tire size MERCEDES-BENZ GLC COUPE 2023 Owners Manual

per
mit anyre liable conclusion aboutthetir epr es-
sur e.
Onl ycor rect thetir epr essur ewhen thetir es are
cold. Conditions forcold tires:
R The vehicle hasbeen parkedwit hth etir es out
of dir ect sunlight forat least thre ehour s.
R The vehicle hastrav eled lessthan 1mile
(1.6 km).
The vehicle' stir es heat upwhen drivi ng .As the
te mp eratur eof thetir es incr eases, sotoodoes
th etir epr essur e.
V V
ehicles wit ehicles
withatir h
atir epr e
pr essur essur
emonit e
monit or or
ing syst ing
system: em:
yo ucan also checkth etir epr essur eusing theon-
boar dcom puter(/ page311).
The tirepr essur ere commen dedforincr eased
load/speed inthetir epr essur eta ble can a.ect
th eride comf ort. &
W W
ARNIN G ARNIN
GRisk ofaccident duetounsuit a-
ble acces sories ontireva lves
If yo umount unsuitableacces sories ontotir e
va lves, thetir eva lves ma ybe ove rloaded and malfunct
ion,whic hcan cause tirepr essur e
loss. #
Onlyscr ew stan da rd valve caps orvalve
caps speci/call yappr ovedby Mer cedes-
Benz foryo ur vehicle ontoth etir eva lve. NNo o
t t
es on to es
on towing atr wing
atrailer ailer
Alw aysin0at eth ere ar axle tires tothere commen -
ded tirepr essur eon thetir epr essur eta ble for
incr eased load. TT
ir ir
e pr e
pr essur essur
et e
table able
The
tirepr essur eta ble ison theinside ofthefuel
/ller 0ap.
% The datasho wnintheimag esisex am ple
dat a. The
tirepr essur eta ble showsthere commen ded
tir epr essur efo rall tires appr ovedfo rth is vehicle.
The recommen dedtirepr essur esareva lid for
cold tires unde rva rious oper ating condition s
accor dingtotheload and/or speedoftheve hi-
cle.
If one ormor etir esize spr ecede atir epr essur e,
th efo llo wing tirepr essur einf ormation isonl yva lid
fo rth ose tiresizes andtheir respect ive load con-
diti on.
The load cond itions "partiallyladen" and"fully
laden" arede/n edintheta ble fordi.er entnum-
ber sof passeng ersand amounts oflugg age. The
actual number ofseats maydi.er from this. Wheels
andtires
309 309

Som
etir epr es su re tables onlysho wtherim diam-
et er inst ead ofthecom pletetiresize, e.g.R18 R18
.
The rim diame teris par tof thetir esize andcan
be found onthetir eside wall(/ page321).
R Tire and loadi nginformatio nplacar d
(/ page314)
R Maxim umtirepr essur e(/ page320) ChecChec
kingt king
the tir he
tirepr e
pr essur essur
emanu ally e
manu ally #
Read thetir epr essur ere commen dedforth e
cur rent ope rating condi tions from thetir eand
loading information placardor thetir epr es-
sur eta ble. Obser vetheno teson tirepr essur e. #
Remo vetheva lve cap ofthetir eto be
ch ecked. #
Press thetir epr essur ega ug esecur elyont o
th eva lve. #
Read thetir epr essur e. #
Ifth etir epr essur eis lowe rth an there com-
mende dva lue, increase thetir epr essur eto
th ere commen dedvalue. #
Ifth etir epr essur eis higher than there com-
mende dva lue, release air.To do so, press
do wn theme talpin intheva lve, e.g. using the
tip ofapen. Then checkth etir epr essur e
ag ain using thetir epr essur ega ug e. #
Screw theva lve cap ontoth eva lve.
