
Count
ry Ra
dio type approval number lice
nce. L'ex ploit ationest
auth oriseeaux deux condition s
suivan tes.(1) L'app areilnedoit
pas prod uiredebrouil lage,et
(2) L'aut isatuer del'appar eil
doit acceptertout brouil lage
radioe lectrique subi,memesi le
brouil lageestsusc eptible d'en
com prom ettrelefon ction ne-
men t.WARN ING:Chang esor
modi ficatio nsnot expressly
appro vedbythepart yres pon si-
ble forcom plian cecould void
th euser' sauth orityto oper ate
th eequipm ent.The term"IC: "
befo retheradio certificat ion
num beronlysign ifies Canada
tec hnical 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 nce. L'ex ploit a-
tio nest auth oriseeaux deux
con dition ssuivan tes.(1) L'ap-
pareil nedoit pasprod uirede
brouil lage,et(2) L'aut isatuer de
l'appar eildoit acceptertout
brouil lageradioe lectrique subi,
mem esi le brouil lageestsus-
cep tibled'en comprom ettrele
fon ction nem ent.WARN ING:
Chang esormodi ficatio nsnot
exp ressly appro vedbythepart y
res pon sible forcom plian ce
could voidtheuser' sauth ority
to oper atetheequipm ent.The
ter m"IC: "befo retheradio cer-
tif icat ion num beronlysign ifies
Canada technical spec ificatio ns
were met. Count
ry Ra
dio type approval number 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
th est eerin gand drivingchar acteris ticsand
lead tobrak efailur e.Ther eis arisk ofacc i-
den 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
th emax imum possibleload.
(1) TheTire andLoadin gIn for mat ionplacar d
is on theB- pillar onthedriv er'sside. The
Tire andLoadin gIn for mat ionplacar d
shows themax imum permissiblenum ber
of occ upant sand themax imum permissi-
ble vehicle load. Italso contain sdet ails of
th etir esiz es and correspon ding pressures
for tires moun tedatthefac tory.
(2) Thevehicle iden tificat ion plat eis on the
B- pillar onthedriv er'sside. Thevehicle
iden tificat ion plat einf orm syou ofthe
gro ssveh icle weight rating .It is made up
of theveh icle weight ,all veh icle occu-
pant s,thefuel andthecar go. You canalso
fin dinf orm ationabout themax imum gross
axle 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 er
exc eed themax imum loadorthemax i-
mum grossaxle weight rating forthefro nt
or rear axle. 306
Load
ingthevehicleWh eels andtires

Gross
AxleWeig htRating (GAWR) :the maxi-
mum permiss iblewei ght that canbecarried by
one axle (front orrear axle) .
To ensure thatyourvehicle doesnotexceed
the maximu mpermiss iblevalu es(gross vehi-
cle weight and maximu mgross axleweight rat-
ing), have yourloa ded vehicle (includingdriver,
occupa ntsand theload)wei ghed onasuita ble
vehicle weighbrid ge. All
about wheelsand tires Unifo
rmTire Quality Grading Stand-
ards
Overvie wof Tire Quality Grading
Standards Uniform
TireQual ityGrad ingStandards are
U.S. government specifications. Theirpurpose
is to provid edrivers withuniform reliableinfor-
mation ontire performa ncedata. Tiremanu-
facturers havetograde tiresusing threeper-
formance factors:0043tread weargrade ,0044
traction gradeand0087temperatu regrade .
These regulations donot applyto Cana da.
Neverthele ss,alltires soldinNorth America
are provid edwith thecorrespondi ngqua lity
gradi ngmarkings onthe sidew allofthe tire.
Qual itygrade scan befound, whereapplicable,
on the tire sidew allbetwee ntread shoulder
and maximu msection width.
Example:
R Treadwear grade:200
R Traction grade:AA
R Temperatur egrade: A
All passe ngercartires must conform tothe
statutory safetyrequirements inadd ition to
these grades. i
The
actual valuesfor tires arevehicle -spe-
cific andmay devia tefrom thevalu esinthe
ill ustration.
Treadwear The
treadw eargrade isacompara tiverating
base don the wea rrate ofthe tire when tested
under controlled conditions onaspecifi edU.S.
government course.Forexampl e,atire grade d
150 wouldwea rone andone-half timesaswel l
on the government testtrack asatire grade d
100.
The relative performa nceoftires depends
upon theactual conditions oftheir use,how-
ever, andmay depa rtsignifi cantly fromthe
norm duetovaria tions indriving habits,ser-
vice practices anddifferences inroad charac-
teristics andclimate.
