2019 MERCEDES-BENZ SLC ROADSTER engine

teri
stics, e.g.wi nter tires.ATIR EFIT kitmaybe
ob tained fromaqu alifi ed speci alistwo rksh op.
Info rma tionon cha nging and mou nting wheels
(Y page 288 ).
X Stop thevehicleon solid,non-s lipp ery and
le vel ground ,as faraw ay aspossi ble fro m
tra ffic.
X Swi tch onthe hazar dwa rning lamps .
X Secu rethe vehicleag ainst rolling away
(Y page 134 ).
X Ifpo ssi ble, bri ng the frontwh eelsinto the
stra ight-a head positio n.
X Swi tch offthe engine.
X Veh icle swi tho utKEYLES S-G O:rem ove
the Sma rtKeyfro mthe igniti onlock.
X Veh icle swi th KEYLES S-G O:open the driv-
er' sdo or.
The vehicleelectro nicsarenow inpo sitio n
005A. Thisis the same asthe Sma rtKeyha vin g
be en rem oved.
X Veh icle swi th KEYLES S-G O:rem ove the
Star t/Stop button fromthe igniti onlock
(Y page 118 ).
X Ma kesure tha tthe passe nge rsarenot
end angeredas the ydo so. Makesure tha t
no one isnea rthe dange rar ea while a
wh eelis be ing change d.Anyo newhois not
di rectl yas sisti ng inthe wheelcha nge
sho uld, for exa mpl e,sta nd behind the bar-
rie r.
X Ge tou tof the vehicle. Pa yatte ntionto tra f-
fic cond itions when doing so.
X Close thedriver 'sdo or. MOE
xtende dtire s(ti res with run-f lat
prope rties)
Ge neral notes Wi
th MOExte ndedtire s(ti res with runfla t
cha racteri stics) ,yo ucan conti nuetodrive your
veh icleeve nif the reisatota llo ss ofpre ssu re
in one ormor etire s.The affecte dtire mustnot
sho wany clearly vis ible da ma ge.
Yo ucan reco gnizean MOExte ndedtire bythe
MOExte ndedma rking which appe arson the
si de wa llof the tire.Yo uwi llfin dthi sma rking
next tothe tire size designa tion,the load -be ar-
ing capacityand thespee dind ex
(Y page 283 ). MOExte
ndedtire sma yonl ybe used incon-
junc tionwi th an acti vetire pressu reloss wa rn-
ing syste mor with an acti vetire pressu remon-
ito r.
If apres sure loss wa rning mes sage
appe arsinthe multi function displa y:
R ob serve the instructio nsinthe disp laymes -
sa ge s(Y page 201 )
R che ckthe tire fordama ge
R ifdri vin gon, observe the followi ng note s
Th edri vin gdista nce possi ble in run-fl atmod e
is ap pro xim ately50 miles(80 kilome ters)
wh en the vehicleis pa rtia lly la de nand appro x-
im ate ly19 miles(30 kilome ters)wh en the
veh icleis fully la de n.
In additio nto the vehicleload ,the drivin gdis-
tance possi ble de pends upon:
R Veh iclesp ee d
R Ro ad cond ition
R Ou tside temp erature
Th edri vin gdista nce possi ble in run-fl atmod e
ma ybe red uce dby extre medrivin gcond itions
or ma neu vers,or itcan beincr easedthro ugha
mod eratesty leof dri vin g.
Th edri vin gdista nce possi ble in run-fl atmod e
is cou nted fromthe mom entthetire pressu re
lo ss wa rning appe arsin the multifu nctio ndis-
pl ay .
Yo umu stnot exce edama xim um design
sp ee dof 50 mph (80km/h ).
Wh enrep lacing oneoralltire s,plea se observe
the followi ng speci ficati ons foryour veh icle's
tire s:
R Size
R Type and
R Th e"M OExte nded"ma rk
If atire hasgo ne flatand cann otbe rep laced
wi th an MOExte ndedtire ,a sta nda rdtire may
be used asatemp orarymea sure. Makesure
tha tyo uus ethe propersi ze and type(sum mer
or winter tire).
