2019 MERCEDES-BENZ SL ROADSTER Owner's Manual

If
apr essu reloss warning message
ap pea rsinthemu ltifu nct ion displa y:
R obse rveth eins truct ionsin thedispl aymes -
sages (Ypage 227)
R ch eck thetir efor damag e
R ifdriv ingon,obse rveth efoll owin gno tes
The drivingdist anceposs ibleinrun -flat mod e
is appro ximately50 miles (80kilome ters)
when theveh icle ispart ially laden andappro x-
imat ely19miles (30kilome ters) when the
veh icle isfully laden .
In addit iontotheveh icle load, thedriv ingdis-
tan ceposs ibledepen dsupon :
R Vehi clespee d
R Road condition
R Out side temper ature
The drivingdist anceposs ibleinrun -flat mod e
may bereduc edbyext rem edriv ingcon dition s
or man euver s,or itcan beincreas edthroug ha
mod eratest yle ofdriv ing.
The drivingdist anceposs ibleinrun -flat mod e
is coun tedfrom themom entthetir epres sure
loss warn ingappear sin themult ifunction dis-
play.
You must notexc eed amax imum design
spee dof 50 mph (80km/h).
When replacin gon eor all tires, please observe
th efoll owin gspec ificatio nsfor your vehicle's
tir es:
R Siz e
R Type and
R The "MOE xtend ed" mark
If atir ehas goneflat and cannotbe repl aced
with anMOE xtend edtire, ast andar dtir emay
be used asate mpo rarymeas ure.Makesure
th at you usethepro per sizeand type (summer
or wint ertire).
Vehi clesequippe dwith MOExtend edtires are
no tequippe dwith aTIRE FITkit atthefac tory.
It is theref orerecomm endedthat you addit ion-
ally equip yourvehicle with aTIRE FITkit ifyou
moun ttir es that do notfeat ure run-flat charac -
te ris tic s,e.g .wint ertires. ATIRE FITkit can be
obt aine dfrom aqualifi edspec ialist workshop,
for exam ple. Imp
ortant safety notes G
WAR
NING
When youdrivein emer gencymod e,the
han dlingch arac teris tic sare impair ed.e.g.
when cornerin g,when acceler atingst ron gly
and when braking.Ther eis aris kof an acc i-
den t.
Do notexc eed themax imum specified
spee d.Avoid any abrupt steer ing and driving
man euver sas well asdriv ingoverobst acles
(cur bs,pot holes ,off -road). Thisapplies ,in
part icular ,to aloaded vehicle.
St op driv inginemer gencymod eif you
no tice:
R bang ingnoise
R veh icle vibratio n
R smo kewhic hsme llslikerubbe r
R con tinuous ESP®
int erv entio n
R crack sin thetir eside walls
Af terdriv inginemer gencymod e,have the
rim sch eck edbyaqualifi edspec ialist work-
sho pwith regard totheir further use. The
def ective tiremust berepl aced ineve ry
cas e. TIR
EFIT kit
Imp ortant safety notes TIRE
FITis atir esealan t.
You canuseTIRE FITto seal punc tures ofup to
0. 16 in(4 mm ),part icular lythose inthetir e
tr ead. YoucanuseTIRE FITat out side temper a-
tur es down to00F84 ‡(00F82 0†). G
WAR
NING
In thefoll owin gsit uatio ns,th etir esealan tis
unabl eto pro vide sufficientbreak down
assis tance, asitis unabl eto seal thetir e
pro perl y:
R there arecutsor punc tures inthetir e
large rth an those men tionedabov e.
R thewheel rimisdamag ed.
R you have drivenatver ylow tirepres sures
or on aflat tire. Flat
tire
279Break down assistance
Z

There
isarisk ofan accident .
Do not drive thevehicle. Contact aqualified
specialist workshop. G
WARNIN
G
The tiresealant isharmful andcauses irrita-
tion. Itmust notcome intocontactwith your
skin, eyesorclothin gor be swallowe d.Do
not inhale TIREFIT fumes.Keeptiresealant
away fromchildren. Thereisarisk ofinjury.
If you come intocontactwith thetire seal-
ant, observe thefollowing:
R Rinse offthe tire sealant fromyourskin
immediately withwater.
