2019 MERCEDES-BENZ SLC ROADSTER brake sensor

Jump
start ing .................................2 60
Overvi ew....... ................................. 257
Rep lacing .......................................260
Belt
see Seat belts
Belt warni ng....... .................................. 42
Blin dSpot Assist
Activating/d eactivating .................175
Displ aymessa ge....... ..................... 198
Notes/fu nction..............................163
Blueto oth®
Searchi ngfor amobi lephone ........221
Searchi ngfor amobi lephone
(de vice mana ger)........................... 222
see also Digita lOpera tor'sMan-
ua l....... .............. .............................217
Tel epho ny....... ...............................221
Brake AssistSyste m
see BAS (Brake AssistSystem)
Brake fluid
Displ aymessa ge....... ..................... 188
Notes .............................................301
Brake forcedistributi on
see EBD (electronic brakeforce
dis tribu tion)
Brake lamps
Adap tive....... ....................................60
Dis play mes sage ............ ................193
Brake s
ABS ............ ........................ ..............57
Ada ptive Bra keAssi st............ .......... 59
BAS ............ ............ ..........................57
Bra kefluid(no tes)............ .............301
Displ aymessa ge....... ..................... 183
EBD .............. ....................................63
High -perfo rmance brakesystem ....140
Impo rtant safety notes ............ ......139
Mai ntenance .................................. 140
Pa rking brake............ ....................135
Ri ding tips............ ..........................139
Wa rning lamp ............ .....................210
Breakdo wnassi stanc e
Re flective safety jacket ............ ......251
Whe rewillIfind...? ............ ............ 251
see Flattire
see Towingaway Brightn
esscontrol (instrumen t
cl uster lightin g)........... ........................32
Bulbs
see Repla cing bulbs C
Cal ifornia
Impo rtant notice forreta ilcus-
tomers andlessee s........... ...............24
Cal ling up amalfun ction
see Disp laymess ages
Car
see Vehi cle
Care
Carwa sh ........... .............................246
Exhau stpip e........... .......................250
Exterior lights ....... ......................... 249
Matte finish................................... 248
Notes .............................................245
Pai nt....... ....................................... 247
Pow erwa sher ................................247
Rea rview camera .......................... 250
Sensors ......................................... 250
Was hing byhand ........................... 246
Whee ls....... ....................................249
Windo ws....... ................................. 249
Wip erbla des ....... ........................... 249
CD
see also Digita lOpera tor'sMan-
ua l....... ...........................................217
CD player (on-bo ardcomputer) ........173
Ce nter conso le
Lowe rsection .................................. 35
Uppe rsection .................................. 34
Ce ntral locking
Automa ticlocking (on-board
compu ter)....... ...............................178
Locking/u nlocking(SmartKe y)....... .66
Cha nging bulbs
Sid emark erlamps (rear)... ............ 103
Child
Rest raintsyst em.............................. 55
Child seat
For ward- facing restraint system...... 56
On thefron t-passe nger seat ............ 56
Rearwar d-facin gres traint system.... 56 6
Index

Protecting
theenvironment General
notes H
Environmental
note
Daimler's declaredpolicyisone ofcompre-
hensive environm entalprotect ion.
The object ivesareforthe natural resources
that form thebasis ofour existen ceon this
planet tobe used sparingly andinamanner
that takes therequirements ofboth nature
and humanity intoaccount.
You toocan help toprotect theenvironm ent
by operating yourvehicle inan environm en-
tally responsible manner.
Fuel consumpt ionand therate ofengine,
transm ission,brakeandtirewear areaffec-
ted bythese factors:
R operating conditionsof your vehicle
R your personal drivingstyle
You caninfluence bothfactors. Youshould
bear thefollowing inmind:
Operating conditions:
R avoid shorttripsasthese increase fuel
consumpt ion.
R alwa ysmake surethatthetire pressures
are correct .
R do not carry anyunnecessary weight.
R remove roofracks onceyounolonger
need them.
R aregularly servicedvehiclewillcont ribute
to environm entalprotect ion.You should
therefore adheretothe service intervals.
R alwa yshave service workcarried outata
quali fiedspecialist workshop.
