2019 MERCEDES-BENZ CLA COUPE maintenance

systems,
e.g.thebrake system. Useonly genu-
ine Mercedes-Benz partsorparts ofequa lqual -
ity. Only usetires, wheels andaccessories that
have been specifically approvedforyour vehi-
cle.
Genuine Mercedes-Benz partsaresubject to
strict qualitycont rol.Every parthasbeen spe-
cifically developed ,manufactured orselected
for and adap tedtoMercedes-Benz vehicles.
Therefore, onlygenuine Mercedes-Benz parts
should beused.
More than300,000 differentgenuine
Mercedes-Benz partsareavail able for
Mercedes-Benz models.
All authorized Mercedes-Benz Centersmaintain
a supply ofgenuine Mercedes-Benz partsfor
necessary serviceandrepair work.Inaddition,
strategically locatedpartsdelivery centerspro-
vide quick andreliab leparts service.
Always specify thevehicle identification number
(VIN) when ordering genuineMercedes-Benz
parts (Ypage 318). Operator
'sManual Vehicle
equipment
i This
Operator's Manualdescribes allmodels
and allstandard andoptional equipment of
your vehicle available atthe time ofthis Oper-
ator's Manual goingtoprint. Country-specific
differences arepossible .Bear inmind that
your vehicle maynotfeature allfunctions
described here.Thisalso appli estosafety-
relevant systems andfunctions. Theequip -
ment inyour vehicle maytherefore differfrom
that shown inthe descriptions andillustra-
tions.
The original purchase agreement listsallsys-
tems installed inyour vehicle.
Should youhave anyquestions concerning
equip ment andoperation, pleaseconsult an
authorized Mercedes-Benz Center.
The Operator's ManualandMaintenance Book-
let are important documents andshould bekept
in the vehicle. Service
andvehicl eoperation Warr
anty
The Limited Warranty foryour vehicle appliesin
accordance withthewarranty termsandcondi-
tions inthe Service andWarranty Information
booklet.
Your authorized Mercedes-Benz Centerwill
replace andrepair allfactory-inst alledparts in
accordance withthefollowi ngwarranty terms
and conditions:
R New Vehicle Limited Warranty
R Emission SystemWarranty
R Emission Performance Warranty
R Cal ifornia, Connecticut ,Maine, Massachu-
setts, NewYork, Pennsylvania, RhodeIsland
and Vermont Emission ControlSystem War-
ranty
R State warranty enforcemen tlaws (lemon
laws)
Repla cement partsandaccessories arecovered
by the Mercedes-Benz PartsandAccessories
warranties. Theseareavail able atany author-
ized Mercedes-Benz Center.
i Should
youlose your Service andWarranty
Information booklet,haveanauthorized
Mercedes-Benz Centerarrange forareplace-
ment. Thenew Service andWarranty Infor-
mation booklet willbeposted toyou. Information
forcustomers inCalifor-
nia
Under California lawyou may beentitled toa
replacement ofyour vehicle orarefund ofthe
purchase priceorlease price, ifafter areason-
able number ofrepair attempts Mercedes-Benz
USA, LLCand/or itsauthorized repairorservice
facilities failtofix one ormore substantial
defects ormalfunctions inthe vehicle thatare
covered byits express warranty.
During theperiod of18 months fromoriginal
delivery ofthe vehicle orthe accumula tionof
18,000 miles(approximately 29,000km)onthe
odometer ofthe vehicle, whichever occursfirst,
a reasonable numberofrepair attempts ispre-
sumed foraretail buyeror lessee ifone ormore
of the followi ngoccurs:
(1) thesame substantial defectormalfunction
results inacondition thatislikely tocause Service
andvehic leoperation
25Introduction Z

X
Make surethatthewindshield wipersare
switched off.
X Pull release lever0043onthe hood.
The hood isreleased. X
Reach intothegap between thehood andthe
radiator trimandpress hoodcatch lever0044to
the left.
X Raise thehood. X
Pull support strut0085out ofbracket 0083.
X Lift upsupport strut0085and insert itinto yel-
low retaining clip0087. Closi
ngthe hood X
Raise thehood slightly and,atthe same time,
remove support strut0085from yellow retaining
clip 0087.
X Swing support strut0085down andpress itinto
bracket 0083until itengages.
X Lower thehood andletitfall from aheight of
approximately 8in (20 cm).
X Check thatthehood hasengaged properly.
If the hood canberaised slightly, itis not
properly engaged. Donot press thehood
closed. Openthehood again andclose itwith
a little more force. Engine
oil
General notes Depending
onyour driving style,thevehicle
consumes upto0.9 USqt(0.8 liters) ofoil per
600 miles (1,000 km).Theoilconsumption may
be higher thanthiswhen thevehicle isnew orif
you frequently driveathigh engine speeds.
Depending onthe engine, theoildipstick maybe
in adifferent location.
When checkingthe oillevel:
R park thevehicle onalevel surface
R the engine shouldbeswitched offfor approx-
imately fiveminutes ifthe engine isat normal
operating temperature
R ifthe engine isnot atnormal operating tem-
perature, e.g.ifthe engine wasonly started
briefly, waitabout 30minutes beforecarrying
out themeasurement
Checking theoillevel using theoildip-
stick G
WARNING
Certain componen tsinthe engine compart-
ment, suchasthe engine, radiator andparts
of the exhaust system,canbecome veryhot.
Working inthe engine compartmen tposes a
risk ofinjury.
Where possible, letthe engine cooldown and
touch onlythecomponen tsdescribed inthe
following. Engi
necompar tment
261Maintenance andcare 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

