2019 MERCEDES-BENZ SLC ROADSTER fuel

Locking/u
nlockingcentr ally You
canstart ,loc kor unlo cktheveh icle usin g
KE YLE SS-GO .To do this, you onlynee dcar ry
th eSm artKey with you.Youcancom bine the
fun ction sof KE YLE SS-GO with those ofacon -
ven tional SmartKey. Unloc kth eveh icle by
usin gKE YLE SS-GO ,for instan ce, and lockit
usin gth e0037 buttonontheSm artKey.
The driver'sdoor andthedoor atwhic hth e
han dleisused, mustbothbe closed. The
Sm artKey must beouts idetheveh icle.When
loc kin gor unlo cking with KEYLE SS-GO ,th e
dist ancebet ween thekey and thecor respon d-
ing door handlemust notbegreat erthan 3ft
(1 m).
A che ckwhic hperio dicall yest ablishe sa radio
con nectionbet ween theveh icle and the
Sm artKey determ ineswhet heravalid Smart-
Key isin theveh icle.This occurs, forexam ple:
R when start ing theeng ine
R while driving
R when theext ern aldoor handles aretouche d X
To unlock thevehicl e:touch theinn ersur-
fac eof thedoor handle.
X To lock thevehicl e:touch sensor sur-
fac e0043 or0044.
Mak esure that you donot touch theinn er
surf ace ofthedoor handle.
X Convenien ceclosing feature: touch
rec esse dsen sor surf ace 0044for anext end ed
perio d.
Fur ther inform ationon thecon venience
clo singfeat ure (Ypage 77).
Deact ivatingand activat ing If
you donot intend touse aSm artKey foran
ext end edperio dof tim e,you can deac tivate
th eKE YLE SS-GO function ofthekey. The Sm
artKey willthen use verylitt lepower ,
th ereb ycon servingbatt erypower .For thepur-
poses ofact ivat ion/de activat ion,th eveh icle
must notbenear by.
X To dea ctiv ate: pres sth e0037 buttonon
th eSm artKey twicein rapid successio n.
The batterychecklamp (Ypage 69)of the
Sm artKey flash estwic ebrief lyand light sup
onc e,then KEYLE SS-GO isdeac tivated .
X To act ivat e:pres sany buttonontheSm art-
Key.
or X Inser tth eSm artKey intoth eign itio nloc k.
KE YLE SS-GO andallofits assoc iatedfea-
tur es are available again. Cha
nging thesett ings ofthelocking
syst em
You canchan getheset tings oftheloc kin g
syst em. This mean sonl yth edriv er'sdoor ,th e
lock able stowage compartmen tsintheveh icle
int erio rand thefuel filler flapareunlo cked
when theveh icle isunlo cked. This isusef ulif
you frequen tlytravel alone.
X To cha nge thesett ing: pressand hold
down the0036 and0037 buttons simult ane-
ously forabout sixsec ond sunt ilth ebatt ery
indi catorlamp (Ypage 69)flash estwic e.
If th eset tingof theloc kin gsyst emischan ged
with inthesign alran geoftheveh icle,pres sing
th e0037 or0036 button:
R lock sor
R unlo cksth eveh icle
The SmartKey now function sas follo ws:
X To unlock :pres sth e0036 buttononc e.
X To unlock centrally:pres sth e0036 button
twic e.
X To lock centr ally:pres sth e0037 button.
The KEYLE SS-GO function ischan gedasfol-
lows:
X To unlock thedr iver 'sdoor :to uch the
inn ersurf ace ofthedoor handleonthedriv -
er' sdoor .
X To unlock centrally:to uch theinn ersur-
fac eof thedriv eror fro nt-pas senger door
han dle.
X To lock centr ally:to uch theout ersen sor
surf ace onone ofthedoor handles. Sm
artKey
67Openingand closing Z

