2020 MERCEDES-BENZ AMG GT wheel

If
th er eis asubs tantia lpr ess ureloss orifth e
tir ete mp eratur eis exc essiv e,youwill bewarned
in thefo llo wing ways:
R viadisp lay messa ges(/ page39 1)
R viathe0077 warning lam pin theins trument
clus ter(/ page41 9)
Th etir epr es su re monit oring system isonl yan
aid. Itis thedr iver's responsibili tyto setth etir e
pr essur eto there comme ndedcoldtirepr ess ure
su itab leforth eoper ating situation .Se tth etir e
pr essur efo rcold tires using atir epr essu re
ga ug e. No tethat thecor rect tirepr ess urefo rth e
cur rent operati ng situa tionmu stfirs tbe taught -
in to thetir epr essur emonit oring system.
In mos tcases, thetir epr essur emonit oring sys‐
te m wil lau tomatical lyupdat eth ene wrefere nce
va lues afte ryo uha ve chang edthetir epr essur e.
Yo ucan ,ho we ver,also updat eth ere fere nce val‐
ues byrestar tin gth etir epr essur emonit oring
sy stem manually (/page328). Sy
stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions:
R thetir epr essur ehas been setincor rectly
R ther eis asudden pressur eloss caused, for
ex am ple, byafo re ign obje ctpene trating the
tir e
R ther eis amalfunct ioncaused byano ther
ra dio signal source
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R noteson tirepr essur e(/ page322)
Chec kingthetir epr essur ewit hth etir epr es‐
sur emoni toring system
Re quirement s:
R The ignit ionisswitc hedon.
On- boar dcom puter:
4 Service 5
Tires
One ofthefo llo wing displa ysappear s:
R Cur rent tirepr ess ureand tirete mp eratur eof
th eindividual wheels: R
Tire pressure willbedisplayed afterdriving a
few minutes
R Tire Pressure MonitorAct ive: thete ac h-in
pr oce ssofthesy stem isno tye tcomple te.
The tirepr essur esarealr eady being moni‐
to re d. #
Com pareth etir epr essur ewit hth ere com‐
mend edtirepr ess urefo rth ecur rent operat‐
ing cond ition (/ page 324). Obse rveth e
no teson tirete mp eratur e(/ page322). Wheels
andtires 32
7

%
The values displa yedin themultifunc tiondis‐
pla yma yde viat efrom those ofthetir epr es‐
sur ega ug eas they referto sea leve l.At high
altitudes, thetir epr essur eva lue indic ated by
a pr essur ega ug ear ehigh erthan those
sho wnbytheon- boar dcom puter.In this
case, donotre duce thetir epr essur e.
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R Noteson tirepr essur e(/ page322)
Re star ting thetir epr essur emoni toring sys‐
te m
Re quirement s:
R The recomme ndedtirepr ess ureis cor rectl y
se tfo rth ere spectiv eoper ating status on
eac hof thefo ur wheel s(/ page32 2).
Re star tth etir epr essur emonit oring system in
th efo llo wing situat ions:
R The tirepr essur ehas chang ed.
R The wheels ortires have been chang edor
ne wlyins talled. On-
boar dcom puter:
4 Service 5
Tires #
Swipe down wardson Touc hCon trol on the
lef t-hand sideofthesteer ing wheel.
The Use Current Pressures asNew Refer-
ence Values? messageis sho wninthemulti‐
func tion displa y. #
Tobegin restar t,pr ess Touc hCon trol on the
lef t-hand sideofthesteer ing wheel.
The Tire Press. MonitorRestart edmessag eis
sho wninthemultifunc tiondispla y.
Cur rent wa rning mess ages aredele tedand
th eye llo w0077 warning lam pgoes out.
Af teryo uha ve been driving fora fe w
minut es,thesy stem checks whe ther thecur‐
re nt tirepr ess ures arewi thin thespecif ied
ra ng e. The current tirepr ess ures areth en
accep tedas refere nce values andmon itor ed.
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R Noteson tirepr essur e(/ page322) Ra
dio -equipme ntappr oval of thetir epr es‐
sur emoni toring system
Ra dio equipme ntappr oval number s Co
untr yR adiotype approval number
Ca nada IC:2546A -GG4T
IC: 2546A -DG6W2D4
IC: 2546A -MC34MA4
Le présent appareil estconf orme
au xCNR d'Indu strie Canada
applicables auxappar eilsradio
exe mptsde licence .L'e xploita ‐
tio nes tau torisée aux deux con‐
ditions suivantes:
(1) l'appa reilne doit pasproduir e
de brouillag e,et
(2) l'utilisat eurdel'appar eildoit
accep terto ut brouillag era dioé‐
lectr ique subi, même sile
br ouillag ees tsuscep tibled'en
com prome ttre lefonctio nneme nt. 32
8
Whe elsand tires