Fu rther relat ed subjects:
R Noteson tirepr essur e(/ page307)
R Tire pressur eta ble (/ page309) R
Tire and loadi nginformatio nplacar d
(/ page314) TT
ir ir
e pr e
pr essur essur
emoni t e
moni tor or
ing syst ing
system em
FF
unct ionoft unct
ionofthe tir he
tirepr e
pr essur essur
emoni t e
moni tor or
ing syst ing
system em
&
D D
AN AN
GER GER
Riskofacciden tdue toincor rect
tir epr essur e
Eac htir e, incl udin gth espar e(if pro vided),
should becheckedmont hlywhen coldand
in0a tedto thein0 ation pressur ere commen -
ded bytheve hicle manu factur eron theve hi-
cle placar dor tirein0ation pressur elabel .(If
yo ur vehicle hastires ofadi.er entsize than
th esize indicat edon theve hicle placar dor
tir ein0ation pressur elabel ,yo ushould deter-
mine thepr oper tirein0 ation pressur efo r
th ose tires.)
As anadded safetyfe atur e,your vehicle has
been equipped withatir epr essur emoni toring
sy stem (TPMS) that illu min ates alow tirepr es-
sur ete lltale when oneormor eof your tires is
sign i/ca ntly under -in0at ed. Accor ding ly,when 310310
Wheel
sand tires

Fu
rther relat ed subjects:
R Calculation exam ple forde term ining themaxi-
mum load(/page316)
R Tire and Loadi ngInformatio nplacar d
(/ page314)
R Tire pressur eta ble (/ page309)
R Vehicle identi/cation plate(/ page341) Calcul
ationex Calculation
exam am
ple f ple
for det or
deter er
min ingt min
ingthe maximum he
maximum
load load
The
follo wing table showsexam ples ofhowto cal-
culat eto taland load capac itieswithva rying seat-
ing con/ gurations anddi.er entnumber sand
sizes ofoccupa nts.Thefollo wing exam ples usea
maximum loadof1500 lbs(680 kg).This isf This
isfor or
illu
s illu
str tr
ati on pur ati
on pur pos esonl y. poses
only.Mak esur eyo uar e
using theactual loadlimit foryo ur vehicle stat ed
on your vehicle' sTire and Loadi ngInformatio n
placar d(/ page314) .
The highe rth ewe ight ofall theoccupants, the
smaller themaximum loadforlugg age.
S S
t t
ep 1 ep
1 ExEx
am am
ple 1 ple
1 Ex Ex
am am
ple 2 ple
2
Combined maximumweight ofoccupa ntsand
load (datafrom theTire and Loadi ngInformatio n
placar d) 1500
lbs(680 kg)1 500lbs(680 kg) 316316
Wheels
andtires

TT
ir ir
e labeling e
labeling OvOv
er er
vie vie
wof tir w
of tirelabeling e
labeling 1
Uniform Tire Quality Grading Standar ds
2 DOT(Depar tmentof Transpo rtatio n),(TIN)
Ti re Identi/cation Number
3 Maxi mum tireload (/page320 )
4 Maxi mum tirepr essur e(/ page320 ) 5
Man ufactu rer
6 Char acteristics ofthetir e(/ page321 )
7 Tire size desig nation,load- bearingcapacit y,
speed rating andload index(/ page321)
8 Tire nam e
% The datash ow nin theillust ration isex am ple
dat a. TT
ir ir
e Quali tyGr e
Quali tyGradin g adin
g In
accor dance withth eUS Depar tment ofTrans-
por tation's "Uniform Tire Quality Grading Stand-
ar ds", tiremanu factur ersar ere qu ired tograde
th eir tires on thebasis ofthefo llo wing thre eper -
fo rm ance fact or s: 1
Tread weargrade
2 Tractio ngr ade
3 Temp eratur egr ade
% The datasho wnintheillust ration isex am ple
dat a.
% The classi/cation isno tleg allyst ipul ated for
Canada, butitis ge ner allyst at ed.
