MERCEDES-BENZ CLA COUPE 2019 Owner's Manual

Page 301 of 330

halt
bybraking carefully. Avoidabrupt steering
movement s.
The tirepressure monitorhasayellow warning
lamp inthe instrumen tcluster forindicating
pressure lossoramalfunction. Whetherthe
warning lampflashes orlights upindicates
whether atire pressure istoo low orthe tire
pressure monitorismalfunctionin g:
R ifthe warning lampislit cont inuously ,the tire
pressure onone ormore tiresissignificantly
too low. Thetirepressure monitorisnot mal-
funct ioning.
R ifthe warning lampflashes foraround a
minute andthen remains litconst antly, the
tire pressure monitorismalfunctionin g.
In addition tothe warning lamp,amessage
appea rsinthe multifunction display.Observe
the information ondisplay messages
(Y page 213).
It may take uptoten minutes foramalfunction
of the tire pressure monitortobe indicated. A
malfunction willbeindicated bythe tire pres-
sure warning lampflashing forapproximately
one minute andthen remaining lit.When the
malfunction hasbeen rectified, thetire pressure
warning lampgoesoutafter afew minutes of
driving.
The tirepressure valuesindicated bythe on-
board computer maydiffer fromthose meas-
ured atagas station withapressure gauge.The
tire pressures shownbythe on-board computer
refer tothose measured atsea level. Athigh
altitudes, thetire pressure valuesindicated bya
pressure gaugearehigher thanthose shown by
the on-board computer. Inthis case, donot
reduce thetire pressures.
The operation ofthe tire pressure monitorcan
be affected byinterfer encefromradio transmit -
ting equipment (e.g.radio headphones, two-way
radios) thatmay bebeing operated inor near the
vehicle.
Checking thetire pressur eelec troni-
cally X
Make surethattheSmartKey isin position 0048
in the ignition lock(Ypage 123).
X Press 0059or0065 onthe steering wheelto
select theServ. Serv.
menu. X
Press the0063 or0064 button toselect
Tire Pressure Tire
Pressure.
X Press the0076 button.
The current tirepressure ofeach tireisshown
in the multifunction display.
If the vehicle wasparked forlonger than
20 minutes, theTire pressure willbe Tire
pressure willbe
displayed afterdriving afew minutes displayed
afterdriving afew minutes
message isshown.
Aft erateach-in process, thetire pressure mon-
itor automatically detectsnewwheels ornew
sensors. Aslong asaclear allocation ofthe tire
pressure valuetothe individua lwheels isnot
possible, theTire Tire
Pressure Pressure
Monitor Monitor
Active Active
message isshown instead ofthe tire pressure
display .The tirepressures arealready being
monitored.
If an emergency sparewheel ismounted, the
system maycontinue toshow thetire pressure
of the wheel thathasbeen removed forafew
minutes. Ifthis occurs, notethatthevalue dis-
play edfor the position wherethespare wheel is
fitted isnot thesame asthe current tirepres-
sure ofthe emergency sparewheel.
Tire pressur emonitor warning mes-
sages If
the tire pressure monitordetectsapressure
loss inone ormore tires,awarning message is
shown inthe multifunction display.The yellow
tire pressure warninglampthenlights up.
R Ifthe Please Correct TirePressure Please
Correct TirePressure
message appearsinthe multifunction display,
the tire pressure inat least onetireistoo low.
The tirepressure mustbecorrect edwhen the
opportunity arises.
R Ifthe Check TirePressure Check
TirePressure message
appea rsinthe multifunction display,the tire
pressure inone ormore tireshasdropped
significantly. Thetires must becheck ed.
R Ifthe Tire Tire
Pressure Pressure
Warning Warning
Tire Tire
Fail‐ Fail‐
ure ure
message appears,the tire pressure inone
or more tireshasdropped suddenly. Thetires
must becheck ed.
Observe theinstruct ionsandsafety notesinthe
display messages inthe "Tires" section
(Y page 213).
If the wheel positions onthe vehicle arerotated,
the tire pressures maybedisplay edfor the
wrong positions forashort time.Thisisrectified
after afew minutes ofdriving, andthetire pres-
sures aredisplay edfor the correct positions. Tire
pressure
299Wheelsandtires Z

