2019 MERCEDES-BENZ SLC ROADSTER brake light

the
vehicleon the desired course withi nph ysi-
cal limi ts. ESP ®
as sists the driver when pulling
aw ay on wetor slip pe ry roa ds.ESP ®
can also
sta bilize the vehicledu rin gbra king .
ETS (Electro nicTrac tionSys tem) i
Ob
serve the "Impo rtantsafety note s"sec-
tio n(Y page 57).
ETS tractio ncontro lis pa rtof ESP ®
.
ETS brakes thedrive wheelsind ividu ally ifthe y
sp in. Thisena bles youto pullaw ay and accel-
era teon slip pe ry surfa ces ,for exa mpl eif the
roa dsu rfa ce isslip pe ry on one side .In addi-
tio n,mor edri ve torq ueistra nsfe rredto the
wh eelor wh eelswith tra ctio n.
ETS remains acti vewhen youde acti vate ESP ®
.
Impo rtant safety notes G
WA
RNING
If ESP ®
is ma lfunctio ningitwi llnot provide
any vehiclesta bilizati on. Thereisan
incr easedris kof ski dding orofan acc ident.
Exerc ise cau tionwh en conti nuing todrive.
Hav eESP ®
che cked ataqu alifi ed speci alist
wo rksh op.
Wh entow ingthe vehiclewi th the rearaxl e
ra ised ,ob serve the note son ESP ®
(Y page 264 ).
If the 00BB ESP®
OFF warning lamp lights up
conti nuously,the nESP ®
is de acti vated .
If the 00E5 ESP®
wa rning lamp and the00BB
ESP ®
OFF warning lamp arelit conti nuously,
ESP ®
is not availabl e du eto ama lfunctio n.
Ob serve the inform ation on warning lamps
(Y page 211 )and disp laymes sage swh ich
ma ybe sho wninthe instrument cluste r
(Y page 183 ).
i Onl
yus ewh eelswith the reco mme nded
tire sizes .Onl ythe nwi llESP ®
functio npro p-
erl y. Ch
arac teristics ofESP® Ge
neral info rmatio n
If the 00E5 ESP®
wa rning lamp goes out
be for ebe ginning thejourney ,ESP ®
is au to-
ma tica lly acti ve.
If ESP ®
inte rvenes ,the 00E5 ESP®
wa rning
la mp flashe sin the instrument cluste r.
If ESP ®
inte rvenes :
X Do not deacti vate ESP ®
und erany circum -
sta nces .
X Onl yde pre ssthe accelera tor pedalas faras
nece ssarywh en pulling away.
X Ada ptyour drivin gsty leto suitthe prevailing
roa dand weath ercond itions .
EC Ostart/ stopfun ction
Th eECO start/sto pfu nctio nsw itch esthe
eng ineoffautoma tically wh en the vehicle
stop smov ing.Th eeng inestarts automa tically
wh en the driver wants topullaw ay again.
ESP ®
rem ains inits pre viouslyse lected status ,
e.g .if ESP ®
wa sde acti vated befor ethe engine
wa sau toma tically sw itch edoff.
De activ atin g/activ atin gES P®
(e xc ept
Me rce des -AMG SLC43) Impo
rtant safety notes
i Ob
serve the "Impo rtantsafety note s"sec-
tio n(Y page 57) .
Yo ucan select betwe enthe followi ng states of
ESP ®
:
R ESP ®
is acti vated
R ESP ®
is de acti vated G
WA
RNING
If yo ude acti vate ESP ®
,ESP ®
no longe rsta -
bi lizes thevehicle. There isan incr easedris k
of ski dding and anacc ident.
Onl yde acti vate ESP ®
in the situa tions
de scri bedin the followi ng.
It ma ybe best to deacti vate ESP ®
in the fol-
lo wi ng situa tions:
R wh en using snowcha ins
R in de ep sno w
R on sand orgra vel Dr
ivi ng safet ysy stem s
61Safet y Z

Spi
nning thewheel sres ults inacutti ngacti on
wh ich provides bette rgri p.
i Activa
teESP ®
as soo nas the situations
des crib edabove nolonger apply. ESP ®
wi ll
othe rwisenot beableto stab ilize the vehicle
if the vehiclestar tsto skid orawh eel star ts
to spi n.
