2019 MERCEDES-BENZ SL ROADSTER Owner's Manual

Make
surethat:
R The jumper cablesarenot damaged.
R Bare parts ofthe terminal clampdonot come intocontactwith other metal partswhile the
jumper cablesareconn ected tothe battery.
R The jumper cablescannot comeintocontactwith parts which canmove whentheengine is
running, suchasthe V-belt pulleyor the fan.
X Secure thevehicle byapply ingthe electric parking brake.
X Shift thetransmission toposition 005D.
X Make surethattheignition isswitched off.Allindicator lampsinthe instrumen tcluster must
be off. When usingtheSmartK ey,turn theSmartK eytoposition 0092inthe ignition lockand
remove it(Y page 126).
X Switch offallelectrical consumers, e.g.rear window defroster, lighting,etc.
X Open thehood. Position
number0084identifies thecharged batteryofthe other vehicle oran equival entjump-
startin gdevice.
X Press cover0043ofpositive terminal 0044down (inthe direction ofthe arrow) andturn itclock-
wise. Toexpose positive terminal 0044,press cover 0043down further.
X Connect positiveterminal 0044onyour vehicle topositive terminal 0087ofdonor battery 0084using
the jumper cable,alwaysbegin withpositive terminal 0044onyour ownvehicle first.
X Start theengine ofthe donor vehicle andrunitat idling speed.
X Connect negative terminal0085ofdonor battery 0084toground point0083ofyour vehicle usingthe
jumper cable,beginning withdonor battery 0084first.
X Start theengine.
X Before disconnec tingthejumper cables,letthe engine runforseveral minutes.
X First, remove thejumper cablesfromground point0083and negative terminal0085,then from
positive terminal 0044and positive terminal 0087.Begin eachtimeatthe cont acts onyour own
vehicle first.
X Aft erthe jumper cableisremoved, returncover0043ofpositive terminal 0044tothe original posi-
tion. Positive terminal 0044iscovered upand thus insulated again.
X Have thebattery checkedataqual ified specialist workshop.
Jump-starting isnot considered tobe anormal operating condition. Jump
-starting
287Breakdown assistance Z

i
Jumper
cablesand further inform ationregar dingjum p-startingcan beobt aine dat any quali-
fied spec ialist workshop. Towing
andtow- star tin g Imp
ortant safety notes G
WAR
NING
When towing ortow-s tartingano ther veh icle
and itsweight isgreat erthan theperm issi-
ble grossweight ofyour vehicle,th e:
R theto wing eyecould detach itself
R theveh icle/trailer combinatio ncould roll-
over .
Ther eis arisk ofan acc iden t.
When towing ortow-s tartingano ther veh i-
cle, itsweight shouldno tbe great erthan
th eperm issiblegro ssweight ofyour vehicle.
Det ails ontheperm issiblegro ssveh icle weight
of your vehicle can befoun don theveh icle
iden tificat ion plat e(Y page 320).
! When
ActiveBr ake Assist ,Ac tiveDis tan ce
As sist DISTRO NICortheHOL Dfun ction is
act ivat ed, theveh icle brak esauto matically
in cer tain situatio ns.
To avoid damage totheveh icle,deac tivate
th ese systems inthefollo wing orsimi larsit-
uatio ns:
R when towing theveh icle
R in thecar wash
! On
lysec ure theto w rope ortow bar atthe
to wing eyes. Other wise, theveh icle could be
damage d.
! Do
notuse theto wing eyeforrecover y,
th is could damage theveh icle.If in doubt ,
rec over theveh icle with acr ane.
! When
towing ,pull away slowly and
smo othly. Ifth etract ive power istoohigh ,
th eveh iclescould bedamage d.
! Do
notto w with sling-type equipm ent.This
could damage theveh icle.
! When
towing away vehicleswith KEYLE SS-
GO, usethekey instead oftheSt art /S top
butt on.The auto matictrans miss ionmay
ot her wise shiftto posit ion005Dwhen you open
thedriv er'sor fron t-passe nger door ,
whic hcoul ddamage thetrans miss ion.
! Mak
esure that theelec tric park ingbrak e
is rele ased. Ifth eelec tric park ingbrak eis
fault y,visi ta qualifie dspec ialist workshop.
! You
may tow theveh icle foramax imum
dist anceof 30 miles (50kilomet ers). Ato w-
ing speed of30 mph (50km/h) must notbe
exc eeded .
For towing distancesover 30miles
(50 kilomet ers), theent ireveh icle must be
raise dand trans port ed.