Page 302 of 330

Res
tarting thetire pres sure monitor Whe
nyo ures tart thetire pressu remoni tor,all
exi sting warning messages aredeleted andthe
wa rning lamps goout.The moni toruses the cur-
rentl yset tire pressu res asthe refe rence values
for moni toring. Inmost cases, the tire pressu re
moni torwillau toma tically dete ctthe new refer-
ence valuesafte ryo uha ve cha nged thetire
pre ssu re.How ever,yo ucan also set refe rence
val uesmanu ally as des crib edher e.The tire
pre ssu remoni torthen monitorsthenew tire
pre ssu reval ues.
X Set thetire pressu reto the value reco mmen-
ded forthe corre spondingdriving situation on
the Tire and Loading Inform ation placa rdon
the driver' ssid eB-pi llar (Y page 293 ).
Yo ucan find more tirepressu reval uesfor
var ious ope ratingcondi tions inthe tire pres-
su re tab leinsi dethe fuelfil lerfla p
(Y page 141 ).
X Ma kesure that thetire pressu reiscorre cton
al lfou rwh eel s.
X Ma kesure that theSmar tKeyisin pos ition 0048
in the igniti onlock (Ypage 123).
X Pre ss0059 or0065 onthe stee ring wheel to
sel ect the Serv . Serv
.menu .
X Pre ssthe 0063 or0064 button tosel ect
Tire Pressure Tire
Pressure.
X Pre ssthe 0076 button.
The multifunction displ aysho wsthe curr ent
tire pressu refor each tire orthe Tire pres‐ Tire
pres‐
sure sure
will will
be be
disp layed disp
layedafte r afte
rdriv ing driv
ing
a few minutes a
few minutesmessage.
X Pre ssthe 0064 button.
The multifunction displ aysho wsthe Use Use
Curr entPressuresas New Reference Curr
entPressuresas New Reference
Valu es Valu
esmes sage.
If you wish toconfi rm the restart:
X Pre ssthe 0076 button.
The Tire Tire
Press. Pres
s.Moni tor Moni
torRest arted Rest
artedmes -
sa ge appea rsinthe multifunction displ ay.
After driving forafew minu tes,thesystem
checks whethe rthe curr enttire pressu res are
wi thin thespecified rang e.The new tirepres-
su res are then accepted asrefe rence values
and moni tored .
If you wish tocan celthe restart:
X Pre ssthe 0038 button.
The tirepressu reval uesstore dat the last
res tart willcontinu eto be moni tored . Radio
typeapprov alfor the tire pres -
sure monitor Co
untry Radio
typeapprov alnumb er USA FCC
ID:MRXMW 2433A
FCC ICID:MR XGG4 Thisdev ice
comp lies with part15 ofthe FCC
rul es and with license exempt
RSS stand ardsof Indu stry Can-
ad a.Ope rationissu bject tothe
fol lowi ng condi tions.(1) This
dev icemay notcauseharmfu l
inter ference, and(2)Thisdev ice
mus tacce ptany inter ference
rece ived,incl uding inter ference
that may causeund esired oper-
ati on. Lepre sent apparei lest
confor med'indu strieCa nad a
ap plica bles auxap parei lsrad io
exem ptsdelicence. L'exploita-
tion estauthori seeauxdeu xcon-
di tions suiva ntes. (1).L'a ppare il
ne doitpa spro duire debro uil-
la ge, et(2) L'autisateu rde l'ap-
pa rei ldoi tacce ptertoutbro uil-
la ge rad ioelectri quesu bi,meme
si le bro uillag eest suscep tible
d'e ncomp romettrelefonc-
tionne ment.WARNING :Ch ang es
or mod ificati ons notexpr essively
ap pro ved bythe party respons i-
bl efor comp liance couldvoi dthe
us ers authori tyto ope rate the
equ ipment. Theterm "IC:"bef ore
the radiocerti fication numb er
only signifi esCanad atechni cal
spe cificati ons weremet.
FCC ID:MR XMC34MA4 This
dev icecomp lies with part15 of
the FCC rules and with license
exem ptRSS stand ardsof Indu s-
try Canad a.Ope rationissu bject
to the followi ng condi tions.(1)
Thi sdev icemay notcauseharm-
ful inter ference, and(2)This
dev icemus tacce ptany inter fer-
ence received,incl uding inter fer-
ence thatmay causeund esired
ope ration. Lepre sent apparei l
est confor med'indu strieCa nad a
ap plica bles auxap parei lsrad io
exem ptsdelicense .L'e xploita-
tion estauthori seeauxdeu xcon-
di tions suiva ntes. (1).L'a ppare il 30
0 Tire
press ureWheelsand tires

