2019 MERCEDES-BENZ SLC ROADSTER stop start

The
distance warningfunctionmay notgive
warnings inall critic alsituations. Thereisa
risk ofan accident .
Always paycareful attentiontothe traff ic
situation andbeready tobrake.
Always adaptyourspeed tosuit theprevail-
ing road andtrafficcondit ions. G
WARNIN
G
The distance warningfunctioncann ot
alway sclearly identify objectsand complex
traff icsituations.
In such cases, thedistance warningfunction
may:
R give anunnec essary warning
R not give awarning
There isarisk ofan accident .
Always paycareful attentiontothe traff ic
situation anddonot rely solely onthe dis-
tanc ewarning function.
Function Start ingataspeed ofapproximately 4mph
(7 km/ h),the distance warningfunctionwarns
you ifyou rapidly approach avehicle infront .
An inter mittentwarning tonewill then sound,
and the00BA distance warninglampwilllight
up inthe instr ument cluster.
X Brake immediately inorder toincrease the
distance fromthevehicle infront .
or X Take evasive action,provided itis safe todo
so.
Due tothe nature ofthe system, particularly
complicated butnon- critic aldriving conditions
may alsocause thesystem todisplay awarn-
ing.
With thehelp ofthe radar sensor system, the
distance warningfunctioncan detect obsta-
cles thatareinthe path ofyour vehicle foran
exten dedperiod oftime.
Up toaspeed ofapproximately 44mph
(70 km/ h),the distance warningfunctioncan
also react tostation aryobstacles, suchas
stopped orparked vehicles. Autonomous
brakingfunction If
the driver doesnotreact tothe distance
warning signalinacritic alsituation, Active
Brake Assist canassist withtheautonomous
braking function.
If the autonomous brakingfunctionrequires a
particularly highbraking force,prevent ative
passenger protectionmeasures (PRE-SAFE®
)
are activated simultaneously.
Vehicles withoutActiveDistance Assist
DISTRONIC: theautonomous brakingfunction
is availab lein the following speedranges:
R 4-65 mph (7-105 km/h)for moving
objects
R 4-31 mph (7-50 km/h )for stationa ry
objects
Vehic leswith Active Distance Assist
DI STRONIC: theautonomous brakingfunction
is ava ilable inthe followi ngspee dranges :
R 4-124 mph (7-200 km/h )for moving
objects
R 4-31 mph (7-50 km/h )for stationa ry
objects
Due tothe nature ofthe system ,parti cularly
compli catedbutnon-critical drivingconditio ns
may alsocaus ethe autonomous brakingfunc-
tion tointervene.
If the autonomous brakingfunction requiresa
parti cularlyhigh braki ngforce, preventa tive
pas senger protection measures(PRE-SAFE ®
)
are activa tedsimu ltaneo usly(Y pag e53).
Adaptive BrakeAssist Gene
ralinfo rmation
i Observ
ethe "Imp ortant safetynotes" sec-
tion (Ypag e57).
With thehelp ofAdapti veBrake Assist, thedis-
tance warning signalcan detect obstaclesthat
are inthe path ofyou rvehicl efor anextended
peri odoftime.
If Adapti veBrake Assist detects arisk ofcolli -
sion with thevehicl ein front, itcalcu latesthe
braki ngforce necessa ryto avoi dacolli sion. If
you applythe brakes forcefully,Adapti ve
Brake Assist willau tomatica llyincreas ethe
braki ngforce toaleve lsui tabl efor the traffic
conditio ns.
Adapti veBrake Assist providesbraki ngassi s-
tance inhaza rdoussitua tions atspee dsabo ve Driv
ingsafety systems
59Safety Z