Personal drivingstyle:
R do not depress theaccelerator pedal
when startin gthe engine.
R do not warm upthe engine whenthevehi-
cle isstationary.
R drive carefully andmaintain asafe dis-
tance fromthevehicle infront .
R avoid frequent, suddenacceleration and
braking. R
change gearingood timeanduseeach
gear onlyupto00C3 ofits maximum engine
speed.
R switch offthe engine instationary traffic.
R keep aneye onthe vehicle's fuelcon-
sumption. Environmental
concerns andrecom-
mendat ions
Wherever theoperating instructionsrequire
you todispose ofmaterials, firsttrytoregen-
erate orre-use them.Observe therelevant
environm entalrulesandregulations whendis-
posing ofmaterials. Inthis way youwillhelp to
protect theenvironm ent. Genuine
Mercedes-Benz parts H
Environmental
note
Daimler AGalso supplie srecondit ioned
major assemblies andparts which areofthe
same qualityas new parts. Theyarecovered
by the same Limited Warranty entitlements
as new parts.
! Air
bags andEmergen cyTensioning Devi-
ces, aswell ascont rolunits andsensors for
these restraint systems, maybeinstalled in
the following areasofyour vehicle:
R doors
R door pillars
R door sills
R seats
R cock pit
R instrumen tcluster
R cent erconsole
Do not install accessories suchasaudio sys-
tems inthese areas. Donot carry out
repairs orwelding. Youcould impair the
operating efficiency ofthe restraint sys-
tems.
Have aftermark etaccessories installedata
quali fiedspecialist workshop.
You could jeopardize theoperating safetyof
your vehicle ifyou useparts, tiresandwheels
as well asaccessories relevanttosafety which Genuine
Mercedes-Benz parts
23Introdu ction Z

G
WARNING
If BAS ismalfu nctioning, thebraki ngdis-
tance inan emerge ncybraki ngsitua tionis
increas ed.There isarisk ofan accide nt.
In an emerge ncybraki ngsitua tion, depre ss
the brake pedalwith fullforce. ABSprevents
the whee lsfrom locking.
Braking X
Keep thebrake pedalfirmly depresseduntil
the emerge ncybraki ngsitua tionisover.
ABS prevents thewhee lsfrom locking.
The brakes willfunction asusu alonce you
rele ase thebrake pedal.BAS isdea ctivated. Ac
tive Brake Assist
Gene ralinfo rmation i
Observe
the"Impo rtantsafety notes" sec-
tion (Ypag e57).
Active BrakeAssist consists ofadista nce
war ning function withanautonomous braking
function andAdapti veBrake Assist.
Active BrakeAssist canhelp youtominimi ze
the risk ofacolli sion with thevehicl ein front
or redu cethe effects ofsuch acolli sion.
If Active BrakeAssist detects thatthere isa
risk ofcolli sion, youwillbe war ned visually
and acou stical ly.If you donot react tothe vis-
ua lcolli sion warning orthe warning tone,
au tonomous brakingcan beinitia tedincritical
situa tions. Ifyou applythe brake yourself ina
critical situation, Adapti veBrake Assist ofthe
Active BrakeAssist system supports you.
Important safetynotes In
particu lar,the detection ofobstacl escan be
impa iredif:
R there isdirt onthe sensors oranythi ngelse
covering thesensors
R there issnow orhea vyrain
R there isinterference byother radarsource s
R there arestrong radarreflectio ns,forexam-
ple inparki nggara ges
R anarrow vehicleis traveli nginfront, e.g.a
motorbike R
avehicl eis traveli nginfront onadiffer ent
line
R you aredrivi nganew vehicl eor servici ngon
the Active BrakeAssist system hasjust
been carrie dout
Observe theimporta ntsafety notesinthe
"Brea king-in notes"section (Ypag e117).
Follo wing dama getothe front endofthe vehi-
cle, have theconfigu rationandopera tionof
the rada rsensor checked ataqua lified spe-
cial istworksho p.This alsoapp liesto colli sions
at slow speedswhere thereisno visib ledam-
age tothe front ofthe vehicl e.