T T
r r
ead w ead
wear gr ear
grade ade
The treadw eargrade isacom parativ era ting
bas edon thewe arrate of thetir ewhen tested
und ercontroll edcond itio ns on asp ec i/ed govern-
ment test course .Fo rex am ple, atir egr aded 150
wo uld wearone andone-half (1\1/2\)time sas 318318
Wheel
sand tires

%
The datash ow nin theimag eis ex am ple data.
The TINisauni queident i/cationnumber toiden-
tify tires and comprises thefo llo wing:
R DO DO
T(Depar T
(Depar tmentofTr tment
ofTranspo rt anspo
rtatio n): atio
n):tiresym-
bol mar ks1 indicating that thetir ecom plies
wit hth ere qu irements oftheUS Depar tment
of Transpo rtatio n.
R Man uf Man
ufactur actur
er er
identi/cation identi/cation
code: code:
manufac-
tur eridenti/cation code2cont ains details of
th etir emanuf acturer.Ne wtires have acode
wit htw osymbols. Retread edtires have acode
wit hfo ur symbo ls.Further informatio non
re treade dtir es (/ page325).
R T T
ir ir
e size: e
size: identi/er 3desc ribes thetir esize.
R T T
ir ir
e type code: e
type code: tiretype code 4can beused
by themanuf actureras acode todescr ibe
speci/c charact eristics ofthetir e.
R Manuf Manuf
actur actur
ingdat ing
date: e:
manuf acturingdate5
pr ov ides information abouttheag eof atir e.
The 1stand 2nd positions repr esent thecal-
endar week and the3r dand 4thpositions
st at eth eye ar ofmanu factur e(e.g. "3208 "
re pr esents the32nd week of2008). InfInf
or or
mation ont mation
onthe maximum tir he
maximum tireload e
load %
The datasho wnintheillust ration isex am ple
dat a.
Maxim umtireload 1isthemaximum permissi-
ble weight forwhic hth etir eis appr oved.
Do notove rload thetir es by exceedin gth especi-
/ed load limit. Themaximum permissible loadcan
be found ontheve hicle' stir eand loadi nginforma-
tion placar don theB-pillar onthedr iver's side
(/ page314). Speci/
cations Speci/
cations f f
or maximum tir or
maximum tirepr e
pr essur e essur
e %
The datasho wnintheillust ration isex am ple
dat a.
Ne verex ceed maximum tirepr essur e1 speci-
/ed forth etir e. Alw aysobser vethere commen -
ded tirepr essur efo ryo ur vehicle when adjusting
th etir epr essur e(/ page309). 320320
Wheels
andtires

InfInf
or or
mati onontir mati
onontirec e
char har
act act
er er
is is
tics tics
%
The datasho wnintheimag eis ex am ple data.
This informatio ndescr ibesthetype oftirecor d
and thenumber oflaye rs inside wall1 and
under tiretread 2. TT
ir ir
e size designation, load-bear e
size designation, load-bearingcapac ity ing
capac ity,speed ,
speed
r r
ating andload index ating
andload index &
W W
ARNIN G ARNIN
GRisk ofinjur yth ro ugh exceed-
ing thespeci/ed tireload-bear ingcapa-
city ortheper missible speedrating
Ex ceed ingthespeci/ed tireload rating orthe
per missible speedrating maylead totiredam -
ag eand tothetir es bur stin g. #
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. 1
Firs tle tter( s)
2 Nominal tirewidt hin milli meters
3 Aspe ctratio in%
4 Tire code
5 Rim diame ter
6 Load-be aring inde x
7 Speed rating
8 Load index
% The datasho wnintheillust ration isex am ple
dat a.
Inf ormatio nabout readin gtir edat acan be
obt aine dfrom anyqu ali/ed special istwo rkshop. Wheel
sand tires
321 321

Max
imumloa don one tir Max
imumloa don one tire: e:
ma xim um loadon one
tir e. This isca lcu lated bydividin gth emaximum
axle load ofone axle bytwo.