! Avoi
dspi nning thedriven wheel sfor an
extend edper iod wi th ESP ®
dea ctiva ted.You
cou ldothe rwisedamag ethe drivetra in.
De acti vatin g/acti vatin gES P® X
To deac tivate :pre ssbutton 0043.
The 00BB ESP®
OFF warning lamp inthe
instru ment cluster lights up.
X To acti vate :pre ssbutton 0043.
The 00BB ESP®
OFF warning lamp inthe
instru ment cluster goesou t.
Chara cteristi cswhe nES P®
is deac tiva-
ted
If ESP ®
is dea ctiva tedand one ormore wheel s
star tto spi n,the 00E5 ESP®
wa rning lamp in
the instru ment cluster flashe s.In such situ a-
tions ,ESP ®
wi llnot stab ilize the vehicle.
If yo udea ctiva teESP ®
:
R ESP ®
no longer improve sdri ving stability
R engi netorqu eis no longer limite dand the
dri ve wheel sare ableto spi n
R tracti oncontrol isstil lacti vate d
R Active BrakeAssistisno longer availab le;
nor isitacti vate difyo ubra kefirm lywith
as sis tance fromESP® R
PR E-SAFE ®
is no longer availab le,nor isit
acti vate difyo ubra kefirm lyand ESP®
inter -
vene s
R ESP ®
stil lpro vides suppo rtwh en youbra ke
firm ly
De acti vatin g/acti vatin gES P®
(e xc ept
Merc edes-AMG SLC43) Impo
rtant safetynotes
i Obs
erve the"Important safety notes "sec-
tion (Ypage 57).
You canselect betw eenthefollowi ng state sof
ESP ®
:
R ESP ®
is acti vate d
R SPOR Tha ndl ing mod eis acti vate d
R ESP ®
is dea ctiva ted. G
WARNI
NG
Whe nSPOR Tha ndl ing mod eis acti vate d,
there isagre aterris kof skid ding and acci-
dents .
Only activate SPOR Tha ndl ing mod ein the
situ ations describ edinthe followi ng. G
WARNI
NG
If yo udea ctiva teESP ®
,ESP ®
no longer sta-
bi lizes thevehicle. The reisan incre ased risk
of skid ding and anacci dent.
Only deactiva teESP ®
in the situations
des crib edinthe followi ng.
In the followi ng situ ations, itmay bebette rto
acti vate SPOR Tha ndl ing mod eor dea ctiva te
ESP ®
:
R wh en using snow chains
R in dee psnow
R on sand orgra vel
R on spe cially des ignate droa dswhen the
veh icle's ownove rstee ringandunderste er-
ing characte ristics aredesired
Spi nning thewheel sresu ltsinacutti ngacti on
wh ich provides bette rgri p.
Drivi nginSPOR Tha ndl ing mod eor withou t
ESP ®
req uires anextrem elyqu alifi ed and
expe rienced driver. 62
Dri
vin gsafe tysys temsSafe ty

i
Activa
teESP ®
as soo nas the situa tions
de scri bedab ove nolonge rap ply. ESP ®
wi ll
othe rwisenot beableto sta bilize the vehicle
if the vehiclesta rts toski dor awh eelsta rts
to spi n.
! Avoi
dspi nning thedriven wheelsfor an
exte ndedpe rio dwi th ESP ®
de acti vated .Yo u
cou ldothe rwisedama gethe drivetra in.
De acti vati ng/ac tivatin gES P® X
To acti vate SPORThand ling mode :bri efly
pre ssbutton 0043.
The 0074 SPORTha ndl ing mod ewa rning
la mp inthe instrum entcluster lights up.The
SPO RTHandling Mode SPO
RTHandling Modemes sage appe arsin
the multifu nctio ndispl ay.