Traction G
WARNING
The traction gradeassigned tothis tireis
base don straight-ahe adbraking traction
tests, anddoes notinclud eaccelera tion,
cornering, hydroplaning, orpeak traction
characteris tics.
! Avoid
wheelspin.This canleadto dama ge
to the drive train.
The traction grades– from highe stto lowe st–
are AA, A,Band C.Those gradesreprese ntthe
tire's ability tostop onwet paveme ntas meas-
ured under controlled conditions onspecifi ed
government testsurface sof aspha ltand con-
crete. Atire marked Cmay have poortraction
performa nce.
The safe speed onawet, snow covered oricy
road isalw ayslowe rthan ondry road surfa-
ces.
You shoul dpay specia lattention toroad con-
ditions whentemperatu resare arou ndfreezing
point.
Mercedes -Benzrecommends aminimum tread
depth of00CF in(4 mm) onallfour winter tires.
Observe thelega llyrequi redminimum tire
tread depth (Ypage 297). Winter tirescan
reduce thebraking distance onsnow-covered
surface sin compari sonwith summer tires.The
braking distance isstill much further thanon Al
labout wheelsand tires
309Wheelsand tires Z

surfaces
thatarenot icyorcovered withsnow.
Take appropria tecare when driving.
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 incombination, 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.
Sustained hightemperature cancause the
material ofthe tire todegenerate andreduce
tire life, and excessive temperature canlead to
sudden tirefailu re.The grade Ccorresponds
to alevel ofperformance whichallpassenger
car tires must meet under theFederal Motor
Vehicle SafetyStandard No.109. Grades B
and Arepresent higherlevelsofperformance
on the labora torytestwheel thantheminimum
required bylaw. Tire
labeli ng
Overview 0043
Uniform TireQuali tyGradi ngStandard
(Y page 314)
0044 DOT, TireIdentification Number
(Y page 313)
0087 Maximum tireload (Ypage 313)
0085 Maximum tirepressure (Ypage 302)
0083 Manufacturer
0084 Tire material (Ypage 314)
006B Tire size designation, load-bearingcapacity
and speed rating(Ypage 310)
006C Load index (Ypage 312)
006D Tire name
The markings described aboveareonthe tire
in addition tothe tire name (sales designation)
and themanufacturer's name.
i Tire
data isvehicle-specific andmay devi-
ate from thedata inthe example.
Tire size designation, load-bearing
capacity andspeed rating G
WARNING
Exc eeding thestated tireload-bea ringcapa-
city and theapproved maximum speed
could leadtotire damage orthe tire burst-
ing. There isarisk ofaccident.
Therefore, onlyusetiretypes andsizes
approved foryour vehicle model.Observe 310
All
about wheelsand tiresWheels andtires

Summ
er
tires Index Speed
rating ZR...(..
Y) over
186mph (300km/h) ZR over
149mph (240km/h) R
Optionally, tireswithamaximum speedof
over 149mph (240 km/h) mayhave "ZR"in
the size description, dependingonthe man-
ufacturer (e.g.245/ 40ZR18 ).
The service specification ismade upofload-
bearing index0083and speed rating0084.
R Ifthe size description ofyour tireincludes
"ZR" andthere arenoservice specifications,
ask thetire manufacturer inorder tofind
out themaximum speed.
If aservice specification isavaila ble,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) i
Not
alltires withtheM+S marking provide
the driving characteristics ofwinter tires.In
addi tion tothe M+S marking, wintertires
also have the004D snowfla kesymbo lon the
tire wall.Tires withthismarking fulfillthe
requi rements ofthe Rub ber Manufa cturers
Association (RMA)andtheRub ber Associa-
tion ofCana da(RAC) regard ingthe tire trac-
tion onsnow. Theyhave been especia lly
devel oped fordriving onsnow.
An electronic speedlimiterprevents yourvehi-
cle from exceeding thefollow ingspeed s:
R 130 mph (210 km/h):
- All vehicle s(except Mercedes-AMG vehi-
cles)
R 155 mph (250 km/h ):
- Mercedes-AMG SL63
- Mercedes-AMG SL65
R 186 mph (300 km/h):
- Mercedes-AMG SL63 (Performa ncePack-
age)
- Mercedes-AMG SL65 increased maxi-
mum speed
The speed ratingoftires mounted atthe fac-
tory may behighe rthan themaximum speed
that theelectronic 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 321).
Further information aboutreadi ngtire data
can beobtained fromanyqualifiedspecia list
workshop.
