2020 MERCEDES-BENZ SLC ROADSTER Owner's Manual

X
Swi tch offalle lectri cal consu mers,e.g. rea rwindow defroste r,lighti ng,etc.
X Ope nthe hoo d. Pos
ition numb er0084 identif iest he cha rgedbattery ofthe othe rvehicleo rane quiva lent jump -
star ting device.
X Sli de cove r0043 ofpos itive termi nal0044inthe directi onofthe arrow .
X Co nnect positive termi nal0044onyour veh iclet op ositive termi nal0087ofdono rbattery 0084using
the jump ercab le,a lway sb egin with pos itive termi nal0044onyour ow nv ehiclef irst.
X Start theengi neofthe dono rvehiclea nd run itat idling spe ed.
X Co nnect negativetermi nal0085ofdono rbattery 0084togro und point0083 ofyour veh icleu sing the
jump ercab le,b eginni ngwith dono rbattery 0084first.
X Start theengi ne.
X Befo redisconne ctingthejump ercab les, lett he engi nerun forseve ralminu tes.
X Firs t,remo vethe jump ercab lesf rom ground point0083 and nega tivetermi nal0085,t henfrom
pos itive termi nal0044and positive termi nal0087.B egine acht ime atthe contac tson your ow n
veh iclef irst.
X Close cove r0043 ofpos itive termi nal0044afte rremo ving thejump ercab les.
X Have thebattery checke dataq ualifi ed spe cialist wo rksho p.
Ju mp-sta rtingisnot consi deredtobe anorma lope rati ngcondi tion.
i Ju
mpe rcablesa nd further informa tion regard ing jump -startingcanbeobta ineda tany quali-
fie ds pecia list wo rksho p. Jump-startin
g
263Breakdo wnassistanc e Z

Tow
inga nd tow -starti ng Impo
rtant safety notes G
WA
RNING
Wh entow ingortow -sta rtinganothe rvehicle
and itsweight isgre atertha nt he permi ssi-
bl eg ross we ight ofyour veh icle, the :
R the towingeyec ouldde tach itself
R the vehicle/tra iler comb inationc ouldrol l-
ove r.
The reisar isko fana ccident.
Wh entow ingortow -sta rtinganothe rvehi-
cle ,its we ight sho uldn otbe gre atertha n
the permi ssibleg ross we ight ofyour veh icle.
Deta ilso nthe permi ssibleg ross veh iclew eigh t
of your veh iclec an be fou ndonthe vehicle
id enti ficati on plate (Ypage 298 ).
! Wh
enActiv eBrake Assi st,Activ eDistance
Assi stDISTR ONICorthe HOLD functio nis
acti vated ,the veh icleb rakes automa tically
in certa insitua tions.
To avoidd amaget ot he veh icle, de acti vate
the sesystem sint he followi ng orsimil arsit-
ua tio ns:
R wh en tow ingthe vehicle
R in the carwash
! Onl
ysecuret he tow ropeortow bara tthe
tow ingeyes. Othe rwise, the vehiclec ouldbe
da ma ged.
! Do
not uset he tow ingeyef or reco very,
thi sc ouldda ma gethe vehicle. Ifin do ubt,
reco verthe vehiclew ithac rane.
! Wh
entow ing,pulla wa yslowly and
smo othly.Ifthe tractiv epoweristoo high,
the vehicles cou ldbe dama ged.
! Do
not tow with sling -typ eequipm ent.This
cou ldda ma gethe vehicle.
! Wh
entow ingaway veh icles with KEYL ESS-
GO ,use the key instea dofthe Star t/Stop
bu tton. Theautoma tictransmi ssion may
othe rwises hift to positio n005D when you
op en the driver 'sor fro nt-pa ssenge rdoor,
wh ich cou ldda ma gethe transmi ssion. !
Ma
kesure tha tthe electri cparkin gb rake
is rel eased .Ift he electri cparkin gb rake is
fa ulty, visitaq ualifi ed speci alistw orksh op.
! Yo
um aytow thevehiclef or am axim um
di sta nce of30 miles(50 kilome ters).At ow -
ing spee do f30m ph(50 km/h )mustn ot be
exce eded.
For towingdista nces over30m iles
(50 kilome ters),the entireveh iclem ustb e
ra ised and transp orte d.
! Wh
enyoua retow -sta rtingortow ing
ano thervehicle, its weight mu stnot exce ed
the maxim um permi ssibleg ross we ight of
yo ur veh icle.
It is be tter tohave the vehiclet ransp orte d
tha ntoh avei ttow ed away.
The automa tictransmi ssion mu stbe inpo si-
tio n005C when the vehiclei sb eing tow edaway.
The battery mustbe conne ctedandcharged.
Othe rwise, you:
R canno tturnt he Sma rtKeytop ositio n 0048 in
the igniti onlock
R canno tshift the automa tictransmi ssion to
po sitio n005C
Dea ctivate the automa ticlocking feature
be for ethe veh iclei st ow ed (Ypage 179 ).Yo u
cou ldothe rwiseb eloc ked outw henp ushing
or tow ingthe vehicle. In
stal ling /re mov ingt he tow inge ye
In stal ling the towinge ye G
WA
RNING
The exhaust tai lpipem aybe veryhot. The re
is ar isko fburns when rem oving the rear
cove r.
Do not touchthe exhaust pipe .Takep artic u-
la rc arew henr em oving the rearcove r. 26
4 Tow
inga nd tow -starti ngBreak downassistanc e

