2021 MERCEDES-BENZ C CLASS tire size

th
ese areins talled ontheve hicle, butdoes not
include passeng ersor lugg age.
Maximum tireload: themaximum tireload is
th emaximum permissible weight inkilog rams or
lbs forwhi chatir eis appr oved.
Maxim umpermissible tirepr essur e:maxi‐
mum permissible tirepr essur efo rone tire.
Maximum loadonone tire: maximu mloa don
one tire. This iscalcu lated bydividing themaxi‐
mum axleload ofone axle bytwo.
PSI (pounds persquar ein ch ):standar dunit of
meas uremen tfo rtir epr essu re.
Aspe ctratio :ra tio betwee ntire height and tire
wi dthin pe rcent .
Ti re pres sur e:press ureinsi dethetir eappl ying
an outw ardfo rc eto eve rysquar einc hof thetir e.
The tirepr essur eis specif iedinpounds per
sq uar einc h(psi), inkilopascals (kPa)or inbar .
The tirepr essur eshould onlybe cor rected whe n
th etir es arecold.
Cold tirepr essur e:thetir es arecold when the
ve hicle hasbeen parkedfo rat lea st3hou rs wit
hout direct sunli ghtonthetir es ortheve hicle
has been driven forless than 1mile (1.6 km ).
Ti re contact surface: thepar tof thetir eth at
com esintocon tact with thero ad.
Ti re bead: thepur pose ofthetir ebead isto
ensur eth at thetir esits secur elyon thewheel
ri m. Ther ear ese veralwir ecor esinthetir ebead
to preve ntthetir efrom chang inglengthon the
wheel rim.
Side wall:thepar tof thetir ebe tween thetread
and thetir ebead.
We ight ofoptiona leq uipm ent:th ecombin ed
we ight oftheop tion aleq uipment weighin gmor e
th an there placed standar dpar tsand moreth an
5 lbs (2.3kg ).This optional equipment, suchas
high-per form anc ebr ak es, leve lcon trol system, a
ro of lugg agera ck orhigh-per form anc ebat teries,
is no tincluded inthecurb weight andthewe ight
of theaccessor ies.
TIN (Tire Identif ication Numbe r):auni que
ident ificat ion numb erwhic hcan beused bya
tir ema nuf actu rerto ident ifytires, forex am ple,
in apr oduc tre cal l,and thus iden tifyth epur‐
ch aser s.The TINismade upofthemanuf actur‐ er's
identit ycode, tiresize, tiretype code and
th emanuf acturingdate.
Load-bear inginde x:theload-bear inginde xis a
code that con tains themaximum load-bearing
capacity ofatir e.
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 over designat edseat posi‐
tion sin ave hicle.
Maximum permissible payload weight :nom i‐
nal load andluggageload plus150lb (68 kg)
multip liedby thenumber ofseats intheve hicle. 35
4
Wheels andtires

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. Wheels
andtires 355

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(/ page336)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page34 3)
R Tire size designation, load-bearing cap acity,
spe edrating andload index(/ pag e350)
R Tire pressur eta ble (/ page338)
R Noteson theemer gency sparewheel
(/ page36 4) Wheels
andtires 35
7

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
(/ page359). 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 edunder the
tr unk floor . 358
Wheels andtires

#
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 (/ page342).
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 (/ page34 1).
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. 36
4
Wheels andtires

#
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(/ page336)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page34 3) R
Tire pressur eta ble (/ page338)
R Noteson installing tires (/ page355 ) Wheels
andtires 365