X To
deac tivate SPO RThand ling mode :
bri eflypre ssbutton 0043.
The 0074 SPORTha ndl ing mod ewa rning
la mp inthe instrum entcluster goesou t.
X To deac tivate ESP®
:pre ssbutton 0043unti l
the 00BB ESP®
OFF warning lamp lights up
in the instrum entcluster .
The 00E5 OFF OFF
message appe arsin the multi-
fu nctio ndispl ay.
X To acti vate ESP®
:bri eflypre ssbutton 0043.
The 00BB ESP®
OFF warning lamp inthe
ins trum entcluster goesou t.The 00E5 ESP®
ON ON
mes sage appe arsin the multifu nctio n
di spl ay.
Cha racte risticsof acti vate dSPO RThan-
dli ng mode
If SPOR Tha ndl ing mod eis acti vated and one
or more wheelssta rtto spi n,the 00E5 ESP®
wa rning lamp inthe instrum entcluster flashe s.
ESP ®
onl ysta bilizes thevehicleto alimite d
de gre e. Whe
nSPOR Tha ndl ing mod eis acti vated :
R ESP ®
onl yimp rove sdri ving stability to a
li mite dde gre e
R trac tioncontro lis sti llacti vated
R eng inetorq ueisno longe rlimite dand the
dri ve wheelsareab leto spi n
R ESP ®
sti llpro vides supp ort when youbra ke
fir mly
Cha racte risticswh en ESP®
is deac tiva-
ted
If ESP ®
is de acti vated and one ormore wheels
sta rtto spi n,the 00E5 ESP®
wa rning lamp in
the instrum entcluster flashe s.In such situa -
tio ns, ESP ®
wi llnot stabilize the vehicle.
If yo ude acti vate ESP ®
:
R ESP ®
no longe rimp rove sdri ving stability
R eng inetorq ueisno longe rlimite dand the
dri ve wheelsareab leto spi n
R trac tioncontro lis sti llacti vated
R Active BrakeAssi stisno longe rav ailabl e;
nor isitacti vated ifyo ubra kefirmly with
as sista nce from ESP®
R PR E-SAFE ®
is no longe rav ailabl e, nor isit
acti vated ifyo ubra kefirmly and ESP®
inte r-
vene s
R ESP ®
sti llpro vides supp ort when youbra ke
fir mly EBD
(electro nicbrake force distrib u-
tio n)
Ge neral info rmatio n EBD
moni torsandcontro lsthe brakepre ssu re
on the rearwh eelsto imp rove driving stability
wh ile bra king .
Impo rtant safetynotes i
Obs
ervethe "Impo rtant safety notes "sec -
tio nfor driving safety system s(Y page 57). G
WA
RNING
If EBD isma lfunctio ning,the rearwh eelscan
lo ck, e.g.und erfullbra king .Thi sincr eases
the riskof ski dding and anacci dent.
Yo usho uld ther eforeadaptyo ur driving
sty leto the differ ent handl ing characteri s- Dri
ving safe tysys tems
63Safety
Z

Smar
tKey Import
antsafety notes G
WARNING
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment
Additionally, childrencouldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmissionoutof
park position 005D
R start theengine
There isarisk ofan accident andinjury.
Never leavechildren oranimals unattended
in the vehicle.
When leaving thevehicle, alwaystake the
SmartK eywith youand lock thevehicle. This
also applie sfor the Digital Vehicle Keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect. G
WARNING
If you attach heavyorlarge object sto the
SmartK ey,the SmartK eycould beuninten -
tionally turnedinthe ignition lock.This
could cause theengine tobe switched off.
There isarisk ofan accident.
Do not attach anyheavy orlarge object sto
the SmartK ey.Remove anybulky keyrings
before insertin gthe SmartK eyinto theigni-
tion lock.
! Keep
theSmartK eyaway fromstrongmag-
netic fields. Otherwise, theremote control
funct ioncould beaffected.
Str ong magnetic fieldscanoccur inthe
vicinity ofpowerful electrical installations.
