2020 MERCEDES-BENZ SLC ROADSTER engine

teri
stics, e.g.winter tires.AT IREFIT kitmaybe
ob tained fromaq ualifi ed speci alistw orksh op.
Info rma tiono nchangi ng and mou nting wheels
(Y page 289 ).
X Stop thevehicleo nsolid ,n on-s lipp ery and
le vel ground ,asf ar aw ay aspossi blef rom
tra ffic.
X Swi tch onthe hazar dw arning lamps .
X Secu rethe vehiclea gainst rol ling 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 sw itho ut KEYLES S-G O:rem ove
the Sma rtKeyfromt heigniti onlock.
X Veh icle sw ithK EYLESS -GO: open the driv-
er' sd oor.
The vehiclee lectro nics aren ow inpo sitio n
005A.T hisi st he same asthe Sma rtKeyhaving
be en rem oved.
X Veh icle sw ithK EYLESS -GO: rem ove the
Star t/Stop button fromt heigniti onlock
(Y page 118 ).
X Ma kesure tha tthe passe nge rsaren ot
end angeredastheyd oso.Ma kesure tha t
no one isnea rthe dange rareaw hile a
wh eelisb eing cha nge d.Anyo newhoisn ot
di rectl yassisting inthe wheelcha nge
sho uld, for exa mpl e,sta nd behind the bar-
rie r.
X Ge toutofthe vehicle. Pa ya ttentio ntot raf-
fic cond itions when doing so.
X Close thedriver 'sdo or. MOE
xtende dtires(tires with run-f lat
prope rties)
Ge neral notes Wi
th MOExte ndedtires(tires with runf lat
cha racteri stics) ,you can conti nuetodrive your
veh iclee veni fthe re isat ota llos so fpressu re
in one ormor etires.The affecte dtire mustnot
sho wanyclearly vis ible da ma ge.
Yo uc an reco gnizean MOExte ndedtire bythe
MOExte ndedm arking which appe arso nthe
si de wa llof the tire.You willfin dt hism arking
next tothe tire size designa tion,the load -be ar-
ing capacityand thespee di nd ex
(Y page 284 ). MOExte
ndedtiresm ayonl ybeu sedi nc on-
junc tionw itha na ctive tire pressu reloss wa rn-
ing syste mo rwitha na ctive tire pressu remon-
ito r.
If ap res sure loss wa rning mes sage
appe arsinthe multi function displa y:
R ob serve the instructio nsinthe disp laym es-
sa ge s(Ypa ge202 )
R che ckthe tire fordama ge
R ifdri vin go n,ob serve the followi ng note s
The drivin gd ista nce possi blei nr un-flat mod e
is ap pro xim ately50 miles( 80 kilome ters)
wh en the vehiclei sp artia llyl ad en and appro x-
im ate ly19 miles( 30 kilome ters)whent he
veh iclei sf ully lade n.
In additio nt ot he veh iclel oa d, the drivin gd is-
tance possi bled epends upon:
R Veh icles peed
R Ro ad cond ition
R Ou tside temp erature
The drivin gd ista nce possi blei nr un-flat mod e
ma ybereduce dbyextre medrivin gc ond itions
or ma neu vers,or itcan beincr easedt hro ugha
mod eratesty leof dri vin g.
The drivin gd ista nce possi blei nr un-flat mod e
is cou nted fromt hemom entthetire pressu re
lo ss wa rning appe arsi nt he mu ltifu nctio ndis-
pl ay .
Yo um ustn ot exce edam axim um design
sp ee do f50m ph(80 km/h ).
Wh enrep lacing oneorallt ire s,plea se observe
the followi ng speci ficati ons foryour veh icle's
tire s:
R Size
R Type and
R Th e" MO Exte nded"ma rking
If at ire hasg onef lata nd cann otbe rep laced
wi th an MOExte ndedtire,as tanda rdtire may
be used asatemp orarymea sure. Makesure
tha tyou uset he pro pers izea nd type(summ er
or winter tire).
Veh icles equipp ed with MOExte ndedtiresa re
not equipp ed with aT IREFIT kitatthe factory .
It is the refore recomm endedtha tyou additio n-
al ly eq uipy ourv ehiclew ithaT IREFIT kitifyo u
mou nttire sthatd on otfea turerun-flat cha rac-
teri stics, e.g.winter tires.AT IREFIT kitcan be
ob tained fromaq ualifi ed speci alistw orksh op,
for exa mpl e. 25
4 Fl
at tireBreak downassistanc e

