2019 MERCEDES-BENZ SLC ROADSTER tire size

GVW
(GrossVeh icle Weigh t)(def -
ini tio n).... .......................................2 87
GVW R(G ross VehicleWei ght
Ra ting) (definitio n)....... .................. 287
Importa ntsafe tynotes .................. 267
Increase dvehi cleweight due to
optio nalequ ipme nt(de finitio n)...... 286
Informati onondrivi ng....... ............. 267
Kil opa scal (kPa)(de finitio n)....... .... 287
Lab eling (ove rview )<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011[ 283
Loa dbe ari ng index(defi niti on) ...... 288
Loa dind ex<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 285
Loa dind ex(defi niti on) <0011001100110011001100110011001100110011001100110011001100110011
001100110011[ 287
M+S tires<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 269
Ma ximu mload on atire (defi ni-
tion) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 287
Ma ximu mload ed veh iclewe ight
(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 287
Ma ximu mpermi ssible tire pres-
su re (defi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011[ 287
Ma ximu mtire load <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011[ 285
Ma ximu mtire load (defi niti on) ....... 287
MOExte ndedtires<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011[ 269
Opti onaleq uipme ntwe ight (defi -
niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 288
Ove rview <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 267
PSI (pou nds persqu are inch )
(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 287
Re placi ng <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 288
Servi celife <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 268
Sid ewall(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011[ 288
Spe edrati ng(defi niti on) ................ 287
Stori ng<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 289
Structu reand characte ristics
(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 286
Sum mer tires<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 269
Tem peratu re<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 282
TIN (Tire Identifi cationNumbe r)
(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 288
Ti re bead (defi niti on) <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011[ 288
Ti re pre ssu re(defi niti on) ................ 287
Ti re pre ssu res (recomme nded)...... 286
Ti re size (data )<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011[ 292
Ti re size desig nati on,load -bea r-
ing capacity, spe edrati ng.............. 283
Ti re trea d<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 268
Ti re trea d(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011[ 288
Tota llo ad limit (defi niti on) ............. 288 Tra
ctio n<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 282
Tra ctio n(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011[ 288
Tre adwear<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 282
Unif orm Tire Qua lity Gra ding
Stand ards<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 281
Unif orm Tire Qua lity Gra ding
Stand ards(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011[ 286
Wea rind icator (defi niti on) ............. 288
Whe eland tirecomb ination ........... 292
Whe elrim (defi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011[ 287
see Flattire
Tow -starti ng
Emerg encyenginestarting ............ 265
Imp orta ntsafety notes <0011001100110011001100110011001100110011001100110011001100110011
00110011[ 263
Tow ing
Per mitte dtow ingmeth ods............ 264
Tow ingawa y
Imp orta ntsafety guideline s........... 263
Insta lling the towingeye................ 263
Re movi ngthe towingeye............... 264
Tra nspo rting thevehicle................ 265
Wi th both axles on the ground ....... 264
Wi th the rearaxl erai sed ................ 264
Traffi crepo rts
see also Digi talOpe rator'sMan-
ua l<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011[ 217
Trans mission
Ove rview oftrans mission pos i-
tions <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 125
Sel ector lever <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011[ 125
see Auto matictrans mission
Trans mission pos ition display ......... 125
Trans portingthe vehic le<0011001100110011001100110011001100110011001100110011001100110011
00110011[ 265
Trip computer (on-b oard com-
puter) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011[ 170
Trip odomete r
Ca lling up<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 170
Re setti ng(on-boa rdcomp uter)...... 171
Trunk
Emerg encyrelease <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011[ 74
Imp orta ntsafety notes <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011[ 73
Locki ngsep arately<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011[ 74
Ope ning/ closing (manually from