Page 303 of 330

Count
ry Ra
dio type approval number ne
doit pasprod uiredebrouil -
lage, et(2) L'aut isatuer del'ap-
pareil doitacceptertout brouil -
lage radioe lectrique subi,meme
si le brouil lageestsusc eptible
d'en comprom ettrelefon c-
tio nnemen t.WARN ING:Chang es
or modi ficatio nsnot expressive ly
appro vedbythepart yres pon si-
ble forcom plian cecould voidthe
users authorityto oper atethe
equipm ent.The term"IC: "befo re
th eradio certificat ion num ber
onl ysign ifies Canada technical
spec ificatio nswere met. Canada IC:
2546A-MW2 433A
IC: 2546A-GG4 Thisdevic ecom -
plies withpart15oftheFCC
rules andwith licenseexe mpt
RSS standar dsofIndust ryCan-
ada. Oper ationis subj ecttothe
follo wing condition s.(1) This
devic emay notcause harmful
int erf eren ce,and (2)This devic e
must accept any interf eren ce
rec eived ,inc ludin gint erf eren ce
th at may cause undesiredoper -
atio n.Le pres entappare ilest
con forme d'indust rieCanada
applic ablesauxappare ilsradio
exe mpt sde lice nse. L'ex ploit a-
tio nest auth oriseeaux deux con-
dit ion ssuivan tes.(1). L'app areil
ne doit pasprod uiredebrouil -
lage, et(2) L'aut isateur del'ap-
pareil doitacceptertout brouil -
lage radioe lectrique subi,meme
si le brouil lageestsusc eptible
d'en comprom ettrelefon c-
tio nnemen t.WARN ING:Chang es
or modi ficatio nsnot expressive ly
appro vedbythepart yres pon si-
ble forcom plian cecould voidthe
users authorityto oper atethe
equipm ent.The term"IC: "befo re
th eradio certificat ion num ber
onl ysign ifies Canada technical
spec ificatio nswere met.
IC: 2546A-MC34 MA4 Load
ingthevehicle Inst
ruction labels fortires and loads G
WAR
NING
Ove rloade dtir es can over heat ,causi nga
blowout .Ove rloade dtir es can also impair the
st eerin gand drivingchar acteris ticsand lead
to brak efailur e.Ther eis arisk ofacc iden t.
Obse rvetheload rating ofthetir es. The load
rat ing must beatleast halfoftheGAWR of
your vehicle.Nev erover load thetir es by
exc eedin gth emax imum load.
Two instruct ion labels onyour vehicle show the
max imum possibleload.
(1) TheTire andLoadin gIn for mat ionplacar dis
on theB- pillar onthedriv er'sside. TheTire
and Loadin gIn for mat ionplacar dshows the
max imum permissiblenum berofocc u-
pant sand themax imum permissibleveh icle
load. Italso contain sdet ails ofthetir esiz es
and correspon ding pressures fortires
moun tedatthefac tory.
(2) Thevehicle iden tificat ion plat eis on theB-
pillar onthedriv er'sside. Thevehicle iden -
tif icat ion plat einf orm syou ofthegro ss
veh icle weight rating .It is made upofthe
veh icle weight ,all veh icle occupant s,the
fuel andthecar go. You canalso findinf or-
mat ionabout themax imum grossaxle
weight rating onthefro ntand rear axle.
The maximum grossaxle weight rating is
th emax imum weight that can becar ried by
one axle (front orrear axle) .Nev erexc eed
th emax imum loadorthemax imum gross
axle weight rating forthefro ntor rear axle. 0043
B-pillar ,driv er'sside Load
ingthevehicle
301Wheels andtires Z