Never
leavechildren oranimal sunattended
in the vehicle.
When leavingthe vehicle, always take the
SmartKey withyouand lock thevehicle. This
also appliesforthe Digital Vehicle Keyifthe
"Digital Vehicle Key"function isactivated via
Mercedes meconnect . Unlo
cking andopeni ngdoors from
the inside
! The
side window swil lnot open/close if
the battery isdischarge dor ifthe side win-
dows haveicedup.Itwil lthen notbepossi-
ble toclose thedoor. Donot attempt to
force thedoor closed. Youcould otherwise
dama gethe door orthe side window .
You canopen adoor from inside thevehicle
even ifit has been locked.
If the vehicle haspreviou slybeen locked from
the outside ,opening adoor from theinside
wil ltrigger theanti-theft alarm system. Switch
off the alarm (Ypage 64). X
Pull door handle 0044.
If the door islocked, lockingknob0043pops
up. The door isunlocked andcanbe
opened.
When adoor isopened, theside window on
that side opens slightly .When thedoor is
closed, theside window closesagain. Cen
trally locking andunloc kingthe
vehic lefrom theinside
You cancentrally lockorunlock thevehicle
from theinside. Forexample ,you can unlock the
front- passe ngerdoor from theinside or
lock thevehicle beforeyoupullawa y. X
To unloc k:press button 0043.
X To loc k:press button 0044.
If the front- passe ngerdoor isclosed, the
vehicle locks.
The central locking buttondoesnotlock or
unlock thefuel fillerflap orthe stowage com-
partment inthe center console.
You cannot unlockthevehicle centrally from
the inside ifthe vehicle hasbeen locked with
the SmartKey orKEYLESS- GO.
You canopen adoor from inside thevehicle
even ifit has been locked.
If alocked doorisopened fromtheinside, the
previou sunlock statusofthe vehicle willbe
taken intoconsideration if:
R the vehicle waslocked usingthelocking
button forthe central locking, or
R ifthe vehicle waslocked automa tically
The vehicle willbe fullyunlocked ifit had pre-
viousl ybeen fullyunlocked. Ifonly thedriver's
door hadbeen previou slyunlocked, onlythe
door which hasbeen opened fromtheinside is
unlocked. 72
Do
orsOpeni ngand closi ng

G
WARNING
After ashort time,hillstart assistwil lno lon-
ger brake yourvehicl eand itcoul droll awa y.
There isarisk ofan accide ntand injury .
There fore,quickly move yourfoot from the
brake pedalto the accele ratorpedal.Never
lea vethe vehicl ewhen itis held byhillstart
assi st.
Hill start assistisnot active if:
R you arepulling awayon aleve lroad oron a
dow nhill gradient
R the transmissi onisin posi tion 005C
R the electric parkingbrake isapp lied
R ESP ®
is malfu nctioning EC
Ostart/stop function
Introduc tion The
ECO start/stop functionswitches the
engine offautomatical lyifthe vehicl eis stop-
ped under certain conditions.
The engine startsautomatica llywhen the
drive rwants topul lawa yaga in.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.The vehicl emay
begi nmoving. Thereisarisk ofaccide ntand
injury .
If you wishto exit thevehicl e,alw aysturn
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 yby the ECO start/stop function,the00D6
ECO symb olisshow nin the multi function dis-
pla y.
Automatic engineswitch-off If
the vehicl eis braked toastandstil lwith the
transmissi onin005B or005C, theECO 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 beltis fastened
All ofthe vehicl e'ssystems remainactive
when theengine isstoppe dau tomatical ly.
Automatic engineswitch-off cantake placea
maximu mof four times inarow (initi alstop,
then three subsequ entstops).
The HOLD function canbeactiva tedifthe
engine hasbeen switched offautomatical ly.It
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

Problems
withtheengine Problem
Possible
causes/co nsequences and0050 0050
Solutions The
engine doesnot
start. The
HOLD functionorAct ive Distanc eAssist DISTRONIC isactiva-
ted.
X Deactivat ethe HOLD function(Ypage 151)orAct ive Distanc e
Assist DISTRONIC (Ypage 149).
X Try tostart theengine again. The
engine doesnot
start. Thestarter motor
can beheard. R
There isamalfunction inthe engine electron ics.
R There isamalfunction inthe fuel supply .
Before attempt ingtostart theengine again:
X Turn theSmartK eyback toposition 0092inthe ignition lock.
or X Press theStart /Stopbutton repeatedly untilallindicator lampsin
the instrumen tcluster goout.
X Try tostart theengine again(Ypage 119). Avoid excessively long
and frequent attemptsto start theengine asthese willdrain the
battery.
If the engine doesnotstart after several attempt s:
X Consult aquali fiedspecialist workshop. The
engine doesnot
start. Youcannot hear
the starter motor. The
on-board voltageistoo low because thebattery istoo weak or
discharged.
X Jump-start thevehicle (Ypage 260).
If the engine doesnotstart despite attemptsto jump-st artit:
X Consult aquali fiedspecialist workshop. The
starter motorwasexposed toathermal loadthatwastoohigh.
X Allow thestarter motortocool down forapproximately two
minutes.
X Try tostart theengine again.
If the engine stilldoes notstart:
X Consult aquali fiedspecialist workshop. The
engine isnot run-
ning smoothly andis
misfiring. There
isamalfunction inthe engine electron icsorinamechanical
componen tof the engine management system.
X Only depress theaccelerator pedalslightly.
Otherwise, non-combusted fuelmay getinto thecatalytic con-
verter anddamage it.
X Have thecause rectified immediately ataquali fiedspecialist
workshop. Driving
123Drivingandparking 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 242). 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 264)andthenotes ontowing with
both axles onthe ground (Ypage 264). DYNAMIC
SELECTbutt on
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 .Aft erashort 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
afew 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