! When
youaretow-s tartingor towing
ano ther veh icle,its weight mustnotexc eed
th emax imum permissiblegro ssweight of
your vehicle.
It is bet terto have theveh icle trans port ed
th an tohave itto wed away.
The auto matictrans miss ionmust beinposi-
tio n005C when theveh icle isbein gto wed away.
The batterymust becon nectedand char ged.
Ot her wise, you:
R can nottur nth eSm artKey toposit ion0048in
th eign itio nloc k
R can notshif tth eauto matictrans miss ionto
posit ion005C
Deac tivate theauto maticloc kin gfeat ure
befo retheveh icle istowed (Ypage 201). You
could other wise belocked outwhen pushin g
or towing theveh icle. Inst
allin g/rem ovingthetowing eye
Inst allin gth etowing eye G
WAR
NING
The exhaust tailpipe maybeveryhot .Ther e
is arisk ofburn swhen removin gth erear
cov er.
Do notto uch theexh aust pipe. Takepart icu-
lar carewhen removin gth erear cover. 288
Towing
andtow- star tin gBreak down assistance

The
bracket sfor the screw-in towingeyeare
located inthe bumpers. Theyareatthe front
and atthe rear, behind thecovers.
X Remove thetowing eyefrom thevehicle tool
kit (Ypage 277).
X Front bumper:insert afinger intothe
recess onthe botto medge ofcover 0043.
X Pull cover 0043out ofthe bumper towards you
in the direction ofthe arrow.
Cover 0043isattached tothe opening witha
strap.
X Rear bump er:press themark oncover 0043
inwards inthe direction ofthe arrow.
X Remove cover0043from theopening.
X Scr ew inthe towing eyeclock wiseasfar as
it will goand tighten it.
Removing thetowing eye X
Unsc rewand remove thetowing eye.
X Front bumper:position cover0043onthe
opening inthe bumper.
X To close, pressthelower section of
cover 0043.
X Rear bump er:position cover0043with the
tab onthe opening inthe bumper.
X To close, pressthelower section of
cover 0043until itengages.
X Place thetowing eyeinthe vehicle toolkit. Towing
avehicle withboth axles on
the ground G
WARNIN
G
You cannolonger steerthevehicle ifthe
steerin gwheel lockhasbeen engaged.
There isarisk ofan accident .
Always switchoffthe ignition whentowing
the vehicle withatow cable oratow bar.
The automatic transmission shiftstoposition
005D automatically whenyouopen thedriver's
or front -passenger doororwhen youremove
the Smart Keyfrom theignition lock.
In order toensure thattheautomatic trans-
mission staysinposition 005Cwhen towing
away thevehicle, youmust observe thefollow-
ing points:
X Switch onthe hazard warning lamps
(Y page 111).
X Make surethatthevehicle isstation aryand
that theSmart Keyisin position 0092inthe
ignition lock.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock.
On vehicles withKEYLE SS-GO, usethe
Smart Keyinstead ofthe Start /Stopbutton
(Y page 126).
X Depress andhold thebrake pedal.
X Shift thetrans mission toposition 005C.
X Release thebrake pedal.
X Release theelectric parking brake.
X Leave theSmart Keyinposition 0048inthe
ignition lock.
In order tosignal achange ofdirection when
towing thevehicle withthehazard warning
lamps switched on,use thecombinat ion
switch asusual. Inthis case, onlytheindicator
lamps forthe direction oftravel flash.When
you reset thecombinat ionswitch, thehazard
warning flashersstartflashing again.
It is important thatyouobserve thesafety
instr uctions whentowing awayyourvehicle
(Y page 288). Permit
tedtowing methods
Mercedes- Benzrecomm endstransportin gyour
vehicle inthe case ofabreakdown, ratherthan
towing itaway . Towing
andtow-sta rting
289Breakdown assistance Z

When
towing away,useatowing ropeora
towing barwith both axles onthe ground. Do
not use anytow barsystems. Towing
thevehicle withtherear axle
raised
! The
ignition mustbeswitched offifyou
are towing thevehicle withtherear axle
raised. Interven tionbyESP®
could other-
wise damage thebrake system.
! Vehicles
withautomatic transmission must
not betowed withtherear axle raised. The
vehicle/t railercombin ationmayotherwise
swerve oreven rollover. Tr
anspor tingthevehicle
Vehicles withautomat ictransmission !
When
thevehicle isloaded fortran sport,
the fron tand rear axles mustbestation ary
and onthe same transportat ionvehicle.
Position ingover theconn ection pointofthe
tran sport vehicle isnot permitt ed.The drive
train mayotherwise bedamaged.