Page 304 of 330

Maximum
permissiblegross vehicle
we ight rating X
Specifi cation formaximu mgross vehicle
wei ght 0043islisted inthe Tire andLoad ing
Informatio npla card: "Thecombined weight of
occupa ntsand cargo shouldnever exceed
XXX kilog rams orXXX lbs."
The gross weight ofall vehicl eoccupa nts,load
and luggage must notexceed thespeci fied
valu e.
i The
speci ficatio nsshow non the Tire and
Load ingInformatio npla card inthe illustrati on
are exampl es.The maximu mpermi ssible
gross vehiclewei ght rating isvehicl e-speci fic
and may differfrom thatinthe illustrati on.
You canfind thevalidmaximu mpermi ssible
gross vehiclewei ght rating foryou rvehicl eon
the Tire andLoad ingInformatio npla card. Number
ofseats Maximu
mnumber ofseats 0043indica testhe
maximu mnumber ofoccupa ntsallowe dto
travel inthe vehicl e.This informa tioncanbe
found onthe Tire andLoad ingInformatio npla c-
ard.
i The
speci ficatio nsshow non the Tire and
Load ingInformatio npla card inthe illustrati on
are exampl es.The number ofseats isvehicl e-
speci ficand candiffe rfrom thedetai lsshow n.
The number ofseats inyou rvehicl ecan be
found onthe Tire andLoad ingInformatio n
pla card. De
terminin gthe correct loadlimit
Step-by-ste pins tructions The
followi ngsteps havebeen developed as
requ iredofall manufa cturers underTitle49,
Cod eof U.S. Federa lReg ulations, Part575pur-
sua ntto the "National Trafficand Motor Vehicle
Safety Actof1966".
X Step 1:Locate thestatement "Thecombined
wei ght ofoccupa ntsand cargo shouldnever
exceed XXXkgorXXX lbs." onyou rvehicl e’s
Tire andLoad ingInformatio npla card.
X Step 2:Determine thecombined weight of
the drive rand passengers thatwillbe ridi ngin
you rvehicl e.
X Step 3:Subtract thecombined weight ofthe
drive rand passengers fromXXXkilog rams or
XXX lbs.
X Step 4:The resu lting figureequ alsthe avail-
abl eamou ntofcargo andluggage loadcapa -
city. Forexampl e,ifthe "XXX "amou ntequ als
1400 lbsand there willbe five 150-lb pas-
sengers inyou rvehicl e,the amou ntofava il-
abl ecargo andluggage loadcapa cityis
650 lbs(1400 -750 (5x150) =650 lbs).
X Step 5:Determine thecombined weight of
lug gage andcargo being loaded onthe vehi-
cle. That weight may notsafel yexceed the
ava ilable cargo andluggage loadcapa citycal-
cula tedinstep 4. Example
:steps 1to 3
The followi ngtable showsexampl eson how tocalcu latetotal andcargo loadcapa cities withvarying
seati ngconfigu rationsandnumber andsize ofoccupa nts.Thefollowi ngexampl esuse aloa dlimi tof 302
Lo
ading thevehi cleWhee lsand tires