Load index In
addi tion tothe load -bearing index,load
index 0043may alsobeimprinted onthe side-
1 Or M+S 004D forwinter tires. 312
Al
labout wheelsand tiresWheel sand tires

wall
ofthetir e. You willfindth is aft erthelet-
ter that iden tifies thespeed rating
(Y page 310).
R Ifno spec ification isgiven :no text(as inthe
exam pleabove) ,repr esen tsast andar dload
(SL )tir e
R XL orExtra Load: represen tsarein forced
tir e
R Light Load: represen tsalight loadtire
R C, D, E:repr esen tsaload rangethat
depen dson themax imum loadthat thetir e
can carryat acer tain pressure
i Tire
data isvehic le-speci ficand may devi-
ate fromthedata intheexam ple.
Max imumload rating Maxim
umtireload 0043isthemax imum permis-
sible weight forwhich thetir eis approv ed.
Do not over load thetir es by exc eedin gth e
spec ified loadlimit.The maximum permissible
load canbefoun don thevehic le'sTire and
Loadin gIn for mat ionplacar don theB- pillar on
th edriv er's side (Ypage 306).
i The
actual values fortires are vehic le-spe-
cif icand may deviat efro mthevalues inthe
illust ration.
DOT, TireIdent ification Number (TIN) US
tireregulat ionsstipulate that ever ytir e
man ufact urerorret reader mustimprintaTIN
in or on thesidewall ofeach tireproduc ed. The
TINisaunique identificat ion num ber. The
TIN enabl esthetir eman ufact urersor ret read-
ers toinform purchaser sof rec alls and other
safet y-relevan tmat ters.Itmak esitposs ible
for thepurc haser toeasily identifyth eaffe cted
tir es.
The TINismade upofman ufact ureridentifica-
tio ncod e0044, tiresiz e0087, tiretype code0085
and man ufact uringdate 0083.
DOT (Depa rtment ofTransp ortation): tire
symbo l0043 mark sth at thetir ecom plies with
th erequir ementsof theU.S .Dep artmen tof
Tran spor tation.
Man ufactu rer ident ification code: manufac-
tur eriden tificat ion code0044 prov ides details on
th etir eman ufact urer.New tires have acod e
with twosymbo ls.Retr eaded tires have acod e
with foursymbo ls.
For further inform ation about retreaded tires,
see (Ypage 321).
Tir esize: identifier 0087 desc ribes thetir esiz e.
Tir ety pe code: tiretype code0085 can beused
by theman ufact urerasacod eto desc ribe
spec ificchar acterist icsofthetir e.
Dat eof ma nuf acture: date ofman ufact ure
0083 prov ides inform ation about theage ofa
tir e. The firstand second posit ionsrepresen t
th eweek ofman ufact ure,start ing with "01"
for thefirs tcalen darweek .Posit ionsthree and
four represen tth eyear ofman ufact ure.For
exam ple,atir eth at ismark ed"321 4"was
man ufact ured inweek 32in20 14.
i Tire
data isvehic le-speci ficand may devi-
ate fromthedata intheexam ple. All
abou twheels andtires
313Wheels andtires Z

Tire
charac teristics Thi
sinfo rma tionde scri besthe typeof tire cord
and thenum berof laye rs inside wa ll0043 and
und ertire trea d0044.
i Ti
re data isveh icle-s pecificand mayde vi-
ate fromthe data inthe exampl e.
De finition ofterms fortire sand load-
in g Tire
plycompos ition and materi aluse d
Desc ribes the num berof pliesor the num ber
of laye rs of rubb er-c oated fabri cin the tire
trea dand side wa ll. The searema de ofstee l,
nyl on, polyeste rand othe rma teri als.
Bar
Me tric unitfor tire pressu re.14.50 38pound s
pe rsq ua re inch (psi)and 100 kilop ascal s(kP a)
ar ethe equiva lent of1ba r.
DO T(D epa rtmen tof Trans portation)
DOT-m arked tiresfu lfillthe requirem ents of
the USDep artment ofTra nsp orta tion.
Normal occu pant weight
The num berof occu pants forwhich the vehicle
is de signe dmu ltiplied by 68 kilog rams
(15 0lbs).
Un iform Tire Quality Gradi ngStan dards
A uni formsta nda rdtogra dethe quality oftire s
wi th reg ards totrea dqu ality ,tire tractio nand
temp eraturecha racteri stics. The quality gra d-
ing asses sme ntisma de bythe manuf actu rer
fol lowi ng speci ficati ons fromthe U.S. gover n-
ment. Therating sar emol dedinto theside wa ll
of the tire. Rec
omme ndedtire pres sure s
The reco mme ndedtire pressu reappliesto the
tire smou nted atthe factory .
