2020 MERCEDES-BENZ SLC ROADSTER key

G
WARNING
After ashort time, hillstart assistwil lnol on-
ger brake yourvehicl eand itcoul droll awa y.
There isar isk ofan accide ntand injury .
There fore,quickly move yourfoot from the
brake pedaltot he accele ratorpedal.Never
lea vethe vehicl ewhen itis held byhillstart
assi st.
Hill start assistisnot active if:
R you arepulling awayonal evelroad oron a
dow nhill gradient
R the transmissi onisin posi tion 005C
R the electric parkingbrake isapp lied
R ESP ®
is malfu nctioning EC
Os tart/stop function
Introduc tion The
ECO start/stop functionswitches the
engine offautomatical lyifthe vehicl eiss top-
ped under certain conditions.
The engine startsautomatica llywhen the
drive rwants topul lawa ya gain. The ECO
start/stop functiontherebyhelpsyou to
redu cethe fuel consumpti onand emiss ionsof
you rvehicl e.
Important safetynotes G
WARNING
If the engine isswi tched offautomatica lly
and youexit thevehicl e,the engine is
restarted automatical ly.T he vehicl emay
begi nmoving. Thereisar isk ofaccide ntand
injury .
If you wishtoe xitthe vehicl e,alw ayst urn
off the ignitio nand secure thevehicl e
aga inst rolling awa y. Gene
ralnote s 0043
ECO start/stop display
The ECO start/stop functionisactiva ted
whene veryou switch onthe engine using the
SmartKey orthe Start/Stop button.
If the engine hasbeen switched offautomati-
call ybythe ECO start/stop function,the00D6
ECO symb olisshow nint he multi function dis-
pla y.
Automatic engineswitch-off If
the vehicl eisb raked toas tandstil lwith the
transmissi onin005B or005C,t heECO start/stop
function switches offthe engine automatical ly.
The ECO start/stop functionisopera tional
when:
R the indica torlamp inthe ECO button islit
green
R the outsi detempera tureiswithi nthe range
that issui table forthe system
R the engine isat normal operatingtempera -
ture
R the settempera tureforthe vehicl einterior
has been reache d
R the battery issuffi ciently charged
R the system detects thatthewinds hieldis
not fogged upwhen theair-condi tioningsys-
tem isswi tched on
R the hood isclosed
R the drive r'sdoor isclosed andthedrive r's
seat beltisf astened
All ofthe vehicl e'ssystems remainactive
when theengine isstoppe dautomatical ly.
Automatic engineswitch-off cantake placea
maximu moffour times inar ow (initi alstop,
then three subsequ entstops).
The HOLD function canbeactiva tedifthe
engine hasbeen switched offautomatical ly.I t
is then notnecessa ryto continue applying the
brakes duringthe automatic stopphase.When
you depre ssthe accele ratorpedal,the engine Drivi
ng
121Drivi ngand parking Z

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
coolant tempera-
ture display showsa
value above 248‡
(120 †).The coolant
warning lampmayalso
be on and awarning
tone maysound. The
coolant levelistoo low. Thecoolant istoo hotand theengine is
no longer beingcooled sufficiently.
X Stop assoon aspossible andallow theengine andthecoolant to
cool down.
X Check thecoolant level(Ypage 243). Observe thewarning notes
as you dosoand add coolant ifnecessary. If
the coolant leveliscorrect ,the engine radiator fanmay befaulty.
The coolant istoo hotand theengine isno longer beingcooled suf-
ficiently.
X At coolant temperatures below248‡(120 †),drive tothe near-
est quali fiedspecialist workshop.
X Avoid heavy loadsonthe engine asyou doso, e.g. driving in
mountainous terrainandstop-and- gotraffic. Notes
ontowing vehicles
The vehicle isnot suitable forattaching tow
bar systems, suchasthose usedforflat tow-
ing ordinghy towing.
Att aching orusing towbarsystems mayresult
in damage tothe vehicle.
When towing avehicle withtowbarsystems,
safe driving characterist icscannot beguaran-
teed forthe towing vehicle orthe towed vehi-
cle.
The vehicle/vehicle combinationmayswerve.