If
the indicator/wa rninglampsdon otlight up
at low temperature s,itis very likely thatthe
discha rgedbattery hasfrozen. Inthis case,
you may neither chargethebattery norjump-
start thevehicle .The service lifeofat hawed -
out battery maybeshorter. Thestarting char-
acteristics canbeimpa ired, particul arlyatlow
temperature s.Have thethawed -outbattery
checked ataq ualifie dspecia 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 261). Replaci
ngthe 12Vb attery
Observe thenotes onthe 12Vb attery
(Y page 258).
Mercedes-Benz recommendsthatyouhave
the 12Vb attery replacedataq ualifie dspe-
ciali stworkshop, e.g.atan authori zed
Mercedes-Benz Center. If
you want torepla cethe battery yourself,
observe thefollow ingnotes:
R Alway srepla cead efective 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 ofap ositive terminal andaground point. G
WARNING
Battery acidiscaustic. Thereisar isk ofinjury.
Avoid contact withskin, eyesorclothing. Donot inhal eanybattery gases.Don otlea no ver the
battery. Keepchildre nawayfrom 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 leano ver abattery. G
WARNING
During thecharging process,abattery produceshydro gengas. Ifas hort circuit occurs or
sparks arecreated, thehydro gengascan ignite. Thereisar isk ofan explosi on. Jump-st
arting
261Breakd owna ssis tance
Z

R
Make surethatthepositive terminal ofac onn ected battery doesnotcome intocontactwith
vehicle parts.
R Never placemetal object sortools 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
Ad ischarged batterycanfreeze attemperatures belowfreezing point.Whenjump-st artingthe
vehicle orcharging thebattery, gasescanescape fromthebattery. Thereisar isk 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 .Int his case, youmay neither chargethebattery norjump-st artthe
vehicle. Theservice lifeofat hawed-out batterymaybeshorter. Thestartin gcharacterist icscan
be impaired, particularly atlow temperatures. Havethethawed-out batterycheckedataq uali-
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 witha12V voltage 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 pulleyorthe 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). 262
Jump
-startingBr eakdown assistance