ou tsid e)<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 74
Ove rview <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 73
Trunk lid
Disp laymes sage <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011[ 204
Ope ning dimens ions <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011[ 303 In
dex
19

Weather
display(COMAND )
see alsoDigita lOpera tor'sMan-
ua l...... ...... ......................................217
Wheel andtirecombinatio ns
Tire s...... ......................................... 292
Wheel bolttighten ingtorque ........... 292
Wheel chock...... ................................289
Wheel s
Cha nging awhe el...... ....................288
Che cking ........................................ 267
Cl eani ng...... ................................... 249
Emergency sparewhe el...... ........... 293
Important safetynotes .................. 267
Informatio non drivi ng...... ..............267
<002C00510057004800550046004B00440051004A004C0051004A00120046004B
0044[ nging................ 288
Mou nting anew wheel...... .............291
Mou nting awhe el....... ................... 289
Overvi ew....... ................................. 267
Rem oving awhe el....... ................... 291
Storing ...........................................289
Tig htening torque....... .................... 292
Whee lsize/tire size.......................292
Wind screen
Inserting andremovi ng....... ............. 81
Prep aring for instal lation ..................81
see AIRG UIDE
Windo ws
see Side windows
Windsh ield
Defrosting ......................................112
Windsh ieldwashe rfluid
see Winds hieldwa sher system
Windsh ieldwashe rsyste m
Addi ngwasher fluid....... ................243
Importa ntsafe tynotes .................. 302
Windsh ieldwi pers
Displ aymessa ge....... ..................... 206
Prob lem(malfunction) ................... 105
Rep lacing thewiper blades ....... ..... 104
Switchi ngon/off ........................... 103
Winte rdrivin g
Importa ntsafe tynotes .................. 269
Slip pery road surfaces....... ............ 141
Snow chains....... ........................... 270
Winte roperatio n
Overvi ew....... ................................. 269
Winte rtires
M+S tires.......................................269 Wiper
blades
Cl eani ng....... .................................. 249
Importa ntsafe tynotes .................. 104
Rep lacing .......................................104
Worksho p
see Qualified speci alist worksh op Z
ZONE function
Switchi ngon/off ........................... 112 In
dex
21

the
vehicleon the desired course withi nph ysi-
cal limi ts. ESP ®
as sists the driver when pulling
aw ay on wetor slip pe ry roa ds.ESP ®
can also
sta bilize the vehicledu rin gbra king .
ETS (Electro nicTrac tionSys tem) i
Ob
serve the "Impo rtantsafety note s"sec-
tio n(Y page 57).
ETS tractio ncontro lis pa rtof ESP ®
.
ETS brakes thedrive wheelsind ividu ally ifthe y
sp in. Thisena bles youto pullaw ay and accel-
era teon slip pe ry surfa ces ,for exa mpl eif the
roa dsu rfa ce isslip pe ry on one side .In addi-
tio n,mor edri ve torq ueistra nsfe rredto the
wh eelor wh eelswith tra ctio n.
ETS remains acti vewhen youde acti vate ESP ®
.
Impo rtant safety notes G
WA
RNING
If ESP ®
is ma lfunctio ningitwi llnot provide
any vehiclesta bilizati on. Thereisan
incr easedris kof ski dding orofan acc ident.
Exerc ise cau tionwh en conti nuing todrive.
Hav eESP ®
che cked ataqu alifi ed speci alist
wo rksh op.
Wh entow ingthe vehiclewi th the rearaxl e
ra ised ,ob serve the note son ESP ®
(Y page 264 ).
If the 00BB ESP®
OFF warning lamp lights up
conti nuously,the nESP ®
is de acti vated .
If the 00E5 ESP®
wa rning lamp and the00BB
ESP ®
OFF warning lamp arelit conti nuously,
ESP ®
is not availabl e du eto ama lfunctio n.
Ob serve the inform ation on warning lamps
(Y page 211 )and disp laymes sage swh ich
ma ybe sho wninthe instrument cluste r
(Y page 183 ).
i Onl
yus ewh eelswith the reco mme nded
tire sizes .Onl ythe nwi llESP ®
functio npro p-
erl y. Ch
arac teristics ofESP® Ge
neral info rmatio n
If the 00E5 ESP®
wa rning lamp goes out
be for ebe ginning thejourney ,ESP ®
is au to-
ma tica lly acti ve.
If ESP ®
inte rvenes ,the 00E5 ESP®
wa rning
la mp flashe sin the instrument cluste r.
If ESP ®
inte rvenes :
X Do not deacti vate ESP ®
und erany circum -
sta nces .
X Onl yde pre ssthe accelera tor pedalas faras
nece ssarywh en pulling away.
X Ada ptyour drivin gsty leto suitthe prevailing
roa dand weath ercond itions .
EC Ostart/ stopfun ction
Th eECO start/sto pfu nctio nsw itch esthe
eng ineoffautoma tically wh en the vehicle
stop smov ing.Th eeng inestarts automa tically
wh en the driver wants topullaw ay again.
ESP ®
rem ains inits pre viouslyse lected status ,
e.g .if ESP ®
wa sde acti vated befor ethe engine
wa sau toma tically sw itch edoff.
