hasbecome dull,thepaint cleaner recom-
mended andapproved byMercedes- Benz
should beused.
Do not use these careproducts inthe sun oron
the hood while thehood ishot.
X Use asuitable touch-upstick ,e.g. MBTouch-
Up Stic k,to repair slightdamage tothe paint-
work quickly andprovisionally. Mat
tefinish care !
Never
polish thevehicle orthe light alloy
wheels. Polishing causesthefinish toshine.
! The
following cangive thepaint aglossy
appearance andthus reduce thematt effect :
R Rubbing hardwithunsuitable agents
R Washing thevehicle indirect sunlight
! Never
usepaint cleaner, buffingorpolishing
products, orgloss preserver, e.g.wax, forthe
purpose ofpaintwork care.These products
are only suitable forhigh-gloss surfaces.Their
use onvehicles withmattepaintwork leadsto
cons iderable surfacedamage or,more spe-
cifically, toshiny, spottedareas.
Always havepaintwork repairscarried outata
qualified specialist workshop.
! Only
useautomatic carwashes whichcor-
respond tothe latest technological stand-
ards. Never usewash programs whichfinish
by treat ingthe vehicle withhotwax.
Observe thesenotesifyour vehicle hasaclear
matt efinish. Thiswillhelp youtoavoid damage
to the paintwork duetoincor recttreat ment .
These notesalso apply tolight alloy wheels with
a clear mattefinish.
Use only insect remover andcarshampoo from
the range ofcare products approved by
Mercedes- Benz.
Cleaning thedecorat ivefilm !
The
following mayhave aneffect onthe ser-
vice lifeand color ofdecorative film:
R sunlight
R temperat ure,e.g.hot-airfan
R weather conditions
R ston eimpacts anddirt
R chemical cleaningagents
R greasy substanc es
! Do
not use anytypes ofpolish onmatt dec-
orative film.Polishing surfacescoveredwith
film gives itashiny finish.
! Do
not treat mattorstruc tured decorative
film with wax. Thismay lead tomarks that
cann otbe removed.
Observe thenotesinthe sect iononthe care and
treat ment ofmatt epaintwork (Ypage 267),
these notesalso apply tomatt edecorative film. Care
267Maintenance andcare Z

Uniform
TireQualit yGra ding Standar ds
A unifor mstan dard tograde thequality oftires
with regards totread quality, tiretraction and
tempe rature charac teristics.The quality grad-
ing assessmen tis made bythe manufac turer
following specificationsfrom theU.S.govern -
ment .The ratin gsare molded intothe sidewall of
the tire.
Recomm endedtirepr essures
The recom mended tirepressure appliestothe
tires mount edatthe factory.
The Tire andLoading Informat ionplacard con-
tains therecom mended tirepressures forcold
tires onafully loaded vehicle andforthe maxi-
mum permissible vehiclespeed.
The tirepressure tablecontains therecom men-
ded pressures forcold tires forvarious operat-
ing con dition s,i.e. differin gload andspeed con-
dition s.
Increased vehicleweightduetooptiona l
equip ment
The combin edweight ofall stan dard and
option alequipment availableforthe vehicle,
regardless ofwhether itis actually installed on
the vehicle ornot .
Rim
This isthe part ofthe wheel onwhich thetire is
mount ed.
GAWR (Gross AxleWeight Rating)
The GAWR isthe maximum grossaxleweight
ratin g.The actual loadonanaxle must never
exc eed thegross axleweight rating.The gross
axle weight ratingcan befound onthe vehicle
ident ificationplate onthe B-pillar onthe driver' s
side.
Speed rating
The speed ratingis part ofthe tire ident ification.
It specifies thespeed rangeforwhich thetire is
approved.