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

tics
.Hav ethe brakesyste mche cked ata
qu alifi ed speci alistwo rksh op.
Ob serve inform ation reg arding indicator and
wa rning lamps (Ypage 210 )as wellas disp lay
mes sage s(Y page 185 ). AD
APTIVE BRAKE
i Ob
serve the "Impo rtantsafety note s"sec-
tio n(Y page 57).
ADAPT IVEBRAKE enhance sbra king safety and
off ers incr easedbra king comf ort.Inadditio n
to the braking functio n,ADAPT IVEBRAKE also
ha sthe HOLD functio n(Y page 151) andhill
sta rtas sist (Y page 120 ). Pro
tectionaga inst the ft Immo
bilizer
X To activ ate with the SmartK ey:rem ove
the Sma rtKeyfro mthe igniti onlock.
X To activ ate with KEYLES S-G O:switch the
ig niti onoff and open the driver 'sdo or.
X To dea ctivate :sw itch onthe igniti on.
The immob ilize rpre vents your veh iclefro m
be ing started withou tthe corr ectSma rtKey.
Wh enleav ing the vehicle, alwa ystake the
Sma rtKeywi th youand lock the vehicle. The
eng inecan bestarted byany one with ava lid
Sma rtKeytha tis left ins ide the vehicle.
i The
immob ilize ris alwa ysdeacti vated
wh en yousta rtthe engine.
In the eventtha tthe enginecann otbe star-
ted (yet the vehicle'sba ttery ischa rged),
the syste misnot opera tional .Co ntact an
au thor izedMe rced es-Benz Center orcal l
1-800 -FOR-MER Cedes(in the USA) or
1-800-38 7-0100(in Ca nad a). ATA
(anti-the ftalarm system) X
To arm: lock the vehiclewi th the Sma rtKey
or KEYL ESS-GO .
Indi cato rla mp 0043flashe s.The alarm system
is arm edafte rap pro xima tely15 seco nds.
X To switchoff :unl ock thevehiclewi th the
Sma rtKey orKEYL ESS-GO .
A vis ualand audible alarm istrig geredifthe
al arm system isarm edand youop en:
R ado or
R the vehiclewi th the mech anical key
R the trunk lid
R the hood
R the glove comp artment
R the stow agespa ceund erthe arm rest
X To
sto pthe alarm with the SmartK ey:
pre ssthe 0036 or0037 button onthe
Sma rtKey .
The alarm isstop ped.
or
X Inse rtthe Sma rtKey intotheigniti onlock.
The alarm isstop ped.
X To
sto pthe alarm using KEYLES S-GO :
gra spthe outsid edo or handl e.The Sma rt-
Key mustbe outsid ethe vehicle.
The alarm isstop ped.
or
X Pre ssthe Start/ Stopbutton onthe dash-
bo ard .The Sma rtKey mustbe inside the
veh icle.
The alarm isstop ped.
The alarm isnot stop ped, eve nif yo uclo sethe
op en door tha ttrig geredit,for exa mpl e.
If the alarm stayson for more than
30 seco nds,the Mer cedesme conne ct
eme rgency callsy stem automa tically send s
a mes sage tothe Custom erCe nter. 64
Pro
tectionagai nstthef tSafe ty

or
R you press theStart /Stopbutton onceon
vehicles withKEYLE SS-GO
When youclose thedriver's doorwiththeigni-
tion switched on,the steering wheelisalso
automatically movedtothe previously set
position.
The lastposition ofthe steering columnis
stored whenyouswitch offthe ignition or
when youstore thesettingwith thememory
funct ion(Ypage 95).
Crash- responsive EASY-EXIT featur e If
the crash-r esponsive EASY-EXI Tfeature is
triggered inan accident ,the steering column
will move upwards whenthedriver's dooris
opened. Thisoccurs irrespect iveofthe posi-
tion ofthe Smart Keyinthe ignition lock.This
makes iteasier toexit thevehicle andrescue
the occupant s.
The crash-r esponsive EASY-EXI Tfeature isonly
operational ifthe EAS Y-EXI T/ENTRY featureis
activated inthe on-board computer
(Y page 178). Mirr
ors Inside
rearview mirror X
Anti-glare mode:flickanti-glare lever0043
forwards orback. Exterior
mirrors
Adjust ingthe exterior mirrors G
WARNING
You could losecontrolofyour vehicle ifyou
do the following whiledriving:
R adjust thedriver's seat,head restraint ,
steering wheelormirrors
R fasten theseat belt
There isarisk ofan accident .
Adjust thedriver's seat,head restraint ,
steering wheelandmirror andfasten your
seat beltbefore startingthe engine. G
WARNING
The exter iormirror onthe front -passenger
side reduces thesize ofthe image. Visible
object sare actually closerthantheyappear.
This means thatyoucould misjudge thedis-
tanc efrom roadusers traveling behind,e.g.
when changing lane.There isarisk ofan
accident .
For this reason, alwaysmake sureofthe
actual distance fromtheroad users traveling
behind byglancing overyour shoulder. X
Make surethattheSmart Keyisin position
0047 or0048 inthe ignition lock.
X Press button 0043for the left exter iormirror
or button 0044for the right exteriormirror.
The indicator lampinthe correspon dingbut-
ton lights upinred.
The indicator lampgoesoutagain after
some time.Youcanadjust theselected 92
Mirr
orsSeats, steering wheelandmirrors

