MERCEDES-BENZ C-CLASS CABRIOLET 2019 Owner's Manual

Tr
actio n:traction isthegr ip resulting from fric‐
tion between thetir es and thero ad sur face.
We arindi cator:nar row bars(tr ead wearbar s)
th at aredis tribut edove rth etir econ tact surface.
If th etir etread isleve lwit hth ebar s,thewe ar
limit of1/ 16 in(1.6 mm) hasbeen reac hed.
Dis tribut ionofvehicl eoc cupants: distribu tion
of vehicle occupants overdesi gnat edseat posi‐
tions inave hicle.
Maximum permissible payload weight :nom i‐
nal load andluggageload plus150lb (68 kg)
multip liedby thenumber ofseats intheve hicle. Changing
awheel No
teson selecting, installing andreplac ing
tir es Mer
cedes -AMG vehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yno tre cog‐
nize dangers.
Yo ucan askforinf ormation rega rding permitted
wheel/ tirecom binat ionsatan aut hor ized
Mer cede s-Ben zCent er. 000A
WARNIN GRisk ofacci dent dueto inc or‐
re ct dimensi onsofwhe elsand tires
If whe elsand tires ofthewr ong size are
ins talled, thewheel brak es orwheel suspen‐
sion componen tsma ybe damag ed. 0007
Alw aysre place wheels andtires wit h
th ose that fulf illthespecif ication sof
th eor iginal part.
When replacing wheels, makesur eto fit th e
cor rect:
R Desi gnati on
R Mod el
Whe nre placing tires, mak esur eto ins tallth e
cor rect:
R Desi gnati on
R Manuf actu rer
R Model 000A
WARNIN GRisk ofinju rythro ugh exceed‐
ing thespecif iedtireload rating orthe
per missible speedrating
Ex cee ding thespecif iedtireload rating or
th eper missible speedrating mayle ad totire
da ma geand tothetir es bur sting. 0007
Ther efor e, onl yuse tiretypes andsizes
appr ovedfo ryo ur vehicle model. 0007
Obser vethetir eload rating andspee d
ra ting requ ired foryo ur vehicle. 000E
NO
TEVehicle andtiredamag eth ro ugh
tir etyp esand sizes that have notbe en
ap prove d Fo
rsaf etyre ason s,on lyuse tires, wheel s
and accessories whic hha ve been speciall y
appr ovedby Mer cedes-Ben zfo ryo ur vehicle.
These tires arespecially adaptedto thecon ‐
tr ol systems, suchas ABS ,ES P®
and
4MA TIC,andmarkedas follo ws :
R MO =Mer cedes-Ben zOr iginal Wheels
andtires 399

R
MOE =Mer cedes-Ben zOr iginal Extended
(r un-f lattireonl yfo rcer tain wheels)
R MO1 =Mer cedes -Benz Original (onlycer ‐
ta in AMG tires)
Cer tain charact eristic s,suc has han dling,
ve hicle noise emissions, fuelconsum ption,
et c. ma yot her wise beadv ersely affect ed.
Fu rther mor e,other tiresizes could result in
th etir es rubbing agains tth ebody andaxle
com ponen tswhen loaded. Thiscould result
in damag eto thetir eor theve hicle.
Onl yuse tires, wheels andaccessor iesthat
ha ve been checkedand recomme ndedby
Mer cedes-Ben z. 000E
NO
TERisk todriving safetyfrom retrea ‐
de dtir es Re
trea de dtir es arenei ther tested nor recom‐
mend edbyMer cedes-Ben z,since prev ious
damag ecan notalw aysbe detected on
re trea de dtir es .
Fo rth is reason drivin gsaf etycan notbe guar ‐
ant eed. 0007
Donotuse used tire sif yo uha ve no
inf orma tionab ou tth eir prev ious usage. 000E
NO
TEPossible damag eto wheels ortires
when drivin gove robs tacle s Larg
ewhe elsha ve alowe rtir esection width.
The lowe rth etir esect ionwidt h,thegr eat er
is therisk ofdamag eto wheels ortires when
dr ivin gove robs tacle s. 0007
Avoid obstacle sor drive pa rticular ly
car efu lly. 000E
NO
TEDama getoelectr oniccomponen t
par tsfrom theuse oftire-moun tingtools Ve
hicl eswith atir epr ess uremonit oring
sy stem: Electronic component partsare
locat edinthewheel. Tire -mou nting tools
should notbe used inthear ea oftheva lve.
This could other wise damag eth eelectr onic
com ponen tpar ts. 0007
Have thetir es chang edataqu alif ied
spec ialistwo rkshop only. 000E
NO
TEDama getosummer tires atlow
ambient temp eratur es At
low ambien tte mp eratur es,tear scoul d
fo rm when drivin gwit hsumm ertires, caus‐
ing perman entdamag eto thetir es. 0007
Attemp eratur esbelo w45 °F(7°C),
use M+S tires . Ac
cess orypa rts th at areno tappr ovedfo ryo ur
ve hicle byMer cedes-Ben zor areno tbeing used
cor rectl ycan impairth eoper ating safety.
Bef orepu rchasing andusing non-appr oved
acc esso ries, visit aqu alif ied spec ialistwo rkshop
and inquireabout :
R Suit ability
R Leg alstipulation s
R Factor yre comme ndations 000A
WARNIN GRisk ofacci dent with high
per form anc etir es
The spec ialtiretread incom binatio nwit hth e
op timized tirecom pound means that therisk 400
Wheels andtires