R Ifthe tire sealant comesintocontactwith
your eyes, immediately rinsethem thor-
oughly withclean water.
R Iftire sealant isswallowe d,immediately
rinse yourmouth outthoroughly anddrink
plenty ofwater. Donot induce vomitin g,
and seek medical attentionimmediately.
R Immediately changeoutofclothin gwhich
has come intocontactwith tiresealant.
R Ifan allergic reaction occurs,seekmedi-
cal atten tionimmediately.
! Do
not operate thetire inflation compres-
sor forlonger thaneight minutes atatime
without abreak. Itmay otherwise overheat.
The tireinflation compressor canbeoper-
ated again onceithas cooled down.
Comply withthemanufact urer’ssafety instruc-
tions onthe stick eron the tire inflation com-
pressor. Using
theTIREFIT kit X
Do not remove anyforeign objectswhich
have penetr atedthetire, e.g.screws or
nails.
X Remove thetire sealant bottle,theaccom-
panying TIREFITstickerand thetire inflation
compressor fromthestowage wellunder-
neath thetrunk floor(Ypage 277).
X Aff ixpart 0043ofthe TIREFIT stickerto the
instr ument cluster withinthedriver's fieldof
vision.
X Aff ixpart 0044ofthe TIREFIT stickernear the
valve onthe wheel withthedefect ivetire. X
Pull plug 0085with thecable andhose 0083out
of the housing.
X Scr ew hose 0083ontoflange 0084oftire sealant
bottle 0043.
X Place tiresealant bottle0043head down into
recess 0044ofthe tire inflation compressor .280
Flat
tireBr eakdown assistance

X
Remo vethecap from valv e006B onthefault y
ti re.
X Sc rew filler hos e006C onto thevalv e.
X Inser tplug 0085intoth esoc ketof thecig a-
ret teligh teror intoa12 Vpower socketin
your vehicle.
X Turn theSm artKey topos ition 0047intheign i-
ti on lock(Y page 126).
X Pre sson and offswit ch0087 onthetire infla-
ti on compr essortoI.
The tire inflat ion compr essorisswit ched on.
The tire isinf lat ed.
Fir st,ti re sealan tis pump edintoth etire.
The pressur ecan brieflyriseto appr ox-
imat ely500kP a(5. 0bar/7 3psi) .
Do not swit choff thetire inflation com -
pr essor during this ph ase .
X Let thetire inflat ion compr essorrun fora
max imum offivemin utes.The tire sho uld
th en hav eatt ain ed apre ssur eof at least
18 0kP a(1. 8bar/ 26psi) .
If atire pre ssur eof 18 0kP a(1. 8bar/2 6psi)
has been attain ed afterfivemin utes:
(Y page 281).
If atire pre ssur eof 18 0kP a(1.8 bar/26 psi)
ha snot been atta inedafte rfiv eminu tes:
(Y page 281 ).
If tire sealant hasesca ped, cle an itoff affecte d
are asasquickl yas possi ble. Itis pre fera ble to
us ecle an water.
If yo ur clo thes aresoiled wi th tire sealant,
ha ve them cleane dwi th perchl oroethy lene ata
dry cleane ras soo nas possi ble. Tire
pres sure notreac hed If
apre ssu reof180 kPa(1.8 bar/26 psi)ha s
not been atta inedafte rfiv eminu tes:
X Swi tch offthe tire inflation comp ressor .
X Unscr ewthe fillerhos efrom thevalve ofthe
fau ltytire .
Note thattire sealant ma yesca pewhen you
uns crew thefillerhos e.
X Ver yslow lydri ve forw ardsor reve rse
ap pro xima tely30 ft(10 m).
X Pu mp upthe tire again.
After ama ximu mof fiveminu testhe tire
pre ssu remu stbe atleas t180 kPa(1.8 bar/
26 psi). G
WA
RNING
If the required tire pressu reisnot reached
afte rthe specified time ,the tire istoo badly
da mag ed.The tiresealant cannot repairthe
tire inthis insta nce. Dama gedtiresand a
tire pressu rethat istoo low can signifi cantl y
imp airthe vehi cle'sbra king anddriving
cha racte ristics. Thereisaris kof acci dent.
Do not continu edri ving .Co ntact aqu alifi ed
spe cialist wo rksho p.