Trans
portingthe vehic le
Veh icle sw itha uto matic transmission !
Wh
enthe vehiclei sloa ded fortransp ort,
the frontand rearaxles mu stbe stationar y
and onthe same transp orta tionv ehicle.
Po sitio ning overthe conne ctionpoint ofthe
tra nsp ortveh iclei sn otpermi tted .The drive
tra inma yothe rwiseb ed amaged .
Al lv eh icle s !
Yo
um ayonl ysecuret he veh icleb ythe
wh eels,n ot by parts ofthe vehicles ucha s
axl eo rstee ringc omp onents. Othe rwise, the
veh iclec ouldbe dama ged.
The towingeyec an be used topullthe vehicle
onto atrailer or tra nsp orte rfor tra nsp orting
pu rpo ses .
X Tu rn the Sma rtKeytop ositio n 0048 inthe igni-
tio nlock.
X Shi ftthe transmi ssion topositio n005C.
As soon asthe vehic lehas been loade d:
X Pre vent thevehiclef romr olling away by
ap plying the electri cparkin gb rake.
X Shi ftthe transmi ssion topositio n005D.
X Tu rn the Sma rtKeytop ositio n 0092 inthe igni-
tio nlocka nd rem ove theSma rtKeyfromt he
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 .You cou ldothe rwise
da ma gethe automa tictransmi ssion. Yo
uc an find informa tiono n"Jump -star ting "at
( Ypa ge261 ). Fu
ses Impo
rtant safety notes G
WA
RNING
If yo um anipulate orbridgeaf aulty fuse orif
yo ur eplace itwi th afusew ithah ighe r
am perage ,the electri ccablesc ouldbe ove r-
lo ad ed .Thisc ouldres ulti na fire. The reisa
ris ko fana ccident and injury.
Alw aysr eplace faulty fuses with the speci -
fie dn ew fuses havin gthe corr ectamperage .
Blo wn fuses mustbe rep laced with fuses of
the same rating ,which youc an reco gnizeby
the colorand value. The fuse rating sarelisted
in the fuse allo cati oncha rt.
The fuse allo cati oncha rtis locate dint he veh i-
cle tool kitinthe stow agec omp artment under
the trunk floor (Y page 253 ).
If an ewlyins erte dfusea lsob lows ,havet he
cau setraced and recti fieda taq ualifi ed spe-
cia list wo rksh op,e.g.a na uthor izedM erced es-
Benz Center.
! Onl
yusefuses thathaveb eena pproved
for Merced es-Benz vehicles and which have
the corr ectfuse rating forthe system con-
cern ed.O the rwise, comp onents orsystem s
cou ldbe dama ged.
! Ma
kesure tha tnom oistu recan ente rthe
fu se boxw hent he cove riso pen.
! Wh
enclosing the cove r,ma kesure tha tit
is lying corr ectlyonthe fuse box.Moi sture
see ping inor dirt cou ldothe rwisei mp airt he
op era tiono fthe fuses .
The fuses inyour veh icles erve toclo sedown
fa ulty cir cui ts. Ifaf useb lows ,allthe comp o-
nents onthe circui tand the irfunctio nsstop
op era ting . Bef
ore chang ingaf use
X Swi tch offthe engine.
X Swi tch offalle lectri cal cons umers. 26
6 Fu
sesBreak downassistanc e

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 tonthe
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 266). G
WARNING
When thehood isopen andthewindshield
wipers aresetinmotion, youcan beinjured
by the wiper linkage. Thereisar isk ofinjury.
Always switchoffthe windshield wipersand
the ignition beforeopening thehood. X
Make surethatthewindshield wipersare
turned off.
X Open thehood.
X Use adrycloth 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 266). 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. Fuses
267Breakdown assistance Z

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 298)
R on the lower edgeofthe windshield
(Y page 299) Engine
number 0043
Emiss ioncontrol infor mation plate,includ-
ing the cert ification ofboth federal and
Californian emissionsstan dards
0044 Engine number (stamped intot he cran k-
case)
0087 VIN (onthe lower edgeofthe windshield) Service
product sand filling capaci-
ties Impor
tantsafet ynotes G
WARN
ING
Serv iceproduct smaybe poisonous andhaz-
ardous tohealth. Thereisar isk ofinjury.
Comply withinstruct ions onthe use, storage
and disposal ofservic eproduct sonthe
labels ofthe respect iveoriginal container s.
Always storeservic eproduct ssealed intheir
original container s.Always keepservic e
product soutofthe reach ofchildren . H
Environm
entalnote
Dispose ofservic eproduct sina ne nvir 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 swithrespect
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- Benzbythe 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 ationsorrec omme ndations indi-
cat eal evel ofquality oras pecif ication in
acco rdanc ewithanMB Shee tNumber (e.g.
MB 229 .51). They have notnecessarily been
approve dbyM ercedes- Benz. Serv
iceproduct sand filling capacities
299Technical data Z