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

To
avoid damage tothe vehicle, deactivate
Act ive Distan ceAssist DISTRONIC andthe
HOLD functioninthe following orsimilar sit-
uations:
R when towing thevehicle
R in the carwash
! Never
cleanyourvehicle inaTouchless
Automat icCar Wash asthese usespecial
cleaning agents.Thesecleaning agentscan
damage thepaintwork orplastic parts.
! Make
surethattheautomatic transmission
is in trans mission position 005Cwhen washing
your vehicle inatow-t hrough carwash. The
vehicle maybedamaged inanother transmis-
sion position.
! Make
surethat:
R the side windows andthesliding sunroof
are fully closed
R the blower isswitched off
R the windshield wiperswitch isat position
0092
The vehicle mayotherwise bedamaged.
You canclean thevehicle atan automatic car
wash fromthevery start.
Preferably cleanthevehicle atautomatic car
washes thatusetextilewashing elements with-
out brushes. Thiswillprevent finescratc hesto
the paintwork ordecorative films.
If the vehicle isvery dirty, pre-wash itbefore
cleaning itin an automatic carwash.
Aft erusing anautomatic carwash, wipeoffwax
from thewindshield andthewiper blades. This
will prevent smearsandreduce wipingnoises
caused byresidue onthe windshield.
i Vehicles
withdecorative film:select awash
program withouthotwax atthe automatic car
wash.
Washing byhand In
some countries,washing byhand isonly
allowed atspecially equipped washingbays.
Observe thelegal requirement sin each count ry.
X Do not use hotwater anddonot wash the
vehicle indirect sunlight.
X Use asoft sponge toclean.
X Use amild cleaning agent,suchasacar
shampoo approved byMercedes- Benz. X
Thoroughly hosedown thevehicle withagen-
tle jet ofwater.
X Do not point thewater jetdirectly towards the
air inlet orthe edges ofdecorative foils.
X Use plenty ofwater andrinse outthesponge
frequent ly.
X Rinse thevehicle withclean water anddry
thoroughly withachamois.
X Do not letthe cleaning agentdryonthe paint-
work orthe decorative foils.
Carefully removealldeposits ofroad saltas
soon aspossible whendriving inwinter.
Power washers G
WARNIN
G
The water jetfrom acircular jetnozz le(dirt
blasters) cancause invisible exteriordamage
to the tires orchassis compon ents.Compo-
nent sdamaged inthis way may failunexpect -
edly. There isarisk ofan accident .
Do not use power washers withcircular jet
nozz lestoclean thevehicle. Havedamaged
tires orchassis compon entsreplaced imme-
diately.
! Vehicles
withdecorative film:parts ofyour
vehicle arecovered withdecorative film.
Maintain adistance ofat least 27.5in(70cm)
between thefilm-c overed partsofthe vehicle
and thenozz leof the power washer.
Infor mation aboutthecorrec tdistance is
availab lefrom theequipment manufacturer.
Move thepower washer nozzlearound when
cleaning yourvehicle.
The water temperat ureofthe power washer
must notexceed 140‡(60 †).
! Always
maintain adistance ofat least 12in
(30 cm) between thevehicle andthepower
washer nozzle.Infor mation aboutthecorrec t
distance isavailabl efrom theequipment
manufact urer.
Move thepower washer nozzlearound when
cleaning yourvehicle.
Do not aim directly atany ofthe following:
R Tires
R Door gaps, roofgaps, joints,etc.
R Elect ricalcompon ents
R Batt ery 266
CareMaintenance
andcare