All vehicles !
You
may onlysecure thevehicle bythe
wheels, notbyparts ofthe vehicle suchas
axle orsteerin gcompon ents.Other wise, the
vehicle couldbedamaged.
The towing eyecan beused topull thevehicle
ont oatrailer ortran sporter fortran sportin g
purposes. X
Turn theSmart Keytoposition 0048inthe igni-
tion lock.
X Shift thetran smission toposition 005C.
As soon asthe vehicle hasbeen loaded:
X Preven tthe vehicle fromrolling awayby
applying theelectr icparking brake.
X Shift thetran smission toposition 005D.
X Turn theSmart Keytoposition 0092inthe igni-
tion lock andremove it.
X Secure thevehicle. Tow-sta
rting (emergency engine
star ting)
! Vehicles
withautomatic transmission must
not betow-s tarted. You could otherwise
damage theautomatic transmission.
You canfind inform ationon"Jump-start ing"at
(Y page 285). Fuses
Impor
tantsafety notes G
WARNIN
G
If you manipulate orbridge afaulty fuseorif
you replace itwith afuse withahigher
amperage, theelectr iccables couldbeover-
loaded. Thiscould result inafire. There isa
risk ofan accident andinjury.
Always replace faultyfuseswiththespeci-
fied new fuses having thecorr ectamperage.
Blown fusesmustbereplaced withfuses of
the same rating,which youcan recogn izeby
the color andvalue. Thefuse rating sare listed
in the fuse allocation chart.
The fuse allocation chartislocated inthe vehi-
cle tool kitinthe stowage compartmentunder
the trun kfloor (Ypage 277).
If anewly insertedfuse alsoblows, havethe
cause tracedand rectified ataqualified spe-
cialist workshop, e.g.anauthorized Mercedes-
Benz Center .
! Only
usefuses thathave been approved
for Mercedes- Benzvehicles andwhich have
the corr ectfuse rating forthe system con- 290
FusesBr
eakdown assistance

cerned
.Other wise, comp onents orsystems
cou ldbe damag ed.
! Ma
kesure that nomoi stur ecan enter the
fus ebox whenthe cover isope n.
! Whe
nclos ingthe cover ,make sure that it
is lying corre ctlyonthe fusebox. Moistur e
see ping inor dirt cou ldothe rwiseimp airthe
ope rationofthe fuses.
The fusesinyour vehi cleserv eto clos edow n
fau ltycircu its.Ifafus eblow s,allthe comp o-
nents onthe circu itand theirfuncti onsstop
ope rating. Befo
rechan ging afuse
X Swi tch offthe engi ne.
X Swi tch offallel ectri calconsu mers.
X Ma kesure that theignition isswi tched off
(Y page 126 ).
or X Whe nus ing the SmartK ey,turn theSmart-
Key topos ition 0092 inthe ignition lock and
remo veit(Y page 126 ).
X Secu rethe vehi cleagainst rolling away
(Y page 146 ).
All indi cator lamps inthe instru ment cluster
mus tbe off.
The fusesare loca tedinvari ousfus eboxe s:
R Fus ebox inthe engi necomp artme nton the
rig ht-ha ndsideof the vehi cle,whe nvie we d
in the directi onoftrave l
R Dash boardfus ebox
R Fus ebox inthe rearcomp artme nton the
rig ht-ha ndsideof the vehi cle,whe nvie we d
in the directi onoftrave l Das
hboard fuse box
i Obs
erve the"Important safety notes" sec-
tion (Ypage 290 ).
! Do
not useapoi nted objectsuch asa
screw driver toope nthe cover inthe dash-
boa rd.You couldda mag ethe dashb oard or
the cover . X
Ope nthe driver' sdoo r.
X To ope n:pullcover 0043outwa rds inthe
di recti onofthe arrow and remo veit.
X To clos e:clipin cover 0043onthe front ofthe
da shb oard.
X Fold cover 0043inw ardsunti lit enga ges. Fus
ebo xin the engine compartment
i Obs
erve the"Important safety notes" sec-
tion (Ypage 290 ). G
WARNI
NG
Whe nthe hoodis ope nand thewindsh ield
wi per sare setinmotio n,youcan beinju red
by the wiper linkage .The reisaris kof inju ry.
Alw aysswi tch offthe windsh ield wiper sand
the ignition before opening thehood. X
Ope nthe hood.
X Use adry cloth toremo veany moistur e
from thefusebox.
X To ope n:ope ncla mps 0044.