Ac tivating /deactivating Active
BrakeAssist isau tomatical lyactive
after switching onthe ignitio n.
You canactiva teor dea ctivate ActiveBrake
Assist using the on-board computer
(Y pag e175) .When deactivated, thedista nce
war ning function andtheautonomous braking
function arealsodea ctivated.
If Active BrakeAssist isdea ctivated, the00D4
symb olapp ears inthe assi stance graphicdis-
pla y.
Di stance warningfunctio n Gene
ralinfo rmation
The dista ncewarni ngfunction canhelp youto
minimi zethe risk ofafront-end collision with a
vehicl eahea dor redu cethe effects ofsuch a
colli sion. Ifthe dista ncewarni ngfunction
detects thatthere isarisk ofacolli sion, you
wil lbe warne dvisu allyand acou stical ly.
Important safetynotes
i Observe
the"Impo rtantsafety notes" sec-
tion fordrivi ngsafety systems (Ypag e57). G
WARNING
The dista ncewarni ngfunction doesnot
react:
R to peop leor anima ls
R to oncoming vehicles
R to crossing traffic
R when cornering 58
Drivi
ngsafety systemsSafety

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

4
mph (7km/h) .It use srada rsensor technol-
ogy toasse ssthe traffic situation.
Up toaspee dof app roxima tely155 mph
(250 km/h) ,Adap tiveBrake Assist iscapa ble
of reacti ngtomoving objects thathave
al read ybee ndetected assuch atlea stonce
over theperiodofobse rvatio n.
Up toaspee dof app roxima tely44mph
(70 km/h) ,Adap tiveBrake Assist reacts to
stationa ryobsta cles.
If Adap tiveBrake Assist demandsparti cularly
high braki ngforce, preventative passenger
protectio nmeas ures(PRE-SAFE ®
)are activa -
ted simu ltaneo usly(Y pag e53) .
X Keep thebrake pedaldep resse duntil the
emerg encybrakingsitua tionisover.
ABS preve ntsthe whe elsfrom locking.
The brake swil lwork normal lyaga inif:
R you release thebrake pedal
R there isno longe rany dange rof acoll ision
R no obsta cleisdetected infront ofyou rvehi -
cle
Adap tiveBrake Assist isthen deactivated .
Important safetynotes G
WARNING
Adap tiveBrake Assist cannot alwa ysclea rly
ide ntify objects andcompl extraffic situa-
tions.
In such cases ,Adap tiveBrake Assist can:
R intervene unnecessarily
R not intervene
There isarisk ofan accid ent.
Alwa yspay carefu lattention tothe traffic
situa tionandberead yto brake .Termi nate
the interventio nin anon-critical drivingsit-
ua tion. G
WARNING
Adap tiveBrake Assist doesnotreact:
R to peop leor anima ls
R to oncoming vehicles
R to crossi ngtraffic
R whe ncornering As
aresu lt,the Adap tiveBrake Assist may
not intervene inallcritica lconditio ns.There
is arisk ofan accid ent.
Alwa yspay carefu lattention tothe traffic
situa tionandberead yto brake .
Alwa ysada ptyou rspee dto sui tthe preva il-
ing road andtraffic conditio ns.
Due tothe nature ofthe system, particularly
compl icated butnon-critical drivingconditio ns
may also cau seAdap tiveBrake Assist tointer-
vene.
If Adap tiveBrake Assist isnot available due to
a mal function inthe rada rsensor system, the
brake system remai nsava ilable with fullbrake
boos tingeffect andBAS. Adaptive
brakelights
i Obse
rvethe "Imp ortant safetynotes" sec-
tion (Ypag e57) .
If you brake sharplyfrom aspee dof more than
50 km/h orifbraki ngisassi sted byBAS or
Brake Assist withCross-Traffi cAssist, the
brake lamps flash rapi dly.In this way,traffic
travel ingbehi ndyou iswa rned inan even
more noticea blemanner.
