2021 MERCEDES-BENZ C-CLASS CABRIOLET tire size

Cha
nging awheel No
teson selecting, installing andreplac ing
tir es *
NO
TEMercede s-AMG vehicles #
Obser vetheno tesin theSupplement .
Yo uco uld other wise failto recogni ze
da ngers. &
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. #
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 &
WARNIN GRisk ofinju rythro ugh exceed‐
ing thespecif iedtireload-bear ingcapa‐
city ortheper missible speedrating
Ex cee ding thespecif iedtireload rating or
th eper missible speedrating mayle ad totire
da ma geand tothetir es bur sting. #
Ther efor e, onl yuse tiretypes andsizes
appr ovedfo ryo ur vehicle model. #
Obser vethetir eload rating andspee d
ra ting requ ired foryo ur vehicle. *
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
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, consumption, etc.
ma yot her wise beadv ersely affect ed. Fur‐
th er mor e,other tiresizes could result inthe
tir es rubbing agains tth ebody andaxle com‐
ponen tswhen loaded. Thiscould result in
damag eto thetir eor theve hicle. 37
4
Wheels andtires

of
skidding andhydroplaning 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. #
Switc hon theES P®
and adap tyo ur
dr ivin gst yle accor dingly. #
Use 004D M+Stires atoutside temp er‐
atur esofless than 50 °F(10 °C) . #
Onlyuse thetir es forth eir intended pur‐
pose. Obser
vethefo llo wing when selecting,ins talling
and replacing tires:
R Further mor e,theuse ofcer tain tiretypes in
cer tain regions andareas ofoper ation can
be highl ybenef icial.
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 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 ked004D M+S
fo rall whee ls.
Wi nter tires prov ide thebes tpossible grip in
wintr yro ad con dition s.
R ForM+S tires, only usetires wit hth esame
tr ead.
R Obser vethemaximum permissible speedfor
th eM+S tires installed.
If th etir e's maximum speedisbelo wthat of
th eve hicle, this mus tbe indic ated byan
appr opriatelabel inthedr iver's field of
vision.
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-f lat 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‐
ta ct aqu alif ied spec ialistwo rkshop.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page355)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page36 2)
R Tire size designation, load-bearing cap acity,
spe edrating andload index(/ pag e369)
R Tire pressur eta ble (/ page35 7)
R Noteson theemer gency sparewheel
(/ page38 3) 37
6
Wheels andtires

No
teson rotat ing whee ls &
WARNIN GRisk ofinju rythro ugh differ‐
ent whee lsizes
Rot atin gth efront and rear wheels can
se verely im pa irth edr iving charact eristic s.
The wheel brak es orsuspe nsion com ponents
ma yalso bedamag ed. #
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 thetir eshoulder
R Rear wheels wearmor ein thecent erofthe
tir e
Do notdr ive wi th tires that have toolittle tread
dep th.Thi ssig nifica ntlyre duces traction onwet
ro ads (hydr oplan ing).
On vehicles that have thesame sizefront and
re ar wheels ,ro tate thewheels accordingtothe
int erva ls in thetir emanuf acturer'swarrant y book
inyour vehicle documents. Ifth is isno t
av ailable, rotate thetir es every
3000 to6000 miles(500 0to 10,000 km),
dependin gon thewe ar.En sur eth at thedir ect ion
of rotatio nis ma intained .
Ob serveth eins truction sand safetyno teson
"Cha nging awheel" whendoing so
(/ page37 8). 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 *
NO
TEMercede s-AMG vehicles #
Obser vetheno tesin theSupplement .
Yo uco uld other wise failto recogni ze
da ngers. 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 hangi ng
to ols arere qu ired and appr oved forper form ing a
wheel chang eon your vehicle, consult aqu alif ied
spec ialistwo rkshop.
Yo ure qu ire th efo llo wing tools, forex am ple, 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 . Wheels
andtires 37
7

