2019 MERCEDES-BENZ SLC ROADSTER warning light

one
ofthe front sidewindows duringtheclos-
ing process, theside window opensagain
automatically. Duringthemanual closingproc-
ess, theside window onlyopens againauto-
matically afterthecorrespon dingswitch is
released. However, theautomatic reversing
feature isonly anaid and does notrelieve you
of the responsibility ofpaying attentionwhen
closing aside window. G
WARNING
The reversing featuredoesnotrespond:
R to soft, lightandthin object s,e.g. fingers
R over thelast 1/6 in(4 mm) ofthe closing
movement
R while adjusting
R when closing theside window againman-
ually immediately afterautomatic revers-
ing
This means thatthereversing featurecan-
not prevent someone beingtrapped inthese
situations. Thereisarisk ofinjury.
Make surethatnobody parts areinclose
proximity duringtheclosing procedure. If
someone becomestrapped,pressthe
switch toopen theside window again. Opening
andclosi ngthe side win-
dows inthe front
The switches forthe front sidewindows are
located onthe driver's door.There isalso a
switch forthe front -passenger sidewindow on
the front -passenger door.
The switches onthe driver's doortakeprece-
dence. 0043
Left
0044 Right
X Turn theSmart Keytoposition 0047or0048 in
the ignition lock.
X To open manua lly:press andhold thecor-
responding switch.
X To open fully: press theswitch beyond the
pressure pointandrelease it.
Automat icoperation isstart ed.
X To close manua lly:pull thecorrespon ding
switch andhold it.
X To close fully:pulltheswitch beyond the
pressure pointandrelease it.
Automat icoperation isstart ed.
X To interr uptautom aticoperat ion:press
or pull thecorrespon dingswitch again.
You cancont inue tooperate theside windows
after youswitch offthe engine. Thisfunct ionis
availa bleforuptofive minutes oruntil the
driver's orfront -passenger doorisopened. Opening
andclosin gall side win-
dows
Using theswitch onthe center con-
sole G
WARNING
While opening theside windows, bodyparts
in the closing areacould become trapped.
There isarisk ofinjury.
Make surethatnobody parts areinclose
proximity duringtheclosing procedure. If
somebody becomestrapped,releasethe
switch orpress theswitch downtoopen the
side window again. 76
Side
window sOpening andclosing

has
been setcorrect ly.Ifthis isnot the
case, repeat thesteps above. Problems
withtheside window s G
WARNING
If you close aside window againimmediately afterithas been blocked orreset, theside win-
dow closes withincreased ormaximum force.Thereversing featureisthen notactive. Partsof
the body could betrapped inthe closing areainthe process. Thisposes anincreased riskof
injury oreven fatalinjury.
Make surethatnoparts ofthe body areinthe closing area.Tostop theclosing process,
release theswitch orpush theswitch againtoreopen theside window. Problem
Possible
causes/co nsequences and0050 0050
Solutions A
side window cannot
be closed because itis
blocked byobject s,e.g.
leaves inthe window
guide. X
Remove theobject s.
X Close theside window. A
side window cannot
be closed andyoucan-
not see thecause. If
aside window isobstructed duringclosing andreopens again
slightly:
X Immediately afterthewindow blocks,pullthecorresponding
switch againuntiltheside window hasclosed.
The side window isclosed withincreased force.
If aside window isobstructed againduring closing andreopens
again slightly:
X Immediately afterthewindow blocks,pullthecorresponding
switch againuntiltheside window hasclosed.
The side window isclosed without theautomatic reversingfea-
ture. The
side windows can-
not beopened orclosed
using theconven ience
opening/closing fea-
ture. The
SmartKey batteryisdischarged ornearly discharged.
X Check theSmartKey battery(Ypage 69)and replace itifneces-
sary (Ypage 69). Roof
Import
antsafety notes G
WARNING
If you donot fully open/close thesoft top,
the soft- tophydrau licsdepressurize aftera
short time.Thiscauses thesoft toptolower
unexpectedly andmay cause youorothers
to be trapped. Thereisarisk ofinjury. Always
openorclose thesoft topcom-
pletely. G
WARNING
Closing theroof manually isacomplicated
and techn ically demanding procedure,which
requires alot ofstrengt h.You orothers can
become trapped. Thereisarisk ofinjury. 78
RoofOpening
andclosing