Veh icles equipp ed with MOExte ndedtire sar e
not equipp ed with aTIR EFIT kitatthe factory .
It is the refore recomm endedtha tyo uad ditio n-
al ly eq uip yo ur veh iclewi th aTIR EFIT kitifyo u
mou nttire stha tdo not featureru n-fl atcha rac-
teri stics, e.g.wi nter tires.ATIR EFIT kitcan be
ob tained fromaqu alifi ed speci alistwo rksh op,
for exa mpl e. Fl
at tire
253Break downass istanc e

Alw
aysma kesure tha tnei ther younor thebat-
tery iselectro statica lly cha rged.Abu ild-u pof
el ectro static cha rge can becau sed,for exa m-
pl e:
R by wearing clothing ma de from syntheti c
fib ers
R du eto frictio nbe twe enclothing and seats
R ifyo upu sh orpullthe battery across the
car petor othe rsy ntheti cma teri als
R ifyo uwi pe the battery with aclo th G
WA
RNING
Dur ing the charging pro ces s,aba ttery pro-
du ces hydro gen gas.Ifasho rtcirc uitoccu rs
or spa rks arecrea ted,the hydro gen gascan
ig nite .The reisaris kof an exp losion.
R Ma kesure tha tthe positive term inalof a
conne ctedbattery does not come into
conta ctwith veh iclepa rts.
R Nev erplace meta lob jects ortool son a
ba ttery .
R Itis imp orta nttha tyo uob ser vethe
de scri bedord erofthe battery terminals
wh en conne ctinganddisconne ctingaba t-
tery .
R Whe njum p-sta rting,ma kesure tha tthe
ba ttery poleswi th identi calpolarity are
conne cted.
R Itis pa rticu larly imp orta ntto obser vethe
de scri bedord erwh en conne ctinganddis-
conne ctingthejumpercab les.
R Nev erconne ctor disconne ctthe battery
term inalswh ile the engineisrunning . G
WA
RNING
Batte ryaci dis cau stic.The reisaris kof
inju ry.
Avoi dconta ctwith ski n,eyes orclo thing. Do
not inhale any battery gases .Do not lean
ove rthe battery .Kee pchi ldren away from
ba tteri es.Washaway battery acidimm edi-
ate lywith plenty ofcle an water and seek
med icalatte ntion. H
En
viron men talnote Batte
riesconta inpo lluta nts.
It is ille ga lto dispo seof
them with the household
ru bb ish. The ymu stbe col-
le cted separate lyand dis-
po sed ofinan envi ronm en-
tal lyres ponsi ble recy cling
sy stem . Dis
pose ofbatteri esinan
envi ronm entally res ponsi ble
ma nner. Take discha rged
ba tteri estoaqu alifi ed spe -
cia list wo rksh oportoacol -
le ctio npo int for used bat-
teri es.
! Hav
ethe battery regular ly che cked ata
qu alifi ed spe cialist wo rksh op.
Co mpl ywi th the service intervalsin the
Ma inte nance Booklet,or conta ctaqu alifi ed
spe cialist wo rksh opfor more informa tion.
! Alw
aysha ve workon batteri escar riedou t
at aqu alifi ed spe cialist wo rksh op.
Shou ldit, inexce ptiona lcirc umstances ,be
ab sol ute lynece ssaryto disconne ctthe 12-
vol tba ttery yoursel f,plea se obser vethe fol-
lo wi ng:
R Secu rethe vehicleto pre vent itfrom roll-
ing away.
R Swi tch offthe igniti on.
R Dis conne ctthe negative term inalfir st and
then thepositive term inal.
The trans mission islocked inpo sitio n005D
afte rdi sconne ctingthebattery .
After theworkhasbe en done, installthe
ba ttery andreplace the cove rof the positive
term inalcla mp firmly .