Observe thepermissible towingmethods
(Y page 265)andthenotes ontowing with
both axles onthe ground (Ypage 265). DYNAMIC
SELECTbutton
Use theDYNAMIC SELECTbutton tochange
the drive program. Depending onthe drive pro-
gram selected thefollowing vehiclecharacter-
istics willchange:
R the drive (engine andtransmission manage-
ment)
R the suspension orthe adaptive adjustable
damping onlyonvehicles withAMG RIDE
CONTROL sportssuspension
R the sound ofthe exhaust system(vehicles
with sports exhaust system)
R the steering
R the availa bilityofthe ECO start/ stopfunc-
tion Each
timeyoustart theengine withtheSmart-
Key orthe Start /Stopbutton, driveprogram C
is activated. Forfurther information about
startin gthe engine, see(Ypage 119). X
Press DYNAMIC SELECTbutton 0043asmany
times asnecessary untilthedesired drive
program isselected.
The selected driveprogram appearsinthe
multifunct iondisplay .After as hort period of
time, thedisplay goesoutand thesymbol
for the selected driveprogram appears.
In addition, thecurrent driveprogram set-
tings aredisplay edbriefly inthe multimedia
system display.
i In
af ew countr ies,theECO start/ stop
funct ionisdeactivated atthe factory dueto
the availa blefuel grade. Inthis case, the
ECO start/ stopfunct ionisnot availa blein
any drive program, regardless ofthe display
in the multimedia systemdisplay.
In city traffic andstop-st arttraffic, drivepro-
gram Cis recommen ded. 124
DY
NAMIC SELECTbutt onDriving andparking

Merce
des-AMGSLC 43 0043
Transmi ssionposition
0044 Drive progra m
The current transmissi onposi tion anddrive
progra mappear inthe multi function display.
Eng aging parkpositi onP X
When thevehicl eiss tationa ry,depre ssthe
brake pedal.
X Press button 0043.
Eng aging parkpositi onPautomati-
call y Park
position 005Disau tomatical lyengag edif:
R you switch offthe engine using the Smart-
Key and remove theSmartKey
R you switch offthe engine using the Smart-
Key orusi ng the Start/Stop buttonand
open thedrive r'sdoor orfront-passenge r
door
R you open thedrive r'sdoor when thevehicl e
is stationa ryor when drivingatav ery low
spee dand the transmissi onisin posi tion 005B
or 005E
Under certain conditions, theautomatic trans-
missi onshifts automatical lyto transmissi on
posi tion 005Difthe HOLD function orActive Dis-
tance Assist DISTRONIC isactiva ted.Observe
the informati onon the HOLD function (Y
pag e152) and onActive Distance Assist
DISTRONIC (Ypag e148).
Eng aging reverse gearR !
Only
move theautomatic transmissi onto
005E when thevehicl eiss tationa ry.
X Depress thebrake andkeep itpresse d.
X Push thesele ctor lever forwa rdspast the
first point ofresis tance.
The ECO start/stop functionisnot available
when reverse gearise ngag ed.Further infor-
mation onthe ECO start/stop function
(Y pag e121) .
Shiftin gton eutral N G
WARNING
If child renareleft unsu pervi sedinthe vehi-
cle, they could:
R opera tethe vehicl e'sequ ipme nt
Additio nally,child rencoul dsetthe vehicl ein
motion if,for exampl e,they:
R relea sethe parking brake
R shift theautomatic transmissi onout of
park position 005D
R start theengine
There isar isk ofan accide ntand injury .
Never leavechild renoranima lsunattended
in the vehicl e.
When leaving thevehicl e,alw ayst ake the
SmartKey withyouand lock thevehicl e.This
als oa ppliesf or the Digita lVehicl eKeyifthe
"Digi talVehicl eKey" function isactiva tedvia
Mercede smeconnect.
X When thevehicl eiss tationa ry,depre ssthe
brake pedal.
X Push thesele ctor lever forwa rdsorback to
the first point ofresis tance.
If you switch the engine offwith thetransmis-
sion inposi tion 005Eor005B,t heautomatic trans-
missi onshifts to005C automatical ly.
With theSmartKey: ifyou then open thedriv-
er's door orthe front-passenge rdoor or
remove theSmartKey fromtheignitio n,the
au tomatic transmissi onshifts to005D automati-
call y. 126
Automatic
transmissio nDrivingand parking

With
KEYLESS-GO :if you then open thedriv-
er's orfront-passenge rdoor, theautomatic
transmissi onshifts to005D automatical ly.
If you want theautomatic transmissi onto
remai ninn eutral 005C,e.g.when havingthe
vehicl ecleaned inan automatic carwas hwith
at owing system:
X Vehic leswith KEYLESS-GO :remove the
Start/Stop buttonfromtheignitio nlock.
X Insert theSmartKey intotheignitio nlock.
X All vehi cles:swi tch the ignitio non.
X Depress thebrake pedaland keep it
depre ssed.