Seat
beltwarning
see Seat belts
Seat belts
Ac tivati ng/d eactiv ating seat belt
ad jus tment ........... ...................................41
Ad jus ting theheight... ............................. 40
Cent errear seat (releasi ng).<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 39
Fa stening.. ............................................... 40
Re duced protect ion.. ...............................3 8
Re leasing .................................................4 1
Sea tbel tad jus tment (function) ............... 40
Wa rning lam p................................... ........ 41
Seat cover(C are)...... ............ ..................... 312
Seat heating
Ac tivati ng/d eactiv ating........... ................96
Se at ventilat ion
Ac tivati ng/d eactiv ating........... ................97
Second telephone
Conn ecting... .........................................2 59
Fe atur es................................................ 259
Select ingage ar
see Changing gears Select
orleve r
see DIRECT SELECTleve r
Self-t est
Au tomatic front pass engerfront air‐
bag shut off..... .........................................4 6
Sensor s(car e)............................................ 311
Ser vice center
see Qualif iedspecialis two rkshop
Ser vice interva ldisp lay
see ASSYST PLUS
Ser vice station search
St artin gaut omat icsear ch<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 242
Se tting aspeed
see Cruise control
Se tting summ ertime.... ............................2 22
Se tting theda te form at....... ..................... 223
Se tting thedis tance unit.......................... 226
Se tting thema pscale
see Map
Shif tpa dd les
see Steer ing wheel paddle shifters Shif
ting gears
Gea rshif tre comme nda<0057004C00520051001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 146
Shor tmessag es
see Text mes sage s
Side airbag.. .................................................4 1
Side impact protection. ............................ 197
Side windo ws
Child safetyloc kin there ar
passe nger com partment. ........................ 63
Closin g....................................................7 6
Closin gusin gth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 79
Co nvenienc eclosing featur e...................7 9
Con venie nce openi ng<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ......78
Opening... ................................................ 76
Opening withth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 78
Pr oblem. .................................................. 79
Ro ller sunblin d.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 84
Size designation (tires) ............................. 350
Sliding sunroof
Au tomatic featur es..................................8 2
Closin g....................................................8 0
Closin gusin gth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 79
Ope <0051004C0051004A001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 80
Ope ning with theSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 78 Inde
x465

Se
tting thetime zone.<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 222
Se tting thetime/ datefo rm at... .............2 23
TIN (TireIden tificati onNumbe r).............. 348
Tir eand Loadi ng Info rm ation placar d.....343
Ti re charact eristics ....... ............................ 350
Ti re inf lation com pressor
see TIREF ITkit
Ti re informa tion table.. .............................3 43
Ti re labeling
Char acteristic s.................................. .... 350
DO T,Tire Identif ication Number (TIN).... 348
Load index.............................................3 50
Load -bearing cap acity<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ..350
Ma ximu mtirelo<0044004700110011001100110011001100110011001100110011001100110011
0011> <0011001100110011001100110011001100110011001100110011001100110011
0011> 349
Ma ximu mtirepr ess ur<0048001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 349
Ov ervie <005A001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011>347
Spe edrating ........... ........... .................... 350
Te mp eratur egr ade ................................ 347
Ti re Qua lityGradi ng.......... .....................347
Ti re size designation. ............................. 350
Tr act ion grade .................................. .....3 47
Tr ead weargrade .............................. .....3 47
Ti re load (maximu m)................................. 349 Ti
re pres sur e
Ch ecking (manua<004F004F005C000C001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> ......339
Ch ecking (tirepr ess uremoni toring
sy stem).. .......................................... ...... 341
Maximum ..............................................3 49
No tes... ............................................. ....3 36
Re star tin gth etir epr essur eloss
wa rning system.. .............................. ..... 342
Re star tin gth etir epr essur emonit or‐
ing system.. ...........................................3 41
Ti re pressur eloss warning system
(funct ion)............................................... 342
Ti re pressur emonit oring system
(funct ion)............................................... 339
Ti re pressur eta ble ............................ .... 338
TIREF ITkit.. ............................................ 317
Ti re pres sur elo ss wa rning system
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011>342
Re star tin g........................................ ...... 342
Ti re pres sur emoni tor
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011>339
Re star tin g........................................ ...... 341
Ti re pres sur emoni toring system
Chec kingth etir epr essur e.................... 341
Chec kingthetir ete mp eratur e.......... ..... 341 Ti
re pres sur etab le<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> ...338
Tir eQual ityGradin g<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> .347
Ti re temp eratur e
Chec king(tir epr essur emon itor ing
sy stem).. ................................................ 341
Ti re pressur emonit oring system
(funct ion)............................................... 339
Ti re tread <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ....335
Tir e-c hang eto ol kit
Ov ervie w............................................... 358
TIR EFIT kit
St or ag elocation... ..................................3 17
Using... ..................................................3 17
Ti re s
Chan ginghub caps ................................ 359
Charact eristic s......................................3 50
Che cking.. .............................................3 35
Che cking thetir epr essur e(manuall y)... 339
Chec kingthetir epr essur e(tir epr es‐
sur emonit oring system).. ......................3 41
Def initio ns............ .................................352
DO T,Tire Identif ication Number (TIN).... 348
Flat tire...... ............................................ 315
Ins talling. ...............................................3 62 Inde
x469