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 253).
X Press themark oncover 0043inwards inthe
direction ofthe arrow.
X Take cover 0043offthe opening.
X Scr ew inthe towing eyeclock wiseasfar as
it will goand tighten it.
Removing thetowing eye X
Unsc rewand remove thetowing eye.
X Attach cover 0043tothe bumper andpress
until 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 isar isk 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 99).
X Turn theSmart Keytoposition 0048inthe igni-
tion lock.
On vehicles withKEYLE SS-GO, usethe
Smart Keyinstead ofthe Start /Stopbutton
(Y page 118).
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 264). Permit
tedtowing methods
Mercedes- Benzrecomm endstransportin gyour
vehicle inthe case ofab reakdown, ratherthan
towing itaway .
When towing away,use atowing 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. Intervent ionbyESP ®
could other-
wise damage thebrake system.
! Vehicles
withautomatic transmission must
not betowed withtherear axle raised. The
vehicle/t railercombinat ionmay otherwise
swerve oreven rollover. Towing
andtow-sta rting
265Breakdown assistance Z

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

Imp
ortant safety notes G
WAR
NING
If you installw hee lsand tires withincorr ect
dime nsion s,thes ervic eb rak eorwhee lsus-
pen sion compo nentsm aybe damag ed.
Ther eisar isko fana cciden t.
Alw ays replace whee lsand tires witho nes
th at comply withthe spec ificationso fthe
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
Af lat tire will severelyaff ectthe driv ing
ch arac teris tics as well asthes teer ing and
brak ingofthev ehicle. Ther eisar isko fan
acc iden t.
Tir es wit hout run-flat charac teris tics :
R Do notd riveo nw ithaf lattire.
R Chan gethef lat tire imm ediat elywitha n
eme rgencys par ew hee lors par ew hee l.
Alt ern ativel y,co nsult aqualif iedspec ialist
wor kshop.
Tir es wit hrun-flat charac teris tics :
R Obs ervethe inform ation and warn ing
no teso nM OExten ded tires (run -flat tires ).
Ac cesso ries that are nota ppr ove dfor your
veh icleb yM erce des- Benzorare notb ein g
used correc tlyc an impa irth eo per ating safety.
Bef ore purc hasingand usingnon-ap prove d
acc essories, visitaq ualif iedspec ialist work-
sho pand ask about :
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 dunder "Whee l/tire combin ations"
(Y page 293). You
canaskforinform ation reg ardi ngper mit-
te dw hee l/tire combin ationsa tana uth orized
Mer cedes- BenzCenter.
In for mat ionontire pre ssur ecan be foun d:
R on theT irea nd Load ingInfor mat ionplac ard
on theB -pillar onthed river' ss ide
(Y page 280)
R in thet irep ressur etablein thef uel filler flap
(Y page 133)
R in the" Tirep ressur e"sec tion Op
era tion Infor
mation ondrivin g
Chec kthe tire pre ssur ewhen thev ehiclei s
heav ilyladen andadjust prio rtoat rip.
While driving,pay attention tovibr ations,
no ises andunus ualhan dlingcharac teris tics ,
e. g. pullin gtoo neside .This may indicat ethat
th ew hee lsor tires are damag ed.Ifyou sus-
pec ttha tat irei sd efec tive, reduce your speed
imm ediat ely.Stop thev ehiclea ssoona spos-
sible tocheckt he whee lsand tires fordam-
age. Hidden tire damag ecouldalso becaus ing
th eu nus ual han dlingcharac teris tics .Ify ou
fin dn osign sofdamag e,hav ethe tires and
whee lsch ecke da taq ualifiedspec ialist work-
sho p.
When parkingyour vehicle, mak esuret hatthe
ti res donotg et def orm edbythec urbo rother
obs tacles. Ifth ey can notb ea voided, drive
ove robstac les suc hascurbs slow lyand atan
obt use angle.Other wise, youmay damag ethe
whee lsor tires . Reg
ularcheck ingofwheels andtires G
WAR
NING
Dam aged tires can caus etirei nflat ion pres-
sur eloss .Asar esult ,you could lose control
of your vehicle. Ther eisar isko facciden t.
Chec kthe tires regularly forsign sofdam-
age and replace anydamag edtires imm edi-
ate ly. 268
Op
era tionWh eels andtire s