Page 305 of 330

1500
lbs(680 kg).This isfor illustration purposes only.Make sureyouareusing the actua lloa d
limi tfor you rvehi clestated onyou rvehi cle's TireandLoad ingInformati onplacard (Ypag e301) .
The grea terthe combi nedweight ofthe occupa nts,thelowerthe maximu mlugga geload.
Step 1 Example
1 Example
2 Example
3 Co
mbine dmaximum
we ight ofoccupants
and cargo (datafrom
the Tire andLoading
Info rmation placard) 1500
lbs(680 kg) 1500
lbs(680 kg) 1500
lbs(680 kg) Step
2 Example
1 Example
2 Example
3 Number
ofpeopl ein
the vehi cle(drive rand
oc cupants) 5 3 1
Di
stributio nof the
oc cupants Front:
2
Rea r:3 Front:
1
Rea r:2 Front:
1 Weig
htofthe occu-
pants Occupa
nt1:150 lbs
(68 kg)
Occupa nt2:180 lbs
(82 kg)
Occupa nt3:160 lbs
(73 kg)
Occupa nt4:140 lbs
(63 kg)
Occupa nt5:120 lbs
(54 kg) Occupa
nt1:200 lbs
(91 kg)
Occupa nt2:190 lbs
(86 kg)
Occupa nt3:150 lbs
(68 kg) Occupa
nt1:150 lbs
(68 kg) Gross
weight ofall
oc cupants 750
lbs(340 kg) 540
lbs(245 kg) 150
lbs(68 kg) Step
3 Example
1 Example
2 Example
3 Permiss
ibleload (maxi-
mum gross vehicle
we ight rating fromthe
Tire andLoading Infor-
mation placard minus
the gross weight ofall
oc cupants) 1500
lbs(680 kg)00F8
750 lbs(340 kg)=
750 lbs(340 kg) 1500
lbs(680 kg)00F8
540 lbs(245 kg)
=960 lbs(435 kg) 1500
lbs(680 kg)00F8
150 lbs(68 kg)=
1350 lbs(612 kg) Vehic
leiden tification plate
Even ifyou have calcu lated thetotal cargo care-
ful ly,you shou ldstill make surethatthegross vehi
cleweight rating andthegross axleweight
rating arenot exceed ed.Detail scan befound on
the vehi cleidentificati onplateon the B-pill aron
the drive r'sside ofthe vehi cle(Ypag e301) . Lo
ading thevehi cle
303Whee lsand tires Z

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Permissible
GrossVehicle WeightRating
(GVWR): thegross weight ofthe vehicle, allpas-
sengers, loadandtrailer load/noseweight (if
applicab le)must notexceed thepermissible
gross vehicle weight.
Gross AxleWeight Rating (GAWR): themaxi-
mum permissible weightthatcanbecarried by
one axle (front orrear axle).
To ensure thatyour vehicle doesnotexceed the
maximum permissible values(grossvehicle
weight andmaximum grossaxleweight rating),
have yourloaded vehicle (including driver,occu-
pants, cargo, andfulltrailer loadifapplicab le)
weighed onasuitable vehicleweighbridge. All
about wheelsand tires Uniform
TireQuality GradingStand -
ard s
Overview ofTire Quality GradingStand -
ard s Uniform
TireQuality Grading Standards areU.S.
governmen tspecifications. Theirpurpose isto
provide driverswithuniform reliableinformation
on tire performance data.Tiremanufacturers
have tograde tiresusing threeperformance fac-
tors: 0043tread weargrade, 0044tract iongrade and
0087 temperature grade.Theseregulations donot
apply toCanada. Nevertheless, alltires soldin
North America areprovided withthecorre-
sponding qualitygrading markings onthe side-
wall ofthe tire.
Quality gradescanbefound, whereapplicab le,
on the tire sidewal lbetween treadshoulder and
maximum sectionwidth. Example:
R Tread weargrade: 200
R Tra ction grade: AA
R Temper aturegrade: A
All passenger cartires must confor mto the stat-
utory safety requirements inaddition tothese
grades.
i The
actual values fortires arevehicle-spe-
cific andmay deviate fromthevalues inthe
illustration.
Tread wear The
treadwear gradeisacomparative rating
based onthe wear rateofthe tire when tested
under controlled condition son aspecified U.S.
governmen tcourse. Forexample, atire graded
150 would wearoneandone-half timesaswell
on the governmen tcourse asatire graded 100.
The relative performance oftires depends upon
the actual condition sof their use,however, and
may depart significantly fromthenorm dueto
variations indriving habits, service practices
and differences inroad characterist icsand cli-
mate.
Tra ction G
WARNING
The tract iongrade assigned tothis tireis
based onstraight- aheadbraking traction
tests, anddoes notinclude acceleration, cor-
nering, hydropla ning,orpeak tractionchar-
acteristic s.
! Avoid
wheelspin. Thiscanlead todamage to
the drive train.
The tract iongrades –from highest tolowest –
are AA, A,Band C.Those grades represent the
tire's abilityto stop onwet pavement asmeas-
ured under controlled condition son specified
governmen ttest surfaces ofasphalt andcon-
crete. Atire marked Cmay have poortraction
performance.
The safe speed onawet, snow covered oricy
road isalwa yslower thanondry road surfaces.
You should payspecial attentiontoroad condi-
tions when temperatures arearound freezing
point.
Mercedes-Ben zrecommen dsaminimum tread
depth of00CF in(4 mm) onallfour winter tires. 304
All
about wheelsand tiresWheels andtires