If you brake sharplyfrom aspee dof more than
70 km/h toastandsti ll,the haza rdwa rning
la mps areactiva tedautomatica lly.If the
brake sare appliedaga in,the brake lamps light
up continuou sly.The haza rdwa rning lamps
swi tch offautomatica llyifyou travel faster
than 10km/h. Youcanalso swi tch offthe
haza rdwa rning lamps using the haza rdwa rn-
ing button (Ypag e99). ESP
®
(E lec tronic StabilityProgram)
Gene ralnote s i
Obse
rvethe "Imp ortant safetynotes" sec-
tion (Ypag e57) .
ESP ®
monitors drivingstabi lityand traction,
i.e. pow ertransmis sionbetwe enthe tires and
the road surface.
If ESP ®
detects thatthevehi cleisdevi ating
from thedirection desiredbythe drive r,one or
more wheelsare brake dto stabi lizethevehi -
cle. The engine outputis also modi fiedtokeep 60
Driv
ingsafety systemsSafety

Selec
tingtheComfort orEcon omy
drive progra ms In
the Comfort andEcono mydrive programs,
the driving characterist icsofyour vehicle are
more comfort able.Select oneofthese drive
programs ifyou favor amore comfort abledriv-
ing style. Alsoselect thesedriveprograms
when driving fastonstraight roads,e.g.on
straight stretches ofhighway .
In urban traffic andstop-st arttraffic, drivepro-
gram Cis recommen ded.
X Press DYNAMI CSEL ECT button 0043repeat-
edly until theComfort orEcono mydrive
program isselected.
Selec tingSport mode The
firmer settingof the suspension tuningin
the Sport driveprogram ensuresevenbetter
cont actwith theroad. Select thisdrive pro-
gram when employing asporty driving style,
e.g. onwinding countryroads.
X Press DYNAMIC SELECT button 0043asmany
times asnecessary untiltheSport drive
program isselected.
Selec tingSport Plusmode The
firmer suspension settingsinthe Sport
Plus drive program ensureevenbetter contact
with theroad. Select thismode whenemploy-
ing asporty driving style,e.g.onwinding coun-
try roads or,ideall y,when driving onclosed
race circuits.
X Press DYNAMIC SELECT button 0043repeat-
edly until theSport Plusdrive program is
selected. Parking
AssistPARKTRONIC
Import antsafety notes Parking
AssistPARKTRONIC isan electron ic
parking aidwith ultrasound. Itmonitor sthe
area around yourvehicle usingsixsensors in
the front bumper andfour sensors inthe rear
bumper. ParkingAssistPARKTRONIC visually
and audib lyindicates thedistance between
your vehicle andanobject .
Parking AssistPARKTRONIC isonly anaid. Itis
not areplacement foryour atten tiontoyour
immediate surroundings. Youarealwa ys
responsible forsafe maneuvering, parkingand
exiting aparking space.Makesurethatthere
are nopersons, animalsorobject sin the
maneuvering areawhen youaremaneuvering
or parking.
! When
parking, payparticular attentionto
object sabove orbelow thesensors, suchas
flower potsortrailer drawbars.
PARKTRONIC doesnotdetect suchobject s
when theyareinthe immediate vicinityof
the vehicle. Youcould damage thevehicle
or the object s.
The sensors maynotdetect snowandother
object sthat absorb ultrasonic waves.
Ultrasonic sourcessuchasan automatic car
wash, thecompressed-air brakesonatruck
or apneumatic drillcould cause
PARKTRONIC tomalfunction .
PARKTRONIC maynotfunct ioncorrect lyon
uneven terrain.
Parking AssistPARKTRONIC isactivated auto-
matically whenyou:
R switch onthe ignition
R shift thetransm issiontoposition 005B,005Eor
005C
R release theelectric parking brake
Parking AssistPARKTRONIC isdeactivated at
speeds above11mph (18km/h). Itis reacti-
vated atlower speeds. Driving
systems
153Drivingandparking Z

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions The
yellow 0024warninglamp lightsup and thered 0049 (USA
on ly) or0024 (Canadaonly) ind icat orlamp flashes .
It is no tpos sibleto apply theelec tric park ingbrak eman ually.
X Sh ift thetrans mis sion topos ition 005D.
X Vis itaqualif iedspecialistwor kshop . 0027
(USAon ly)
004D (Canadaonly)
Che ckBrakeFluid Che
ckBrakeFluid
Lev el Lev
el The
reisno ten ough brakefluid inthebrak efluid reservoir.
