weight MERCEDES-BENZ SL ROADSTER 2019 User Guide

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 294). Winter tirescan
reduce thebraking distance onsnow-covered
surface sin compari sonwith summer tires.The
braking distance isstill much further thanon 306
Al
labout wheelsand tiresWheel sand tires

wall
ofthetir e. You willfindth is aft erthelet-
ter that iden tifies thespeed rating
(Y page 307).
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 303).
i The
actual values fortires are vehic le-spe-
cif icand may deviat efro mthevalues inthe
illust ration.
DOT, TireIdent ificationNumber (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 318).
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. 310
All
abou twheels andtiresWh eels andtires

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 . Al
labo utwhee lsan dtire s
311Whe elsand tires Z

Maximum
loadedvehi cleweight
The maximu mwei ght isthe sum of:
R the curb weight ofthe vehicl e
R the weight ofthe accesso ries
R the loadlimi t
R the weight ofthe factory installedoptiona l
equ ipme nt
Kil opasc al(kPa)
Metric unitfortire pressu re.6.9 kPa corre-
sponds to1psi. Another unitfortire pressu re
is bar. 100 kilop ascals(kPa) arethe equivalent
of 1bar.
Load index
In add ition tothe load-bea ringindex, theload
index mayalsobe impri nted onthe side wallof
the tire. This speci fiestheload-bea ringcapa -
city more precis ely.
Curb weight
The weight ofavehicl ewith standard equip-
ment includ ingthe maximu mcapa cityoffuel ,
oil and coola nt.Itals oinclud esthe air-condi -
tioning system andoptiona lequ ipme ntifthese
are install edinthe vehicl e,but does not
includ epass engers orlug gage .
Maximum loadrating
The maximu mloa drating isthe maximu mper-
missi bleweight inkilog rams orlbs forwhi cha
tire isapp roved.
Maximum permissibletire pressure
Maximu mpermi ssibletire pressu refor one
tire.
Maximum loadonone tire
Maximu mloa don one tire. This iscalcu lated
by divi ding themaximu maxle loadof one axle
by two.
PSI (poun dsper square inch)
A standar dunit ofmeasu refor tire pressu re.
Aspe ctratio
Rel ationshi pbetwe entire heig htand tirewidth
in percent.
Tire pressure
This ispressu reinsid ethe tire applying anout-
ward force toeach square inch ofthe tire's
surfa ce.The tirepressu reisspeci fiedin pou
nds persquare inch (psi),in kilop ascal
(kPa) orinbar. Thetirepressu reshou ldonly
be corrected whenthetires arecold.
Col dtire pressure
The tires arecold:
R ifthe vehicl ehas been parked withthetires
out ofdire ctsunli ghtforatlea stthree hours
and
R ifthe vehicl ehas notbeen drivenfurther
than 1mile (1.6km)
Tread The part ofthe tire that comes intocontact
with theroad .
Bead
The tirebeadensure sthat thetire sits
secure lyon the whee l.There aresevera lsteel
wire sin the beadto prevent thetire from com-
ing loos efrom thewhee lrim.
Sidew all
The part ofthe tire betwe enthe tread andthe
bea d.
Weig htofoption alextras
The combined weight ofthose optiona lextras
that weighmore thanthereplaced standard
parts andmore than2.3kg(5lbs) .These
optiona lextras, suchashigh -performa nce
brakes ,level control, aroof rack orahigh -per-
formance battery,are not includ edinthe curb
wei ght and theweight ofthe accesso ries.
TIN (Tire Identification Number)
This isauniq ueidentifier whichcan beused
by atire manufa cturertoide ntify tires, for
exampl efor aprodu ctrecal l,and thus identify
the purcha sers.TheTINismade upofthe
manufa cturer's identity code, tiresize, tire
type code andthemanufa cturing date.
Load bearin gindex
The loadbea ring index (also loa dindex) isa
code thatcontains themaximu mloa dbea ring
capa cityofatire.
Traction Traction isthe resul tof friction betweenthe
tires andtheroad surface. 312
Al
labout wheelsand tiresWhee lsand tires

Clim
atecont rolsyst emrefrigera nt
Imp ortant safety notes The
climatecontrol syst emofyour vehicle is
fille dwit href rige rantR‑13 4a.
The instruct ion label regardin gth eref rige rant
type used canbefoun don theradiat orcross
mem ber.
! On
lytheref rige rantR‑1 34aand thePA G
oil appro vedbyMer cedes-Ben zmay be
used. Theappro vedPAGoil may notbe
mix edwithany other PAGoil that isno t
appro vedforR-1 34aref rige rant.Ot her wise,
th eclim atecontrol syst emmay bedam-
aged.
Ser vicework ,suc has refillin gwit href rige rant
or repl acin gcom ponentpart s,may onlybe
car ried outbyaqualif iedspec ialist workshop.
All applic ableregulati ons,as well asSAE
st and ard J639,must beadher edto.
Always havework ontheclim atecontrol sys-
te m car ried outataqualif iedspec ialist work-
sho p.
Ref rigera ntinst ruction label Ex
ample :ref rige rantins truct ion label
0043 Sym bol
0044 Refr igerant filling capac ity
0087 App licab lestand ards
0085 PAGoil part number
0083 Type ofref rige rant
Sym bols 0043advis eyou about :
R Poss ibledangers
R Hav ingservicework carried outataquali-
fied spec ialist workshop Filling
capacit ies Mod
el Ref
rigera nt All
mod els 19
.4±0. 4oz
(55 0±10 g) Mod
el PAG
oil All
mod els 4.
2oz
(12 0g) Veh
icle data Gener
alnot es
Pleas eno te that for thespec ifiedveh icle data:
R theheig htsspec ifiedmay varyas ares ult of
- tires
- load
- con dition ofthesuspe nsion
- opt ionalequipm ent
R opt ionalequipm entreduc esthemax imum
payload Dimen
sionsandweight s Mod
el 00430043
Ope ning heigh t Mer
cedes ‑AMG
vehi cles 75
.6in-76 .1in
(19 20mm -
19 34 mm) All
oth ermod els 75
.7in(19 23mm) 326
Veh
icle dataTech nical data