%
The datasho wnintheillus tration isexam ple
dat a.
The Tire and Loadi ngInfo rm atio nplacar dsho ws:
R Maximum numberofseats 2accor dingto
th emaximum numberofpeople permitt edto
tr ave lin theve hicle.
R Maximum permissible load3com prises the
gr os swe ight ofall vehicle occupants, load
and luggage. R
Recomme ndedtirepr ess ures 1 forcold
tir es. The recomme ndedtirepr ess ures are
va lid forth emaximum permissible loadand
up tothemaximum permissible vehicle
speed.
Please alsonote:
R Information onper missib lewe ight sand loads
on theve hicle identif ication plate
(/ page35 1).
R Information ontirepr essur ein thetir epr es‐
sur eta ble (/ page32 4).
Fu rther relat ed subje cts:
R Determ inin gth emaximum permissible load
(/ page330)
R Noteson tirepr essur e(/ page322). De
term ining thema xim um permis sible load The
follo wing steps have been developed as
re qu ired ofall manuf acturersunder Title 49,
Co de ofU.S. Feder alRe gulations, Part57 5pur‐
sua nttothe"N ational Traf fic and MotorVe hicle
Saf etyAc tof 1966". #
Ste p1: loca tethest at emen t"The combined
we ight ofocc upant sand cargoshould never
exc eed XXX kgorXXX lbs." ("The combined
we ight ofocc upant sand cargoshould never
exc eed XXX kgorXXX lbs.") onyour vehicle's
Ti re and Loadi ngInfo rm atio nplacar d. #
Ste p2: determ ine thecombin edweight of
th edr iver and passeng ersth at will betravel‐
ing inyour vehicle. #
Ste p3: subtr act thecombin edweight ofthe
dr iver and passeng ersfrom XXX kgor
XXX lbs. #
Ste p4: there sulting figur eeq uals theper‐
missible cargoand luggageload capacity .Fo r
ex am ple: If"XXX "eq uals 1400 lbs and ther e
ar efive occupant sin your vehicle witha
we ight of150lbs eac h,themaximum cargo
and luggageload capacity is650 lbs(1,400 -
75 0(5 x15 0) =650 lbs). #
Ste p5: determ ine thecombin edweight of
lugg ageand cargothat theve hicle willbe
car rying. Forsaf etyre ason s,this we ight may
no tsaf elyexc eed theav ailable cargoand lug‐
ga ge load capac itycalc ulatedinstep 4. 330
Wheels andtires