De activ atin g/activ atin gES P®
(e xc ept
Me rce des -AMG SLC43) Impo
rtant safety notes
i Ob
serve the "Impo rtantsafety note s"sec-
tio n(Y page 57) .
Yo ucan select betwe enthe followi ng states of
ESP ®
:
R ESP ®
is acti vated
R ESP ®
is de acti vated G
WA
RNING
If yo ude acti vate ESP ®
,ESP ®
no longe rsta -
bi lizes thevehicle. There isan incr easedris k
of ski dding and anacc ident.
Onl yde acti vate ESP ®
in the situa tions
de scri bedin the followi ng.
It ma ybe best to deacti vate ESP ®
in the fol-
lo wi ng situa tions:
R wh en using snowcha ins
R in de ep sno w
R on sand orgra vel Dr
ivi ng safet ysy stem s
61Safet y Z

teri
stics, e.g.wi nter tires.ATIR EFIT kitmaybe
ob tained fromaqu alifi ed speci alistwo rksh op.
Info rma tionon cha nging and mou nting wheels
(Y page 288 ).
X Stop thevehicleon solid,non-s lipp ery and
le vel ground ,as faraw ay aspossi ble fro m
tra ffic.
X Swi tch onthe hazar dwa rning lamps .
X Secu rethe vehicleag ainst rolling away
(Y page 134 ).
X Ifpo ssi ble, bri ng the frontwh eelsinto the
stra ight-a head positio n.
X Swi tch offthe engine.
X Veh icle swi tho utKEYLES S-G O:rem ove
the Sma rtKeyfro mthe igniti onlock.
X Veh icle swi th KEYLES S-G O:open the driv-
er' sdo or.
The vehicleelectro nicsarenow inpo sitio n
005A. Thisis the same asthe Sma rtKeyha vin g
be en rem oved.
X Veh icle swi th KEYLES S-G O:rem ove the
Star t/Stop button fromthe igniti onlock
(Y page 118 ).
X Ma kesure tha tthe passe nge rsarenot
end angeredas the ydo so. Makesure tha t
no one isnea rthe dange rar ea while a
wh eelis be ing change d.Anyo newhois not
di rectl yas sisti ng inthe wheelcha nge
sho uld, for exa mpl e,sta nd behind the bar-
rie r.
X Ge tou tof the vehicle. Pa yatte ntionto tra f-
fic cond itions when doing so.
X Close thedriver 'sdo or. MOE
xtende dtire s(ti res with run-f lat
prope rties)
Ge neral notes Wi
th MOExte ndedtire s(ti res with runfla t
cha racteri stics) ,yo ucan conti nuetodrive your
veh icleeve nif the reisatota llo ss ofpre ssu re
in one ormor etire s.The affecte dtire mustnot
sho wany clearly vis ible da ma ge.
Yo ucan reco gnizean MOExte ndedtire bythe
MOExte ndedma rking which appe arson the
si de wa llof the tire.Yo uwi llfin dthi sma rking
next tothe tire size designa tion,the load -be ar-
ing capacityand thespee dind ex
(Y page 283 ). MOExte
ndedtire sma yonl ybe used incon-
junc tionwi th an acti vetire pressu reloss wa rn-
ing syste mor with an acti vetire pressu remon-
ito r.
If apres sure loss wa rning mes sage
appe arsinthe multi function displa y:
R ob serve the instructio nsinthe disp laymes -
sa ge s(Y page 201 )
R che ckthe tire fordama ge
R ifdri vin gon, observe the followi ng note s
Th edri vin gdista nce possi ble in run-fl atmod e
is ap pro xim ately50 miles(80 kilome ters)
wh en the vehicleis pa rtia lly la de nand appro x-
im ate ly19 miles(30 kilome ters)wh en the
veh icleis fully la de n.
In additio nto the vehicleload ,the drivin gdis-
tance possi ble de pends upon:
R Veh iclesp ee d
R Ro ad cond ition
R Ou tside temp erature
Th edri vin gdista nce possi ble in run-fl atmod e
ma ybe red uce dby extre medrivin gcond itions
or ma neu vers,or itcan beincr easedthro ugha
mod eratesty leof dri vin g.
Th edri vin gdista nce possi ble in run-fl atmod e
is cou nted fromthe mom entthetire pressu re
lo ss wa rning appe arsin the multifu nctio ndis-
pl ay .
Yo umu stnot exce edama xim um design
sp ee dof 50 mph (80km/h ).