Chec
kwheel sand tires for damag eatleast
on ce am onth.C hec kwheel sand tires after
driv ingoff-road oron roug hroad s.Dam aged
wheel scan caus ealossoftirep ressur e.Pay
part icular attentio nt od amag esucha s:
R cut sint he tires
R punc tures inthet ires
R tears inthet ires
R bulges ontires
R def orm ationorsevere corrosio nonw heel s
Regular lych eck thet iret read dept hand the
co ndi tiono fthe tread across thew hole width
of all tires (Y page 269). Ifne ces sary, turnthe
fr on tw heel stof ull loc kino rder to ins pec tthe
inn erside ofthet ires urface.
All wheel smust have avalvec ap topro tect
th ev alvea gain stdirt and mois ture.Do not
moun tanyt hingo ntot he valv eother than the
st and ard valvecap orother valvecaps
appro vedbyMer cedes-Ben zfor your vehicle.
Do notu se any other valvecaps orsyst ems ,
e.g .tirep ressur emonito rin gs yst ems .
Regular lych eck thep ressur eofallth et ires
part icular lyprio rtol on gt rips. Adjus tthe tire
pre ssur easnecessary (Ypage 271).
Obse rvet he noteso nthe eme rgencys par e
wheel (Ypage 294).
The servicelife oftires depen ds,amon gother
th ing s,on thef ollowin gfactors:
R Dr ivin gstyle
R Tire pressur e
R Dis tan cecover ed Not
eson tiret read G
WAR
NING
If th ere isins ufficie nttiret read, thet iret rac-
tio nd ecreas es.The tiret read isno longer
able todiss ipatewater.This increas esthe
ris ko fhydr oplan ingwhen ther oad surface
is wet ,part icular lywhen thev ehicle 'sspee d
is no ta dapt edtother oad condi tions.T her e
is ar isko fana cciden t.
When thet irep ressur eist oo high ortoo
low, tires may wear differe ntly at diff ere nt
poin tson thet iret read. Ther efore, regularly
ch eck thet iret read dept hand thec onditio n of
thet read acr oss thew hole widthofall
tir es.
Min imum tiret read dept hon:
R Sum mer tires: 00CEin(3 mm)
R M+S tires: 00CFin(4 mm)
For safe tyreas ons,have thet ires rep lace d
bef ore they reac hthe legally prescribe dmin-
imum tiret read dept h. Mark
ing0043sho wswher ethe bar indicat orfor
tr ead wear (arrow) isint egr atedintot he tire
tr ead.
Tre adwear indicat ors (TWI )are req uired by
law. Sixindicat ors are posi tionedo nthe tire
tr ead. They arevisible once atread dept hof
appr oximat ely00CD in(1.6 mm)has been
re ach ed. Ifth is isthec ase, thet irei ss ow orn
th at itmust berepl aced . Select
ing,mou nting and replacing
tir es
Tire sand wheels
R On lymoun ttires and wheels ofthes ame
type andmake.
Ex cep tion:itis perm issibleto moun tadif-
fer ent type ormak eint he even tofaf lat
tir e. Obse rvet he "MOE xtend edtires (tires
with run-flat charac terist ics)"sec tion
(Y page 254).
R On lymoun ttires ofthec orrec tsizeo ntot he
wheels .
R Break innew tires atmode rates pee dsfor
th ef irst 60 miles (100km). The new tires
on lyreac htheirfull perf ormanceafter this
dist ance. Oper
ation
269Wheels andtires Z