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 ar isk 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‑AM Gvehic les 15.8
USgal
(60.0 l) Model Of
whic h
reserve SLC
300 Approx.
2.4 USgal
(9.0 l) Merce
des‑AM Gvehic 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 the wrong
fuel .Otherwi se,the fuel willenter thefuel
system. Evensmallamou ntsofthe wrong
fuel couldresul tind ama getothe fuel sys-
tem andtheengine. Notifyaqualified spe-
cial istworkshop andhave thefuel tank and
fuel lines drained comple tely.
! Only
refue lusing premi um-gra deunlea ded
gaso linewith atlea st95 RON thatconforms
to Europe anstandard EN228 oran equ iva-
lent specifi cation.
Fuel ofthis specifi cation cancontain upto
10% ethanol .Yourv ehicl eisE 10-compati-
ble. You canrefue lyou rv ehicl eusing E10
fuel .
Fuel thatdoes notconform toEN 228 can
lea dtoincrease dweara sw ella sd ama geto
the fuel system, engineandexhau stsystem.
! Only
usethefuel recommende d.Opera ting
the vehicl ewithother fuelscan leadtod am-
age tothe fuel system, engineandexhau st
system.
Observe thenotes onopera tingfluids. 300
Servic
eproducts andfilling capaci tiesTechn ical data

!
Never
refuelusing:
R Diesel
R Regu largasoli newith anoctane number
lower than91RON
R Gasol inewith more than10vol. %etha-
nol, e.g. E15, E20, E85,E100
R Gasol inewith more than3vol. %m etha-
nol, e.g. M15, M30
R Gasol inewith metalliferou sadditives
If you accidentally refuelwiththewrong
fuel:
R Do not switch theignition on
R Consult aqualified speciali stworkshop.
Do not mix such fuels withthefuel recommen-
ded foryour vehicle.
In accordance withEuropean standardEN
16942, youcan find thefollowi ngcompatibili ty
label sfor fuel:
R on the instruction labelonthe fuel filler flap
of your vehicle
R on the fuel pump orpump nozzlefor your
vehicle, throughout Europe 0043
For gasoli newith amaximum ethanolcon-
tent of5%b yvolume
0044 For gasoli newith amaximum ethanolcon-
tent of10 %b yvolume
! Damage
tothe emission controlsystem
caused byfuel with excessive sulfurcontent
R Only usesulfur-free fuel(sulfu rcont ent ≤
10 ppm ). i
In
some countries, theavail able gasoli ne
may notbesufficiently lowinsulfur. This
fuel cantemporarily produceunpleasa nt
odors, especial lyon short journeys. Assoon
as sulfur-free fuel(sulfu rcont ent <10p pm)
is used forrefueling, theodors arereduced.
i The
fuels youcan useinyour vehicle may
differ fromtheinformation inthe Operator's
Manual depending onthe country. Thefuels
that have been approved foryour vehicle
can befound onthe instruction labelonthe
inside ofthe fuel filler flap.
E4 00 4MATIC: observetheinformation on
sulfur contentonthe instruction labelonthe
fuel filler flap.
All models: therecommended octanenumber
for your vehicle canbefound onthe instruc-
tion label onthe fuel filler flap.
E3 00, E350, E350 4MATIC: onlyrefuel
using super unleade dgasoli newith atleast
98 RON, ifyou wish toachieve maximum
engine output. Alternatively, youcan also
refuel usingpremium gradegasolinewith at
least 95RON.
All models: asatemporary measure,ifthe
recommended fuelisnot avail able, youmay
also useunleade dregula rgasoli newith at
least:
R E1 80, E250, E300 e:93 RON
R All other models: 91RON
Additives ingasolin e
! Operating
theengine withfueladditives
added latercanlead toengine failure.Do
not mix fuel additives withfuel. Thisdoes
not include additives forthe removal and
prevention ofresidue buildup. gasoli nemust
only bemixed withadditives recommended
by Mercedes-Benz .Comply withtheinstruc-
tions foruse onthe product label.More Service
productsand fillingcapacities
301Technicaldat a Z