0044 Neut
ral
Do not shiftthe transmi ssion to
0044 while dri ving .The automa tic
tra nsmi ssion cou ldothe rwise be
da ma ged.
No powe ris tra nsmi ttedfromthe
eng inetothe drive wheels.
Re leas ing the brakepedalwi llal lo w
yo uto mov ethe vehiclefre ely, e.g .
to push itor tow it.
If ESP ®
is de acti vated orfaulty: shift
the transmi ssion topositio n0044 if
the vehicleis in da nge rof ski dding ,
e.g .on icy roads.
! Co
asting inneu tral005C may
cau sedama getothe drive train. 003A Dri
ve
The automa tictransmi ssion
cha nge sge ar automa tically. All
for wa rdgearsar eav ailabl e. Dri
ving tips
Ch ang ingge ar The
automa tictransmi ssion shifts thro ughthe
ind ividu alge arsau toma tically wh en itis in
tra nsmi ssion positio n005B. Thisau toma ticgear
shi fting behavio ris de term inedby :
R the selecte ddri ve pro gram
R the positio nof the acce lera tor pedal
R the roadspe ed
Ac celerator pedalpos ition Yo
ur sty leof dri ving influences howtheauto-
ma tic transmi ssion shifts gear:
R little thro ttle:ea rly upshi fts
R mor ethro ttle:la te upshi fts Ki
ck dow n Use
kickd ownfor maxim um accelera tion.
X Dep ressthe accelera tor pedalbe yond the
pre ssu repoint.
The automa tictransmi ssion shifts toalowe r
ge ar dependi ng on the enginespeed.
X Eas eoff the accelera tor pedalonce the
de sired speedisrea che d.
The automa tictransmi ssion shifts back up. Dri
veprog rams
Dri veprog ramC(C omfo rt) In
city trafficand stop -starttra ffic, dri ve pro -
gra mCis reco mme nded.
Driv epro gramCis cha racteri zedbythe follow-
ing :
R the vehiclede liver scomf ortable, eco nomi cal
ha ndl ing characteri stics.
R the vehiclepu lls aw ay mor ege ntly in
for wa rdand revers ege ars, unl ess theaccel-
era tor pedalis de pre sse dfu lly.
R the vehicleha simp roveddriving stability,
for exa mpl eon slip pe ry roa dsu rfa ces .
R op tima lfu el cons umption resulting fromthe
au toma tictransmi ssion shifting upsoo ner.
The vehicleis dri ven inthe low eng inespee d
ra nge and thewheelsareless likel yto spin.
R the suspe nsion exh ibits comf ortable da mp-
ing setti ngs(ada pti ve dampi ngsystem only
in veh icles with AMG RIDE CONTR OLsports
su spe nsion) .
R the stee ring exhibits comf ortable stee ring
cha racteri stics.
Dri veprog ramS(S port) Driv
epro gramSis cha racteri zedbythe follow-
ing :
R the vehicleexh ibits spo rtydriving character-
is tics .
R the vehiclepu lls aw ay infirst gear.
R the automa tictransmi ssion shifts uplater.
The fuel cons umption possi blybe ing highe r
as ares ultof the later automa tictransmi s-
si on shiftpo ints . 12
8 Au
tomati ctrans missionDr ivi ng andparki ng

