2019 MERCEDES-BENZ CLA COUPE low oil pressure

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

X
Make surethatthevehicle isat astandstill
and theSmartK eyisin position 0048inthe igni-
tion lock.
X Open thecamera coverforcleaning viathe
multimedia system(seeDigital Operator's
Manual).
X To clean therear view camera: useclear
water andasoft cloth toclean camera
lens 0043.
Cleanin gthe exhaust pipes G
WARNING
The exhaust tailpipe andtailpipe trimcan
become veryhot.Ifyou come intocontact
with these partsofthe vehicle, youcould burn
yourself. Thereisarisk ofinjury.
Always beparticularly carefularound the
exhaust tailpipe andthetailpipe trim. Allow
these componen tsto cool down before touch-
ing them.
! Do
not clean theexhaust pipewithacid-
based cleaning agents,suchasbathroom
cleaner orwheel cleaner.
! Mercedes-AMG
vehicleswithblack exhaust
pipes: theblack-chr ometailpipe finishers
should notbepolished withachrome polish.
They willotherwise losetheir black sheen. For
optimal care,thefaceplates shouldberubbed
with alightly oiledcloth afterevery carwash.
Commercially availableengine andcare oils
are suitable forthis.
For heavier soiling,youcan apply afine paint-
work polish withamicrofiber cloth.Remove
the excess polishresidue afterpolishing.
Impurities combinedwiththeeffect sof road grit
and corrosive environmentalfactors maycause
flash rusttoform onthe surface. Youcan
restore theoriginal shineofthe exhaust pipeby
cleaning itregularly ,especially inwinter and
after washing.
X Clean theexhaust pipewithacare product
tested andapproved byMercedes-Ben z. Interior
care
Cleanin gthe display !
For
cleaning, donot use anyofthe following:
R alcohol-based thinneror gasoline
R abrasive cleaningagents
R commerc ially-availabl ehousehold cleaning
agents
These maydamage thedisplay surface. Do
not putpressure onthe display surface when
cleaning. Thiscould leadtoirreparable dam-
age tothe display .
X Before cleaning thedisplay ,make surethatit
is switched offand hascooled down.
X Clean thedisplay surface usingacommer-
cially availa blemicrofiber clothandTFT/LCD
display cleaner.
X Dry thedisplay surface usingadry microfiber
cloth.
Cleanin gthe plastic trim G
WARNING
Care products andcleaning agentscontaining
solvents causesurfaces inthe cock pitto
become porous.Asaresult, plastic partsmay
come looseinthe event ofair bag deploy -
ment. Thereisarisk ofinjury.
Do not use anycare products andcleaning
agents toclean thecock pit.
! Never
attach thefollowing toplastic surfa-
ces:
R stick ers
R films
R perfume oilcont ainer orsimilar
You could otherwise damagetheplastic.
! Do
not allow cosmetic s,insect repellent or
sunscreen tocome intocont actwith theplas-
tic trim. Thismaintains thehigh-quali tylook of
the surfaces.
X Wipe theplastic trimwith adamp, lint-free
cloth, e.g.amicrofiber cloth.
X Heavy soiling:use care andcleaning prod-
ucts recommen dedandapproved by
Mercedes-Ben z.
The surface maychange colortemporarily.
Wait untilthesurface isdry again. 270
CareMaintenance
andcare

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

bolts
tocome loose. Asaresult, youcould
lose awheel whiledriving .There isarisk of
acciden t.
Never oilorgrease wheelbolts.Inthe event of
damage tothe threads, contact aqualified
specialist workshopimmediately. Havethe
damaged wheelboltsorhub threads
replaced/r enewed.Donot continue driving . G
WARN
ING
If you tight enthe wheel boltsorwheel nuts
when thevehicle israised, thejack could tip
over. There isarisk ofinjury.
Only tightenthe wheel boltsorwheel nuts
when thevehicle ison the ground.
Always payattention tothe instruct ions and
safety notesinthe "Changing awheel" section
(Y page 310).
Only usewheel boltsthathave been designed
for the wheel andthevehicle. Forsafety rea-
sons, Mercedes -Benzrecom mends thatyou
only usewheel boltswhich havebeen approved
for Mercedes -Benzvehicles andtherespect ive
wheel.
! To
preven tdamage tothe paintwor k,hold
the wheel securely againstthewheel hub
while screwin gin the first wheel bolt. X
Clean thewheel andwheel hubcontact sur-
faces.
X Place thenew wheel onthe wheel huband
push iton.
X Tighten thewheel boltsuntiltheyarefinger -
tight . Lowering
thevehicle G
WARN
ING
The wheels couldworkloose ifthe wheel nuts
and bolts arenot tight ened tothe specified
tight eningtorque. Thereisarisk ofacciden t.
Have thetight eningtorque immediately
chec kedataqualified specialist workshop
after awheel ischang ed.
X Place theratc hetwrenc hont othe hexagon
nut ofthe jack sothat theletters ABare visi-
ble.
X Turn theratc hetwrenc huntil thevehicle is
onc eagain standing firmly onthe ground.
X Place thejack toone side. X
Tighten thewheel boltsevenly inacros swise
patte rninthe sequence indicated(0043 to0083).
The specified tighteningtorque is96 lb-ft
(130 Nm).
X Turn thejack back toits initial position .
X Stow the jack andtherest ofthe vehicle tools
in the vehicle again.
X Mercedes-
AMGvehicles andvehicles
with AMG Line: usethecover ofthe outer sill.
X Check thetire pressure ofthe newly mount ed
wheel andadjust itifnec essary.
Observe therecom mended tirepressure
(Y page 293).
Canad aonly: aslong asyou aredriving withthe
emergen cyspare wheel mounted,the tire pres-
sure losswarning systemcannotfunc tion relia-
bly. Only restartthe tire pressure losswarning
system whenthedefect ivewheel hasbeen
replaced withanew wheel.
Vehicles withtirepr essure monitor (USA
only): allmount edwheels mustbeequipped
with functioningsensor s. 314
Changing
awheelWheels andtires