Problems
withtheseat heating Problem
Possible
causes/co nsequences and0050 0050
Solutions The
seat heating has
switched offprema-
turely orcannot be
switched on.The vehi-
cle's electrical system
voltage istoo low
because toomany elec-
trical consumers are
switched on. Switch
offelectrical consumers thatyoudonot need, suchasthe
rear window defroster orinterior lighting.
Once thebattery issufficiently charged,switchonthe seat heating
again. AIRSCA
RF
Setting headlevelheating (AIRSCARF) G
WARNING
When AIRSCARF isswitched on,very hotair
can flow from thevent sin the head
restraint s.This could result inburns inthe
immediate vicinityofthe airvent s.There isa
risk ofinjury.
Reduce theheater output beforeitbecomes
too hot. The
AIRSCARF functionwarms thehead and
neck areaofvehicle occupants withwarm air.
The warm airflows outofthe holes inthe head
restraint s.
The three redindicator lampsinthe button
indicate theheating levelyouhave selected.
X Ensure thattheSmartK eyisin position 0048
in the ignition lock.
X To switch on:press button 0043.
Three redindicator lampsinthe button light
up. The blower startsupafter apreheating
phase ofseven seconds. X
Press button 0043repeatedly untilthedesired
heating levelisset.
X To switch off:press button 0043repeatedly
until allthe indicator lampsgoout.
i The
blower continues running forseven
seconds tocool down theheating elements.
i If
the battery voltage istoo low, AIRSCARF
may switch off.
Problems withAIRSCA RF AIRSCARF
hasswitched offprematurely orwill
not switch on.The vehicle's electrical system
voltage istoo low because toomany electrical
consumers areswitched on.
X Switch offelectrical consumers thatyoudo
not need, suchasthe rear window defroster
or interior lighting.
X Switch onAIRSCARF again. Steering
wheel Import
antsafety notes 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. Steering
wheel
89Seats,steering wheeland mirrors
Z

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

Emis
sioncontrol G
DANG
ER
Combus tioneng inesemit poiso nous
exh aust gases suchas car bon mon oxide.
In halin gth ese exhaust gases ishaz ardo usto
healt hand canresult inpoiso ning.Ther eis a
risk offat alinj ury. Ther efore, nev erleave the
eng inerunningan enc lose dspac ewith out
adequat even tilatio n.
Cert aineng inesyst ems aredesig nedtokeep
th eleve lof poiso nous com ponentsin exh aust
fum eswith inlegal limits.
Thes esyst ems onlywork atpeak efficie ncyif
th ey are serviced exac tlyinacc ordanc ewith
th eman ufacturer'sspec ificatio ns.Always have
work ontheeng inecarried outataqualifi ed
spec ialist workshop.Mer cedes-Ben zrec om-
men dsthat you useanauth orizedMer cedes-
Ben zCent erfor this purpo se.Inpart icular ,
work relevantto safe tyor on safe ty-relat ed
syst ems must becar ried outataqualifi edspe-
ciali stwork shop.
The enginesettings must notbe chang ed
unde rany circum stanc es.Furtherm ore,all
spec ificservicework must becar ried outat
reg ular interv als and inacc ordanc ewith the
Mer cedes-Ben zser vicerequi rements.De tail s
can befoun din theMain tenan ceBoo klet. ECO
displa y
The ECO displayshow syou how economic al
your drivingstyle is.The ECO displayassis ts
you inach ievin gth emos teco nomic aldriv ing
st yle fortheselec tedset tings and prev ailing
con dition s.Your drivingstyle can significant ly
inf luen cetheveh icle'scon sump tion. 0043
Accel erat ion
0044 Coast ing
0087 Con stant
0085 Add ition alran geach ieve d Rang
e0085 isshow nunde rBon usfr. Start Bon
usfr. Start
and represen tstheaddit ionalran geach ieve d
sin ce thebegin ningof thejo urn eyasares ult
of an adapt eddriv ingstyle.
If th efuel levelhas dropped intoth eres erve
ran ge, theFue lLow Fue
lLow message isshow nin the
mult ifunction displ ayinstead ofran ge0085. The
00B6 warninglamp intheins trumen tclus ter
also lightsup (Ypage 213).
The ECO displaycon sistsof three sections,
with aninnerand outerarea. Thesections cor -
res pon dto thefoll owin gth ree categor ies: 0043
Acceler
ation (eval uatio nof all
acc eler ationpro ces ses) :
R theout erarea fillsupand the
inn erarea lightsup gre en: mod er-
ate acceler ation,espe ciallyat
high erspee ds
R theout erarea empt iesand the
inn erarea isgray: sportyacc eler -
atio n 0044
Coast
ing(eval uatio nof all dec eler -
atio npro ces ses) :
R theout erarea fillsupand the
inn erarea lightsup gre en: antici-
pat ory driving,ke epin gyour dis-
tan ceand early release ofthe
acc eler ator.The vehicle can
coas twith outuse ofthebrak es.
R theout erarea empt iesand the
inn erarea isgray: frequen theav y
brak ing 0087
Const
ant(continuo usevaluat ion
ove rth eent irejourn ey):
R theout erarea fillsupand the
inn erarea lightsup gre en: con-
st ant spee dand avoid anceof
unn ecessar yacc eler ationand
dec eler ation
R theout erarea empt iesand the
inn erarea isgray: fluctuat ionsin
spee d The
three innerareas displaythecur ren tdriv -
ing style and light upgre enasares ult ofapar-
tic ularly economic aldriv ingstyle. Depen ding
on thedriv ingsituatio n,up totwo areas may
light upsimul taneously.
At thebegin ningof thejo urn ey, theth ree
out erareas areempt yand fillup asares ult of 138
Driv
ingtipsDriv ingand parking