Co mpl ywi th safety precau tions and take pro-
tecti vemea sures when handl ing batteri es. Ri
sk ofexp losion. Fir
e,op en flames andsmoking are
pro hibi ted when handl ing the bat-
tery .Avoi dcrea ting sparks. 25
8 Battery
(vehi cle)Breakdo wnassis tan ce

If
the indicator/wa rninglampsdo not light up
at low temperature s,itis very likely thatthe
discha rgedbattery hasfrozen. Inthis case,
you may neither chargethebattery norjump-
start thevehicle .The service lifeofathawed -
out battery maybeshorter. Thestarting char-
acteristics canbeimpa ired, particul arlyatlow
temperature s.Have thethawed -outbattery
checked ataqua lifiedspecia listworkshop.
Rea dthe battery charger's operatinginstruc-
tions before charging thebattery.
X Open thehood.
X Connect thebattery charger tothe positive
terminal andground pointinthe same order
as when connecting thedonor battery inthe
jump-starting procedure(Y page 260). Replaci
ngthe 12Vbattery
Observe thenotes onthe 12Vbattery
(Y page 257).
Mercedes-Benz recommendsthatyouhave
the 12Vbattery replacedataqua lifiedspe-
ciali stworkshop, e.g.atan authori zed
Mercedes-Benz Center. If
you want torepla cethe battery yourself,
observe thefollow ingnotes:
R Alway srepla ceadefective batterywitha
battery whichmeets thespecific require-
ments ofthe vehicle .
The vehicle isequi pped withanAGM
(Absorbent GlassMat) technology battery.
Full vehicle functionality isonly guaranteed
with anAGM battery. Forsafety reasons,
Mercedes-Benz recommendsthatyouonly
use batteries whichhavebeen tested and
appro vedforyou rvehicle byMercedes-
Benz.
R Use detachab leparts suchasbreather
hoses, angled connecting piecesorterminal
covers fromthebattery whichisto be
repla ced.
R Make surethatthevent hose isalw ays con-
nected tothe origina lopening onthe bat-
tery side.
R Install existing orsupp liedcellcaps topre-
vent gases orbattery acidfrom escapi ng.
R Make surethatthedetachab leparts are
connected againinthe same way. Jump-star
ting
For thejump-starting procedure,use only thejump-starting connectionpointinthe engine com-
partment, consisting ofapositive terminal andaground point. G
WARNING
Battery acidiscaustic. Thereisarisk ofinjury.
Avoid contact withskin, eyesorclothing. Donot inhale anybattery gases.Do not leanover the
battery. Keepchildre nawa yfrom batteries. Washawaybattery acidimmedi atelywithplenty of
clean water andseek medica lattention. G
WARNING
During charging andjump-starting, explosivegases canescape fromthebattery. Thereisa
risk ofan explosi on.
Particul arlyavoid fire,open flames ,creating sparksandsmoking. Ensurethereissufficie nt
ventilation whilecharging andjump-starting. Donot leanover abattery. G
WARNING
During thecharging process,abattery produceshydro gengas. Ifashort circuit occurs or
sparks arecreated, thehydro gengascan ignite. Thereisarisk ofan explosi on. 260
Jump-st
artingBreakd ownassis tance

R
Make surethatthepositive terminal ofaconn ected battery doesnotcome intocontactwith
vehicle parts.
R Never placemetal object sor tools onabattery.
R Itis important thatyouobserve thedescribed orderofthe battery terminals whenconnect-
ing and disconnec tingabattery.
R When jump-st arting,makesurethatthebattery poleswithidentical polarityareconn ected.
R Itis particularly importanttoobserve thedescribed orderwhenconnecting anddisconnec t-
ing the jumper cables.
R Never connectordisconnec tthe battery terminals whiletheengine isrunning. G
WARNING
A discharged batterycanfreeze attemperatures belowfreezing point.Whenjump-st artingthe
vehicle orcharging thebattery, gasescanescape fromthebattery. Thereisarisk ofan explo-
sion.
Allow thefrozen battery tothaw outbefore charging itor jump-st arting.
