R
Tire pressure willbedisplay edafter driving a
few minutes
R Tire Pressure MonitorActive: 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 323). Observeth e
no teson tirete mp eratur e(/ page32 1).
% 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.
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 onall
of thewheels (/page32 1). 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 messag eis sho wninthemulti‐
func tion displa y. #
Torestar t,pr ess Touc hCon trol on thelef 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. Be
sureto also payatt ent ion tothefo llo wing
re lat ed topic:
R Noteson tirepr essur e(/ page32 1) Loading
theve hicl e No
teson Tire and Loading Information plac‐
ar d &
WARNIN GRisk ofacci dent from overloa‐
ded tires
Ov erloaded tires ma yove rheat and burstas a
con sequenc e.Ov erloaded tires can also
im pair thesteer ing and handling charact eris‐
tic sand lead tobrak efa ilur e. #
Obser vetheload-bear ingcapacity of
th etir es. #
The load-bear ingcapacity mustbe at
leas thalf thegr oss axle weight rating of
th eve hicle. #
Neverove rload thetir es by exc eeding
th emaximum load. 326
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 classes, from highes tto lowe st,ar e
AA ,A, Band C.Tho segrad es repr esent thetir e's
ability tostop onwetpa vement asmeasu red
unde rco ntro lled condition son spec ified govern‐
ment test sur faces ofasp haltand concr ete. A
tir emar kedC ma yha ve poor traction perform ‐
anc e.
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 eFe der alMo torSaf etySt andar d
No. 109. Grade sB and Arepr esent higher leve ls
of per form anc eon thelabor ator yte st wheel
th an theminimum requ ired bylaw. 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. 332
Wheels andtires
%
The datasho wnintheimag eis exam ple
dat a.
The TINisauniq ueiden tificat ion num berto
ident ifytires and comprises thefo llo wing:
R DOT(Depar tment ofTranspo rtation ):tir e
symb olmar ks1 indic atingth at thetir e
com plies withth ere qu iremen tsof theUS
Depar tmentof Trans portatio n.
R Man ufac tur eride ntificat ion code: manu‐
fa ctur eridentif ication code 2cont ains
de tails ofthetir emanuf acturer.Ne wtires
ha ve acod ewit htw osymbo ls.Retrea de d
tir es have acod ewit hfo ur symb ols.Further
inf ormation onretrea de dtir es (/ page 339). R
Tire size: identif ier3 descr ibesthetir e
size.
R Tire type code: tiretyp ecod e4 can be
us ed bythemanuf actureras acode to
descr ibespecif icch aract eristic sof thetir e.
R Manuf acturingdate:manuf acturingdate
5 prov ides informatio nabout theag eof a
tir e. The 1stand 2nd position sre pr esent the
cal enda rwe ek and the3r dand 4thposition s
st at eth eye ar ofman ufact ure(e. g."32 08"
re pr esent sth e32n dwe ek of2008 ). Inf
ormat iononthema xim um tireload %
The datasho wnintheimag eis exam ple
dat a.
Max imum tireload 1isthemaximum permissi‐
ble weight forwhi chthetir eis appr oved.
Do notove rload thetir es by exceed ingthespeci‐
fi ed load limit. Themaximum permissible load
can befound ontheve hicle's Tire and Loadi ng
In fo rm atio nplacar don theB-pillar onthedr iv‐
er's side (/page326). Specif
ications formaxi mum tirepr es sur e %
The data sho wnintheimag eis exam ple
dat a. Whee
lsand tires 333
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. 33
4
Wheels andtires
Inde
xS peedra tin g
ZR ...Y 4
upto186mp h(3 00 km/h)
ZR ...(..Y) 4
over18 6mp h(3 00 km/h)
ZR 4
over14 9mp h(2 40 km/h) R
Specifying thespeed rating asthe"ZR" index
in tirecode 4isop tion alfortir es up to
18 6mp h(3 00 km/h) .
R Ifyo ur tireco de 4 includes "ZR"andther e
is no speed rating 7,find outwh atthemax‐
imum speed isfrom thetir emanuf acturer.
R Ifload-bear inginde x6 and speed rating 7
ar ein brac kets, themaximum speedrating of
yo ur tireis abo ve186mp h(300 km/h). To
fi nd outth emaximum speed,askthetir e
manuf acturer. All-w
eather tires and wint ertires Inde
xS peedra tin g
Q M+S 5
upto100mp h(1 60 km/h)
T M+S 5
upto118mp h(190 km/h)
H M+S 5
upto130mp h(210 km/h)
V M+S 5
upto149mp h(2 40 km/h) Wi
nter tires bear the004D snowflak esymbol
and fulfillthere qu iremen tsof theRu bber Manu‐
fa ctur ersAssoci ation (RMA) andtheRu bber
Assoc iation ofCanada (RAC)rega rding thetir e
tra ction onsno w.
Load index8 8:
R Nospec ificat ion given: standar dload (SL)
tir e
R "XL" or"Ex tra Load": extra load tireor rein‐
fo rc ed tire
R "Light Load": lightloadtire R
"C", "D", "E":aload rang eth at depen dson
th emaximum loadthat thetir ecan carryata
cer tain pressur e Def
inition ofterm sfo rtir es and loadin g
Ti re stru ctu reand charact eristics :descr ibes
th enumber oflaye rs or thenumber ofrubber -
coat edbelts inthetir econ tact surface and the
tir ewa ll.These aremade ofsteel, nylon, poly‐
es terand other materials.