R
Do not drive with tire sw hich have too little
trea ddepth.T hiss igni fic antl yreduce sthe
tra ctio nonw etroa ds(hyd rop laning ).
R Re place thetiresafter sixy ears at the lat-
est, regardless ofwe ar. MOE
xtende dtires(tires with run-f lat
prope rties)
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.
MOExte ndedtiresm ayonl ybeu sedi nc on-
juncti onwith an acti vetire pressu reloss wa rn-
ing system orwith an acti vetire pressu remon-
ito ra nd onwheelssp eci fically teste dby
Me rced es-Benz.
Note sond rivin gw ithM OExte ndedtiresw itha
fla ttire (Ypage 254 ).
Veh icles equipp ed with MOExte ndedtiresa re
not equipp ed with aT IREFIT kitatthe factory .
It is the refore reco mme ndedthaty ou 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. Win
terope ratio n Ge
neral notes
Hav eyourv ehiclew inter-p roofed ataq ualifi ed
sp eci alistw orksh opatthe onse tofw inter.
Ob ser vethe note sint he "Cha ngi ng aw heel"
sec tion(Ypa ge 289 ). Dri
ving with summe rtire s
At temp eratures below4 5‡ (+7†),sum mer
tire slos ee last ici ty and therefore tractio nand
bra king powe r.Ch ang ethe tire sonyourv ehi-
cle toM+S tires.Us ings umme rtires atvery
cold tempera turescould cause cracks toform,
thereby damagingthetires perma nently.
Mercede s-Benzcannot acceptresponsi bility
for this type ofdama ge. G
WARNING
Damage dtires cancause tireinflati onpres-
sure loss. Asaresul t,you could losecontrol
of you rvehicl e.There isar isk ofaccide nt.
Check thetires regularlyforsigns ofdam-
age and repla ceany dama gedtires immedi -
ately . M+S
tires G
WARNING
M+S tireswithatire tread depth ofless than
00CF in(4 mm) arenot suitable foruse inwin-
ter and donot provid esuffici enttraction.
There isar isk ofan accide nt.
M+S tireswithatread depth ofless than 00CF
in (4 mm) must berepla cedimmedi ately.
At temperatu resbelo w45‡ (+7†), use win-
ter tires orall-season tires.Bothtypes oftire
are identifi edbythe M+S marking.
Only winter tiresbearing the004D snowfla ke
symbo lina ddition tothe M+S marking provide
the best possi blegrip inwintry roadcondi-
tions.
Only these tireswillallow drivi ngsafety sys-
tems suchasABS andESP®
to function opti-
mall yinw inter. These tireshave been devel-
oped specifi callyfor drivi nginsnow.
Use M+S tiresofthe same make andtread on
all whee lsto maintai nsafe handl ingcharacter-
istics.
Alwa ysobserve themaximu mpermis sible
speed specifiedfor the M+S tiresyouhave
mounted.
When youhave mounted theM+S tires:
X Check thetire pressu res(Ypage 274).
X Vehic lesforCanada: restartthetire pres-
sure losswarni ngsystem (Ypage 275).
X Resta rtthe tire pressu remonitor
(Y page 275).
Information aboutdrivi ng with anemergency
spare wheel(Y page 294). 270
Winter
operationWheelsand tires