Problems
withthewindshield wipers Problem
Possible
causes/co nsequences and0050 0050
Solutions The
windshield wipers
are jammed. Leaves
orsnow, forexample, maybeobstruct ingthe windshield
wiper movement .The wiper motor hasbeen deactivated.
X For safety reasons, youshould remove theSmartK eyfrom the
ignition lock.
or X Switch offthe engine usingtheStart /Stopbutton andopen the
driver's door.
X Remove thecause ofthe obstruct ion.
X Switch thewindshield wipersbackon. The
windshield wipers
fail completely. The
windshield wiperdriveismalfunction ing.
X Select another wiperspeed onthe combination switch.
X Have thewindshield wiperscheckedataquali fiedspecialist
workshop. The
windshield washer
fluid from thespray noz-
zles nolonger hitsthe
cent erofthe wind-
shield. The
spray nozzlesare misaligned.
X Have thespray nozzlesadjusted ataquali fiedspecialist work-
shop. Windshield
wipers
105Lightsandwindshiel dwipers Z

USA
only
0043 Sets thetemperature (Ypage 111)
0044 Switches themaximum coolingMAXCOOL onoroff (Ypage 113)
0087 Sets theairdistribution (Ypage 112)
0085 Defrosts thewindshiel d(Y page 112)
0083 Switches coolingwithairdehumid ificationon/off(Ypage 110)
0084 Switches <0044004C00550010005500480046004C005500460058004F00440057004C0052
0051[ modeon/off (Ypage 114)
006B Sets theairflow (Ypage 112)
006C Switches therear window defroster on/off(Ypage 113) Notes
onusing theair-conditioning
system
Air-conditio ningsystem Below,
youcan find anumber ofnotes and
recommendations tohelp youusetheair-con-
ditioning systemoptimally .
R Switch oncooling withairdehumid ification
using the005A button. Theindicator lampin
the 005A button lightsup.
R Set thetemperature to72 ‡(22 †).
R Recommendation forairdistribution in
winter: setthe 009B and0061 settings.
Recommendation forairdistribution in
summer: setthe 009C setting. R
Only usethe"Windshie lddefrosting" func-
tion briefly untilthewindshiel dis clear
agai n.
R Only use<0044004C00550010005500480046004C005500460058004F00440057004C0052
0051[ modebriefly,e.g.
if there areunpleasa ntoutside odorsor
when inatunnel. Thewindows couldother-
wise fogup,since nofresh airisdrawn into
the vehicle in<0044004C00550010005500480046004C005500460058004F00440057004C0052
0051[ mode.
ECO start /stop function During
automatic engineswitch-off, thecli-
mate controlsystem onlyoperates ata
reduced capacity. Ifyou require fullclimate
cont rolcapacity, theECO start/st opfunction
can bedeactivated bypressing theECO but-
ton (Ypage 122). Overview
ofclimat econ trol systems
107Climat eco ntrol