The Tire and Loading Info rma tionplaca rdcon-
tai ns the reco mme ndedtire pressu res forcold
tire son afu lly lo ad ed veh icleand forthe maxi-
mu mpermi ssible veh iclesp ee d.
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.
In cre ase dve hic lewe ight due toopti onal
equ ipme nt
The comb inedwe ight ofallsta nda rdand
op tio nal equipme ntavaila bl e for the vehicle,
reg ardless ofwh eth eritis actu ally ins talled on
the vehicleor not.
Rim
Thi sis the partof the wheelon which the tire
is mou nted .
GA WR (Gros sAx leWe ight Rati ng)
The GAW Ris the maxim um grossaxl ewe ight
ra ting .The actu alload on anaxlemu stneve r
exce edthe grossaxl ewe ight rating .The gross
axl ewe ight rating canbefou ndonthe vehicle
id enti ficati on plate onthe B-pi llar on the driv-
er' sside .
Spe edratin g
The spee dra ting ispa rtof the tire identi fica-
tio n.Itsp eci fiesthe spee dra nge forwhich the
tire isap pro ved .
GVW (Gros sVeh icle We ight)
The grossveh iclewe ight incl udes the weight
of the vehicleincl uding fuel,tool s,the spare
wh eel,acc essories installed, occu pants, lug-
ga ge and thedrawbarnose weight, ifap plica -
bl e. The grossveh iclewe ight mu stnot exce ed
the grossveh iclewe ight rating GVWR asspeci -
fie don the vehicleidenti ficati on plate onthe
B-pi llar on the driver 'sside .
GVWR (Gros sVeh icle We ight Rati ng)
The GVWR isthe maxim um permi ssible gro ss
we ight ofafu lly lo ad ed veh icle(th ewe ight of
the vehicleincl uding allacc essories, occu -
pa nts, fuel,lu gga geand thedrawbarnose -
we ight, ifap plica ble) .The grossveh iclewe ight
ra ting issp eci fiedon the vehicleidenti ficati on
pl ate onthe B-pi llar on the driver 'sside . 31
4 Al
labo utwhee lsan dtire sWhe elsand tires

Treadw
earindic ators
Na rro wba rs (tre adwearbars) thatar edistri b-
ute dove rthe tire trea d.Ifthe tire trea dis level
wi th the bars, the wearlimit of00CD in(1.6 mm)
ha sbe en rea che d.
Oc cupant distrib utio n
The distri butio nof occu pants inaveh icleat
thei rde signa ted seating positio ns.
Total load limit
Nom inallo ad and lugga geload plus 68 kg
(150 lbs) mu ltiplied by the num berof sea tsin
the vehicle. Ch
ang ingawh eel Fl
at tire
The "Breakdo wnassista nce" section
(Y page 281 )conta insinfo rma tionand note s
on how todealwith afla ttire .Info rma tionon
dri ving with MOExte ndedtire sin the eventofa
fla ttire can befou ndund er"M OExtend edtire s
(ti res with run-fla tcha racteri stics"
(Y page 281) . Rotati
ngthe wheels G
WA
RNING
Ro tati ngthe fron tand rearwh eelsifthe
wh eelsor tire sha ve diffe rent dimens ions
ma ysev erelyimp airthe driving characteri s-
tics .The servicebra keorwh eelsu spe nsion
comp onents mayal so be dama ged. The reis
a ris kof an acci dent.
Ro tate front andrearwh eelsonl yif the
wh eelsand tiresar eof the same dimen-
si ons.
! On
veh icles equipp ed with atire pressu re
moni tor,electro niccomp onents arelocate d
in the wheel.
Ti re-m ounting toolssho uld not beused nea r
the valve .Thi scou ldda ma gethe electro nic
comp onents.
Onl yha ve tire scha nge dat aqu alifi ed spe -
cia list wo rksh op. Alw
ayspa yatte ntionto the instructio nsand
sa fety note swh en cha nging awh eel
(Y page 316 ).
The wearpatterns onthe fron tand reartire s
di ffe r,de pendi ng on the opera ting cond itions.
Ro tate thewheelsbe fore acle arwe arpattern
ha sform edon the tires.Front tirestyp ically
we armor eon the shoulde rand reartire sin
the cente r.
