Further related subjects:
RNo tesont irep ressur e(→page356)
RTire pressur etable (→pag e357)
RTire and Loading Info rmatio nplacard
(→pag e361)
Tire pressur emonitoring sy stem
Fu nction of thet irep ressur emonitoring sys‐
te m
&
DANG ER Risk of accidentd uetoincor‐
re ct tir epressure
Ever ytire, including thes par e(if pr ovided),
should be checkedw hen cold at leas toncea
mont hand inflated tothep ressur erecom‐
mended bythev ehicle manufacturer (see
Ti re and Loading Info rmatio nplacar dont he
B-pi llaronthed rive r’ss ide or thet irep res‐
sur elabel on thei nside of thef uel filler flap
of your vehicle). If your vehicle has tires of a
dif fere nt size than thes ize indicated on the
Ti re and Loading Info rmatio nplacar dort he
tirep ressur etable, youn eedtod etermine
th ep roper tir epressur efor those tires.
As an added saf etyf eature, your vehicle has
been equipped wit hatirep ressur emonitor‐
ing sy stem (TPMS) that illuminates alow tire
pressur eindicator lam pwhen oneorm oreo f
yo ur tires ar esignif icantl yunderinflated.
Ac cordingly ,ifthe lo wtirep ressur eindicator
lam plights up, yous hould stop and check
yo ur tires as soonasp ossible, and inflate
th em tothep roper pressure. Driving on a
significantly underinflated tir ecauses thet ire
to ove rheat and can lead totiref ailure.
Und erinflation also increases fuel consump‐
tion and reduces tir etread life, and may
af fect thev ehicle's handling and braking abil‐
ity .P lease no tethat theT PMS is no tasubsti‐
tut efor proper tir emaintenance, and it is the
driver's responsibility tomaintain cor rect tire
pressure, evenifu nderinflatio nhasnot
re ached thel evel to trig gerillumination of
th eT PMS lo wtirep ressur eindicator lamp.
Yo ur vehicle has also been equipped wit ha
TPMS malfunction indicator toindicat ewhenthes ystemisn otoperating properly .The
TPMS malfunction indicator is combined with
th el ow tirep ressur eindicator lamp. When
th es ystemd etects amalfunction, thei ndica‐
to rlamp willf lashfora pproxima tely am inute
and then remain continuously illumina ted.
This sequence will continue upon subsequent
ve hicle start-ups as longast he malfunction
ex ists.
When them alfunction indicator is illumina‐
te d, thes ystem ma ynotbe able todetect or
signal lo wtirep ressur easi ntended. TPMS
malfunctions ma yoccurf orav ariety of rea‐
sons, includingt he installation of incompati‐
ble replacementora lternatetires or wheels
on thev ehicle that pr eventtheT PMS from
functioning properly.
Alw aysc hec kthe TPMS malfunction warning
lam pafter replacing one or mor etires or
wheels on your vehicle toensur ethat the
re placemen toralternat etires and wheels
allo wthe TPMS tocontinu etofunction prop‐
er ly.
Wheels and tires 359
and one-half times aswell on theg ove rnment
te st trac kasat ireg rade d1 00.
The relativ eperform anc eoft ires depends upon
th ea ctual conditions of their use, ho wever,and
ma ydepar tsignificantl yfromt he nor mdueto
va riations in drivin ghabits, servic epractice sand
dif fere nces in road characteristic sand climate
conditions.
Tr actio ngrade
&
DANG ER Risk of accidentd uetoinade‐
qu atet raction
The traction grade assigned tothis tir eis
based on stra ight-ahead brakin gtraction
te sts, and does no tinclude either accelera‐
tion, cornering, hydroplaning or peak traction
ch aracteristics.
#Alw aysa dap tyour driving stylea nd
driv eatas peedtosuit thep reva iling
traf fica nd weather conditions.
* NO
TEDama getothed rive trai nfrom
wheelspin
#Av oid wheelspin.
The traction grades –fromh ighes ttolowest –
ar eA A, A, Band C. Those grades represent the
tire's ability tostop on wetpave ment as meas‐
ured under controlledc onditions on specified
go vernment test sur faces mad eofasphalt and
concr ete.