Tire press urereac hed G
WARNI
NG
A tire tempo rarily sea led wi th tire sealant
imp airs the vehi cle'sdri ving characte ristics
and isnot suita ble for driving athig her
spe eds.The reisaris kof an acci dent.
Ada ptyour driving styleacco rdingly and
dri ve care fully.Do not excee dthe maxi mum
per mis siblespe edfor atire sealed wi th tire
sea lant.
The maxi mum permis siblespe edfor atire
sea led wi th tire sealant is50 mph (80km/h ).
The upper partof the TIREFIT sticke rmus tbe
affi xed tothe instru ment cluster inthe driver' s
fie ldof vis ion.
! Re
sid ue from thetire sealant may come
ou tof the fillerhos eafte rus e. Thi scou ld
cau sestai ns.
The refo re,place thefillerhos ein the plasti c
ba gwhi chcontai nedtheTIREFIT kit. Fl
at tire
281Breakdo wnassi stanc e Z

H
Envir
onme ntalnote
Hav eth eused tiresealan tbot tledispo sed
of prof essio nally, e.g.at aqualifie dspec ial-
ist work shop.
If atir epres sure of18 0kPa (1.8 bar/26 psi)
ha sbe en achiev ed after ama xim um perio dof
ten minute s:
X Swi tch offthe tire inflatio ncomp ressor .
X Unsc rewthefillerhos efro mthe valve ofthe
fa ulty tire .
X Stow thetire sealant bottle and thetire
inf latio ncomp ressor .
X Pul law ayimme diately.
X Stop after drivin gfor appro xim atelyten
mi nute sand checkthe tire pressu rewith
the tire inflatio ncomp ressor .
The tirepressu remu stnow beatleas t
130 kPa(1.3 bar/19 psi). G
WA
RNING
If the required tire pressu reisnot reache d
af ter drivin gfor asho rtpe rio d,the tire istoo
ba dlyda ma ged. The tiresealant cann ot
rep airthe tire inthi sins tance .Dam aged
tire sand atire pressu retha tis too low can
si gni ficantl yim pairthe vehicle'sbra king and
dri vin gcha racteri stics. The reisaris kof
acc ident.
Do not conti nuedrivin g.Co ntact aqu alifi ed
sp eci alistwo rksh op.
i In
cas essuch asthe one menti oned
ab ove ,conta ctan author izedMe rced es-
Benz Center. Orcall1-800 -FOR-MER Cedes
(i n the USA) or1-800 -387-0 100(in Ca nad a).
X Co rre ctthe tire pressu reifit is sti llat leas t
130 kPa(1.3 bar/19 psi). See theTire and
Loa ding Info rma tionplaca rdon the driver 's
si de B-pi llar or the tire pressu retab lein the
fu el fillerfla pfor values .
X To incre ase thetire pres sure :sw itch on
the tire inflatio ncomp ressor . X
To redu cethe tire pres sure :de pre sspre s-
su re release button 006Dnext topre ssu re
ga ge 006E.
X Wh enthe tire pressu reiscorr ect, unscrew
the fillerhos efro mthe valve ofthe sealed
tire .
X Scre wthe valve cap onto thetire valve of
the sealed tire .
X Pu llthe tire sealant bottle outof the tire
inf latio ncomp ressor .
The fillerhos erem ains atta chedto the tire
se alant bottle .
X Driv eto the nearestqu alifi ed speci alist
wo rksh opand have the tire change dthe re.
X Hav ethe tire sealant bottle replaced as
soo nas possi ble at aqu alifi ed speci alist
wo rksh op.
X Hav ethe tire sealant bottle replaced every
fou rye arsat aqu alifi ed speci alistwo rksh op. Batte
ry(veh icle ) Impo
rtant safety notes
Spe cialtoo lsand expertknow ledg ear e
req uired when working on the battery ,e.g .
rem ovaland installatio n.Yo usho uld the refore
ha ve allwo rkinv olvin gthe battery carriedou t
at aqu alifi ed speci alistwo rksh op. G
WA
RNING
Wo rkcar riedou tinco rrectly onthe battery
can lead ,for exa mpl e,to asho rtcir cui tand
thu sda ma gethe vehicleelectro nics.Thi s
can lead tofunctio nres tric tions applying to
sa fety -releva ntsyste ms, e.g.the lighti ng
sy ste m, the ABS (anti-l ock braking syste m)
or the ESP ®
(El ectro nicStab ility Pro gram). 28
2 Battery
(veh icle )Break downass istanc e

The
operating safetyofyour vehicle maybe
restr icted.