Do not keep theSmartK ey:
R with electron icdevices, e.g.amobile phone
or another SmartKey
R with metallic objects,e.g. coins ormetal foil
R inside metallic objects,e.g. ametal case
This canaffect thefunct ionality ofthe
SmartK ey. Smar
tKeyfunctions 0043
0037 Locks thevehicle
0044 0054 Unlock sthe trunk lid
0087 0036 Unlock sthe vehicle
X To unlock centrally: pressthe0036 but-
ton.
If you donot open thevehicle withinapprox-
imately 40seconds ofunlocking:
R the vehicle islocked again.
R anti-t heftprotect ionisreactivated
X To lock centrally: pressthe0037 button.
The SmartK eycent rally locks/un locks:
R the doors
R the trunk lid
R the stowage compartmen tin the cent ercon-
sole
R the fuel filler flap
The turn signals flashonce when unlocking
and three times whenlocking.
You canalso setanaudib lesignal toconfirm
that thevehicle hasbeen locked. Theaudib le
signal canbeactivated anddeactivated using
the on-board computer (Ypage 178).
When itis dark, thesurround lightingalso
comes onifit is activated inthe on-board
computer (Ypage 177). KEY
LESS-GO
General notes Bear
inmind thattheengine canbestarted by
any ofthe vehicle occupants ifthere isaKEY-
LES S-GO keyinthe vehicle (Ypage 120). 66
Smar
tKeyOpening andclosing

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
engine cannot be
started usingtheSmart-
Key. The
on-board voltageistoo low.
X Switch offnon- essential consumers, e.g.seat heating orinterior
lighting, andtrytostart theengine again.
If this does notwork:
X Check thestarter battery andcharge itifnecessary
(Y page 259).
or
X Jump-start thevehicle (Ypage 260).
or
X Consult aquali fiedspecialist workshop. The
engine cannot be
started usingKEYLE SS-
GO. TheSmartK eyisin
the vehicle. The
vehicle islocked.
X Unlock thevehicle andtrytostart thevehicle again. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 69)and replace itifneces-
sary (Ypage 69).
If this does notwork:
X Start yourvehicle withtheSmartK eyinthe ignition lock. There
isinterf erence fromapowerful sourceofradio waves.
X Start yourvehicle withtheSmartK eyinthe ignition lock. You
have lostaSmart-
Key. X
Have theSmartK eydeactivated ataqual ified specialist work-
shop.
X Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. You
have lostthe
mechanical key. X
Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. The
side windows can-
not beopened orclosed
using theconven ience
opening/c losingfea-
ture. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 69)and replace itifneces-
sary (Ypage 69). Doo
rs Import
antsafety notes G
WARNING
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment Additionally,
childrencouldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmission outof
park position 005D
R start theengine
There isarisk ofan accident andinjury. Doo
rs
71Opening andclosing
Z

starts
automatically andthebraking effectof
the HOLD function isdeactivated.
Automatic enginestart The
engine startsautomatically if:
R you switch offthe ECO start/st opfunction
by pressing theECO button
R you release thebrake pedalintransmission
position 005Bor005C and theHOLD function is
not active
R you depress theaccelerator pedal
R you engage reverse gear005E
R you move thetransmission outofposition
005D
R you switch todrive program S+
R you unfasten yourseatbeltoropen thedriv-
er's door
R the vehicle startstoroll
R the brake system requires this
R the temperature inthe vehicle interior devi-
ates from thesetrange
R the system detects moisture onthe wind-
shield whentheair-conditioning systemis
switched on
R the battery's condition ofcharge istoo low Shifting
thetransmission toposition 005Ddoes
not start theengine.
Deac tivating oractivating theECO
start /stop function X
To deactivate: pressECObutton 0043.
Indicator lamp0044goes out.
X To activate: pressECObutton 0043.
Indicator lamp0044lights up.
