ECU MERCEDES-BENZ SL CLASS 2020 Manual PDF

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

X
Shif tthe trans missionto pos ition 005D.
X Swi tch offthe engi ne.
X Vehi cles without KEYLES S-GO :remo ve
the Smar tKeyfrom theigniti onlock.
X Vehi cles with KEYLES S-GO :ope nthe driv-
er's door.
The vehicleelectro nicsnow have statu s0.
Thi sis the same asthe Smar tKeyhaving
bee nremo ved.
X Vehi cles with KEYLES S-GO :remo vethe
Start/Sto pbu tton from theigniti onlock
(Y page 126 ).
X Ifincl uded inthe vehicleequ ipment, remove
the tire-cha nge tool kitfrom thevehicle.
X Safe guard thevehicleag ainst rolling away.
Se curi ngthe vehic leto preve ntitfrom
rol ling awa y If
yo ur veh icleis equ ipped with awh eel chock,
it can befou ndinthe tire-cha nge tool kit
(Y page 280 ).
The folding wheel chock isan additiona lsa fety
mea sure to pre vent thevehiclefrom rolling
aw ay,for exa mpl ewh en cha nging awh eel .
X Fol dboth plate sup wa rds 0043.
X Fol dou tlo we rpl ate 0044.
X Gu ide the lugs on the lowe rpl ate fullyinto
the openings inba se plate 0087. X
Place chocks orothe rsu ita ble item sund er
the front andrearof the wheel that isdiag o-
nal lyopp ositethe wheel youwi sh to
cha nge.
Rais ingthe vehic le G
WARNI
NG
If yo udo not position the jack corre ctlyat
the appro priate jacki ngpointofthe vehicle,
the jack couldtip ove rwi th the vehicle
rai sed .The reisaris kof inju ry.
Only position the jack atthe appro priate
jacki ngpointofthe vehicle. The base ofthe
jack mustbe pos itioned vertically,di rectl y
und erthe jacki ngpointofthe vehicle.
! Only
position the jack atthe appro priate
jacki ngpointofthe vehicle. Othe rwise, you
cou ldda mag ethe vehicle.
Obs erve thefollowi ng when raising thevehi-
cle :
R To raise the vehicle, only usethe vehicle-
spe cificjack thathasbee nteste dand
ap pro ved byMer cede s-Benz. Ifus ed incor -
rectl y,the jack couldtip ove rwi th the vehi-
cle raised .
R The jack isdes igned only toraise and hold
the vehiclefor asho rttime while awh eel
is bei ng cha nged .It mus tnot beused for
per formi ngmai ntenance workund erthe
veh icle.
R Avoi dcha nging thewheel onuphilland
dow nhillslo pes .
R Befo reraising thevehicle, secu reitfrom
rol ling away by applying the parking brake
and inserting wheel chocks .Do not disen-
ga ge the parking brakewhile the vehicleis
rai sed . Chan
ging awh eel
317Whee lsand 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