R
the susp ens ion exh ibits firm dampi ngset-
ting s(ve hicle swi th adaptive dampi ngsys-
tem orAMG sports susp ens ion).
R the steering exh ibits sporty steering cha rac-
teri stics.
Dri veprog ramS+(Sport Plus) Dri
vepro gramS+ ischa racteri zedbythe fol-
lo wi ng:
R the vehicleexh ibits partic ular ly sp orty driv-
ing characteri stics.
R the vehiclepu lls aw ay infirst gear.
R the automa tictransmi ssion shifts uplater.
The fuel cons umption possi blybe ing highe r
as ares ultof the later automa tictransmi s-
si on shiftpo ints .
R the susp ens ion exh ibits partic ular ly firm
da mpi ngsetting s(ve hicle swi th adap tive
da mpi ngsyste mor AMG sports susp en-
si on) .
R the steering exh ibits sporty steering cha rac-
teri stics.
R the ECO start/sto pfu nctio nis not availabl e.
Dri veprog ramI(I ndi vidual ) In
dri ve pro gramIthe followi ng pro pertie sof
the drive pro gramcan beselected :
R the drive (engi ne and transmi ssion manag e-
ment)
R the susp ens ion (ve hicle swi th adaptive
da mpi ngsyste mor AMG sports susp ens ion)
R the steering
R the availabi lity of the ECO start/sto pfu nc-
tio n
Info rma tionab ou tconfi gurin gdri ve pro gramI
wi th the multimed iasyste mcan befou ndin
the DigitalOp era tor' sMa nua l.
Dri veprog ramE(E co no my) Dri
vepro gramEis cha racteri zedbythe follow-
ing :
R the vehicleexh ibits partic ular ly eco nomi cal
ha ndl ing characteri stics.
R the vehiclepu lls aw ay mor ege ntly in
for wa rdand revers ege ars, unl essthe accel-
era tor pedalis de pre sse dfu lly.
R the vehicleha sim pro ved drivin gsta bility,
for exa mpl eon slip pe ry roa dsu rfa ces . R
op tim alfuel cons umption resulting fromthe
au toma tictransmi ssion shiftin gup soo ner.
Th eveh icleis dri ven inthe low eng inespee d
ra nge and thewheelsareless likel yto spin.
R the susp ens ion exh ibits comf ortable da mp-
ing setting s(ve hicle swi th adaptive dampi ng
sy ste mor AMG sports susp ens ion).
R du rin gde cel era tion,the engineisdisco n-
necte dfro mthe drive train. Theveh icleus es
kine ticene rgy and cons umesless fuel
(co asting mod e).
R the steering exh ibits comf ortable ste ering
cha racter istics . Man
ualgear shi fting
Ge neral notes Yo
ucan change gear yourse lfus ing the steer-
ing wheelpa dd leshi fter s.Th etra nsmi ssion
mu stbe inpo sitio n005B todo this.
Dep endingonwhich steering wheelpa dd le
shi fter ispu lled ,the automa tictransmi ssion
im med iatel yshi fts into thenext gear down or
up ,if pe rmi tted .
To usema nua lshi ftin g,youha ve two optio ns:
R temp orarysetting
R pe rma nent setting
If yo uacti vate ma nua lge arshi ftin g,the multi-
fu nctio ndisp laywi llsho wthe current gear
ins tea dof tra nsmi ssion positio n005B.
If ma nua lge arshi ftin gis de acti vated ,the gears
wi llbe selected automa tically.
Tempo rarysettin g X
To activ ate :shi ftthe selector lever to005B.
X Pu llste ering wheelpa dd leshi fter 0043or0044. Au
tomati ctrans mission
129Dr ivi ng andparki ng Z

The
temporary settingisactive foracert ain
amount oftime. Under certaincondit ions,the
minimum amountoftime isexten ded,e.g.in
the case oflateral acceleration ,during overrun
mode orwhen driving onsteep terrain.
X To deactivat e:pull steerin gwheel paddle
shifter 0044and hold itin place.
or X Use thelever toswitch thetrans mission
position.
or X Use theDYNA MICSELECT button tochange
the drive program.
Perma nentsetting X
To activat e:shift theselector leverto005B.
X Press button 0043.
X To deactivat e:press button 0043.
Shifting gears All
vehicles (exceptforMercedes-AMG
SLC 43) X
To shift up:pull steerin gwheel paddle
shifter 0044.
The automatic transmission shiftsuptothe
next gear.
If the maximum enginespeedinthe cur-
rent lyengaged gearisreached andyoucon-
tinue toaccelerate, theautomatic transmis-
sion automatically shiftsupinorder topre-
vent engine damage.
X To shift down: pullsteerin gwheel paddle
shifter 0043.
The automatic transmission shiftsdownto
the next gear.
Automat icdown shiftin goccurs whencoast-
ing.
If the engine weretoexceed themaximum
engine speedwhenshiftin gdown, theauto-
matic transmission protectsagainst engine
damage bynot shiftin gdown.
Mercedes-AMG SLC43
! If
manual gearshifting ispermanent lyacti-
vated, theautomatic transmission doesnot
shift upautomatically evenwhen theengine
limiting speedforthe current gearis
reached. Whentheengine limiting speedis
reached, thefuel supply iscut toprevent
the engine fromoverrevv ing.Always make
sure thattheengine speeddoesnotreach
the red area ofthe tachomet er.There isoth-
erwise arisk ofengine damage. X
To shift up:pull steerin gwheel paddle
shifter 0044.
The automatic transmission shiftsuptothe
next gear.
X To shift down: pullsteerin gwheel paddle
shifter 0043.
The automatic transmission shiftsdownto
the next gear. 130
Automa
tictransmissionDriving andparking