You could losecontrolofthe vehicle, for
example:
R when braking
R in the event ofabrupt steeringmaneuvers
and/or whenthevehicle's speedisnot
adapted tothe road condit ions
There isarisk ofan accident .
In the event ofashort circuit orasimilar
incident ,cont actaqualified specialist work-
shop immediately. Donot drive anyfurther.
You should haveallwork involving thebat-
tery carried outataqualified specialist
workshop.
For further informationabout ABSandESP®
,
see (Ypage 60)and (Ypage 65). G
WARNIN
G
Elect rostat icbuild-up canlead tothe crea-
tion ofsparks, whichcouldignite thehighly
explosive gasesofabattery. Thereisarisk
of an explosion.
Before handling thebattery, touchthevehi-
cle body toremove anyexistin gelectrost atic
build-up.
The highly flammable gasmixt ureforms when
charging thebattery aswell aswhen jump-
start ing.
Always makesurethatneither younorthebat-
tery iselectrost aticallycharged. Abuild-up of
electrost aticcharge canbecaused, forexam-
ple:
R by wearing clothingmade fromsynthet ic
fibers
R due tofrict ionbetween clothingand seats
R ifyou push orpull thebattery acrossthe
carpet orother synthet icmaterials
R ifyou wipe thebattery withacloth G
WARNIN
G
During thecharging process,abattery pro-
duces hydrogen gas.Ifashort circuit occurs
or sparks arecreated, thehydrogen gascan
ignite. Thereisarisk ofan explosion. R
Make surethatthepositive terminalof a
conn ected battery doesnotcome into
cont actwith vehicle parts.
R Never placemetal object sor tools ona
battery.
R Itis important thatyouobserve the
described orderofthe battery terminals
when connectin gand disconn ectingabat-
tery.
R When jump-st arting,makesurethatthe
battery poleswithidentical polarityare
conn ected.
R Itis particularly importanttoobserve the
described orderwhen connectin gand dis-
conn ectin gthe jumper cables.
R Never connectordisconn ectthe battery
termin alswhile theengine isrunnin g. G
WARNIN
G
Batt eryacid iscaustic. Thereisarisk of
injury.
Avoid contactwith skin, eyesorclothin g.Do
not inhale anybattery gases.Donot lean
over thebattery. Keepchildren awayfrom
batteries. Washawaybattery acidimmedi-
ately withplenty ofclean water andseek
medical attention. H
Environmental
note Batt
eries containpollutants.
It is illegal todispose of
them withthehousehold
rubbish. Theymust becol-
lected separately anddis-
posed ofinan environ men-
tally responsible recycling
system. Dispose
ofbatteries inan
environ mentallyresponsible
manner .Take discharged
batteries toaqualified spe-
cialist workshop ortoacol-
lection pointforused bat-
teries. Bat
tery (vehicl e)
283Breakdown assistance Z

!
Have
thebattery regularlychecked ata
qual ified speciali stworkshop.
Comply withtheservice intervals inthe
Maintenance Booklet,orcont actaqual ified
speciali stworkshop formore information.
! Alway
shave work onbatteries carriedout
at aqual ified speciali stworkshop.
Should it,inexceptional circumstances, be
absolu telynecessary todisconnect the12-
volt battery yourself,please observe thefol-
lowing:
R Secure thevehicle toprevent itfrom roll-
ing awa y.
R Switch offthe ignition.
R Disconn ectthe negative terminalfirstand
then thepositive terminal.
After thework hasbeen done, install the
battery andreplace thecover ofthe positive
terminal clampfirmly.
Comply withsafety precautions andtake pro-
tect ivemeasures whenhandling batteries. Risk
ofexplosion. Fire,
open flames andsmoking are
prohibited whenhandling thebat-
tery. Avoid creating sparks. Battery
acidiscaustic. Avoidcon-
tact with skin, eyesorclothing.
Wear suitabl eprotective clothing,
especial lygloves, apronandface-
guard.