Ev
en ifyo uha ve cal cul ated thetot alload care‐
full y,yo usho uld still mak esur eth at themaxi‐
mum permissible gross mass andthemaximum
gr oss axle weight rating ofyour vehicle areno t
exc eeded. Details can befound ontheve hicle
identif ication plate. #
Have your loaded vehicle –including driver ,
occupants andload –we ighed onave hicle
we ighbr idge.
The measur edvalues mayno texc eed the
maximu mper missi blevalues stat ed on the
ve hicle identif ication plate. Fu
rther relat ed subje cts:
R Calculation exam ple forde term inin gth emax‐
imum load(/page33 1)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page32 9)
R Tire pressur eta ble (/ page32 4)
R Vehicle identif ication plate Calculation
exam ple forde term ining the
ma ximum load The
follo wing table showsexam ples ofhowto
cal cul atetot aland load capac ities wit hva rying seatin
gcon figur ations anddiffere nt num bers
and sizes ofocc upant s.The follo wing exam ples
use amax imum loadof1500 lbs (680 kg).This
is forillus tratio npur pos esonly.Mak esur e
yo uar eusin gth eactual loadlimit foryo ur vehi‐
cle stat ed on your vehicle's Tire and Loadi ng
In fo rm atio nplacar d(/ page32 9).
The high erthewe ight ofall theoccupant s,the
smaller themaximum loadforlug gage .
Ste p1 Ex
am ple 1E xamp le2
Combine dmaxim umweight ofocc upant sand
load (datafrom theTire and Loadi ngInfo rm atio n
placar d) 15
00 lbs (680 kg)1 500lbs(680 kg) Wheels
andtires 33
1

Ste
p2 Ex
am ple 1E xamp le2
Nu mb erofpeople intheve hicle (driver and
occupants) 51
Dis trib uti on oftheoccupant sF ront:2
Re ar:3 Fr
ont :1
We ight ofocc upant sO ccupant1:150lbs (68 kg)
Occupant 2:180lbs (82 kg)
Occupant 3:160lbs (73 kg )
Occupant 4:140lbs (63 kg)
Occupant 5:120lbs (54kg ) Occupant
1:200 lbs(91 kg )
To talwe ight ofall occ upant s7 50lbs (340 kg)2 00lbs (91 kg ) Ste
p3 Ex
am ple 1E xamp le2
Pe rm issible load(maxim umgros sve hicle weight
ra ting from theTire and Loadi ngInfo rm atio n
placar dmin usthegr oss weight ofall occ upant s)15
00 lbs (680 kg)00F8 75 0lbs (340 kg)= 75 0lbs
(340 kg) 15
00 lbs (680 kg)00F8 200 lbs(91 kg )= 13 00 lbs
(589 kg) 332
Wheels andtires

and
one-h alftim esaswellon thego vernment
te st trac kas atir egr ad ed 100.
The relativ eper form anc eof tires depen dsupon
th eactual conditions oftheir use, howe ver,and
ma ydepar tsign ifican tly from thenor mdue to
va riatio nsindrivin ghabit s,ser vicepr act icesand
dif fere nces inroad charact eristic sand climate
con dition s.
Tr actio ngr ade &
DANG ER Risk ofacc iden tdue toinade‐
qu atetract ion
The tract ion grade assig nedtothis tireis
based onstra ight -ahead brakin gtract ion
te sts, and does notinclude either acceler a‐
tion, corner ing, hydroplaning orpeak traction
ch aract eristic s. #
Alw aysadap tyo ur drivin gst yle and
dr ive at aspeed tosuit thepr ev ailin g
traf fic and weather condition s. *
NO
TEDama getothedr ivet ra in from
wheelspin #
Avoid wheelspin. The
traction grades –from highes tto lowe st–
ar eAA ,A, Band C.Tho segrad es repr esent the
tir e'sab ility tostop onwetpa vement asmeas‐
ur ed under controlledconditions onspecif ied
go vernment test sur faces mad eof asp haltand
concr ete.
Te mp eratur egr ade &
WARNIN GRisk ofacci dent from tire
ove rheating andtirefa ilur e
The temp eratur egr ade forth is tireis es tab‐
lished fora tir eth at isproper lyinflat ed and
no tove rloaded. Excessiv espeed, underinfla‐
tion, orexc essiv eloading, either separ ately
or incombin ation,cancause excessiv eheat
build-up andpossible tirefa ilur e. #
Obser vethere comme ndedtirepr es‐
su resand regular lych eckth etir epr es‐ sur
eof all tires including thespar e
wheel. #
Adjus tth etir epr essur eas neces sary. The
temp eratur egr ades areA (the highes t),B
and C.The yre pr esent thetir e's resis tance tothe
ge ner ation ofhea tand itsability todissipat e
heat when tested under controlled conditions on
a specif iedindoor laborator yte st wheel. Sus‐
ta ined hightemp eratur ecan cause themat erial
of thetir eto deg ener ateand reduce tirelife, and
exc essiv ete mp eratur ecan lead tosudden tire
fa ilur e.Grade Ccor responds toaleve lof per‐
fo rm anc ewhic hall passe nger car tires mus t
mee tunde rth ere qu iremen tsof theUS Depar t‐
ment ofTrans portatio n. DO
T,Tire Iden tificat ionNumbe r(TI N) US
tirere gulations stipulat eth at eve rytire man‐
uf actu reror retrea de rmu stimprint aTIN inor
on theside wallof eac htir epr oduced. 33
4
Wheels andtires

