2019 MERCEDES-BENZ SLC ROADSTER parking brake

With
KEYLESS-GO :if you then open thedriv-
er's orfront-passenge rdoor, theautomatic
transmissi onshifts to005D automatical ly.
If you want theautomatic transmissi onto
remai nin neutral 005C,e.g. when havingthe
vehicl eclea ned inan automatic carwas hwith
a towing system:
X Vehic leswith KEYLESS-GO :remove the
Start/Stop buttonfromtheignitio nlock.
X Insert theSmartKey intotheignitio nlock.
X All vehi cles:swi tch the ignitio non.
X Depress thebrake pedaland keep it
depre ssed.
X Shift toneutral 005C.
X Rel ease thebrake pedal.
X Rel ease theelectric parkingbrake.
X Switch offthe ignitio nand leavethe Smart-
Key inthe ignitio nlock.
Eng agin gdrive position D X
When thevehicl eis stationa ry,depre ssthe
brake pedal.
X Push thesele ctor leverback pastthefirst
point ofresis tance. Transmissio
npositi ons 0045 Park
positi on
This prevents thevehicl efrom roll-
ing awa ywhen stoppe d.
Only shiftthetransmissi oninto
posi tion 0045 (Ypag e125) when
the vehicl eis stationa ry.The park-
ing lock shou ldnot beused asa
brake whenparking.Alwa ysapp ly
the electronic parkingbrake inadd i-
tion tothe parki nglock inorder to
secure thevehicl e.
If the SmartKey isremoved fromthe
ignitio nlock, thetransmissi onis
locked.
The automatic transmissi onshifts
to 0045 automatical ly:
R when theSmartKey isremoved
from theignitio nlock
R when theengine isswi tched off
with thetransmissi oninposi tion
0046 or003A andone ofthe
doors isopened
In the event ofamalfu nction ofthe
vehicl e'selectronics, thetransmis-
sion may lockinposi tion 0045.
Have thevehicl eelectronics
checked immediatelyat aqua lified
speci alist worksho p. 0046 Reverse
gear
Only shiftthetransmissi oninto
posi tion 0046 when thevehicl eis
stationa ry. Automatic
transmissio n
127Drivi ngand parking Z

To
ensure thatthevehicle issecured against
rolling awayunintention ally:
R the electric parking brakemustbeapplied.
R the trans mission mustbeinposition 005D.
R the Smart Keymust beremoved fromthe
ignition lock.
R the front wheels mustbeturned towards the
curb onsteep uphillordownhill gradients. Switching
offthe engine G
WARNIN
G
The automatic transmission switches toneu-
tral position Nwhen youswitch offthe
engine. Thevehicle mayrollaway .There isa
risk ofan accident .
Aft erswitching offthe engine, alwaysswitch
to parking position P.Prevent theparked
vehicle fromrolling awaybyapplyi ngthe
parking brake.
X Apply theelectric parking brake.
X Shift thetrans mission toposition 005D
(Y page 126).
X With theSmar tKey:turn theSmart Keyto
position 0092inthe ignition lockandremove
it.
The immobilizer isactivated.
X With KEYLESS-GO: presstheKEYLE SS-GO
Start /Stopbutton (Ypage 118).
The engine stopsandallthe indicator lamps
in the instr ument cluster goout.
If the driver's doorisclosed, thisisthe
same asSmart Keyposition 0047.Ifthe driv-
er's door isopen, thisisthe same asSmart -
Key position 0092(Ypage 118).
The engine canbeswitched offwhile thevehi-
cle isin motion bypressing andholding the
Start /Stopbutton forabout threeseconds.
This funct ionoperates independent lyof the
ECO start/stopautomatic engineswitch-off
funct ion. Elec
tric par king brake
General notes G
WARNIN
G
If children areleft unsupervised inthe vehi-
cle, they could:
R open doors, thereby endangerin gother
persons orroad users
R get out and bestruck byoncom ingtraff ic
R operate thevehicle's equipment
Addition ally,children couldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmission outof
park position 005Dorshift themanual
trans mission toneutral
R start theengine
There isarisk ofan accident andinjury.
When leaving thevehicle, alwaystake the
Smart Keywith youand lock thevehicle. This
also applies forthe digital vehicle keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect.
Always keeptheSmart Keyoutofreach of
children. Thisalso applies forthe Digital
Vehicle Keyifthe "Digital Vehicle Key"func-
tion isactivated viaMercedes meconn ect.
The funct ionofthe electric parking brakeis
dependent onthe on-board voltage.Ifthe on-
board voltage islow orthere isamalfunct ion
in the system, itmay notbepossible toapply
the released parkingbrake.
X Ifthis isthe case, onlypark thevehicle on
level ground andsecure itto prevent itroll-
ing away .
X Shift theautomatic transmission toposition
005D.
It may notbepossible torelease anapplied
parking brakeifthe on-board voltageislow or
there isamalfunct ioninthe system. Contact a
qualified specialist workshop.
The electric parking brakeperforms afunct ion
test atregular intervalswhile theengine is
switched off.The sounds thatcanbeheard
while thisisoccurrin gare normal. Par
king
135Driving andparking Z