Te mp eratur egrade
&
WARNING Risk of accident from tire
ove rheating and tir efailure
The temp eratur egrade fort his tir eisestab‐
lishedf oratiret hat is properly inflated and
no to verloaded. Excessiv espeed, underinfla‐
tion, or excessiv eloading, either separately
or in combination, can cause excessiv eheat
build-up and possible tir efailure.
#Obser vether ecommende dtirep res‐
sure sand regularly checkt he tir epres‐
sur eofa ll tires including thes pare
wheel.
#Ad jus tthe tir epressur easn ecessar y.
Thetemp eratur egrades ar eA(theh ighest), B
and C. The yrepresent thet ire's resis tance tothe
ge neration of hea tand its ability todissipate
heat when tested under controlled conditions on
as pecified indoor laborator ytestw heel. Sus‐
ta ined high temp eratur ecan cause them aterial
of thet iretod egenerat eand reduce tir elife, and
exc essiv etemperatur ecan lead tosudden tire
fa ilure. Grade Ccorresponds toaleve lofp er‐
fo rm anc ewhicha ll passenger car tires must
mee tunde rthe requ irements of theUSD epart‐
ment of Transpor tation.
DO T,Tire Identification Numbe r(TIN)
US tir eregulations stipulat ethat everytire man‐
ufactu rerorr etre ader must imprint aTIN in or
on thes ide wall of eac htirep roduced.
Wheels and tires 367
Changingawheel
Note sons electing, installing and replacing
tires
Mercedes -AMG vehicles: observethe no tesi n
th eS upplement .Otherwise, youm aynotrecog‐
niz ed angers.
Yo uc an ask fori nformation rega rding permitte d
wheel/tir ecombinations at an authorized
Mercedes-Ben zCenter.
&
WARNING Risk of accident duetoi ncor‐
re ct dimensions of wheelsa nd tires
If wheelsa nd tires of thew rong size are
ins talled, thew heel brakes or wheel suspen‐
sion components ma ybedamaged.
#Alwaysr eplace wheels and tires with
th ose that fulfill thes pecification sof
th eo riginal part.
When replacing wheels, mak esuretof itth e
cor rect:
RDesignation
RModel
Whenr eplacing tires, mak esuretoi nstallth e
cor rect:
RDesignation
RManufactu rer
RModel
&
WARNING Risk of injury thro ugh exceed‐
ing thes pecified tir eload rating or the
permissible speed rating
Exceeding thes pecified tir eload rating or
th ep ermissible speed rating ma ylea dtot ire
damage andtothet ires bur sting.
#Therefore, onl yuse tir etypes and sizes
appr ovedfor your vehicle model.
#Obser vethet irel oad rating and speed
ra ting requ ired fory our vehicle.
* NO
TEDama getovehicle and tires due to
non-app rove dt iret ypes and sizes
Fors afet yr easons, onl yuse wheels, tires
and accessories whichhave been appr oved
fo ry our vehicle byMercedes-Benz.
These tires ha vebeen speciall yadap tedf or
use wit hthe control sy stems, e.g. ABS or
ESP
®,a nd ar emarke dasf ollows:
RMO = Mercedes-BenzO riginal
RMOE = Mercedes-BenzO riginal Extended
(run-flat tires onl yfor cer tain wheels)
RMO1 = Mercedes-Benz Original (onl ycer‐
ta in AMG tires)
Cer tain characteristics, e.g .handling, vehicle
noise emissions or fuel consum ption, may
ot herwise be adversely af fected. In addition,
whe ndriving wi thaload, tir edimension var‐
iations could caus ethe tires tocome into
contact wi th thebody and axle components.
This could result in damag etothe tires or the
ve hicle.
37 4
Wheels and tires
Observethef ollowing when selecting, ins talling
and replacing tires:
ROnl yuse tires and wheels of thes ame type
(summer tires, winter tires, MOEx tended
tires) and thes ame make.
ROnl yins tal lw heels of thes ame size on one
axle (lef tand right).
It is onl ypermissible toins tallad iffe re nt
whee lsizeint heeve nt of aflat tir eino rder
to driv etot he specialis tworks hop.