of
skidding orhydroplaning onwetro ads is
inc reased.
In addit ion,th etir egr ip isgreatl yre duced at
a low outside temp eratur eand tireru nning
te mp eratur e. 0007
Switc hon theES P®
and adap tyo ur
dr ivin gst yle accor dingly. 0007
Use M+S tireat outside temp eratur es
of less than 10 °C (50 °F). Obser
vethefo llo wing when selecting,ins talling
and replacing tires:
R Onlyuse tires and wheels ofthesame type
(summer tires, wint ertires, MOEx tende d
tir es) and thesame make.
R Onlyins tallwheels ofthesame sizeonone
axle (leftand right).
It is onl yper missible toins talla dif fere nt
wh eelsi ze intheeve ntofaflat tirein order
to drive to thespecialis two rkshop.
R Onlyins talltir es ofthecor rect size ontoth e
wheels. R
Vehicl eswith atir epr ess uremonit oring
sy stem: Allinstalled wheels mustbe equip‐
ped withfunc tioningsensorsfo rth etir e
pr essur emonit oring system.
R Attemp eratur esbelo w45 °F(7°C), usewin‐
te rtir es orall-seaso ntir es mar kedM+S for
all wheels .
Wi nter tires bearing the004D snowflak esym‐
bol inaddition totheM+S marking prov ide
th ebes tpossible grip inwintr yro ad con di‐
tio ns.
R ForM+S tires, only usetires wit hth esame
tr ead.
R Obser vethemaximum permissible speedfor
th eM+S tires installed.
If th is isbelo wtheve hicle's maximum speed,
th is mus tbe indic ated byan appr opriate
label inthedr iver's field ofvision.
R Break inne wtires atmoder atespeeds for
th efirs t60 miles(1 00 km) .
R Replace thetir es afte rsix yearsat thelat est,
re ga rdless ofwe ar. R
Wh enreplac ingwith tires that donotfe a‐
tur eru n-flat charact eristics :ve hicles with
MOExt ended tires areno teq uipped witha
TIREFIT kitatthefa ct or y. Eq uip th eve hicle
wit haTIREFIT kitafte rre placing withtir es
th at do notfe atur eru n-f latch aract eristic s,
e.g .wint ertires.
Fo rmor einf ormation onwhee lsand tires, con‐
tac ta qu alif ied spec ialistwo rkshop.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(0013 page380)
R Tire and Loadi ngInfo rm atio nplacar d
(0013 page38 7)
R Tire size designation, load-bearing cap acity,
spe edrating andload index
( 0013 page39 4)
R Tire pressur eta ble (0013 page38 1) Wheels
andtires 40
1