GVW (Gross Vehicle Weight)
The gross vehicle weightincludes theweight of
the vehicle includin gfuel, tools, thespare wheel,
access oriesinstalled, occupants, luggage and
the drawbar noseweight ,if applicable. Thegross
vehicle weightmustnotexceed thegross vehi-
cle weight ratingGVWR asspecified onthe vehi-
cle ident ificationplate onthe B-pillar onthe
driver' sside. GVW
R(Gross Vehicle WeightRating)
The GVWR isthe maximum permissible gross
weight ofafully loaded vehicle (theweight ofthe
vehicle includin gall acces sories, occupants,
fuel, luggage andthedrawbar noseweight ,if
applicable). Thegross vehicle weightratingis
specified onthe vehicle identificationplate on
the B-pillar onthe driver' sside.
Maxim umloaded vehicle weight
The maximum weightisthe sum of:
R the curb weight ofthe vehicle
R the weight ofthe acces sories
R the load limit
R the weight ofthe factoryinstalled option al
equipment
Kilopascal (kPa)
Metr icunit fortire pressure. 6.9kPa corre-
sponds to1psi. Another unitfortire pressure is
bar. 100 kilopasc als(kPa) arethe equivalent of
1 bar.
Load index
In addition tothe load-bearin gindex ,the load
index mayalsobeimprin tedonthe sidewall of
the tire. This specifies theload-bearin gcapacit y
more precise ly.
Curb weight
The weight ofavehicle withstandard equipment
includin gthe maximum capacityof fuel, oiland
coolant .It also includes theair-c ondit ioningsys-
tem andoption alequipment ifthese areinstal-
led inthe vehicle, butdoes notinclude passen-
gers orluggage.
Maxim umload rating
The maximum tireload isthe maximum permis-
sible weight inkilogram sor lbs forwhich atire is
approved.
Maxim umperm issible tirepr essure
Maximum permissible tirepressure forone tire.
Maxim umload onone tire
Maximum loadonone tire. This iscalculated by
dividing themaximum axleload ofone axle by
two. All
about wheels andtires
309Wheels andtires Z

differen
tfor every vehicle andcandeviate
from thedata shown here.Youcanfind the
data applicable toyour vehicle onthe vehicle
ident ification plate. Vehicle
identification number(VIN) X
Slide theright -handfron tseat toits rearmost
position .
X Fold floor cover ing0043upwards.
You willsee VIN 0044.
The VINcanalso befound onthe vehicle iden-
tific ation plate(Ypage 318).
The VINcanalso befound atthe lower edgeof
the windshield (Ypage 319). Engine
number 0043
Emiss ioncontrol infor mation plate,includ-
ing the cert ification ofboth federal andCali-
forn ianemission sstan dards
0044 VIN (onthe lower edgeofthe windshield)
0087 Engine number (stamped intothe cran k-
case) Service
product sand filling capaci-
ties Impor
tantsafet ynotes G
WARN
ING
Serv iceproduct smay bepoisonous andhaz-
ardous tohealth. Thereisarisk ofinjury.
Comply withinstruct ions onthe use, storage
and disposal ofservic eproduct son the labels
of the respect iveoriginal container s.Always
stor eservic eproduct ssealed intheir original
con tainer s.Always keepservic eproduct sout
of the reach ofchildren . H
Environm
entalnote
Dispose ofservic eproduct sin an envir on-
ment allyrespon siblemann er.
Serv iceproduct sinclude thefollowing:
R Fuels
R Lubrican ts(e.g. engin eoil, tran smission oil)
R Coolant
R Brak efluid
R Windshield washerfluid
R Climate control system refrigerant
Componen tsand servic eproduct smust match.
Only useproduct srecom mended byMercedes -
Ben z.Damage whichiscaused bythe use of
product swhich havenotbeen recom mended is
not cover edbythe Mercedes -Benzwarrant yor
goodwill gestures.Product sapproved by
Mercedes -Benzare listed inthis Operator 's
Manual inthe appropriate section.
Inf ormat ionontest edand approved products
can beobtained ataMercedes -BenzServ ice
Center oron the Internet at
htt p:// bevo.m ercedes- benz.com.