#
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. #
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat ed1 to5 with
an init ialmax imum forc eof 59 lb-ft(80 Nm). #
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat ed1 to5 to
th especif iedtight ening torq ue of96 lb-ft
(1 30 Nm) . &
WARNIN GRisk ofacci dent dueto inc or‐
re ct tigh tening torq ue
Th ewh eelscou ldcome looseifth ewheel
bolts orwheel nutsareno ttight ened tothe
pr escr ibed torq ue. #
Ensu rethat thewheel boltsorwheel
nuts aretight ened tothepr escr ibed
tight ening torq ue. #
Ifyo uar eno tsur e,do notmo vethe
ve hicle. Contactaqu alif ied spec ialist
wo rkshop andhave thetight ening tor‐
qu ech eckedimmediat ely. #
Chec kth etir epr essur eof thene wlyins talled
wheel andadjus tit ifnec essar y. #
Vehicl eswith tirepr ess urelos swa rning
sy stem: Restar tth etir epr essur eloss warn‐
ing system (/ page36 1).
Ex cep tion: thene wwheel isan emer gency
spa rewheel. #
Vehicl eswith atir epr ess uremonit oring
sy stem: Restar tth etir epr essur emonit oring
sy stem (/ page360).
Ex cep tion: thene wwheel isan emer gency
spa rewheel. Emer
gency spar ewheel No
teson theemer gency spar ewheel &
WARNIN GRisk ofacci dent caused by
inc orrect whe eland tiredimensi ons
The wheelor tiresize andthetir etype ofthe
emer gency sparewheel orspar ewheel and
th ewheel tobe replaced maydif fer. The
emer gency sparewheel orspar ewheel can
sign ifican tly im pair drivin gch aract eristic sof
th eve hicle.
To preve nthazardous situa tions: #
Adaptyo ur drivin gst yle accor dinglyand
dr ive car efull y. Wheels
andtires 383

#
Neverins tallmor eth an oneemer gency
spa rewheel orspar ewheel that dif fers
in size . #
Onlyuse anemer gency sparewheel or
spar ewheel ofadif fere nt size briefly. #
Donotsw itchof fESP ®
. #
Have theemer gency sparewheel or
spar ewheel ofadif fere nt size replaced
at thenear estqu alif ied spec ialistwo rk‐
shop. Thenewwheel mustha ve the
cor rect dimensi ons. %
The eme rgency sparewheel issec ured inthe
emer gency sparewheel baginthetrunk .
Obser vethefo llo wing noteson installing an
emer gency sparewheel:
R Chec kth etir epr essur eof theemer gency
spa rewheel installed. Correct thepr essur e
as neces sary.
R The maximum permissible speedwithan
emer gency sparewheel installed is50 mph
(80 km/ h). R
Donoteq uip theemer gency sparewheel
wit hsn ow chains .
R Replace theemer gency sparewheel afte rsix
ye arsat thelat est,re ga rdless ofwe ar.
% Ve
hicl eswith atir epr ess urelos swa rn‐
ing system: Ifan emer gency sparewheel is
ins talled thetir epr essur eloss warning sys‐
te m canno tfunction reliabl y.Onl yre star tth e
sy stem again when theemer gency spare
wheel hasbeen replaced withane wwheel.
Ve hicl eswith atir epr ess uremonit oring
sy stem: Ifan emer gency sparewheel is
ins talled thetir epr essur emonit oring system
cann otfunction reliabl y.Fo ra fe w min utes
af te ran emer gency sparewheel isins talled,
th esy stem mayst ill displa yth etir epr essur e
of there mo vedwheel. Onlyre star tth esy s‐
te m again when theemer gency sparewheel
has been replaced withane wwheel.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page355)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page36 2) R
Tire pressur eta ble (/ page35 7)
R Noteson installing tires (/ page37 4) 38
4
Whee lsand tires