Page 307 of 330

Observe
thelegal lyrequired minimum tiretread
depth (Ypage 291). Winter tirescanreduce the
braking distance onsnow-covered surfacesin
comparison withsummer tires.Thebraking dis-
tance isstill much further thanonsurfaces that
are not icyorcovered withsnow. Takeappro-
priate carewhen driving.
Further information onwinter tires(M+S tires)
(Y page 292).
Temper ature G
WARNING
The temperature gradeforthis tireisestab-
lished foratire that isproperly inflatedand
not overloaded .Exc essive speed, underinfla-
tion, orexcessive loading,either separately or
in combination, cancause excessive heat
buil d-up andpossible tirefailu re.
The temperature gradesareA(the highest), B,
and C,representing thetire's resistance tothe
generation ofheat anditsabil itytodissipa te
heat when tested undercontrolled conditions
on aspecified indoorlaboratorytestwheel. Sus-
tained hightemperature cancause thematerial
of the tire todegenerate andreduce tirelife, and
excessive temperature canlead tosudden tire
failu re.The grade Ccorresponds toalevel of
performance whichallpassenger cartires must
meet under theFederal MotorVehicle Safety
Standard No.109. Grades Band Arepresent
higher levelsofperformance onthe labora tory
test wheel thantheminimum requiredbylaw. Tire
labeli ng
Overview 0043
Uniform TireQuali tyGradi ngStandards
(Y page 309)
0044 Department ofTransportation, TireIdentifi-
cation Number (Ypage 308)
0087 Maximum loadrating (Ypage 307)
0085 Maximum tirepressures (Ypage 296)
0083 Manufacturer
0084 Tire material (Ypage 308)
006B Tire size designation, load-bearingcapacity
and speed rating(Ypage 305)
006C Load index (Ypage 307)
006D Tire name
The markings described aboveareonthe tire in
addition tothe tire name (sales designation) and
the manufacturer's name.
i Tire
data isvehicle-specific andmay deviate
from thedata inthe example.
Tire size designation, load-bearing
capacity andspeed rating G
WARNING
Exc eeding thestated tireload-bea ringcapa-
city and theapproved maximum speedcould
lead totire damage orthe tire bursting. There
is arisk ofaccident.
Therefore, onlyusetiretypes andsizes
approved foryour vehicle model.Observe the All
about wheelsand tires
305Wheels andtires
Z

