2020 MERCEDES-BENZ SL CLASS tire pressure

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

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. Al
labout wheelsand tires
315Wheelsand tires Z

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