Size
designation (tires) ............................. 369
Smar tKey
Ac ous ticlocking verificati onsignal ......... 64
Batt er<005C001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> ................65
Ener gyconsu mption............ .................... 64
Fe atur es................ .................................. 63
Ke yring attachme nt.... <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ...65
Mec hanica lke y......... ...............................65
Ov erview <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 63
Pa nic alar <0050001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .....64
Pr oblem. .................................................. 66
Un loc kin gse tting.... ................................ 64
Smar tKey functio ns
Deactiv ating............................................ 64
Smar tphone
see Andr oidAuto
see Apple CarPla y®
see Mercedes-Benz Link
see Telephon e
Sno wch ains.. ............................................355
Soc ket(1 2 V)
Fr ont cent erconsole ............................. 104
Tr unk /cargo comp artm ent.. .................. 104 Sof
tto p
Car e................................................... ... 327
Closin g(sof t-to pswitc h).................. ........ 72
Closin gusin gth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 81
Opening (soft-top switc h)........................ 72
Opening withth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 80
Pr obl <0048005000110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 78
Re loc kin g... ..............................................7 4
Sof t-top switc h............................................ 72
Sof twareupda te
Pe rfor ming.... ........................................2 39
Sof twareupd ates..... .............................238
Sy stem updat es..................................... 239
Sound PRE-S AFE®
Sound. ..................................5 0
Wheels andtires .................................... 354
Sound see Burmes ter®
sur round soun dsy stem
see Sound settings
Sound settings
Ad jus ting thebalance/f ader............ ...... 313
Ad jus ting treb le,mid -rang eand bass
se tting s.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 313
Au tomatic volume adjustment. ........ ...... 313 Calls
upthesound menu....................... 313
Inf ormation ............................................ 313
Spar ewheel
see Emer gency sparewheel
Specia lseat beltretract or........ <0011001100110011001100110011001100110011001100110011001100110011
00110011> 55
Spe ciali st wo rkshop .................................... 27
Speec hdialog system
see Voice Cont rolSy stem
Speed index(tir es). ................................... 369
St andb ymode
Ac tivati ng/d eactiv ating........... ..............150
Fu nctio n.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 149
St anding lights........ .................................. 108
St art-of fassi st
see Optimized acceleration
St art/s topbutt on
Pa rking theve hicle.... ............................1 43
St artin gth eve hicle.... ........................... 125
Swi tching onthepo we rsupp lyor
ignitio n...................................................124
St art/s topfunc tion
see ECOstar t/ stop funct ion 488
Index

Dr
afts............ ............ ............................278
No tes... ............................................. ..... 277
Op tions.. ................................................ 278
Outbo x...................................................2 78
Re ad-al oudfunction .............................. 277
Re adin g.................................................2 77
Re plying .................................................2 78
Sendi <0051004A00110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 277
Vo ice com mand s(V oice ControlSy s‐
te m)....... ................................................ 216
Thr oug h-loadin gfe atur e
see Seat
Ti me
Manual timesettin g...............................2 31
Se tting summer time<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 230
Se tting thetime anddateaut omati‐
call y.... ................................................... 230
Se tting thetime zone.<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 230
Se tting thetime/ datefo rm at... .............2 31
TIN (TireIde ntificat ion Numbe r).............. 367
Tir eand Loadi ng Info rm ation placar d.....362
Ti re charact eristics ....... ............................ 369
Ti re inf lation com pressor
see TIREF ITkit Ti
re informa tion table.. .............................3 62
Ti re labeling
Char acteristic s.................................. .... 369
DO T,Tire Identif ication Number (TIN).... 367
Load index.............................................3 69
Load -bearing cap acity<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> .369
Maxi mum tireloa d... ....... ..................... .368
Maxi mum tirepr essu re<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 368
Ov ervie <005A001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 366
Spee dra ting ........... ............................... 369
Te mp eratur egr ade ................................ 366
Ti re Qua lityGradi ng.......... .................... .366
Ti re size designation. ........................ ..... 369
Tr act ion grade .................................. .....3 66
Tr ead weargrade .............................. .....3 66
Ti re load (maximu m)................................. 368
Ti re pres sur e
Ch ecking (manua<004F004F005C000C001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> ......358
Ch ecking (tirepr ess uremoni toring
sy stem).. .......................................... ..... 360
Maximum ..............................................3 68
No tes... ............................................. ....3 55
Re star tin gth etir epr essur eloss
wa rning system.. .............................. ...... 361 Re
star tin gth etir epr essur emonit or‐
ing system.. ...........................................3 60
Ti re pressur eloss warning system
(funct ion)............................................... 361
Ti re pressur emonit oring system
(funct ion)............................................... 358
Ti re pressur eta ble ................................ 357
TIREF ITkit.. ...........................................3 36
Ti re pres sur elo ss wa rning system
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 361
Re star tin g..............................................3 61
Ti re pres sur emoni tor
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 358
Re star tin g.............................................. 360
Ti re pres sur emoni toring system
Chec kingth etir epr essur e.................... 360
Chec kingthetir ete mp eratur e..............3 60
Ti re pres sur etab le<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> ...357
Tir eQual ityGradin g<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> .366
Ti re temp eratur e
Chec king(tir epr essur emon itor ing
sy stem).. ............................................... 360
Ti re pressur emonit oring system
(funct ion)............................................... 358 Inde
x49
1