! Avoid
repeated andlengthy startingattempt s.Otherwise, thecatalytic convertercould be
damaged bythe non- combusted fuel.
If the indicator/warnin glamps donot light upatlow temperatures, itis very likely thatthedis-
charged batteryhasfrozen .In this case, youmay neither chargethebattery norjump-st artthe
vehicle. Theservice lifeofathawed-out batterymaybeshorter. Thestartin gcharacterist icscan
be impaired, particularly atlow temperatures. Havethethawed-out batterycheckedataqual i-
fied specialist workshop.
Do not start thevehicle usingarapid charging device.Ifyour vehicle's batteryisdischarged, the
engine canbejump-st artedfromanother vehicleorfrom adonor battery usingjumper cables.
Observe thefollowing points:
R The battery isnot accessible inall vehicles. Ifthe other vehicle's batteryisnot accessible,
jump-st artthe vehicle usingadonor battery orajump-st artingdevice.
R You may onlyjump-st artthe vehicle whentheengine andexhaust systemarecold.
R Do not start theengine ifthe battery isfrozen .Let the battery thawfirst.
R Only jump-st artfrom batteries witha12 Vvoltage rating.
R Only usejumper cableswhichhaveasufficient cross-sectionandinsulated terminalclamps.
R Ifthe battery isfully discharged, leavethebattery thatisbeing usedtojump-st artconn ected
for afew minutes beforeattempt ingtostart. Thischarges thebattery slightly.
R Make surethatthetwo vehicles donot touch.
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 118). Jump
-starting
261Breakdown assistance Z

Trans
portingthe vehic le
Veh icle swi th auto matic transmission !
Wh
enthe vehicleis load ed for transp ort,
the frontand rearaxl es mu stbe stationar y
and onthe same transp orta tionveh icle.
Po sitio ning overthe conne ctionpo int ofthe
tra nsp ortveh icleis not permi tted .The drive
tra inma yothe rwise be dama ged.
Al lve hic les !
Yo
uma yonl ysec urethe vehicleby the
wh eels,not byparts ofthe vehiclesu ch as
axl eor stee ringcomp onents. Othe rwise, the
veh iclecou ldbe dama ged.
The towingeyecan beused topullthe vehicle
onto atra iler or tra nsp orte rfor transp orting
pu rpo ses .
X Tu rn the Sma rtKeyto positio n0048 inthe igni-
tio nlock.
X Shi ftthe transmi ssion topositio n005C.
As soon asthe vehic lehas been loade d:
X Pre vent thevehiclefro mrol ling away by
ap plying the electri cpa rkin gbra ke.
X Shi ftthe transmi ssion topositio n005D.
X Tu rn the Sma rtKeyto positio n0092 inthe igni-
tio nlock and remove theSma rtKeyfro mthe
ig niti onlock.
X Secu rethe vehicle. Tow
-starti ng(emerg ency engine
starti ng)
! Veh
icles with automa tictransmi ssion mu st
not betow -sta rted .Yo ucou ldothe rwise
da ma gethe automa tictransmi ssion. Yo
ucan find informa tionon "Jum p-starting "at
(Y page 260 ). Fu
ses Impo
rtant safety notes G
WA
RNING
If yo uma nipulate orbridgeafa ulty fuse orif
yo urep lace itwi th afu se with ahighe r
am perage ,the electri ccab lescou ldbe ove r-
lo ad ed .Thi scou ldres ultin afir e. The reisa
ris kof an acc ident and injury.
Alw aysrep lace faulty fuses with the speci -
fie dnew fuses havin gthe corr ectamperage .
Blo wn fuses mustbe rep laced with fuses of
the same rating ,wh ich youcan reco gnizeby
the colorand value. The fuse rating sar elisted
in the fuse allo cati oncha rt.
The fuse allo cati oncha rtis locate din the vehi-
cle tool kitinthe stow agecomp artment under
the trunk floor (Y page 252 ).