PSI (pounds persq PSI
(pounds persquar uar
einc e
inc h): h)
:st anda rdunit of
measur ementfortir epr essur e.
Aspect r Aspect
ratio: atio:
ratio between tireheigh tand tire
widt hin per cent.
T T
ir ir
e pr e
pr ess ur ess
ure: e:
thepr essur einside thetir ewhic h
applies anoutw ardfo rc eto everysq uar einc hof
th etir e. The tirepr essur eis speci/ed inpounds
per squar einc h(psi), inkilopasc als(kPa)or inbar .
The tirepr essur eshould onlybe cor rected when
th etir es arecold.
Cold tir Cold
tirepr e
pr essur essur
e: e:
thetir es arecold when the
ve hicle hasbeen parkedfo rat least 3hour swit h-
out direct sunlight onthetir es ortheve hicle has
been driven forless than 1mile (1.6km).
T T
ir ir
e cont e
cont actsurf act
surface: ace:
thepar tof thetir eth at
comes intocont actwithth ero ad.
T T
ir ir
e bead: e
bead: thepur pose ofthetir ebead isto
ensur eth at thetir esits secur elyon thewheel rim.
Ther ear ese veralwir ecor esinthetir ebead to
pr ev ent thetir efrom chang inglengthon the
wheel rim. Side
w Side
wall: all:
thepar tof thetir ebe tween thetread
and thetir ebead.
W W
eight ofop eight
ofoptional eq tional
equipment: uipment:
thecombined
we ight oftheop tional equipment weighing more
th an there placed standar dpar tsand moreth an
5 lbs (2.3 kg).This optio nal equipm ent,suc has
high- perform ance brak es, leve lcontrol system, a
ro of lugg agera ck orhigh-per form ance batteries,
is no tincl uded inthecurb weight andthewe ight
of theaccess ories.
TIN (T TIN
(Tir ir
e e
Ident i/cation Ident
i/cationNumber): Number):
auniq ueident i/-
cat ion number whichcan beused byatir emanu -
fa ctur ertoidentify tires, forex am ple, inapr oduct
re call, andthus identify thepur chaser s.The TINis
made upofthemanuf acturer'sidentity code,tire
size, tiretype code andthemanuf acturingdate.
Load-bear Load-bear
inginde ing
inde x: x:
theload-bear inginde xis a
code that cont ains themaximum load-bearing
capac ityofatir e.
Tr Tr
actio n: actio
n:tractio nis thegr ip result ing from fricti on
be tween thetir es and thero ad sur face.
W W
ear indicat ear
indicator: or
:nar row bar s(tr ead wearbar s)that
ar edis tribut edove rth etir econt actsurface. Ifth e tir
etread isleve lwit hth ebar s,thewe arlimi tof
1/1 6in (1.6 mm) hasbeen reac hed.
Dis Dis
tr tr
ibut ionofv ibut
ionofvehicle occupan ts: ehicle
occupan ts:distribut ionof
ve hicle occupan tsover designat edseat positions
in ave hicle.
Maxim umper Maxim
umpermissib lepa y missib
lepa yload w load
weig ht: eig
ht: nomi nal
load andluggage load plus150lb(68 kg)multi-
plied bythenumber ofseats intheve hicle. Chang
ingawheel Chang
ingawheel NNo o
t t
es on select ing,ins t es
on select ing,ins tallin gand r allin
gand replaci ngtir eplaci
ngtires es
*
N NO O
TE TE
Mer cedes- AMGve hicles #
Obser vetheno tesin theSupplement.
Yo ucould other wise failto recogn ize
dang ers. &
W W
AR NIN G AR
NIN GRisk ofacciden tdue toincor -
re ct wheel andtiredimen sions
If wheels andtires ofthewr ong size areins tal-
led, theser vice brak es orcom ponents inthe Wheels
andtires
325 325

br
ak esy stem and inthewheel suspension
ma ybe damag ed. #
Alwaysre place wheels andtires with
ones that ful/ll thespeci/c ationsof the
or iginal part.