X Shift toneutral 005C.
X Rel ease thebrake pedal.
X Rel ease theelectric parkingbrake.
X Switch offthe ignitio nand leavethe Smart-
Key inthe ignitio nlock.
Eng agin gdrive position D X
When thevehicl eiss tationa ry,depre ssthe
brake pedal.
X Push thesele ctor leverback past thefirst
point ofresis tance. Transmissio
npositi ons 0045 Park
positi on
This prevents thevehicl efrom roll-
ing awa ywhen stoppe d.
Only shiftthetransmissi oninto
posi tion 0045 (Ypag e125) when
the vehicl eiss tationa ry.The park-
ing lock shou ldnot beused asa
brake whenparking.Alwa ysapp ly
the electronic parkingbrake inadd i-
tion tothe parki nglock inorder to
secure thevehicl e.
If the SmartKey isremoved fromthe
ignitio nlock, thetransmissi onis
locked.
The automatic transmissi onshifts
to 0045 automatical ly:
R when theSmartKey isremoved
from theignitio nlock
R when theengine isswi tched off
with thetransmissi oninposi tion
0046 or003A andone ofthe
doors isopened
In the event ofam alfunction ofthe
vehicl e'selectronics, thetransmis-
sion may lockinposi tion 0045.
Have thevehicl eelectronics
checked immediatelyataq ualified
speci alist worksho p. 0046 Reverse
gear
Only shiftthetransmissi oninto
posi tion 0046 when thevehicl eis
stationa ry. Automatic
transmissio n
127Drivi ngand parking Z

Do
not getinto thevehiclea gain du rin gthe
ref ueling pro ces s.Othe rwise, electro static
cha rge couldbu ildu pagain.
! Do
not used iese ltor efue lveh icles with a
ga sol ine eng ine.Don otsw itch onthe igni-
tio nifyou acc identa llyr efue lw itht he wrong
fu el.O the rwise, the fuel willente rthe fuel
sy stem .Even sma llam ounts ofthe wrong
fu el cou ldres ulti nd amaget ot he fuel sys-
tem andtheengine.Notifyaq ualifi ed spe-
cia list wo rksh opand have the fuel tank and
fu el lines drainedc omp letel y.
! Ove
rfilling the fuel tank couldda ma gethe
fu el system .
! Ta
ke car enottospilla ny fuel on painte d
su rfa ces .You cou ldothe rwised amaget he
pa intw ork.
! Use
afilter when adding fuel fro maf uel
can. Thefuel lines and/or thefuel inje ctio n
sy stem couldothe rwiseb eb locke dbyparti-
cle sfromt hefuel can.
If yo uo verfillthe fuel tank, fuel cou ldspray
ou tw hent he fuel pu mp nozzl eisr em ove d.
For furthe rinfo rma tiono nfueland fuel qu ality
(Y page 300 ). Ref
ueling
Ge neral info rmatio n The
fuel fillerf lapi su nlocke dorloc ked auto-
ma tica llyw heny ou unlock orlock the vehicle
wi th the Sma rtKeyorusing KEYL ESS-G O.
The positio no fthe fuel fillerc ap isdisp laye d
00B6 inthe instrument cluster .The arrow next
to the filling pump indicates the side ofthe
veh icle. On
the insideo fthe fuel fillerc ap,you willfind
info rma tiono nthe reco mme ndedfuel.
Ope ning the fuelfille rf lap 0043
Toopen the fuel fillerf lap
0044 Toinsert the fuel fillerc ap
0087 Tire pre ssu retab le
0085 Instr uctionlabe lfor fuel typ etob erefu-
el ed
X Swi tch the engineoff.
X Re mov ethe Sma rtKeyfromt heigniti on
lo ck.
X Pre ssthe fuel fillerf lapi nt he directi onof
ar row 0043.
The fuel fillerf laps wing su p.
X Tu rn the fuel fillerc ap cou nter-c lockwi se
and remove it.
X Inse rtthe fuel fillerc ap into theholder
bra cket onthe insideo ffue lfille rf lap 0044.
X Co mpl etelyins ert the fillern eck ofthe fuel
pu mp nozzl einto thetank, hookinp lace
and refuel.
X Onl yfillt he tank untilthe pump nozzl e
sw itch esoff.
i Do
not adda nymor efuelafter the pump
stop sfilling for the first time .Othe rwise, fuel
ma ylea ko ut.
Cl os ingt he fue lfille rf lap X
Re place thecap onthe fillern eck and turn
clo ckwi seunti lite ngages audibly.