If anew lyins erte dfu se also blow s,ha ve the
cau setraced and recti fiedat aqu alifi ed spe-
cia list wo rksh op,e.g .an author izedMe rced es-
Benz Center.
! Onl
yus efu ses thatha ve been appro ved
for Merced es-Benz vehicles and which have
the corr ectfuse rating forthe system con-
cern ed.Othe rwise, comp onents orsystem s
cou ldbe dama ged.
! Ma
kesure tha tno moi sturecan ente rthe
fu se boxwh en the cove ris op en.
! Wh
enclosing the cove r,ma kesure tha tit
is lying corr ectlyon the fuse box.Moi sture
see ping inor dirt cou ldothe rwise imp airthe
op era tionof the fuses .
The fuses inyour veh icleser vetoclo sedown
fa ulty cir cui ts. Ifafu se blow s,allthe comp o-
nents onthe circui tand theirfunctio nsstop
op era ting . Bef
ore chang ingafus e
X Swi tch offthe engine.
X Swi tch offallel ectri calcons umers. Fu
ses
265Break downass istanc e Z

X
Make surethattheignition isswitched off
(Y page 118).
or
X When usingtheSmartK ey,turn theSmart-
Key toposition 0092inthe ignition lockand
remove it(Y page 118).
X Secure thevehicle against rollingaway
(Y page 134).
All indicator lampsinthe instrumen tcluster
must beoff.
The fuses arelocated invarious fuseboxes:
R Fuse boxinthe engine compartmen ton the
left-hand sideofthe vehicle, whenviewed in
the direction oftravel
R Fuse boxinthe trunk Fuse
boxinthe engine compart ment
i Observe
the"Important safetynotes" sec-
tion (Ypage 265). G
WARNING
When thehood isopen andthewindshield
wipers aresetinmotion, youcan beinjured
by the wiper linkage. Thereisarisk ofinjury.
Always switchoffthe windshield wipersand
the ignition beforeopening thehood. X
Make surethatthewindshield wipersare
turned off.
X Open thehood.
X Use adry cloth toremove anymoisture
from thefuse box.
X To open: openclamps 0044.
X Remove fuseboxcover 0043forwards. X
To close :check whether theseal islying
correct lyin cover 0043.
X Insert cover0043atthe rear ofthe fuse box
into theretainer.
X Fold down cover 0043and close clamps 0044.
X Close thehood. Fuse
boxinthe trunk
i Observe
the"Important safetynotes" sec-
tion (Ypage 265). The
fuse boxislocated inthe trunk behind the
partition covering.
X Open thetrunk lid.
X To open: release cover0043onthe right and
left-hand sideswithaflat object .
X Open cover 0043downwards inthe direction
of the arrow. 266
FusesBr
eakdown assistance

data
isdifferen tfor every vehicle andcan
deviate fromthedata shown here.Youcan
find thedata applicable toyour vehicle on
the vehicle identification plate. Vehicle
identification number(VIN) X
Slide thefron t-passenger seatasfar forward
as possible.
X Fold trim0043upwards.
VIN 0044can beseen.
The VINcanalso befound inthe following
location s:
R on the vehicle identification plate
(Y page 297)
R on the lower edgeofthe windshield
(Y page 298) Engine
number 0043
Emiss ioncontrol infor mation plate,includ-
ing the cert ification ofboth federal and
Californian emissionsstan dards
0044 Engine number (stamped intothe cran k-
case)
0087 VIN (onthe lower edgeofthe windshield) Service
product sand filling capaci-
ties Impor
tantsafet ynotes G
WARN
ING
Serv iceproduct smay bepoisonous andhaz-
ardous tohealth. Thereisarisk ofinjury.
Comply withinstruct ions onthe use, storage
and disposal ofservic eproduct son the
labels ofthe respect iveoriginal container s.
Always storeservic eproduct ssealed intheir
original container s.Always keepservic e
product sout ofthe reach ofchildren . H
Environm
entalnote
Dispose ofservic eproduct sin an envir on-
ment allyrespon siblemann er.