Bar: metric unit fortir epr essu re.
14 .5038 pounds persquar einc h(p si) and
10 0kilop ascal(kP a)istheeq uiv alent ofone bar.
DO T(Depar tment ofTranspo rtation ):DO T-
mar kedtir es fulf illthere qu iremen tsof the
US Depar tment ofTrans portatio n.
Av erag ewe ight oftheve hicl eoc cupants: the
num berof vehicle occupants forwhi chtheve hi‐
cle isdesigned, multiplied by150lb (68 kg).
4 "ZR" stat ed inthetir ecode.
5 Or "M+S 004D" forwint ertires 336
Wheel sand tires
Un
ifor m Tire Quality Grading Standar ds:a
unif orm standar dto grade thequ alit yof tires
wit hre ga rd totrea dqu alit y,tiretracti onand
te mp eratur ech aract eristic s.The qualit ygr adin g
asses smentismade bythemanuf acturerfollo w‐
ing spec ificat ions from theU. S. government. The
qu alit ygr ade ofatir eis im print ed on theside
wa llof thetir e.
Re comm endedtir epr essu re:th ere comme n‐
ded tirepr ess ureis thetir epr essur especif ied
fo rth etir es mount edtotheve hicle atthefa c‐
to ry.
The tireand information table con tains there c‐
omme ndedtirepr ess ures forcold tires, themax‐
imum permissible loadandthemaximum per‐
missible vehicle speed.
The tirepr essur eta ble con tains there comme n‐
ded tirepr ess ures forcold tires under various
oper ating condit ions,i.e.loading and/orspeed
of theve hicle.
Incr eased vehicl ewe ight duetooptiona l
eq uip ment :th ecombin edweight ofall standar d
and optio nal equipme ntavailable forth eve hicle, re
ga rdless ofwhe ther itis actually installed on
th eve hicle ornot.
Rim: thepar tof thewheel onwhic hth etir eis
ins talled.
GA WR (Gross AxleWe ight Ratin g):th eGA WR
is themaximum permissible axleload. The
actual loadonanaxle mustne verexc eed the
gr os saxle weight rating .The gross axlewe ight
ra ting canbefound ontheve hicle identif ication
plat eon theB‑pillar onthedr iver's side.
Speed ratin g:thespeed rating ispa rtof thetir e
identif ication .It specif iesthespeed rang efo r
whic hatir eis appr oved.
GV W(Gr oss Vehicl eWe ight ):th egr oss vehicle
we ight comprises thewe ight oftheve hicle
including fuel,tools, thespar ewheel, accesso‐
ri es installed, occupant s,lugg ageand thetrailer
dr aw bar nose weight ,if applicable. Thegros s
ve hicle weight mustno texc eed thegr oss vehicle
we ight rating GVWR asspecif iedontheve hicle
identif ication plateon theB‑pillar onthedr iver's
side.
GV WR (Gross Vehicl eWe ight Ratin g):th e
GV WR isthemaximum permitt edgross weight of
thefully laden vehicle (weight oftheve hicle
including allaccessor ies,occupants, fuel,lug‐
ga ge and thetrailer draw bar nose weight ifappli‐
cable). Thegros sve hicle weight rating issp eci ‐
fi ed on theve hicle identif ication plateon the
B‑pil laron thedr iver's side.
Maxim umweight ofthelad envehicl e:the
maximu mwe ight isthesum ofthecurb weight
of theve hicle, thewe ight oftheaccesso ries, the
maximu mloa dand thewe ight ofoption aleq uip‐
men tins talled atthefa ct or y.
Kilop ascal(kP a):metric unit fortir epr essu re.
6.9 kPacor responds to1psi .Ano ther unit for
tir epr es su re isbar .10 0kilop ascal(kP a)equals
1 bar .
Lo ad inde x:inadd ition totheload-bear ing
inde x,theload indexma yalso beimprint ed on
th eside wallof thetir e. This specif iestheload-
bear ingcapacity ofthetir emor epr ecisel y.
Cur bwe ight :th ewe ight ofave hicle withstand‐
ar deq uipme ntinc ludin gth emaximum capacity
of fuel, oiland coolant .It also includes theair
con ditionin gsy stem and option aleq uipment if Wheels
andtires 33
7
Cha
nging awheel No
teson selecting, installing andreplac ing
tir es Mer
cedes -AMG vehicl es:obse rveth eno tesin
th eSupplement .Yo uco uld other wise failto rec‐
ogni zedangers. &
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 339
In
addi tion, thetir egr ip isgreatl yre duced at
a low outside temp eratur eand tireru nning
te mp eratur e. #
ActivateESP ®
and adaptyo ur drivin g
st yle accor dingly. #
Use M+S tires atoutside temp eratur es
belo w50 °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) use win‐
te rtir es orall-seaso ntir es mar kedM+S for
all wheels .
Wi nter tires bearing the004D snowflak esym‐
bol inaddition totheM+S marking prov ide
th ebes tpossible grip inwintr yro ad con di‐
tio ns.
R ForM+S tires, onlyuse tires 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-flat 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(/ page32 1)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page32 6)
R Tire size designation, load-bearing cap acity,
spe edrating andload index(/ pag e334 )
R Tire pressur eta ble (/ page323)
R Noteson theemer gency sparewheel
(/ page34 8) Wheels
andtires 34
1