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

Storing
orcalling upaspeed G
WARNING
If you callupthe stored speedanditdiffers
from thecurrent speed,thevehicle acceler-
ates ordecelerates. Ifyou donot know the
stored speed, thevehicle couldaccelerate
or brake unexpect edly.There isarisk ofan
accident.
Pay attent iontothe road andtraffic condi-
tions before callingupthe stored speed. If
you donot know thestored speed, storethe
desired speedagain.
X Briefly pullthecruise controllever towards
you 0087.
X Remove yourfootfrom theaccelerator
pedal.
The first time cruise controlisactivated, it
stores thecurrent speedorregulates the
speed ofthe vehicle tothe previously stored
speed.
Setting aspeed G
WARNING
Keep inmind thatitmay take abrief
moment untilthevehicle hasmade thenec-
essary adjustment s.
Incr ease ordecrease thesetvehicle speed
to avalue thattheprevailing roadcondition s
and legal speed limitspermit. Otherwise,
sudden andunexpect edacceleration or
deceleration ofthe vehicle couldcause an
accident and/orserious injurytoyou and
others.
X To
adj ust the setspeed in1mph incre-
ments (1km/h increments): brieflypress
the cruise controllever up0043 tothe pres-
sure point forahigher speed, ordown 0085
for alower speed.
Every timethecruise controllever is
pressed upordown, thelast speed stored is
increased orreduced.
X To
adj ust the setspeed in5mph incre-
ments (10km/h increments): briefly
press thecruise controllever up0043 past the pressure
pointforahigher speed, or
down 0085for alower speed.
Every timethecruise controllever is
pressed upordown, thelast speed stored is
increased orreduced.
i The
speed indicated inthe speedometer
may differ slightly fromthespeed stored.
i Cruise
controlisnot deactivated ifyou
depress theaccelerator pedal.Forexample,
if you accelerate brieflytoovertake, cruise
cont roladjusts thevehicle's speedtothe
last speed stored afteryouhave finished
overtakin g.
Deactivating cruisecontrol There
areseveral waystodeactivate cruise
cont rol:
X Briefly pressthecruise controllever for-
wards 0043.
or X Brake.
Cruise controlisautomatically deactivatedif:
R you engage theelectric parking brake
R you aredriving atless than 20mph
(30 km/h)
R ESP ®
interven esoryou deactivate ESP®
R on vehicles withmanual transmission,you
shift toagear thatistoo high, andasa
result theengine speedistoo low
R Brake Assist interven es
R you move outoftransm issionposition 005B
If cruise controlisdeactivated, youwillhear a
warning tone.Youwillsee theCruise Con‐ Cruise
Con‐
trol Off trol
Offmessage inthe multifunct iondis-
play forapproximately fiveseconds.
i When
youswitch offthe engine, thelast
speed stored iscleared. Driving
systems
143Drivingandparking Z

Warning
displays Warni
ngdisp layforthe front area
0043 Segments onthe left-ha ndside ofthe vehi-
cle
0044 Segments onthe right-ha ndside ofthe
vehicl e
0087 Opera tional readiness segme nts
The warning displaysshow thedista nce
betwe enthe sensors andtheobsta cle.The
wa rning displayforthe front areaisloca tedon
the dashboa rdabo vethe center airvents. The
wa rning displayforthe rear area isloca ted
betwe enthe rollbars .
The warning displayforeach sideofthe vehi-
cle isdivi ded into fiveyellow and tworedseg-
ments. Ifyel low opera tional readiness seg-
ments 0087light up, Parki ngAssist PARKTR ONIC
is opera tional.
The selected transmiss ionposi tion andthe
dire ction inwhi chthe vehicl eis roll ing deter-
mine whichwarning displayisactive whenthe
engine isrunning.
Automati ctransmiss ion: Transmissi
onposi -
tion Warning
display 005B
Front
areaactive 005E,
005Corthe vehi-
cle isroll ing back-
wa rds Rea
rand front areas
active 005D
No
area sactive One
ormore segme ntslight up asthe vehicl e
app roache san obsta cle,depe nding onthe
vehicl e'sdista ncefrom theobsta cle.Inadd i-
tion, warning tones areissu ed.
When thedista ncetothe obsta cleissuffi cient,
you willhea ran intermittent warning tone. The
shorter thedista ncetothe obsta cle,the
shorter thefrequ ency ofthe intermittent warn-
ing tones become s.When theminimu mdis-
tance isreache d,you heara continuou swa rn-
ing tone.
De activati ng/activati ngParking Assist
PARK TRONIC 0043
Deactiva tes/activa tesParki ngAssist
PARKTR ONIC
0044 Indica torlam p
If indica torlam p0044 lights up,Parki ngAssist
PARKTR ONICisdea ctivated. ParkingGuida nce
is als odea ctivated.
i Parki
ngAssist PARKTR ONICisau tomati-
call yactiva tedwhe nyou turn theSmartKey
to posi tion 0048inthe igniti onlock. Driv
ingsyste ms
155Drivingand parking Z