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

To
clean, useplenty ofwater andamild cleaning
agent without additional orabrasive products,
e.g. useacar shampoo approved forMercedes-
Benz .
X Dry vehicles coveredwithfilmusing asoft,
absorbent clothafterevery wash.
Water marks couldotherwise form.
Scr atches, corrosiv edeposits, areasaffectedby
corrosion anddamage causedbyinadequate
care cannotalway sbe completely repaired.In
such cases, visitaqualified specialist workshop.
X Remove dirtimmediately, wherepossible,
while avoiding rubbingtoohard.
The decorative filmmay beirreparably dam-
aged.
X Soak insect remains withinsect remover and
rinse offthe treated areasafterwards.
X Soak birddroppings withwater andrinse off
the treated areasafterwards.
The Paint Cleaner cleaning product, whichhas
been approved andrecomm endedby
Mercedes- Benz,should beused when dirthas
penetr atedthedecorative filmsurface orthe
decorative filmhasbecome dull.
The manufact urercanprovide youwith infor-
mation onspecial careandcleaning products.
Laminated surfacesmayexhibit optical differ-
ences tosurfaces whichwerenotprotec tedbya
decorative filmwhen thedecorative filmis
removed.
i Have
workorrepairs ondecorative filmcar-
ried outataqualified specialist workshop.
Mercedes- Benzrecomm endsthatyouusean
authorized Mercedes-BenzCenter forthis
purpose. Cleaning
thevehicle parts
Cleaning thewheels G
WARNIN
G
The water jetfrom acircular jetnoz zle(dirt
blasters) cancause invisible exteriordamage
to the tires orchassis compon ents.Compo-
nent sdamaged inthis way may failunexpect -
edly. There isarisk ofan accident .
Do not use power washers withcircular jet
noz zles toclean thevehicle. Havedamaged tires
orchassis compon entsreplaced imme-
diately.
! Do
not use acidic wheel cleaning products
to remove brakedust.Thiscould damage
wheel boltsandbrake compon ents.
! Do
not park yourvehicle foralong period of
time directly aftercleaning, particularly after
cleaning thewheel rimwith wheel cleaner.
Wheel cleaner canlead tothe increased cor-
rosion ofthe brake discsandpads. Therefore,
drive forafew minutes aftercleaning. By
heating upthe brakes, thebrake discsand
pads dry.Thevehicle canthen beparked fora
long period oftime.
Cleaning thewindows G
WARNIN
G
You could become trappedbythe windshield
wipers ifthey start moving whilecleaning the
windshield orwiper blades. Thereisarisk of
injury.
Always switchoffthe windshield wipersand
the ignition beforecleaning thewindshield or
wiper blades.
! Only
foldthewindshield wipersawayfrom
the windshield whenvertical.Otherwise, you
will damage thehood.
! Do
not use drycloths, abrasive products,
solvent sor cleaning agentscontaining sol-
vent sto clean theinside ofthe windows. Do
not touch theinsides ofthe windows with
hard object s,e.g. anice scraper orring. There
is otherwise arisk ofdamaging thewindows.
! Clean
thewater drainage channelsofthe
windshield andtherear window atregular
inter vals. Deposits suchasleaves, petalsand
pollen mayunder certaincircumst ancespre-
vent water fromdraining away.This canlead
to corrosion damageanddamage toelec-
tron iccompon ents.
X Clean theinside andoutside ofthe windows
with adamp clothandacleaning productthat
is recomm endedandapproved byMercedes-
Benz . 268
CareMaintenance
andcare

Clean
ingwiper blades G
WAR
NING
You couldbec ome trapped bythewind shield
wiper sif th ey start mov ingwhile cleanin gth e
wind shieldor wiper blades .Ther eis aris kof
inj ury.
Always switchoff thewind shieldwiper sand
th eign ition bef ore cleanin gth ewind shieldor
wiper blades .
! On
lyfold thewind shieldwiper saway from
th ewind shieldwhen vertical. Other wise, you
will damag eth ehood .
! Do
notpull thewiper blade. Other wise, the
wiper bladecouldbe damag ed.
! Do
notcle an wiper blades toooft en and do
no trub them toohard .Ot her wise, thegrap h-
ite coa tingcoul dbe damag ed.This could
caus ewiper noise.
! Hol
dth ewiper armsecurely when folding
back .The wind shieldcoul dbe damag edifth e
wiper armsmac ksagain stitsudde nly.
X Fol dth ewind shieldwiper armsaway from the
wind shield.
X Caref ullyclean thewiper blades withadamp
clo th.
X Fol dth ewind shieldwiper armsback again
bef ore swit ching ontheign ition .
Clean ingtheext erior ligh ting !
On
lyuse cleanin gagen tsor cle anin gclo ths
whic hare suitable forplast iclight lenses .
Un suit able cleanin gagen tsor cle anin gclo ths
coul dsc rat ch ordamag eth eplast iclight len-
ses .
X Clean theplast iclen ses oftheex terior light s
wit hawet spon geand amild cleanin gagen t,
e.g .Mer cedes-Ben zcar sham pooorcle anin g
clo ths.
Clean ingthemir ror turn signa ls !
On
lyuse cleanin gagen tsor cle anin gclo ths
th at are suit able forplast iclen ses .Un suit able
cle anin gagen tsor cle anin gclo thscoul d
sc rat ch ordamag eth eplast iclen ses ofthe
mir ror turnsign als. X
Clean theplast iclen ses ofthemir ror turnsig-
nals intheex terior mirror hous ingusin gawet
spon geand mild cleanin gagen t,e.g .
Mer cedes-Ben zcar sham pooorcle anin g
clo ths.
Clean ingthesensor s !
If
you clean thesen sorswit hapower
washe r,mak esure that you keep adist ance
of at least 11.8in(30 cm)be tweenthe vehicle
and thepower washer nozzle. Infor mat ion
about thecor rectdist anceis availabl efrom
th eequipm entman ufacturer. X
Clean sensors0043 ofthedriv ingsyst ems with
wate r,car sham pooandasof tclo th.
Cleani ngtherea rview camera !
Do
notcle an thecam eralensand thearea
aroun dth erear view camerawith apower
washer . Car
e
269Maintenance andcare Z