ROnl yins tall tires of thec orrect size ont othe
wheels.
RVe hicles with atirep ressur emonitoring
sy stem: all mounte dwheels mus tbeequip‐
ped wit hfunctioning sensor sfor thet ire
pressur emonitoring sy stem.
RAt temp eratures belo w45°F(7°C), use win‐
te rt ires or all-seaso ntires mar kedM +Sfor
all wheels.
Wi nter tires bearing thei snowflak esym‐
bol in addition totheM +S marking pr ovide
th eb estp ossible grip in wintr yroad condi‐
tions.
RFo rM +S tires, only use tires wit hthe same
tread.
RObser vethem aximum permissible speed for
th eM +S tires ins talled.
If th is is belo wthe vehicle's maximum speed,
th is mus tbeindicated in an appropriat elabel
in thed rive r's field of vision.
RRu ninn ewtires at moderat espeed sfor the
fi rs t60m iles (100km).
RReplace thet ires af ters ixyearsatt he latest,
re ga rdless of wear.
RWhen replacing with tires that do no tfea‐
tu re run-flat charac teristics:vehicles with
MOExtended tires ar enotequipped wit ha
TIREFIT kit at thef actor y.Equi pthe vehicle
wit haT IREFIT kit af terr eplacing wit htires
th at do no tfeatur erun- flat characteristics,
e.g .winter tires.
Fo rm orei nformation on wheels and tires, con‐
ta ct aq ualified specialis tworks hop.
Be sur etoalso observ ethe following fur ther
re lated subjects:
RNo tesont irep ressur e(→page356)
RTire and Loading Info rmatio nplacard
(→pag e361)
RTire size designation, load-beari ng capacity,
speed rating and load ind ex(→pag e369)
RTire pressur etable (→pag e357)
Note sonr otating wheels
&
WARNING Risk of injury thro ugh dif fer‐
ent wheels izes
Inter changing thef ront and rear wheels if the
wheels or tires ha vediffere nt dimensions
ma yseve rely impair thed riving characteris‐
tics.
The wheel brakes or wheel suspension com‐
ponent smayalso be damaged.
#Rotate front and rear wheels only ifth e
wheels and tires ar eofthe same dimen‐
sions.
37 6
Wheels and tires
Aluminum hubcap
#Toremo ve:positio nsocket2 on hubc ap
1.
% The soc ketc an be found inthet ire-change
to ol kit.
#Po sition wheel spanner 3on soc ket2.
#Using whee lspa nner 3,turnh ub cap 1
counter-clo ckwise and remo veit.
#To install: position hub cap 1and tur nuntil
it is comple tely flush withthe wheel.
#Position soc ket2 on hubc ap1.
#Attach wheel spanner 3tosoc ket2 and
tighten theh ub cap clockwise.
Specified tightening torq ue: 18lb-ft
(25 Nm).
#Ra ise thev ehicle (→pag e379).
Raising thev ehicle when changing awheel
Requirements:RTher eareno persons in thev ehicle.
RThe vehicle has been prepared foraw heel
ch ang e(→pag e378).
RThe hub caps ha vebeen remo ved
(→pag e378).
Impo rtant no tesonu singthej ack:
Ronl yusethev ehicle-specific jac kthat has
been tested and appr ovedbyM ercedes-Benz
to raise thev ehicle.
Rthej ackiso nlyd esigned forr aising and hold‐
ing thev ehicle foras horttime while awheel
is being changed and no tfor maintenance
wo rkunder thev ehicle.
Rthej ackm ustbep laced on afirm, flat and
non-slip sur face. If necessar y,use alarge ,
load-bearing, non-slip underla y.
Rthef ootoft he jac kmustbep ositioned verti‐
call yunder thej acks uppor tpoint.
Rules of conduct when thev ehicle is raised:
RNe verp lace your hands or feet under the
ve hicle.
RDo no tlie under thev ehicle.
RDo no tstar tthe engine and do no trelease
th ee lectric parking brake.
RDo no topen or close an ydoor sort he trunk
lid.
Wheels and tires 37
9