Rinse anyacid spills immediately
with clear water. Contact aphysi-
cian ifnecessary. Wear
eyeprotection. Keep
children away. Observe
thisOperator's Manual.
For safety reasons, Mercedes-Benz recom-
mends thatyouonly usebatteries whichhave been
tested andapproved foryour vehicle by
Mercedes-Benz .These batteries provide
increased impactprotection toprevent vehicle
occupants fromsuffering acidburns should
the battery bedamage din the event ofan
accident.
In order forthe battery toachieve themaxi-
mum possible servicelife,itmust alwaysbe
sufficiently charged.
Like other batteries, thevehicle battery may
discharge overtime ifyou donot use thevehi-
cle. Inthis case, havethebattery disconnec-
ted ataqual ified speciali stworkshop. Youcan
also charge thebattery withacharger recom-
mended byMercedes-Benz .Contact aqual i-
fied speciali stworkshop forfurther informa-
tion.
Have thebattery condition ofcharge checked
more frequently ifyou usethevehicle mainly
for short tripsorifyou leave itstanding idle
for alengthy period.Consult aqual ified spe-
cialist workshop ifyou wish toleave yourvehi-
cle parked foralong period oftime.
Remove theSmartKey ifyou park thevehicle
and donot require anyelectrical consumers.
The vehicle willthen usevery little energy,
thus conserving batterypower.
After aninterruption tothe power supply,e.g.
due toadischarged battery,youmust reset
the clock (seetheDigital Operator's Manual). Charging
thebattery G
WARNING
During charging andjump-startin g,explosive
gases canescape fromthebattery. Thereis
a risk ofan explosion.
Particularl yavoid fire,open flames, creating
sparks andsmoking. Ensurethereissuffi-
cient ventilation whilecharging andjump-
starting. Donot lean over abattery. G
WARNING
Battery acidiscaustic. Thereisarisk of
injury.
Avoid contactwith skin, eyesorclothing. Do
not inhale anybattery gases.Donot lean
over thebattery. Keepchildren awayfrom
batteries. Washawaybattery acidimmedi- 284
Bat
tery (vehic le)Breakdown assistance

ate
lywith plentyof cle an wate rand seek
medi calattent ion. G
WAR
NING
A disc harg edbat tery can freez eat temper a-
tur es below freez ing poin t.When jump-start-
ing theveh icle orchargin gth ebat tery,
gases canescape from thebat tery. Ther eis
a risk ofan exp losio n.
Allo wthefroz en bat tery to thaw out befo re
ch argin git or jum p-starting.
! On
lyuse battery charge rswith amax imum
ch argin gvolt age of14 .8V.
! On
lych arge thebat tery usin gth ejum p-
st art ing con nectionpoin t.
The jump-startingcon nectionpoin tis in the
eng inecom partmen t.
If th eind icat or/warn inglamps donotlight up
at low temper atures,itis ver ylike lythat the
disc harg edbat tery has froz en. Inthis cas e,
you may neither charge thebat tery norjum p-
st art theveh icle.The servicelife ofath awed-
out battery may beshor ter. The start ing char-
act eris ticscan beimpair ed,part icular lyat low
te mper atures.Hav eth eth awed- outbattery
ch eck edataqualifi edspec ialist workshop.
Read thebat tery charge r'soper atingins truc-
tio ns befo rechargin gth ebat tery.
X Open thehood .
X Con nectth ebat tery charge rto theposit ive
te rm inal and ground pointin thesame order as
when connectingth edon orbat tery inthe
jum p-startingproc edure (Ypage 285). Rep
lacing the12 Vbat tery
Obse rveth eno teson the12 Vbat tery
(Y page 282).
Mer cedes-Ben zrec omm endsth at you have
th e12 Vbat tery repl aced ataqualifi edspe-
cialis twork shop,e.g .at an auth orized
Mer cedes-Ben zCent er.
If you want torepl ace thebat tery yours elf,
obse rveth efoll owin gno tes:
R Always replace adefe ctive battery with a
bat tery whic hmeet sth espec ificrequi re-
men tsof theveh icle.
The vehicle isequippe dwith anAGM
(Ab sorben tGlass Mat)te ch no logy battery.