ECO
star t/s top functi on Dur
ing auto maticeng ineswit ch-off,th ecli-
mat econ trol syst emonlyoper atesat a
reduc edcapac ity.Ifyou requi refull clim ate
con trol capac ity,theECO start /stopfun ction
can bedeac tivate dby pres singth eECO but-
to n(Y page 122). Oper
ating theclim atecont rolsys-
tem s Activ
ating/d eactivatingclim atecon-
tr ol
Gener alnot es When
theclim atecontrol isswit ched off,th e
air supply andaircirculat ionare also switched
off .The wind owscouldfog up.Ther efore,
swit choff clim atecontrol on lybrie fly
i Ac
tivate clim atecontrol prim arily usingth e
0058 button(Y page 111).
Air- condi tioningsyst em X
Turn theSm artKey toposit ion0048intheign i-
tio nloc k(Y page 118).
X To swit chon: turnairf low control 006B clock-
wise tothedesir edposit ion(excep tposit ion
0 )(Y page 106).
X To swit choff:tur nairf low control 006B coun -
te r-clo ckwise toposit ion0(Y page 106).
3-z one autom atic clim atecont rol X
Turn theSm artKey toposit ion0048intheign i-
tio nloc k(Y page 118).
X To swit chon: pres sth e0058 button.
The indicat orlamp inthe0058 buttonlight s
up. Airflow andairdist ribut ionare setto
auto maticmod e.
or
X Pre ssthe0078 button.
The indicat orlamp inthe0078 buttongoes
out .The prev iously selectedset tings are
res tored.
X To swit choff:pres sth e0078 button.
The indicat orlamp inthe0078 buttonlight s
up. Swit
ching cooling withairdeh umidi-
fica tion on/off
Gener alnot es If
you deac tivate the"Coolin gwith air-dehu-
midif ication"fun ction ,th eair inside theveh icle
will notbe coo led. Theairinside theveh icle
will also notbe dehum idified. The wind owscan
fog upmor equick ly.Ther efore, deac tivate the
coo ling with air-dehum idification function only
brie fly.
The "Coolin gwith airdehum idification"fun c-
tio nis on lyavailabl ewhen theeng ineisrun -
nin g.The airinside theveh icle iscoo ledand
dehum idifiedacc ording tothete mper ature
selec ted.
Con densation may dripfrom theunde rsideof
th eveh icle when itis in coo ling mod e.This is
no rm aland nota sign that there isamalf unc-
tio n.
Activ ating/d eactivating X
To act ivate: pres sth e005A or0056 but-
to n.
The indicat orlamp inthe005A or0056 but-
to nlight sup.
X To dea ctiv ate: pres sth e005A or0056 but-
to n.
The indicat orlamp inthe005A or0056 but-
to ngoes out.The "Coolin gwith airdehum id-
ific atio n"fun ction has adelayed switch-off
feat ure. 110
Oper
ating theclima tecontr olsyst emsClima tecontr ol

In
vehicle swith automa tictransmission,
engage positionsPand Ronly when the
vehicle isstationary .
Where possible,avoid spinning thedrive
wheel swhen pulling awayon slip pery roads.
You could otherwise damagethe drive train. Key
positio ns
Smart Key 005A
Toremove theSmartKey
0047 Power supplyfor some consumers, such
as the windshi eldwipers
0048 Ignition (powersupp lyfor allconsumers)
and drive positio n
0049 Tostart theengine
i The
SmartKey canbeturned inthe ignition
lock even ifit is not thecorrect SmartKey
for the vehicle .The ignition isnot switched
on. The engine cannot bestarted.
KEY LESS-GO Gene
ralnotes
Vehicle swith KEYLESS- GOare equi pped with
a SmartKey featuringanintegrated KEYLESS-
GO start function andadetachab leStart/St op
button.
The Start/St opbutton mustbeinserted inthe
ignition lockandtheSmartKey mustbeinthe
vehicle .
When youinsert theStart/St opbutton into
the ignition lock,thesystem needsapprox-
imatel ytwo seconds recognition time.Youcan
then usetheStart/St opbutton.
Pressing theStart/St opbutton several times
in successio ncorresponds tothe different keypositio
nsinthe ignition lock.Thisisonly the
case ifyou arenot depres singthebrake pedal.
If you depres sthe brake pedaland press the
Start/St opbutton, theengine startsimmedi -
ately .
A check whichperiodicallyestabl ishesaradi o
connection betweenthe vehicle andthe
SmartKey determines whetheravali dSmart-
Key isin the vehicle .This occurs, forexample ,
when starting theengine.
To start thevehicle withoutactively usingthe
SmartKey:
R the Start/St opbutton mustbeinserted in
the ignition lock.
R the SmartKey mustbeinthe vehicle .
R the vehicle mustnotbelocked withthe
SmartKey orKEYLESS- GO(Ypage 66).
Do not keep theSmartKey:
R with electronic devices,e.g.amobil ephone
or another SmartKey.
R with metall icobjects, e.g.coins ormetal
foil.
R inside metallicobjects, e.g.ametal case.
This canimpa irthe functionality ofthe KEY-
LESS- GOkey.
If you lock thevehicle withtheSmartKey's
remote controlorwith KEYLESS- GO,after a
short time:
R you willnot beableto switch onthe ignition
with theStart/St opbutton.
R you willnot beableto start theengine with
the Start/St opbutton untilthevehicle is
unlocked again.
The engine canbeswitched offwhil ethe vehi-
cle isin motion bypressing andholdi ngthe
Start/St opbutton forthree seconds. This
function operatesindepe ndently ofthe ECO
start/stop automaticengine switch-off func-
tion. 118
Drivi
ngDrivi ngand parking