X Close thefuel fillerf lap.
i Cl
ose thefuel fillerf lapb efor el oc king the
veh icle.
i If
yo ua redrivin gw itht he fuel fillerc ap
op en, the 00B6 reservefuelw arning lamp
fla she s.The 00B9 Check Engi newarning Ref
ueling
133Dr ivi ng andp arki ng Z

lamp
mayalsolight up.Am essage appears
in the multif unction display (Ypage 198). For
further informat iononwarnin gand indi-
cat orlamps inthe instrumen tclust er,see
(Y page 214). Problem
swithfuel andthef uel tank Problem
Possible
causes/consequ encesand0050 0050
Solut ions Fuel
isleakin gfromt he
vehic le. The
fuel lineorthe fuel tankisf aulty.
G WARN
ING
Risk ofexplo sionorfire.
X Turn theSmar tKey immed iatelytoposit ion0092inthe ignit ionlock
(Y page 118)andremo veit.
X Do not restartthe engin eunder anycircumst ances.
X Consult aqualified specialist workshop. The
fuel filler flapcan-
not beopen ed. The
fuel filler flapisnot unloc ked.
X Unlo ckthe vehic le(Y page 66). The
Smar tKey batt eryisdisch arged ornear lydisch arged.
X Unlo ckthe vehic leusing themec hanic alkey (Ypage 68). The
fuel filler flapisunloc ked,buttheopen ingmec hanis misjam-
med.
X Consult aqualified specialist workshop. Par
king Imp
ortant safet ynotes G
WARN
ING
Flamm ablemate rialsuch asleaves, grassor
twigs mayigniteifthe yc om eintoc ontac t
with hotpart softhe exhaus tsyst em or
exhaus tgas flow. There isar isk offire.
Park thevehic leso that noflamm ablemate -
rials comeintoc ontac twith part softhe
vehic lewhich arehot.Take particular care
not topark ondry grasslan dorharve sted
grain fields. G
WARN
ING
If you leave childrenunsuper visedinthe
vehic le,the ycould setitin mot ionby,for
exam ple:
R release thepark ingbrak e.
R shift theautom atictransm ission outof
the park ingposit ionP.
R star tthe engin e.
In addition ,the ym ayoperat evehic leequip-
men tand becom etrapped. Thereisar isk of
an acc ident andinjury.
When leavingthe vehic le,always takethe
Smar tKey with youand lock thevehic le.
Never leavechildrenunsuper visedinthe
vehic le.
! Always
securethe vehic lecor rectlyagainst
rollin gaway. Otherwise, thevehic leor its
drive train could bedamaged. 134
Par
kingDriving andparking

To
ensure thatthevehicle issecured against
rolling awayunintention ally:
R the electric parking brakemustbeapplied.
R the trans mission mustbeinposition 005D.
R the Smart Keymust beremoved fromthe
ignition lock.
R the front wheels mustbeturned towards the
curb onsteep uphillordownhill gradients. Switching
offthe engine G
WARNIN
G
The automatic transmission switches toneu-
tral position Nwhen youswitch offthe
engine. Thevehicle mayrollaway .There isa
risk ofan accident .
Aft erswitching offthe engine, alwaysswitch
to parking position P.Prevent theparked
vehicle fromrolling awaybyapplyi ngthe
parking brake.
X Apply theelectric parking brake.
X Shift thetrans mission toposition 005D
(Y page 126).
X With theSmar tKey:turn theSmart Keyto
position 0092inthe ignition lockandremove
it.
The immobilizer isactivated.
X With KEYLESS-GO: presstheKEYLE SS-GO
Start /Stopbutton (Ypage 118).
The engine stopsandallthe indicator lamps
in the instr ument cluster goout.
If the driver's doorisclosed, thisisthe
same asSmart Keyposition 0047.Ifthe driv-
er's door isopen, thisisthe same asSmart -
Key position 0092(Ypage 118).
The engine canbeswitched offwhile thevehi-
cle isin motion bypressing andholding the
Start /Stopbutton forabout threeseconds.
This funct ionoperates independent lyof the
ECO start/stopautomatic engineswitch-off
funct ion. Elec
tric par king brake
General notes G
WARNIN
G
If children areleft unsupervised inthe vehi-
cle, they could:
R open doors, thereby endangerin gother
persons orroad users
R get out and bestruck byoncom ingtraff ic
R operate thevehicle's equipment
Addition ally,children couldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmission outof
park position 005Dorshift themanual
trans mission toneutral
R start theengine
There isar isk ofan accident andinjury.