If indicator lamp0044isoff, theECO start/st op
function hasbeen deactivated manuallyor as
the result ofamalfunction. Theengine will
then notbeswitched offautomaticall ywhen
the vehicle stops. 122
DrivingDriving
andparking

econ
omical driving. Ahigher levelindicat esa
more economical driving style.Ifthe three
outer areas arecomplet elyfilled atthe same
time, thedriver hasadopted themost eco-
nomic aldriving styleforthe select edsett ings
and prevailing conditions .The ECO display
border lightsup.
The ECO display doesnotindicat ethe actual
fuel consumption .The additionally achieved
range displayed underBonus fr.start Bonus
fr.start does
not indicat eafixed consumption reduction.
In addition todriving style,theactual con-
sumption isaffect edbyother factors, such as:
R load
R tire pressure
R cold start
R choice ofroute
R active electricalconsumers
These factorsare not included inthe ECO dis-
play.
An econ omical driving stylespecially requires
driving atmoderate enginespeeds.
Ach ieving ahigher valueinthe categor ies
"Acc eleration" and"Constan t":
R observe thegearshift recommendat ions.
R drive thevehicle indrive program Cor E.
In urban trafficand stop- start traffic,drive pro-
gram Cis recom mended.
On long journ eysatacon stant speed, e.g.on
the highway, onlytheouter areafor"const ant"
will change.
The ECO display summarizes thedriving style
from thestart ofthe journ eytoits complet ion.
Therefor e,there aremore marked changes in
the outer areas atthe start ofajourn ey.On
longer journeys,there arefewer changes .For
more marked changes ,perform amanual rest
(Y page 171).
Furt herinfor mation onthe ECO display
(Y page 170). Br
aking
Impor tantsafety notes G
WARN
ING
If you shift down onaslippery roadsurface
in an attem pttoincr ease theengine' sbrak-
ing effec t,the drive wheels couldlosetheir grip.
There isan incr eased danger ofskid-
ding andacciden ts.
Do not shift down foradditional enginebrak-
ing onaslippery roadsurface.
Downhill gradients !
On
long, steep gradient s,you must reduce
the load onthe brakes. Touse engine brak-
ing, shift toalower gearingood time. This
helps youtoavoid overheat ingthe brakes
and wearing themoutexces sively.
When making useofthe engine braking
effec t,itis possible thatadrive wheel may
not turn forsome time,e.g.inthe case of
suddenly changingor slippery roadsurface
con ditions .This could cause damage tothe
drive train.This type ofdamage isnot cov-
ered bythe Mercedes- Benzwarrant y.
Change intoalower gearingood timeonlong
and steep downhill gradients.This isespecially
import antifthe vehicle isladen.
This also applies ifyou have activat edcruise
con trol orAct ive Dist ance Assist DISTRONIC.
Heavy andlight loads G
WARN
ING
If you rest your footonthe brake pedal
while driving, thebraking systemcanover-
heat. Thisincreases thestoppin gdistanc e
and caneven cause thebraking systemto
fail. There isarisk ofan acciden t.
Never usethebrake pedalasafootr est.
Never depress thebrake pedalandthe
accelerat orpedal atthe same time.
! Depress
ingthe brake pedalconstant ly
results inexces siveandpremature wearto
the brake pads.
If the brakes havebeen subject edtoaheavy
load, donot stop thevehicle immediately, but
drive onfor ashort while. Thisallows theair-
flow tocool thebrakes morequickly.
Wet roads If
you have driven foralong time inheavy rain
without braking,there maybeadelayed reac-
tion from thebrakes whenbraking forthe first Driving
tips
139Driving andparking Z

tim
e.Thi sma yal so occu raf ter the vehicleha s
be en washe dor driven throughde ep water.
Yo uthe nha ve todepre ssthe brakepedal
mor efir ml y.Ma inta inagre aterdi sta nce from
the vehiclein fro nt.
After drivin gon awe troa dor havin gthe vehi-
cle washe d,bra kefirml ywh ile pa ying atte ntion
to the trafficcond itions .Thi swi llwa rm upthe
bra kediscs ,the reb ydry ing themmor equ ickl y
and protecti ngthe magainst corr osion.