Fo rwheels, payatt ention tothefo llo wing:
R Designation
R Type
Fo rtir es, payatt ention tothefo llo wing:
R Designation
R Manuf acturer
R Type &
W W
ARNIN G ARNIN
GRisk ofinju rythro ugh exceed-
ing thespeci/ed tireload-bear ingcapa-
city ortheper missible speedrating
Ex ceed ingthespeci/ed tireload rating orthe
per missible speedrating maylead totiredam -
ag eand tothetir es bur stin g. #
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. *
N NO O
TE TE
Vehicle andtiredamag ecaused by
non-a pprovedtir etypes andsizes Fo
rsaf etyre asons, onlyuse tires, wheels and
accessor ieswhic hha ve been speciall y
appr oved byMer cedes-Be nzforyo ur vehicle.
These tires arespecial lyadap tedto theactiv e
saf etysy stem s,such asABS,ESP ®
and
4MA TIC,andmarkedas follo ws :
R MO =Mer cedes-Be nzOrigina l
R MOE =Mer cedes-Be nzOrigina lEx tended
(r un -0at tires onl yfo rcer tain wheels)
R MO1 =Mer cedes-Benz Original (onlycer -
ta in AMG tires)
Ot her wise, certain proper ties, suchas han-
dling charact eristics, vehicle noiseemissi ons,
consu mption, etc. could beadv ersel ya.ec-
te d. Further mor e,other tiresize scould result in
thetir es rubbing against thebody andaxle
com ponents whenloaded. Thiscould result in
damag eto thetir eor theve hicle.
Onl yuse tires, wheels andaccessor iesthat
ha ve been checkedand recommen dedby
Mer cedes-Be nz. *
N NO O
TE TE
Risk todriving safetyfrom retrea-
ded tires Re
tread edtires areneit her tested norre com-
mende dby Mer cedes-Be nz,sinc epr ev ious
damag ecanno talw aysbe detected on retrea-
ded tires.
Fo rth is reason drivi ng safetycann otbe guar -
ant eed. #
Donotuse used tires ifyo uha ve no
inf orma tion abouttheir prev ious usage. *
N NO O
TE TE
Possible wheel andtiredamag e
when drivi ng ove robst acles Lar
gewheels have asmalle rsecti onwidt h.As
th esection widthdecr eases, therisk of 326326
Wheel
sand tires

Obser
vethefo llo wing when selecting, installing
and replacing tires:
R Further mor e,theuse ofcer tain tiretypes in
cer tain regions andareas ofoper ationca nbe
high lybene/cia l.
R Onlyuse tires and wheels ofthesame type
(summer tires, wint ertires, MOExt ended tires)
and thesame make.
R Onlyinst allwheels ofthesame size(leT and
ri ght) oneac hax le.
It is onl yper mis sibleto inst alladi.er ent
wheel sizeintheev ent ofa0at tirein order to
dr ive to thespecialist workshop.
R V V
ehicle swit ehicle
swit hatir h
atir epr e
pr essur essur
emoni t e
moni tor or
ing sy ing
sys- s-
t t
em: em:
allinstalled wheels mustbeequipped
wit hfunctionin gsensor sfo rth etir epr essur e
monit oring system.
R Attemp eratur esbelo w45°F (7°C) usewinter
tir es orall-season tires mar ked004D M+Sfor
all wheels.
Wi nter tires prov ide thebest possible grip in
wintr yroad conditions. R
ForM+S tires, onlyuse tires withth esame
tr ead.
R Obser vethemaximum permissible speedfor
th eM+S tirewhic his inst alled.
If th etir e's maximum speedisbelo wthat of
th eve hicle, this must beindicat edbyan
appr opriatelabel inthedr iver's /eld ofvision.