Wh enrep lacing oneoralltire s,plea se observe
the followi ng speci ficati ons foryour veh icle's
tire s:
R Size
R Type and
R Th e"M OExte nded"ma rk
If atire hasgo ne flatand cann otbe rep laced
wi th an MOExte ndedtire ,a sta nda rdtire may
be used asatemp orarymea sure. Makesure
tha tyo uus ethe propersi ze and type(sum mer
or winter tire).
Veh icles equipp ed with MOExte ndedtire sar e
not equipp ed with aTIR EFIT kitatthe factory .
It is the refore recomm endedtha tyo uad ditio n-
al ly eq uip yo ur veh iclewi th aTIR EFIT kitifyo u
mou nttire stha tdo not featureru n-fl atcha rac-
teri stics, e.g.wi nter tires.ATIR EFIT kitcan be
ob tained fromaqu alifi ed speci alistwo rksh op,
for exa mpl e. Fl
at tire
253Break downass istanc e

Tire
andLoadin gIn fo rmatio nplac ard 0043
Recomm endedtire pressu res
The Tire and Loading Info rma tionplaca rdison
the B-pillar on the driver 'sside (Ypage 279 ).
The Tire and Loading Info rma tionplaca rdcon-
tai ns the reco mme ndedtire pressu res forcold
tire s.The reco mme ndedtire pressu res are
va lid for the maxim um permi ssible load and up
to the maxim um permi ssible veh iclesp ee d.
Tire pres sure table The
tirepressu retab leison the inside of the
fu el fillerfla p. Itsho wsthe tire pressu refor all
tire spe rmi tted atthe factory forthisveh icle;
see illu stra tion(e xam ple) . The
tirepressu retab leconta insthe reco m-
mend edpre ssu res forcoldtire sfor vario us
op era ting cond itions, i.e.di ffe ringload and
sp ee dcond itions.
If atire size pre ced esatire pressu re,the fol-
lo wi ng tire pressu reinfo rma tionis onl yva lid
for thattire size; see illu stra tion(e xam ple) . The
load cond itions "partia lly la de n" and "ful ly
la de n" arede fine din the tablefor diffe rent
num bers of occu pants and amounts oflug-
ga ge .The actu alnum berof sea tsma ydi ffe r. Some
tirepressu retab lessho wonl ythe rim
di am ete rsins tea dof the fulltire size, e.g.R18 .
Ri m diam ete ris pa rtof the tire size and canbe
fou ndonthe tire side wa ll(Y page 283 ).
If the tire pressu res have been set tothe lowe r
va lues for lighte rlo ad sand /or lowe rroa d
sp ee ds,the pressu res should be res etto the
hi ghe rva lues:
R ifyo uwa ntto drive with an incr eased load
and /or
R ifyo uwa ntto drive athighe rroa dsp ee ds
The tirepressu res forincr eased load sand /or
hi ghe rroa dsp ee ds,sho wninthe tire pressu re
tab le,ma yha ve aneg ative effect ondrivin g
comf ort.
If the tire pressu reisnot setcorr ectly,thi scan
le ad toan exce ssive build-u pof heat and a
su dd en loss ofpre ssu re.
For mor einfo rma tion,conta ctaqu alifi ed spe-
cia list wo rksh op. Tire
pres sure
271Whe elsand tires Z

is
shown inthe Serv . Serv
.men uof the multif unc-
tion display. Ex
ample: currenttirepress uredisplay
For informat iononthe mess agedisplay, refer
to the "Check ingthe tirepress ureelect roni-
cally" section(Ypage 276).
Imp ortant safet ynotes G
WARN
ING
Eac htir e, inc luding thespare (ifprov ided),
should bechec kedatleast onceamon th
when coldandinflated tothe press urerec-
omme ndedbythe vehic lemanuf acturer on
the Tire andLoadin gInf ormat ionplacard on
the drive r'sdoor B-pillar orthe tirepress ure
label onthe inside ofthe fuel filler flap.If
your vehic lehas tires ofadiffe rentsize than
the size indic ated onthe Tire andLoadin g
Inf ormat ionplacard orthe tirepress ure
label, youshould determin ethe proper tire
press ureforthosetires.
As anadded safetyfeat ure, your vehic lehas
been equipped withatir epress uremon itor-
ing syst em(TPMS )that illuminat esalow tire
press uretelltalewhen oneormore ofyour
tir es are sign ifican tlyunder inflated. Accor d-
ingly, when thelow tirepress uretelltaleillu-
min ates, youshould stopand chec kyour
tir es assoon aspossible ,and inflate themto
the proper pressure.Drivin gon asign ifi-
can tlyunder inflated tirecauses thetireto
over heat andcanlead totirefailure. Under-
inf lation alsoreduc esfuel effic iencyand tire
tr ead life,and may affec tthe vehic le'shan-
dling andstopping ability.