X Fold cover 0043ofthe fusebox upinthe
di recti onofthe arrow and remo veit. Fus
es
291Breakdo wnassi stanc e Z

X
To clos e:che ckwhethe rthe sealis sea ted
corr ectlyin cove r0043.
X Inse rtbo th openi ngs 0087atthe rearof
cove r0043 into thebrackets onthe fusebo x.
The brackets onthe fusebo xmu stbe com-
pl etel yvis ible in the two openi ngs 0087onthe
fus ebo x.
X Fol ddo wn cove r0043.
X Hoo kcla mps 0044into thefusebo xand
clo se.
X Close thehood. Fus
ebo xin the rear pass engerco m-
partmen t
i Obs
ervethe "Impo rtant safety notes "sec-
tio n(Y page 290 ). The
fusebox inthe rearis locate don the right-
ha nd side when viewe din the directi onoftrav el.
X To ope n:open the seatbe ltgu ide on the
rig ht-ha ndsea tand remove theseatbe lt
(Y page 99).
X Mov ethe right-ha ndsea tas far forw ardas
po ssi ble (Y page 100 ). X
Inse rtyo ur fing ers atthe bottom offront
cove r0044 betwe enthe cove rand floor cove r-
ing .
X Re move frontcover0044 bypulling itforw ard
in the directi onofthe arrow .
X Lif toff top cove r0043 bypulling itin the direc-
tio nof the arrow . Fus
es0087 are acce ssible thro ughthe two open-
ing sin the top ofthe fusebo x.
X To clos e:ins ert the secu ringtagsund er-
nea thtop cove r0043 inthe rece ssesat the
top ofthe fusebo x.
X Fol ddo wn top cove r0043 unti lit enga ges
au dibly.
X Inse rtthe secu ringtagsund erne athtop
cove r0044 inthe rece ssesat the front ofthe
fus ebo x.
X Pu sh front cover0044 tow ardsthe rearunti lit
enga gesaudibly.
X Mov ethe right-ha ndsea tba ckwa rds
(Y page 100 ).
X Hoo kthe seatbe ltinto theseatbe ltgu ide
on the right-ha ndsea t(Y page 99). 29
2 Fu
sesBreakdo wnassis tan ce

Imp
ortant safety notes G
WAR
NING
If you installwhee lsand tires withinc orrect
dime nsion s,theser vicebrak eor whee lsus-
pen sion compo nentsmay bedamag ed.
Ther eis aris kof an acc iden t.
Alw ays replace whee lsand tires withon es
th at comply withth espec ificationsof the
ori gin alpart .
When replaci ngwhee ls,pay attention tothe:
R De sign ation
R Mode l
When replaci ngtires ,pay attention tothe:
R De sign ation
R Man ufacturer
R Mode l G
WAR
NING
A flat tire will severelyaff ectth edriv ing
ch arac teris tics as well asthest eer ing and
brak ingoftheveh icle. Ther eis aris kof an
acc iden t.
Tir es wit hout run-flat charac teris tics :
R Do notdriv eon withaflat tire.
R Chan getheflat tire imm ediat elywithan
eme rgencyspar ewhee lor spar ewhee l.
Alt ern ativel y,co nsult aqualif iedspec ialist
wor kshop.
Tir es wit hrun -flat charac teris tics :
R Obs erveth einf orm ation and warn ing
no teson MOE xten ded tires (run -flat tires ).
Ac cesso ries that are notappr ovedfor your
veh icleby Mer cedes- Benzor are notbein g
used correc tly can impa irth eoper ating safety.
Bef ore purc hasingand usingno n-appr oved
acc essories, visitaqualif iedspec ialist work-
sho pand askabout :
R suit abilit y
R legal stipulat ions
R fac tory rec omm endat ions
Fur ther inform ation reg ardi ngwhee lsand tires
can befoun dund er"Whee l/tire combin ations"
(Y page 318). You
canaskforinform ation reg ardi ngper mit-
te dwhee l/tire combin ationsat an auth orized
Mer cedes- BenzCen ter.
In for mat ionontire pre ssur ecan befoun d:
R on theTir eand Load ingInfor mat ionplac ard
on theB- pillar onthedriv er'sside
(Y page 303)
R in thetire pre ssur etab lein thefuel filler flap
(Y page 145)
R in the"Tir epre ssur e"sec tion Op
era tion Infor
mation ondrivin g
Chec kth etire pre ssur ewhen theveh icleis
heav ilyladen andadjust prio rto atrip.