Page 308 of 330

tire
load rating andspee dra ting required for
yo ur 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 impri nted inthe tire wallma y
not conta inany letters orma yconta inone letter
tha tpre 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 trucktire sacc ording toU.S. manuf actu ring
sta nda 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 r-
ge ncy .
Tire width: tirewidth 0043sho wsthe nomi naltire
wi dth inmi llim ete rs.
As pec tratio :as pe ct ratio 0044 isthe size ratio
be twe enthe tire height and tirewidth and is
sho wninpe rcen t.The aspe ctratio iscal cul ate d
by divid ing the tire width bythe tire height.
Tire code: tire code0087 speci fiesthe tire type.
"R "rep resents radial tire s;"D" represents diag -
ona ltire s;"B" represents diag ona lra dial tire s.
Op tional ly,tire swi th ama xim um spee dof ove r
149 mph (240 km/h )ma yha ve "ZR" inthe size de
scri ption, dependi ng on the manuf actu rer
(e .g. 245/4 0ZR 18) .
Rim diamete r:rim diam ete r0085 isthe diam ete r
of the bead seat, not thediam ete rof the rim
fla nge .Th erim diam ete ris sp eci fiedin
inch es(in).
Lo ad-b earingin dex :lo ad -be aring index0083 isa
num erical cod etha tsp eci fiesthe maxim um
lo ad -be aring capacityof atire .
Do not overload the tiresby exce eding the
sp eci fiedload limi t.Th ema xim um permi ssible
lo ad can befou ndonthe vehicle'sTire and
Loa ding Info rma tionplaca rdon the B-pi llar on
the driver 'sside (Ypage 301) .
Exam ple:
Loa d-bearin gind ex91 indicates ama xim um
lo ad of1,3 56lb(61 5kg )tha tthe tirescan bear.
For furthe rinf orm ation onthe maxim um tire
lo ad inkilog rams and lbs, see(Y page 307 ).
For furthe rinf orm ation onthe load bearing
ind ex, see"L oa dind ex" (Ypage 307 ).
Spe edratin g:spee dra ting 0084speci fiesthe
ap pro ved maxim um spee dof the tire.
i Ti
re dataisveh icle-s pecificand mayde via te
fro mthe data inthe exampl e.
Re gardl essof the spee dra ting ,al wa ysobserve
the spee dlimi ts. Drivecar efully and adaptyo ur
dri vin gsty leto the trafficcond itions .
Summe rtire s In
dex Spe
edratin g Q up
to100 mph (160km/h ) R up
to106 mph (170km/h ) S up
to112 mph (180km/h ) T up
to118 mph (190km/h ) H up
to130 mph (210km/h ) V up
to149 mph (240km/h ) W up
to168 mph (270km/h ) Y up
to186 mph (300km/h ) ZR
...Y up
to186 mph (300km/h ) ZR
...(. .Y) ove
r186 mph (300 km/h ) ZR ove
r149 mph (240 km/h ) R
Op tional ly,tire swi th ama xim um spee dof
ove r149 mph (240km/h )ma yha ve "ZR" in 30
6 Al
labo utwhee lsan dtire sWhe elsand tires

Page 309 of 330

the
size descri ption, dependi ng on the man-
uf actu rer(e.g. 245/4 0ZR 18 ).
The servi ce speci ficati on isma de up ofload -
be aring index0083 and spee dra ting 0084.
R Ifthe size descri ption ofyour tire includes
"Z R" and thereareno servi ce speci ficati ons ,
as kthe tire manuf actu rerinord erto findou t
the maxim um spee d.
If ase rvi ce speci ficati on isav ailabl e, the max-
im um spee dis limi ted according tothe spee d
ra ting inthe servi ce speci ficati on. Exam ple:
245/4 0ZR 18 97Y.Inthis example ,"97 Y"is
the service specifica tion.Theletter "Y"rep-
resents thespeed rating. Themaximum
speed ofthe tire islimi ted to186 mph
(300 km/h).
R The size descriptio nfor alltires withmaxi-
mum speed sof over 186mph (300 km/h)
must include "ZR"and theservice specifica -
tion must begiven inparentheses .Example:
275/40 ZR18 (99 Y).Speed rating"(Y)"indi-
cates thatthemaximum speedofthe tire is
over 186mph (300 km/h ).Ask thetire man-
ufacturer aboutthe maximum speed.
All -weather tiresandwintertires 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) i
Not
alltires withtheM+S marking provide
the driving characteristics ofwinter tires.In
addi tion tothe M+S marking, wintertiresalso
have the004D snowfla kesymbo lon the tire
wal l.Tires withthismarking fulfillthe requi re-
ments ofthe Rub ber Manufa cturers Associa-
tion (RMA) andtheRub ber Association of
Cana da(RAC) regard ingthe tire traction on
snow. Theyhave been especia llydevel oped
for driving onsnow.
An electronic speedlimiterprevents yourvehi-
cle from exceeding aspeed of130 mph
(210 km/h).
The speed ratingoftires mounted atthe factory
may behigher thanthemaximum speedthatthe
electronic speedlimiterpermits. Make
surethatyourtires have therequi red
speed rating, e.g.when buying new tires. The
requi redspeed ratingforyou rvehicle canbe
found inthe "Tires" section (Ypage 315).
Further information aboutreadi ngtire data can
be obtained fromanyqualifiedspecia listwork-
shop.
Load index In
addi tion tothe load -bearing index,load
index 0043may beimprinted aftertheletters that
identify speedratingonthe sidew allofthe tire.
Speed rating(Ypage 305).
R Ifno specifica tionisgiven: notext (asinthe
example above),represents astandard load
(SL) tire
R XL orExtr aLoad: represents areinforced tire
R Light Load: represents aligh tload tire
R C, D, E:represents aload range thatdepends
on the maximum loadthatthetire can carry at
a certain pressure
i Tire
data isvehicle -specific andmay devia te
from thedata inthe example .
Maximum loadrating 1
Or M+S 004D forwinter tires. Al
labout wheelsand tires
307Wheelsand tires Z