Li mite dbrak ingperf orman ceon salt-
treate droad s If
yo udri ve on salte droa ds,a laye rof saltres i-
du ema yfor mon the brakediscs and brake
pa ds.Thi scan resultin asigni ficantl ylo nge r
bra king dista nce.
R In ord erto pre vent anysaltbu ild-u p,apply
the brakes occa siona lly wh ile pa ying atte n-
tio nto the trafficcond itions .
R Ca ref ully de pre ssthe brakepedaland the
be ginning andend ofajou rney .
R Ma inta inagre aterdi sta nce tothe vehicle
ah ead.
Se rvi cing the brak es !
The
brakefluidlevel maybe too low, if:
R ifthe red brakewarning lamp lights upin
the instrument cluste rand
R youhe ar awa rning tone while the engine
is running
Ob serve additio nal warning mes sage sin the
mu ltifu nctio ndisp lay.
The brakefluidlevel maybe too low du eto
bra kepadwe aror leaki ng bra kelines .
Hav ethe brakesyste mche cked immed i-
ate ly.Co nsu ltaqu alifi ed speci alistwo rk-
sho pto arrange this.
! As
the ESP ®
sy ste mopera tes automa ti-
cal ly,the engineand theigniti onmu stbe
sw itch edoff (theSma rtKeymu stbe inpo si-
tio n0092 or0047 inthe igniti onlock), ifthe
el ectri cpa rki ng bra keistes ted onabra king
dy nam ome ter(ma ximum 10second s).
Braki ngtrigg eredau toma tically by ESP ®
may causeseve redamag eto the brakesys-
tem. All
checks andmaintenance workon the brake
sy stem mustbe carri edoutat aqu alifi ed spe -
cia list wor kshop .
Have brakepads insta lled and brakefluid
rep laced ataqu alifi ed spe cialist wor kshop .
If the brakesystem hasonly beensub ject to
mode rateloads, youshou ldtest thefuncti on-
al ity ofyour bra kes atregu larinterv als.
Informa tiononBAS (BrakeAssi st)(Ypage 57).
Merce des-Benz recom mends thatyouonly
hav ebra kepads/l inings insta lled on your vehi -
cle whichhav ebee nap prov edfor Merce des-
Benz vehicles orwhi chcorre spondtoan
equ ivalent quality stand ard.Brake pads/
li nings whichhav enot beenap prov edfor
Merce des-Benz vehicles orwhi chare not ofan
equ ivalent quality cou ldaffe ctyour vehi cle's
ope ratingsafety .
Merce des-Benz recom mends thatyouonly use
bra kefluidthat hasbeenspe cially ap prov ed
for your vehi clebyMerce des-Benz, orwhi ch
corre sponds toan equ ivalent quality stand ard.
Brake fluidwhi chhas notbeenap prov edfor
Merce des-Benz vehicles orwhi chisnot ofan
equ ivalent quality cou ldaffe ctyour vehi cle's
ope ratingsafety .
Hig h-perfo rmance brakesystem
(e xc ept Merc edes-AMG SLC 43) AMG
brakesystems aredesigne dfor hea vy
loa dsand havecompo nentswith corre spond-
ing prop erties.Thi smay leadto nois ewhe n
bra king. Thiswi lldep end on:
R Spee d
R Braki ngforce
R Ambi entcondi tions, e.g.tempe ratureand
hu mid ity
The wearofindi vidualcompo nentsofthe
bra kesystem, suchasthe brakepads/l inings
or bra kediscs, depends onthe individualdri v-
ing styleand operatingcondi tions.
For this reason, itis imp ossi ble to state amil e-
ag ethat willbe validund erallcircu mstance s.
An aggres sive driving stylewi lllea dto hig h
we ar. You canobta inmore informationonthis
from aqu alifi ed spe cialist wor kshop .
New andreplaced brakepads and discs only
rea chthei ropti mum braking effectafte rsev-
era lhu ndred kilometer sof dri ving. Compe n-
sate forthis byapplying grea terforce tothe
bra keped al.Kee pthis inmind ,and adaptyo ur 140
Dri
vin gtipsDri vin gand parking