Full vehicle function alit yis on lyguaran teed
with anAGM battery. For safe tyreas ons,
Mer cedes-Ben zrec omm endsth at you only
use batteries whic hhave been tested and
appro vedforyour vehicle byMer cedes-
Ben z.
R Use detach able partssuc has breat her
hose s,ang led con nectingpiec esorterm inal
cov ers from thebat tery whic his to be
repl aced .
R Mak esure that theven those isalways con-
nec tedto theorig inal open ingonthebat -
te ry side.
R Inst all existing orsupplie dcel lcaps topre-
ven tgases orbat tery acid from escapin g.
R Mak esure that thedet ach able partsare
con nectedagain inthesame way. Jum
p-st ar tin g
For thejum p-startingproc edure ,use onlythejum p-startingcon nectionpoin tin theeng inecom -
part men t,con sisting ofaposit iveterm inal and agro und point. G
WAR
NING
Bat tery acid iscaus tic.Ther eis arisk ofinjury.
Av oid contactwith skin, eyes orclo thing .Do notinh ale any battery gases .Do notlean overth e
bat tery. Keep childre naway from batteries .Wash awaybattery acid immediat elywith plentyof
cle an wate rand seek medicalattent ion. Jum
p-st ar tin g
285Break down assistance Z

G
WARNING
During chargingand jump-starting, explosivegase scan escap efrom thebattery .There isa
risk ofan explo sion.
Particu larlyavoi dfire, open flames,creating sparksand smoking. Ensurethereissuffi cient
ventila tionwhilechargi ngand jump-starting. Donot leanover abattery . G
WARNING
During thechargi ngprocess ,a battery produceshydrogen gas.Ifashort circuitoccurs or
spar ksare created ,the hydrogen gascan ignite. Thereisarisk ofan explo sion.
R Make surethattheposi tive terminal ofaconnected batterydoesnotcome intocontact with
vehicl eparts.
R Never placemetal objects ortools onabattery .
R Itis impor tantthatyouobse rvethe descri bedorder ofthe battery terminal swhen connect-
ing and disconnecting abattery .
R When jump-starting, makesurethatthebattery poleswith identical polarityareconnected.
R Itis particu larlyimpor tanttoobse rvethe descri bedorder whenconnecting anddisconnect-
ing the jumper cables.
R Never connect ordisconnect thebattery terminal swhi lethe engine isrunning. G
WARNING
A discha rgedbattery canfreeze attempera turesbelow freezing point.Whenjump-starting the
vehicl eor chargi ngthe battery ,gase scan escap efrom thebattery .There isarisk ofan explo -
sion.
Allow thefrozen battery tothaw outbefore chargingitor jump-starting.
! Avoid
repeatedand lengthy starting attempts. Otherwise,the catal yticconverter couldbe
dama gedbythe non-combusted fuel.
If the indica tor/warni nglamp sdo not light up atlow tempera tures,itis very likelythat thedis-
charge dbattery hasfrozen. Inthis case, youmay neither chargethebattery norjump-start the
vehicl e.The service lifeofathawe d-outbattery maybeshorter. Thestarting characteristics can
be impa ired,particu larlyat low tempera tures.Havethethawe d-outbattery checked ataqua li-
fied speci alist worksho p.
Do not start thevehicl eusi ng arapi dchargi ngdevi ce.Ifyou rvehicl e'sbattery isdischa rged,the
engine canbejump-started fromanother vehicleor from adonor battery using jumper cables.
Observe thefollowi ngpoints:
R The battery isnot accessi bleinall vehicl es.Ifthe other vehicle'sbattery isnot accessi ble,
jump-start thevehicl eusi ng adonor battery orajump-starting device.
R You may onlyjump-start thevehicl ewhen theengine andexhau stsystem arecold.
R Do not start theengine ifthe battery isfrozen. Letthe battery thawfirst.
R Only jump-start frombatterie swith a12 Vvoltag erating.
R Only usejumper cableswhi chhave asuffi cient cross-section andinsul ated terminal clamps.
R Ifthe battery isfull ydischa rged,leavethe battery thatisbei ng used tojump-start connected
for afew minutes beforeattempting tostart. Thischarge sthe battery slightly.
R Make surethatthetwo vehicl esdo not touch. 286
Jump-star
tingBreakdown assistance