No
teson rotat ing whee ls 000A
WARNIN GRisk ofinju rythro ugh differ‐
ent whee lsizes
Int erch ang ingthefront and rear wheels ifth e
wheels ortires have differe nt dimens ions
ma yse verely im pa irth edr iving charact eris‐
tic s.
The wheel brak es orwheel suspension com ‐
pon entsma yalso bedamag ed. 0007
Rotate front and rear wheels onlyifth e
wheels andtires areof thesame dimen‐
sions. The
wearpat tern son thefront and rear wheels
dif fer:
R Front wheels wearmor eon theshoulder of
th etir e
R Rear wheels wearmor ein thecent erofthe
tir e
On vehicles that have thesame sizefront and
re ar wheels ,ro tat eth ewheels accordingtothe
int erva ls in thetir emanuf acturer'swarrant y book
inyour vehicle documents. Ifth is is no t
av ailable, rotate thetir es every
3,000 to6,000 miles(5 ,000 to10,000 km),
dependin gon thewe ar.En sur eth at thedir ect ion
of rotatio nis ma intained .
It is im pe rativ eto obser vetheins truction sand
saf etyno teson "Cha nging awheel" whendoing
so Prepar ingtheve hicle fora whee l
ch ang e(0013 page40 3). No
teson sto ring wheels When
stor ing wheels, observethefo llo wing
no tes:
R Afterre mo ving whee ls,stor eth em inacool,
dr yand prefer ably darkplace.
R Protect thetir es from contact with oil, grease
or fuel. Ov
ervie wof thetir e-c han getool kit Mer
cedes- AMGvehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yfa ilto rec‐
ogni zedangers. Apa
rtfrom some countr y-specif icvariant s,vehi‐
cles areno teq uipped withatir e-c hang eto ol kit.
Fo rmor einf ormation onwhi chtire-c hangeto ols
ar ere qu ired and appr ovedfo rper form ing a
wheel chang eon your vehicle, consult aqu alif ied
spec ialistwo rkshop.
Yo ure qu ire th efo llo wing tools, forins tance, to
ch ang eawheel:
R Jack
R Choc k
R Lugwr enc h
R Alignmen tbolt
The tire-c hang eto ol kit islocat edintool bag 1
in thetrunk . 402
Wheels andtires

1
Tool bag
To ol bag 1cont ains:
R Jack
R Gloves
R Lugwr enc h
R Alignmen tbolt
R Folding choc k
R Ratche tfo rjac k Se
tting upthefo lding chock Pr
epa ring theve hicl efo ra wh eelch ang e Re
quirement s:
R The requ ired tire-c hang eto ol isavailable. If
yo ur vehicle isno teq uipped withth etir e-
ch ang eto ol kit, consult aqu alif ied spec ialist
wo rkshop tofind outab ou tsu itab letools. R
The vehicle isno ton aslope.
R The vehicle ison solid, non-slipper yand leve l
gr ou nd . 0007
Apply theelectr icpar king brak emanually . 0007
Movethefront wheels tothest ra ight -ahead
posit ion. 0007
Vehicl eswith automatic transmiss ion:
Shif tint oposi tion 005D. 0007
Vehicl eswith leve lcontr olsystem: Setth e
nor malve hicle leve l(0013 page18 4). 0007
Swi tchof fth eengine. 0007
Mak esur eth at theengine cannotbe star ted. 0007
Place choc ks orother suitable items under
th efront and rear ofthewheel that isdiago‐
nall yoppos ite th ewheel youwish tochang e. 0007
Remo vethehub caps ifneces sary
(0013 page404). 0007
Raise theve hicle (0013 page404). Wheels
andtires 403