Ti
re tread <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>.......354
Tir e-c hang eto ol kit
Ov ervie w............................................... 377
TIRE FITkit
St or ag elocation... ................................. 336
Using.. ...... ....................................... ...... 336
Ti re s
Chan ginghub caps ................................ 378
Charact eristic s................................. .....3 69
Che cking.. .............................................3 54
Chec kingth etir epr essur e(manuall y)... 358
Chec kingthetir epr essur e(tir epr es‐
sur emonit oring system).. ......................3 60
Def initio ns............. ............................ .... 371
DO T,Tire Identif ication Number (TIN).... 367
Flat tire...... ............................................ 334
Ins talling. ...............................................3 81
Load index.............................................3 69
Load -bearing cap acity<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ..369
Ma ximu mtirelo<0044004700110011001100110011001100110011001100110011001100110011
0011> <0011001100110011001100110011001100110011001100110011001100110011
0011> 368
Ma ximu mtirepr ess ur<0048001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 368
MOExt endedtires <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .........335
Noise <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ....354
No teson installing. ................................ 374
Ov ervie wof tirelabel ing........................ 366 Re
mo ving... ............................................ 381
Re placing .......................................3 74,37 8
Re star tin gth etir epr essur eloss
wa rning system.. .............................. ...... 361
Re star tin gth etir epr essur emonit or‐
ing system.. ...........................................3 60
Ro tating ........... ................................. .....377
Sel ectio <0051001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 374
Sno wch ains .......................................... 355
Spe edrating ........... ............................... 369
St or ing.... .......................................... ..... 377
Te mp eratur egr ade ................................ 366
Ti re and Loadi ngInfo rm atio nplacar d....3 62
Ti re pressur e(no tes). ........................ ....3 55
Ti re pressur eloss warning system
(funct ion)............................................... 361
Ti re pressur emonit oring system
(funct ion)............................................... 358
Ti re pressur eta ble ............................ .... 357
Ti re Qua lityGradi ng.......... .................... .366
Ti re size designation. ........................ ..... 369
TIREFIT kit............................................. 336
Tr act ion grade .................................. .....3 66
Tr ead weargrade .............................. .....3 66
Un usual handlingch aract eristic s.......... 354 To
ol
see Vehicle tool kit
To pTe ther.. .................................................. 58
To uc hCon trol
On-board computer........ ....................... 202
Oper ating.......... .................................... 221
Se tting thesensit ivity............................2 22
To uc hpad
Ac tivati ng/d eactiv ating haptic oper‐
ation feedbac k.... ................................... 224
Oper ating. ............................................. 222
Re adin gth ehandwr itingrecogni tion
al ou d.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 223
Sel ecti ngast atio nand track.................2 24
Se tting thesensit ivity............................2 23
Switc hingon/of f.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 222
To w- bar system.. .......................................1 99
To w- star ting.............. ................................. 350
To wing away<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 347
To wing eye
Ins talling. ...............................................3 50
St or ag elocation... ................................. 350
To wing methods ........................................ 346 492
Inde x