In addit ion,th e0027 (USAon ly) or004D (Canadaonly) warn ing
lamp lightsup intheins trumen tclus terand awarn ingtone soun ds.
G WAR
NING
The brak ingeffectmay beimp aire d.
The reisaris kof an acc iden t.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.Do notco ntinu edri vin g
und erany circum stanc es.
X Se cur eth eveh icleagain strol lingaway (Ypage 134).
X Con sult aqualif iedspecialistwor kshop .
X Do notadd brak efluid .This does notco rrec tth emalf unction . 0026
Che ckBrakePad Che
ckBrakePad
Wea r Wea
r The
brak epads /linin gshav ereac hedtheir wear limit.
X Vis itaqualif iedspecialistwor kshop . PRE
-SAFEInopera‐ PRE
-SAFEInopera‐
tiv eSee Opera‐ tiv
eSee Opera‐
tor 'sManual tor
'sManual Im
por tantfun ction sof PRE -SAF E®
hav efail ed. Allot her occup ant
saf etysyst ems ,e. g. air bags ,rem ainavail able.
X Vis itaqualif iedspecialistwor kshop immediat ely. Act
ive Brake Act
ive Brake
Ass ist Functions Ass
ist Functions
Cur rently Limited Cur
rently Limited
See Operator'sMan ‐ See
Operator'sMan ‐
ual ual Ac
tive Brake Assis tis tempo rarily ino per ative.
Pos siblecaus esare:
R theradar sensor syst emistempo rarily ino per ative, e.g. due to
elec tromag netic radi ation emi tted bynearby TVorradi ostati ons
or other sour cesof elec tromag netic radi ation
R thesyst emisout side theoper ating tempe rature range
R theon -boar dvol tag eis toolow
Whe nth ecaus esstate dabov eno longer apply, thedisp laymes sage
disap pears.
Ac tive Brake Assis tis oper ationalagain .
If th edisp laymes sage does notdisap pear:
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 134).
X Rest arttheen gin e. 188
Disp
laymes sage sOn -boar dcomp uter anddi sp lay s

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Act
ive Brake Act
ive Brake
Ass ist Functions Ass
ist Functions
Lim itedSee Opera‐ Lim
itedSee Opera‐
tor 'sManual tor
'sManual Ac
tive Brake Assis tis unav ailable duetoamalf unction .
X Vis itaqualif iedspecialistwor kshop . Rad
arSensors Rad
arSensors
Dir tySee Opera‐ Dir
tySee Opera‐
tor 'sManual tor
'sManual The
radar sensor syst emismalf unction ing .
Pos siblecaus esare:
R dir ton sen sors
R heav yrain orsnow
R when drivin gon inter- urban roadswithout traff icor infras truct ure,
e. g. indes ert-like area s
At least onedri vin gsyst emordrivin gsaf etysyst emismalf unction -
ing oristempo rarilyunav ailable :
R Ac tive Brake Assis t
R Ac tive Distanc eAs sis tDI ST RONI C
On ce thecaus eof thepro blem isno longer presen t,th edri vin gand
dri ve saf etysyst ems willbeavail able again .The displaymes sage
disap pears.
If th edisp laymes sage does notdisap pear:
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 134).
X Swi tchoff theen gin e.
X Clean allsen sors(Y page 250).
X Rest arttheen gin e.
The displaymes sage disap pears. 0075
SRS Malfunction SRS
Malfunction
Ser viceReq uir ed Ser
viceReq uir ed The
restrain tsyst emismalf unction ing .The 0075 warninglamp also
ligh tsup intheins trumen tclus ter.
G WAR
NING
The airbags orEm erg ency Ten sion ingDevic es may either betrig-
ger eduninten tion ally or,intheeve ntofan acc iden t,may notbe
tr igge red.
The reisan increas edriskof injury.
X Vis itaqualif iedspecialistwor kshop immediat ely.
Fur ther inform ation about theres train tsyst em(Ypage 39). Disp
laymes sage s
189On -boar dcomp uter anddi sp lay s Z