When leaving thevehicle, alwaystake the
Smart Keywith youand lock thevehicle. This
also applies forthe digital vehicle keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect.
Always keeptheSmart Keyoutofreach of
children. Thisalso applies forthe Digital
Vehicle Keyifthe "Digital Vehicle Key"func-
tion isactivated viaMercedes meconn ect.
The funct ionofthe electric parking brakeis
dependent onthe on-board voltage.Ifthe on-
board voltage islow orthere isam alfunct ion
in the system, itmay notbepossible toapply
the released parkingbrake.
X Ifthis isthe case, onlypark thevehicle on
level ground andsecure itto prevent itroll-
ing away .
X Shift theautomatic transmission toposition
005D.
It may notbepossible torelease anapplied
parking brakeifthe on-board voltageislow or
there isam alfunct ioninthe system. Contact a
qualified specialist workshop.
The electric parking brakeperforms afunct ion
test atregular intervalswhile theengine is
switched off.The sounds thatcanbeheard
while thisisoccurrin garenormal. Par
king
135Driving andparking Z

App
lyingorreleas ing manua lly X
To apply :push handle0043.
When thee lectric park ingbrak eisa pplie d,
th er ed 0049 (USAonly) or 0024 (Canada
on ly) ind icat orlamp lightsup inthei nstru-
men tclus ter.
The electric park ingbrak ecan also be
applie dwhen theS martKey isrem oved.
X To releas e:pull handle0043.
The red0049 (USAonly) or 0024 (Canada
on ly) ind icat orlamp inthei nstrumen tclus -
te rg oeso ut.
The electric park ingbrak ecan onlybe
rel ease d:
R when theS martKey isin pos ition 0047inthe
ign ition lock(Ypage 118)or
R ifth ei gn ition was switched on usin gthe
St art /S topb utto n
App lyingautom atical ly The
electric park ingbrak eisa uto mat ically
applie dwhen thet rans mis sion isin pos ition
005D and :
R thee nginei ss wit ched off or
R thed river isno tw ear ing aseat belt andthe
dri ver 'sdoor isopen ed
To pre ven tthe elec tric park ingbrak efrom
bein gauto mat icallyapplie d,pull handle0043.
The electric park ingbrak eisa lso applie dauto -
mat icallyif:
R Ac tive Distanc eAssistD ISTR ONI Cbring s
th ev ehiclet oas tand still or
R theH OLDf unction iske epin gthe veh icle
st ati onary In
addit ion,atleast oneo fthe followin gcondi-
ti on sm ustb efulfilled :
R thee nginei ss wit ched off
R thed river isno tw ear ing aseat belt andthe
dri ver 'sdoor isopen ed
R there isas yst em malf unction
R thep owe rsupp lyisins ufficien t
R thev ehiclei ss tation ary foralen gthy per iod
The red0049 (USAonly) or 0024 (Canada
on ly) ind icat orlamp inthei nstrumen tclus ter
ligh tsup.
The electric park ingbrak eisn otauto matically
applie difthe engin eiss wit ched off bythe
ECO start /stopf unction .
Rel eas ing autom atical ly The
electric park ingbrak eisr elease dauto -
mat icallywhen allofthef ollowin gcondition s
are fulfilled :
R thee nginei sr unnin g
R The seat belttong ue isen gage dint he belt
buc kle
R thet rans mis sion isin pos ition 005Bor005E and
you depr essthea cceler atorpedal orshif t
fr om position 005Dto005B or005E
R ifth et rans mis sion isin pos ition 005E,t he
tr unk lidmus tbec losed
If th es eat belt tong ue isno te ngage dint he
seat beltbuckle, thef ollowin gcondition sm ust
be fulf illed :
R thed river 'sdoor isclo sed
R you mov ethe trans mis sion outofpos ition
005D oryou haveprevio usly driven atas pee d
abov e2m ph(3km /h)
R ifth et rans mis sion isin pos ition 005E,t he
tr unk lidmus tbec losed
When thee lectric park ingbrak eisr elease d,
th e0024 indicat orlamp goesoutinthei nstru-
men tclus ter.
Eme rgency brak ing The
vehiclec an also bebrak edduri ngan
eme rgencyb yusingthe elec tric park ingbrak e.
X Whil edrivin g,push handle0043ofthee lectric
park ingbrak e.
The vehiclei sb rak edfor aslon gasthe han -
dle ofthee lectric park ingbrak eisp resse d.
The longer thee lectric park ingbrak ehandle
is depr essed, theg reate rthe brak ingforce. 136
Pa
rkingDriv ingand parki ng