On veh icles tha tha ve the same size front and
rea rwh eels,yo ucan rotatethe wheelsacco rd-
ing tothe intervalsin the tire manuf actu rer's
wa rranty book inyour veh icledo cum ents. Ifno
wa rranty book isavaila bl e, the tiressho uld be
rota tedevery3,0 00 to6,0 00 miles(5,000 to
10, 000 km).Dep endingontire wear,thi sma y
be req uired earlier. Do not change thedirec-
tio nof wh eelrota tion.
Cl ea nthe conta ctsurfa ces ofthe wheeland
the brakedisc thor oughl yeve rytime awh eel
is rota ted.Ch eck thetire pressu reand reacti-
va te the tire pressu remoni torifnece ssary. Di
rec tionof rotati on
Ti res with aspe cified directi onofrota tionha ve
ad ditio nal benefi ts,e.g.if ther eis aris kof
hy dro plani ng. Theseadvantag escan onlybe
ga ine difthe tiresar eins talled corr espond ing
to the directi onofrota tion.
An arrow onthe side wa llof the tire indicates
its corr ectdirecti onofrota tion. Sto
ringwh eels
Store wheelstha tar enot being used inacoo l,
dry and preferablyda rk place .Pro tect thetires
from oil,gre ase, gasol ine and diese l. Mou
nting awh eel
Pre parin gthe vehic le X
Stop thevehicleon solid,non-sl ippe ry and
le vel ground .
X Unl oadthe vehicle. The jack canonlybe
us ed when the vehicleis unl aden.
X App lythe electri cpa rking brakema nua lly.
X Bri ng the fron twh eelsinto thestra ight-
ah eadpo sitio n. 31
6 Ch
ang ingawh eelWhe elsand tires

G
WARNING
If you tighten thewhee lbolts orwhee lnuts
when thevehicl eis rais ed, the jack couldtip
over. There isarisk ofinjury .
Only tighten thewhee lbolts orwhee lnuts
when thevehicl eis on the grou nd.
Alwa yspay attention tothe instructions and
safety notesinthe "Changi ngawhee l"section
(Y pag e316).
Only usewhee lbolts thathave been designed
for the whee land thevehicl e.For safety rea-
sons, Mercede s-Benzrecommends thatyou
only usewhee lbolts whichhave been
app roved forMercede s-Benzvehiclesand the
respe ctivewheel.
! Merce
des-AMGvehi cles:duri ngremova l
and repos itioning ofthe whee l,the whee l
rim can strike thecerami c-brake discand
dama geit.There fore,youshou ldproceed
carefu llyand getasecond personassi stto
you .Alternativel y,you can useasecond
ali gnment bolt.
! To
prevent damagetothe paintwork, hold
the whee lsecure lyaga inst thewhee lhub
whi lescrewi nginthe first whee lbolt. X
Cle anthe whee land whee lhub contact sur-
faces.
X Slide thewhee lto be mounted ontothe
ali gnment boltandpushit on.
X Tigh tenthewhee lbolts untiltheyarefinger-
tight.
X Unscrew thealignment bolt.
X Tigh tenthelastwhee lbolt until itis finger-
tight. Lo
we ring thevehi cle G
WARNING
The whee lscoul dcome looseif the whee l
bolts orwhee lnuts arenot tightened tothe
prescri bedtightening torque.There isarisk
of an accide nt.
Ensure thatthewhee lbolts orwhee lnuts
are tightened tothe prescri bedtightening
torque .
If you arenot sure ,do not move thevehicl e.
Contact aqua lified speci alist worksho pand
have thetightening torquechecked immedi-
ately .
X Turn thecrank ofthe jack counter-clockwi se
until thevehicl eis once againstanding
firmly onthe grou nd.
X Pla cethe jack toone side. X
Tigh tenthewhee lbolts evenly inacross-
wis epattern inthe sequ ence indica ted(0043
to 0083). Thespeci fiedtightening torqueis
96 lb-ft (130Nm).
X Turn thejack back toits initia lposi tion.
X Stow thejack andtherest ofthe vehicl e
tools inthe trunk again.
X Merce
des-AMGvehic lesand vehic les
with AMG equipment: insertthecover into
the outer sill.
X Che ckthe tire pressu reofthe newly moun-
ted whee land adjustitifnecessa ry.
Observe therecommende dtire pressu re
(Y pag e299) .
Vehic leswith atire pressure control sys-
tem: allinstall edwhee lsmust beequ ipped
with functioning sensors.
When youaredrivi ngwith theemerge ncy
spar ewhee lmounted, thetire pressu remoni- 320
Chang
ingawhe elWhee lsand tires