R Break inne wtires atmoder atespeeds forth e
/r st 60 miles (100km).
R Replace thetir es aTer sixyearsat thelat est,
re ga rdless ofwe ar.
R When r When
replaci ngwit eplaci
ngwithtir h
tir es t es
that dono hat
donotf t
featu r eatu
re e
r r
un-0at un-0at
c c
har har
act act
er er
is is
tics: tics:
vehicles with
MOExt endedtires areno teq uipp edwitha
TIR EFIT kitatthefa ct or y. Eq uip theve hicle
wit haTIR EFIT kitaTer replacing withtir es that
do notfe atur eru n-0at charact eristics, e.g.
wint ertires.
Fo rmor einf ormation onwheels andtires, cont act
a qu ali/ed special istwo rkshop.
Be sureto also obser vethefo llo wing further rela-
te dsubjects:
R Noteson tirepr essur e(/ page307) R
Tire and loadi nginformatio nplacar d
(/ page314)
R Tire size desig nation,load- bearingcapacit y,
speed rating andload index(/ page321)
R Tire pressur eta ble (/ page309)
R Noteson theemer gency sparewheel
(/ page335) NNo o
t t
es on rot es
on rotatin gwheels atin
gwheels &
W W
AR NING AR
NING Riskofinjuryth ro ugh di.er ent
wheel sizes
Ro tating thefront and rear wheels can
se verely im pair thedr iving charact eristics.
The wheel brak es orsuspen sioncomponents
ma yalso bedamag ed. #
Rotate front and rear wheels onlyif th e
wheels andtires areof thesame dimen-
sions. Obser
vetheinst ruction sand safetyno teson
"Chang ingawheel" (/page325) 328328
Wheel
sand tires

The
wearpatt erns on thefront and rear wheels
di.er :
R Front wheels wearmor eon thetir eshoulder
R Rear wheels wearmor ein thecent erofthe
tir e
Do notdr ive wit htir es that have toolittle tread
dep th.This signi/ can tly re duces traction onwet
ro ads (hydr oplan ing).
On vehicles that have thesame sizefront and rear
wheels, rotate thewheels accordingtotheint er-
va ls in thetir emanuf acturer'swarrant ybook in
yo ur vehicle docume nts. Ifth is is no tav ailabl e,
ro tate thetir es every3,000 to6,000 miles
(5,000 to10,000 km),depending onthewe ar.
Ensu rethat thedir ection ofrotation ismai n-
ta ined. NNo o
t t
es on st es
on stor or
ing wheels ing
wheels When
stor ing wheels, observethefo llo wing notes:
R ATer remo vingwheels, stor eth em inacool,
dr yand prefer abl ydar kplace.
R Protect thetir es from cont actwithoil, grease
or fuel. OvOv
er er
vie vie
wof t w
of the tir he
tire-c e-c
hang hang
et e
tool kit ool
kit *
N NO O
TE TE
Mer cedes- AMGvehicles #
Obser vetheno tesin theSupplement.
Yo ucould other wise failto recogn ize
dang ers. Apar
tfr om some countr y-speci/c variant s,vehi-
cles areno teq uipp edwithatir e-c hang eto ol kit.
Fo rmor einf ormation onwhic htir e-c hanging tools
ar ere qu ired and appr ovedfo rper form ing awheel
ch ang eon your vehicle, consu ltaquali/ed spe-
cialis two rkshop.
Yo ure qu ire th efo llo wing tools, fore xa mp le,to
ch ang eawheel:
R Jack
R Choc k
R Lugwr enc h
R Alignme ntbolt
The tire-c hangeto ol kit islocat edunder thecar go
0oor . %
Depending onthemodel, thetir ech ang eto ol
kit maybe locat edinother posit ionsund er
th ecar go0oor . 1
Jack
2 Ratche tfo rjac k
3 Lugwr enc h
4 Folding choc k Wheels
andtires
329 329