Re
mo ving and inst alli ng hub caps Re
quirement s:
R The vehicle isprepar edfora whee lch ang e
(0013 page40 3).
Pla stic hub cap 0007
Toremo ve:tur nth ecent ercoverof thehub
cap count er-cloc kwise andremo vethehub
cap. 0007
Toins tall: makesur eth at thecent ercoverof
th ehub capistur ned count er-cloc kwise. 0007
Position thehub capand turnth ecent er
co vercloc kwise untilthehub capengages
ph ysicall yand audibly . Alum
inum hubcap 0007
Toremo ve:po sitio nsoc ket2 onhubcap
1.
0009 The socketcan befound inthetir e-c hang e
to ol kit. 0007
Position wheel wrenc h3 onsoc ket2. 0007
Usingwheelwr enc h3, turnhu bcap 1
cou nter-clo ckwise andremo veit. 0007
Toins tall: posit ionhub cap1and turnunt il
it is com pletely flush withth ewheel. 0007
Position socket2 onhubcap 1. 0007
Attach wheel wrenc h3 tosoc ket2 and
tig hten thehub capclockwise.
Specif iedtight ening torq ue: 18lb-f t
(25 Nm). Ra
ising theve hicl ewhe nch angi ngawhe el Re
quirement s:
R Ther ear eno per sons intheve hicle.
R The vehicle hasbeen prepar edfora whee l
ch ang e(0013 page40 3).
R The hub caps have been remo ved
( 0013 page404 ).
Im por tant noteson using thejac k:
R Use onlyth eve hicle-specif icjac kth at has
been tested and appr ovedby Mer cedes-Ben z
to raise theve hicle.
R The jackis onl ydesigned forra ising and
holdin gth eve hicle fora shor ttime whilea
whee lis being chang edand notfo rmaint e‐
nance workund ertheve hicle. 40
4
Wheels andtires

R
The jackmus tbe placed onafirm ,fl at and
no n-slip surface. Ifneces sary,use alar ge,
fl at, load- bearing,no n-slip unde rlay .
R The foot ofthejac kmus tbe position edverti‐
call yunder thejac ksuppor tpoint . Ru
les ofcon duct when theve hicle israised:
R Neverpla ceyour han dsorfeet und erthe
ve hicle.
R Neverlie under theve hicle.
R Donotst ar tth eengine anddonotre lease
th eelectr icpar king brak e.
R Donotopen orclose anydoor sor thetrunk
lid. 0007
Using thelug wrenc h,loosen thewheel bolts
on thewheel youwish tochang eby about
on efull turn.Do notuns crew thebolts com‐
ple tely. Po
sition ofjac ksuppor tpoints
Mer cedes- AMGvehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yfa ilto rec‐
ogni zedangers. 000A
WARNIN GRisk ofinju ryfrom incor rect
pos itioning ofthejac k
If yo udo notposi tionth ejac kcor rectly at
th eappr opriatejac king point oftheve hicle,
th ejac kcould tipwithth eve hicle raised. 0007
Onlyposit ionthejac kat theappr opri‐
at ejac king point oftheve hicle. The
base ofthejac kmus tbe position edver‐ Whee
lsand tires 405

tica
llyund erthejac king point ofthe
ve hicle. 000E
NO
TEVehicle damag efrom thejac k If
yo udo notposi tionth ejac kcor rectl yat
th eappr opriatejac ksuppor tpoint ofthe
ve hicle, thejac kcould tipove rwit hth eve hi‐
cle raised. 0007
The jackis design edexclu sively for
jac king uptheve hicle atthejac ksup‐
por tpoint s. 0007
Position jack2 atjac ksuppor tpoint 1. 0007
Turn crank 3cloc kwiseunti ljac k2 sits
com plet elyon jacksuppor tpoint 1and the
base ofthejac klies evenlyon thegr ound. 0007
Turn crank 3unti lth etir eis raised amaxi‐
mum of1.2 in (3 cm) from thegr ound. 0007
Loosen andremo vethewheel
(0013 page406). Re
mo ving awh eel Re
quirement s:
R The vehicle israised (0013 page404).
Mer cedes- AMGvehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yno tre cog‐
nize dangers.
Whe nch ang ingawheel, avoidappl ying anyfo rc e
to thebr ak ediscs, sincethis could impair the
le ve lof com fort when brakin g.
000E NO
TEDama getothre adin gfrom dirton
wheel bolts 0007
Donotplace wheel boltsin san dor on
a dir tysur face. 0007
Unscr ew theupper mostwheel boltcom‐
ple tely. 40
6
Wh eelsand tires