Page 310 of 330

Maximum
tireload 0043isthe maximum permis-
sible weight forwhich thetire isapproved.
Do not overload thetires byexceeding the
specified loadlimit. Themaximum permissible
load canbefound onthe vehicle's Tireand
Loading Informationplacard onthe B-pillar on
the driver's side(Ypage 301).
i The
actual values fortires arevehicle-spe-
cific andmay deviate fromthevalues inthe
illu stration.
DOT, TireIdentification Number(TIN) US
tire regulations stipulatethatevery tireman-
ufacturer orretreader mustimprint aTIN inor on
the sidewa llof each tireproduced. The
TINisaunique identification number.The
TIN enables thetire manufacturers orretreaders
to inform purchasers ofrecalls andother safety-
relevant matters. Itmakes itpossible forthe
purchaser toeasily identify theaffected tires.
The TINismade upofmanufacturer identifica-
tion code 0044,tire size 0087,tire type code 0085and
manufacturing date0083.
DOT (Departm entofTra nsporta tion):tire
symbol 0043marks thatthetire complies withthe
requirements ofthe U.S. Departmen tof Trans-
portation.
Manufact ureridentification code:manufac-
turer identification code0044provides detailson
the tire manufacturer. Newtireshave acode
with twosymbols. Retreaded tireshave acode
with foursymbols.
For further information aboutretreaded tires,
see (Ypage 315).
Tire size: identifier 0087describes thetire size.
Tire type code: tiretype code 0085can beused by
the manufacturer asacode todescribe specific
characterist icsofthe tire. Date
ofmanufa cture:dateofmanufacture 0083
provides information abouttheage ofatire. The
first andsecond positions represent theweek of
manufacture, startingwith "01" forthe first cal-
endar week. Positions threeandfour represent
the year ofmanufacture. Forexample, atire that
is marked with"3208", wasmanufactured in
week 32in2008.
i Tire
data isvehicle-specific andmay deviate
from thedata inthe example.
Tire character istics This
information describesthetype oftire cord
and thenumber oflaye rsinsidewa ll0043 and
under tiretread 0044.
i Tire
data isvehicle-specific andmay deviate
from thedata inthe example.
Defini tionofterm sfor tires andloading Tire
plycomposition andmaterial used
Describes thenumber ofplies orthe number of
laye rsof rubber-coated fabricinthe tire tread
and sidewa ll.These aremade ofsteel, nylon,
polyester andother materials.
Bar
Metric unitfortire pressure. 14.5038pounds
per square inch(psi) and100 kilopascals (kPa)
are the equival entof1bar.
DOT (Departm entofTra nsporta tion)
DOT-m arkedtiresfulfill therequirements ofthe
U SDepartmen tof Transportation .
Norm aloccupant weight
The number ofoccupants forwhich thevehicle
is designed multiplied by68 kilograms (150lbs). 308
All
about wheelsand tiresWheels andtires

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