Serv iceproduct sinclude thefollowing:
R Fuels
R Lubrican ts(e.g. engin eoil, tran smission oil)
R Coolant
R Brak efluid
R Windshield washerfluid
R Climate control system refrigerant
Comply withallvalid regulation swith respect
to handling, storing, and disposing ofservic e
fluids.
Componen tsand servic eproduct smust
matc h.You should therefore onlyuseproduct s
that have been testedand approved by
Mercedes -Benz.
Inf ormat ionabout testedand approved prod-
ucts canbeobtained fromanauthoriz ed
Mercedes -BenzCenter oron the Internet at
htt p:// bevo.m ercedes- benz.com.
You canident ifyserv iceproduc tsapprove dby
Merc edes- Benzby the followin ginsc riptions
on the contain er:
R MB- Freigabe (e.g.MB-Freigabe 229.51)
R MB- Appr oval(e.g. MB-Appr oval229.51)
Oth erdesign ationsor rec omme ndations indi-
cat ealevel ofquality oraspecif ication in
acco rdanc ewith anMB Shee tNumber (e.g.
MB 229 .51). They have notnecessarily been
approve dby Merc edes- Benz. 298
Serv
iceproduct sand filling capacitiesTechnical data

Other
identifications, forexample:
R 0W-30
R 5W-30
R 5W-40 Fuel
Importa ntsafety notes G
WARNING
Fuel ishighly flammabl e.Improper handling
of fuel creates arisk offire and explosion.
Avoid fire,open flames, smoking andcreat-
ing sparks underallcircumstances. Switch
off the engine and,ifappli cable, theauxili ary
heating beforerefueling. G
WARNING
Fuels aretoxic andharmful tohealth. There
is arisk ofinjury.
You must avoid fuelscoming intocontact
with skin, eyesandclothes orbeing swal-
lowed.
Do not inhale thefuel vapors. Keepchildren
awa yfrom fuels.
Keep doors andwindows closedduringthe
refueling process.
If you orothers comeintocontactwith fuel,
observe thefollowi ngpoints:
R Immediately rinsethefuel offyour skin
with soap andwater.
R Ifyou getfuel into your eyes, immediately
rinse youreyes throughly withclean
water. Seekmedical attentionimmedi-
ately.
R Seek medical attentionimmediately iffuel
has been swallowed. Donot induce vomit-
ing.
R Immediately changeoutofclothing which
has come intocontactwith fuel. Tank
capacity Model Total
capa-
city SLC
300 18.5
USgal
(70 .0l) Merce
des‑AMGvehic les 15.8
USgal
(60.0 l) Model Of
whic h
reserve SLC
300 Approx.
2.4 USgal
(9.0 l) Merce
des‑AMGvehic les Approx.
2.1 USgal
(8.0 l) Gasol
ine Fuel
grade
! Do
not use dieselto refue lvehicl eswith a
gaso lineengine. Donot switch onthe igni-
tion ifyou accide ntallyrefuelwith thewrong
fuel .Otherwi se,the fuel willenter thefuel
system. Evensmallamou ntsofthe wrong
fuel couldresul tin dama getothe fuel sys-
tem andtheengine. Notifyaqua lified spe-
cial istworkshop andhave thefuel tank and
fuel lines drained comple tely.
! Only
refue lusi ng unlea dedpremi umgrad e
gaso linewith atlea st91 AKI/95 RON.
i E10
fuelcontains upto10% bioethanol.
You rvehicl eis E10-compatibl e.You can
refue lyou rvehicl eusi ng E10 fuel.
! Only
usethefuel recommende d.Opera ting
the vehicl ewith other fuelscan leadto dam-
age tothe fuel system, engineandexhau st
system.
! Do
not use thefollowi ng:
R Ga soli newith more than10%ethanol
R E100 (100% ethanol )
R Ga soli newith methanol
R M100 (100% methano l)
R Ga soli newith metal liferous additive s
R Diese l Servi
ceproducts andfillin gcapac ities
299Tec hnic aldata Z