0007
Screw align mentbolt 1instead ofthe
wheel boltintoth eth re adin g. 0007
Unscr ew there maini ngwhee lbolts fully. 0007
Remo vethewheel. 0007
Installth ene wwheel (0013 page40 7). Mounting
ane wwheel Re
quirement s:
R The wheel isremo ved(0013 page406 ).
Mer cedes- AMGvehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yno tre cog‐
nize dangers. 000A
WARNIN GRisk ofacci dent from losing a
whe el
Oil ed, grea sed ordamag edwhe elbol t/whe el
nut thre ads orwheel hub/wheel mounting
bolt thre ads can caus eth ewheel bolts/
wheel nutstocome loose.
As are sult, youco uld lose awheel whiledriv‐
ing . 0007
Neveroil orgrease theth re ads. 0007
Intheeve ntofdama getotheth re ads,
con tact aqu alif ied spec ialistwo rkshop
immediat ely. 0007
Have thedamag edwheel boltsordam‐
ag ed hub thre ads replaced. 0007
Donotcon tinue driving. 0007
Obser vetheinf ormation onthech oice of
tir es (0013 page399).
Fo rtir es wit haspecif ieddirection ofrotatio n,an
ar row ontheside wallof thetir eindicat esthe
cor rect dire ction ofrotatio n.Ob serveth edir ec‐
tion ofrotatio nwh en installing. 0007
Slide thewheel tobe mount edont oth e
align mentbolt andpush iton . 000A
WARNIN GRisk ofinju ryfrom tight ening
whee lbol tsand nuts
If yo utig hten thewheel boltsorwheel nuts
when theve hicle israised, thejac kcould tip. 0007
Onlytight enwheel boltsorwheel nuts
when theve hicle ison thegr ound. 0007
Besureto obser vetheins truction sand
saf etyno teson "Cha nging awheel"
(0013 page399). 0007
Forsaf etyre ason s,on lyuse wheel bolts
whic hha ve been approvedby Mer cedes-
Benz andforth ewheel inqu estion .
000E NO
TEDama getopaintw orkof thewheel
ri m when screwing onthefirs twh eelbo lt If
th ewheel hastoomuc hpla ywhen screw‐
ing inthefirs twh eelbo lt, thewheel rim pai nt
can bedama ged. Wheels
andtires 40
7

0007
Press thewheel firm lyag ains tth e
wheel hubwhen screwing onthefirs t
wheel bolt. 0007
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat eduntil they are
fi ng er-tig ht. 0007
Unscr ew thealignment bolt. 0007
Tight enthelas twheel boltuntil itis fing er-
tig ht. 0007
Lowe rth eve hicle (0013 page408). Lo
we ring theve hicl eaf te ra wh eelch ang e Re
quirement s:
R The newwheel hasbeen installed
(0013 page40 7). 0007
Tolowe rthe vehicl e:tur nth ecr ank ofthe
jac kcou nter-clo ckwise untilth eve hicle is
once again standi ngfirm lyon thegr ound. 0007
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat ed(1 to5 ).
Specif iedtight ening torq ue: 96lb-ft
(1 30 Nm) . 000A
WARNIN GRisk ofinju rythro ugh incor‐
re ct tigh tening torq ue
Th ewh eelscou ldcome looseifth ewheel
bolts orwheel nutsareno ttight ened tothe
pr escr ibed tighteningto rq ue. 0007
Makesur eth ewheel boltsorwheel
nuts aretight ened tothepr escr ibed
tight ening torq ue. 0007
Ifyo uar eno tsur e,do notmo vethe
ve hicle. Consult aqu alif ied spec ialist
wo rkshop andhave thetight ening tor‐
qu ech eckedimmediat ely. 0007
Chec kth etir epr essur eof thene wlymoun‐
te dwheel andadjus taccor dingly. 0007
Vehicl eswith tirepr ess urelos swa rning
sy stem: Restar tth etir epr essur eloss warn‐
ing system (0013 page386). 0007
Vehicl eswith atir epr ess uremonit oring
sy stem: Restar tth etir epr essur emonit oring
sy stem (0013 page385).
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R Noteson tirepr essur e(0013 page380) 408
Wheels andtires