Please notethat theTPMS isnot asubst i-
tut efor proper tiremaint enance,and itis
the drive r'srespo nsibilit yto maint aincor-
rec ttir epress ure,even ifunder inflation has not
reach edthe level totrigger illuminat ion
of the TPMS lowtirepress uretelltale.
Your vehic lehas also been equipped witha
TPMS malfun ction indic atortoindic ateifthe
syst emisnot operat ingproper ly.The TPMS
malfun ction indic atoriscom bined withthe
low tirepress uretelltale. When thesyst em
dete ctsa malfun ction, thewarnin glamp will
flash forapprox imatelyamin ute and then
remain continuously illuminat ed.This
sequen cewill berepeat edever ytim ethe
vehic leisstar ted aslong asthe malfun ction
exis ts.
When themalfun ction indic atorisillumina-
ted, thesyst emmay notbeable todete ctor
sign allow tirepress ureasintended .TPMS
malfun ctions may occurfor avariet yof rea-
son s,inc luding theinstallation ofinc ompat i-
ble replac ementor alter natetir es orwheels
on the vehic lethat preventtheTPMS from
func tioningproper ly.Always checkthe
TPMS malfun ction tellt aleafterreplac ing
one ormore tires orwheels onyour vehic le
to ens ure that thereplac ementor alter nate
tir es and wheels allowtheTPMS tocon tinue
to func tion proper ly.
It is the drive r'srespo nsibilitytoset the tire
press uretothat recomme ndedforcold tires
which issuitable forthe operat ingsituat ion
(Y page 270).Not ethat thecorrecttir epres-
sure forthe curr entoperat ingsituat ionmust
firs tbe taught -intothe tirepress uremon itor.
If asubst antialloss ofpress ureoccurs, the
warnin gthr eshold forthe warnin gmess ageis
aligned tothe taught -inrefe rencevalues.
Restar tthe tirepress uremon itorafteradjust -
ing the press ureofthe cold tires
(Y page 277). Thecurrentpress uresare
saved asnew referencevalues. Asaresult ,a
warnin gmess agewillappear ifthe tirepres-
sure drops significant ly.
The tirepress uremon itordoes notwarn youof
an incorre ctly set tirepress ure.Obser vethe
not eson the recomme ndedtirepress ure
(Y page 270).
The tirepress uremon itorisnot able towarn
you ofasudden lossofpress ure,e.g.ifthe
tir eis penet ratedby afor eign object.In the
even tof asudden lossofpress ure,bringthe Tir
epr essur e
275Wheels andtires Z

Tire
labelin g
Ov erv iew 0043
UniformTire Qu ality Grad ing Stand ard
(Y page 286 )
0044 DOT, Tire Ide ntifi cationNumbe r
(Y page 285)
0087 Maxim um tire load (Ypage 285 )
0085 Maxim um tire pressu re(Y page 273 )
0083 Manuf actu rer
0084 Tire ma teri al(Y page 286 )
006B Tire size designa tion,load -be aring capacity
and spee dra ting (Ypage 283 )
006C Loadind ex(Y page 285 )
006D Tire nam e
The markin gsdescri bedab ove areon the tire
in ad ditio nto the tire nam e(sales designa tion)
and themanuf actu rer'snam e.
i Ti
re data isveh icle-s pecificand mayde vi-
ate fromthe data inthe exampl e.
Tire size des ignati on,lo ad-b earing
ca pac ityand speedratin g G
WA
RNING
Excee ding the stated tire load -be aring capa-
city and theappro ved maxim um spee d
cou ldlead totire dama georthe tire burst-
ing .The reisaris kof acc ident.
The refore ,onl yus etire typesand sizes
ap pro ved foryour veh iclemod el.Ob ser ve the
tire load rating andspee dra ting
req uired foryour veh icle. 0043
Tire width
0044 Nom inalas pe ct ratio in%
0087 Tire cod e
0085 Rim diam ete r
0083 Loadbe aring index
0084 Spe edrating
Ge neral: dependi ng on the manuf actu rer's
sta nda rds,the size imp rinted inthe tire wall
ma ynot conta inany letters orma yconta in
one letter thatpre ced esthe size descri ption.