Ne
verexc eed maximum tirepr essur e1 speci‐
fi ed forth etir e. Inf
ormat ionontirech aract eristics %
The datasho wnintheimag eis exam ple
dat a.
This informat iondesc ribes thetype oftirecor d
and thenumber oflaye rs inside wall1 and
under tiretread 2. Ti
re size designation, load-bearingcapacity ,
speed ratin gand load inde x &
WARNIN GRisk ofinju rythro ugh exceed‐
ing thespecif iedtireload rating orthe
per 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. 1
Preceding letter
2 Nominal tirewidt hin millime ters
3 Aspe ctratio in%
4 Tire code
5 Rim diame ter
6 Load-be aring inde x
7 Speed rating
8 Loadind ex
% The datasho wnintheimag eis exam ple
dat a.
In fo rm atio nabout readin gtir edat acan be
obt aine dfrom anyqu alif ied spec ialistwo rkshop. 336
Wheels andtires

Pr
eceding letter 1 1:
R Without :passeng ervehicle tires accor dingto
Eur opeanma nuf actu ring standar ds.
R "P": passe nger vehicle tires accor dingtoUS
manuf acturingstandar ds.
R "LT": light truc ktir es acc ordin gto US manu‐
fa ctur ingstandar ds.
R "T": com pact emer gency sparewheels with
high tirepr essur eth at areon lyde signe dfo r
te mp orar yuse inan emer gency .
As pec tra tio 3 3:
Ra tio betwee ntir ehe ight and tirewi dthin pe r‐
cent (tire height divided bytirewi dth).
Tir eco de 4 4
(tire type ):
R "R"ra dial tire
R "D": bias plytire
R "B": bias beltedtires
R "ZR": radial tirewit hamaximum speedabove
14 9mp h(2 40 km/h) (optional) Rim
diame ter5 5:
The diam eter ofthebead seat(notth ediame ter
of therim flang e).The rim dia me teris specif ied
in inc hes (in).
Load-be aring inde x6 6:
Numer icalcode that spec ifies themaximum
load-bear ingcapacity ofatir e(e.g. "91" cor re‐
sponds to1356 lbs (615 kg)).
The load-bear ingcapacity ofthetir emus tbe at
leas thalf theper missible axleload ofyour vehi‐
cle. Donotove rload thetir es by exc eeding the
specif iedload limit.
See also:
R Maximum permissible loadontheTire and
Loadi ngInfo rm atio nplacar d(/ page32 9)
R Max imum tireload (/page33 5)
R Load index
Speed ratin g7 7:
Spe cifiesth eappr oved maximum speedofthe
tir e. %
Anelectr onicsp ee dlimi terpr eve nts your
ve hicle from exceeding aspeed of130mp h
(2 10 km/h) .
Ma kesur eth at your tires have there qu ired
speed rating .Yo ucan obtain informat iononthe
re qu ired speed rating from anauthor ized
Mer cedes-B enzCent er.
Summ ertires Inde
xS peedra tin g
Qu pto 100mp h(1 60 km/h)
Ru pto 106mp h(170 km/h)
Su pto 112mp h(1 80 km/h)
Tu pto 118mp h(1 90 km/h)
Hu pto 130mp h(210 km/h)
Vu pto 149mp h(2 40 km/h)
Wu pto 168mp h(2 70 km/h)
Yu pto 186mp h(3 00 km/h) Whee
lsand tires 33
7