You canrecogniz eserv iceproduc tsapprove dby
Merc edes- Benzby the followin ginsc ription on
the contain ers:
R MB- Freigabe (e.g.MB-Freigabe 229.51)
R MB- Appr oval(e.g. MB-Appr oval229.51)
Oth erdesign ationsor rec omme ndations indi-
cat ealevel ofquality oraspecif ication in
acco rdanc ewith anMB Shee tNumber (e.g.MB
229 .5).They have notnecessarily been
approve dby Merc edes- Benz. Serv
iceproduct sand filling capacities
319Technical data Z

Coolan
t
Imp ortant safety notes G
WAR
NING
If ant ifreez ecom esintocon tactwit hhot com -
pon ents intheen gin ecom partmen t,itmay
ign ite.Ther eis aris kof fireand injury.
Let theen gin ecoo ldown before you add anti-
fr eez e.Mak esure that ant ifreez eis no tspille d
ne xt to thefille rne ck.Thor oughl ycle an the
ant ifreez efrom com ponents bef ore start ing
th een gin e.
! On
lyadd coolant that has been premixed
wit hth edesir edant ifreez epro tection .You
coul dot her wise damag eth een gin e.
You canfindaddit ionalno teson thecoo lant in
th efoll owin gplac es:
R in theMer cedes-Ben zSpe cificat ionsfor
Ser vicePro duct s,MB BeV o31 0.1
- on theIn te rn et at
ht tp :/ /be vo.mer cedes-ben z.com
- on theMer cedes-Ben zBeV oapp
R aqualif iedspec ializedwork shop
! Always
useasuit able coolant mixture,eve n
in coun tries wher ehigh temper aturesprev ail.
Ot her wise, theen gin ecoo lingsyst emisno t
suff iciently pro tected from corrosion and
ove rheatin g.
i Hav
eth ecoo lant regularly replaced ata
qualif iedspec ialist workshopand therepl ace-
men tcon firmed intheMain tenan ceBoo klet.
Comp lywit hth eimpo rtant safe tyno tesfor ser-
vic epro duct swhen handlingcoo lant
(Y page 319).
The coolant isamix tureof wate rand corrosion
inh ibit or/ antifreez econ centrate .It perf orms
th efoll owin gtas ks:
R ant i-corr osio npro tection
R ant ifreez epro tection
R rais ingtheboilin gpoin t
If th ecoo lant hasantifreez epro tection down to
-35 ‡(-37 †),theboilin gpoin tof thecoo lant
durin goper ationis appro ximately26 6‡
(13 0†). The
antifreez econ centrate /corr osio ninh ibit or
con centratio nin theen gin ecoo lingsyst em
sho uld:
R be atleast 50%. This willprotect theen gin e
coo lingsyst emagain stfreez ing down to
appro ximately-35‡ (-3 7†)
R no tex cee d55 %(ant ifreez epro tection down
to -49‡[ -45 †]).Othe rwise, hea twi llnot be
di ssi pated aseffe ctive ly
Mer cedes-Be nzreco mme ndsacool antorcor-
ros ion inh ibito r/a ntifr eeze conce ntrate in
acco rdance with
MB Specificati ons forServ iceProducts 310.1 .
i Whe
nthe vehicleis first de livere d,itis filled
wi th acool antmixtu retha tensu resadeq uate
anti free zeand anti-corr osion pro tecti on.
i The
coolantische cked with eve rymai nte-
nance intervalat aqu alifi ed spe cialist wo rk-
sho p.
Fi llin gcapa citie s Mode
l Capa
city Merc
edes‑AMG
ve hic les App
rox. 12.6 USqt
(11. 9l) Al
lot her models Approx.
8.2USqt
(7.8 l) Windshi
eldwashe rsystem
Important safetynotes G
WARNING
Windsh ieldwa sher concentrate couldignite if
it comes intocontact withhotengine compo-
nents orthe exhau stsystem .There isarisk of
fire and injury .
Make surethatnowind shieldwa sher con-
centrate isspil led next tothe filler neck.
! Only
MBSummerFi tand MBWinterFit
wa sher fluidshou ldbe mixed together. The
spra ynozzles mayotherwi sebecome
blocked .
Do not use disti lledor de-io nized water. Other-
wis e,the leve lsensor maygiveafals eread ing. Servi
ceproducts andfilling capaci ties
323Techn ical data Z