While driving,pay attention tovibr ations,
no ises andunus ualhan dlingch arac teris tics ,
e. g. pullin gto oneside .This may indicat eth at
th ewhee lsor tires are damag ed.Ifyou sus-
pec tth at atire isdef ective, reduce your speed
imm ediat ely.Stop theveh icleas soo nas pos -
sible tocheckth ewhee lsand tires fordam-
age. Hidden tire damag eco uld also becaus ing
th eunus ualhan dlingch arac teris tics .If you
fin dno sign sof damag e,hav eth etires and
whee lsch ecke dat aqualif iedspec ialist work-
sho p.
When parkingyour vehicle, mak esur eth at the
ti res donotget deform edbythecur bor other
obs tacles. Ifth ey can notbe avoi ded, drive
ove robs tacles suc has cur bsslow lyand atan
obt use angle.Other wise, youmay damag eth e
whee lsor tires . Reg
ularcheck ingofwheels andtires G
WAR
NING
Dam aged tires can caus etire inflat ion pres-
sur eloss .As ares ult,you could lose control
of your vehicle. Ther eis aris kof acc iden t.
Chec kth etires regularly forsign sof dam-
age and replace anydamag edtires imm edi-
ate ly. Op
era tion
293Wheels andtire s Z

Chec
kwheel sand tires for damag eat least
on ce amon th.Chec kwheel sand tires after
driv ingoff-road oron roug hroad s.Dam aged
wheel scan caus ealoss oftirepre ssur e.Pay
part icular attentio nto damag esuc has:
R cut sin thetir es
R punc tures inthetir es
R tears inthetir es
R bulges ontires
R def orm ationor sev ere corrosio non wheel s
Regular lych eck thetir etread dept hand the
co ndi tionof thetread across thewhole width
of all tires (Y page 294). Ifne ces sary, turnth e
fr on twheel sto full lockin ord erto ins pec tth e
inn erside ofthetir esurf ace.
All wheel smust haveavalv ecap topro tect
th evalv eagain stdirt and mois ture.Do not
moun tanyt hingon to thevalv eot her than the
st and ard valvecap orother valvecaps
appro vedbyMer cedes-Ben zfor your vehicle.
Do notuse anyother valvecaps orsyst ems ,
e.g .tir epre ssur emon itorin gsyst ems .
Regular lych eck thepre ssur eof all thetir es
part icular lyprio rto lon gtrips. Adjus tth etir e
pre ssur eas neces sary (Ypage 296).
The servicelife oftires depen ds,amon got her
th ing s,on thefoll owin gfac tors:
R Dr ivin gst yle
R Tire pressur e
R Dis tan cecover ed Not
eson tiretread G
WAR
NING
If th ere isins ufficie nttiretread, thetir etrac-
tio ndec reas es.The tiretread isno longer
able todiss ipatewate r.This increas esthe
ris kof hydr oplan ingwhen theroad surface
is wet ,part icular lywhen theveh icle'sspee d
is no tadapt edtotheroad condi tions.Ther e
is aris kof an acc iden t.
When thetir epre ssur eis toohigh ortoo
low, tires may wear differe ntly at diff ere nt
poin tson thetir etread. Therefore, regularly
ch eck thetir etread dept hand theco ndi tion
of thetread across thewhole widthof all
tir es. Min
imum tiretread dept hon :
R Sum mer tires: 00CEin(3 mm)
R M+S tires: 00CFin(4 mm)
For safe tyreas ons,have thetir es rep lace d
bef ore they reac hth elegally prescribe dmin -
imum tiretread dept h. Mark
ing0043sho wswher eth ebar indicat orfor
tr ead wear (arrow) isint egr atedint oth etir e
tr ead.
Tre adwear indicat ors (TWI )are required by
law. Sixindicat ors are posi tionedon thetir e
tr ead. They arevisible once atread dept hof
appr oximat ely00CD in(1.6 mm)ha sbe en
re ach ed. Ifth is isthecas e,thetir eis so worn
th at itmust berepl aced . Select
ing,mou nting and replacing
tir es
Tire sand wheels
R On lymoun ttir es and wheels ofthesame
type andmake.
Ex cep tion:itis perm issibleto moun ta dif-
fer ent type ormak ein theeven tof aflat
tir e. Obse rveth e"MOE xtend edtires (tires
with run-flat charac terist ics)"sec tion
(Y page 278).
R On lymoun ttir es ofthecor rectsiz eon to the
wheels .
R Break innew tires atmode ratespee dsfor
th efir st 60 miles (100km). Thenew tires
on lyreac hth eir full perf ormanceaft erthis
dist ance. 294
Oper
ationWh eels andtires