If the reisno letter preced ingthe size descri p-
tio n(a ssho wnabove ):the searepa sse nge r
veh icletire sacc ording toEur opeanma nuf ac-
tur ing standa rds.
If "P "pre ced esthe size descri ption: theseare
pa sse nge rveh icletire sacc ording toU.S. man-
uf actu ringsta nda rds.
If "L T" pre ced esthe size descri ption: theseare
li ght truck tire sacc ording toU.S. manuf actu r-
ing standa rds.
If "T "pre ced esthe size descri ption: comp act
eme rgency wheelswith high tire pressu retha t
ar eonl yde signe dfor temp oraryusein an
eme rgency .
Tire width: tirewidth 0043sho wsthe nomi nal
tire width inmil limete rs.
He ight-w idth ratio :as pe ct ratio 0044 isthe size
ra tio betwe enthe tire height and tirewidth
and issho wninpe rcen t.The aspe ct ratio is
cal cul ate dby divid ing the tire width bythe tire
he ight.
Tire code: tire code0087 speci fiesthe tire type.
"R "rep resents radial tire s;"D" represents
di ag ona ltire s;"B" represents diag ona lra dial
tire s. Al
labo utwhee lsan dtire s
283Whe elsand tires Z

Optionally
,tires withamaximum speedofover
149 mph (240km/h )may have "ZR"in the
size description, dependingonthe manufac-
turer (e.g.245/4 0ZR 18).
Rim diameter: rimdiameter 0085isthe diame-
ter ofthe bead seat,notthediameter ofthe
rim flange. Therimdiameter isspecified in
inches (in).
Load-bearing index:load-bea ringindex 0083is
a numerical codethatspecifies themaximum
load-bea ringcapacity ofatire.
Do not overload thetires byexceeding the
specified loadlimit. Themaximum permissible
load canbefound onthe vehicle's Tireand
Loading Information placardonthe B-pillar on
the driver's side(Ypage 279).
Example:
Load-bearing index91indicates amaximum
load of1,356 lb(61 5kg) that thetires can
bear. Forfurther information onthe maximum
tire load inkilograms andlbs,see
(Y page 285).
For further information onthe load bearing
index, see"Load index" (Ypage 285).
Speed rating: speedrating0084specifies the
approved maximum speedofthe tire.
i Tire
data isvehicle-specific andmay devi-
ate from thedata inthe example.
Rega rdless ofthe speed rating, alwaysobserve
the speed limits. Drivecarefully andadap t
your driving styletothe traffic conditions. Summer
tires Index Speed
rating Q up
to100 mph (160 km/h) R up
to106 mph (170 km/h) S up
to112 mph (180 km/h) T up
to118 mph (190 km/h) H up
to130 mph (210 km/h) V up
to149 mph (240 km/h) W up
to168 mph (270 km/h) Y up
to186 mph (300 km/h) ZR...Y up
to186 mph (300 km/h) Summer
tires Index Speed
rating ZR...(..Y) over
186mph (300km/h ) ZR over
149mph (240km/h ) R
Optionally ,tires withamaximum speedof
over 149mph (240 km/h) mayhave "ZR"in
the size description, dependingonthe man-
ufacturer (e.g.245/4 0ZR18 ).
The service specification ismade upofload-
bearing index0083and speed rating0084.
R Ifthe size description ofyour tireincludes
"ZR "and there arenoservice specifications,
ask thetire manufacturer inorder tofind
out themaximum speed.
If aservice specification isavail able, the
maximum speedislimited according tothe
speed ratinginthe service specification.
Example: 245/40ZR18 97Y.Inthis exam-
ple, "97Y"isthe service specifica tion.The
letter "Y"represents thespeed rating. The
maximum speedofthe tire islimi ted to
186 mph (300 km/h).
R The size descriptio nfor alltires withmaxi-
mum speed sof over 186mph (300 km/h)
must include "ZR",and theservice specifi-
cation mustbegiven inparentheses .Exam-
ple: 275/40 ZR18 (99 Y).Speed rating"(Y)"
indicates thatthemaximum speedofthe
tire isover 186mph (300 km/h). Askthe
tire manufacture rabou tthe maximum
speed . All
-
weather
tires
and win-
ter tires Index Speed
rating Q
M+S 1 up
to100 mph (160 km/h) T
M+S 1 up
to118 mph (190 km/h) H
M+S 1 up
to130 mph (210 km/h) V
M+S 1 up
to149 mph (240 km/h) 1
Or M+S 004D forwinter tires. 284
Al
labout wheelsand tiresWheel sand tires