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

driving
andbrakin gaccor dingly during this
break- inperiod.
Ex cessiv eheavy brakingresults incorr espond-
ingly highbrake wear.Observe thebrake sys-
tem warning lampinthe instrument cluster
and noteany brake statusmessages inthe
multifun ction display. Especiallyforhigh per-
form ance driving ,it is import anttomaint ain
and have thebrake system checkedregularly. Driving
onwet road s
Hyd ropla ning If
water hasaccumulated toacert aindepth on
the road surface, thereis adanger ofhydro-
planing occurring.
For this reason, inthe event ofheavy rainorin
con dition sin which hydroplaning mayoccur,
you must driveinthe following manner:
R lower yourspeed
R avoid ruts
R avoid sudden steeringmovem ents
R brake carefully
Driving onflooded roads !
Do
not drive through flooded areas.Check
the depth ofany water before driving
thr ough it.Driv eslowly through standing
water. Otherwise, water couldenterthe
vehicle interior orengin ecompart ment.It
can then damage theengin e'sorautomatic
tran smission 'select ronic compon ents.It
can also besucked inby the engin e'sair
int ake connection andcause enginedam-
age. Winter
driving G
WARN
ING
If you shift down onaslippery roadsurface
in an atte mpt toincr ease theengin e'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. G
DANGER
If the exhaust pipeisblock edoradequate
vent ilation isnot possible, poisonous gases
such ascarbon monoxide(CO) mayenter
the vehicle. Thisisthe case, e.g.ifthe vehi-
cle becomes trappedinsnow. Thereisarisk
of fatal injury.
If you leave theengin eor the auxiliary heat-
ing runn ing,make suretheexhaust pipeand
area around thevehicle areclear ofsnow.
To ensure anadequate supplyoffresh air,
open awindow onthe side ofthe vehicle
that isnot facin gint othe wind.
Have yourvehicle winter-proofedataqualified
specialist workshopatthe onset ofwinter .
Driv epartic ularly carefully onslippery road
surfaces .Avoid sudden accelerat ion,steer ing
and brakin gmaneuver s.Do not use cruise
con trol.
If the vehicle threatens toskid orcann otbe
stopped whenmovin gat low speed:
X Shift thetran smission toposition 005C.
The outside temperatureindicat orisnot
designed toserve asan ice-warn ingdevice
and isther efore unsuitable forthat purpose.
Changes inthe outside temperaturearedis-
played afterashort delay.
Indic ated temper aturesjustabove thefreez ing
point donot guarantee thattheroad surface is
free ofice. The road maystillbeicy, especially
in wooded areasoron bridges. Thevehicle
could skidifyou failtoadapt yourdriving
style. Always adaptyourdriving styleanddrive
at aspeed tosuit theprevailing weathercondi-
tion s.
You should payspecial attention toroad con-
dition swhen temper aturesarearound freezing
point .
For more information ondriving withsnow
chains, see(Ypage 270).
For more information ondriving withsummer
tires, see(Ypage 269).
Observe thenotesinthe "Winter operation "
sect ion(Ypage 269). Driving
tips
141Driving andparking Z

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

i
The
lastspeed stored remains storeduntil
you switch offthe engine.
i Act
ive Distan ceAssist DISTRONIC isnot
deactivated ifyou depress theaccelerator
pedal. Ifyou accelerate toovertak e,Act ive
Distan ceAssist DISTRONIC adjuststhevehi-
cle's speed tothe last speed stored after
you have finished overtaking.
Act ive Distan ceAssist DISTRONIC isautomati-
cally deactivated if:
R you engage theelectric parking brakeorif
the vehicle isautomatically securedwiththe
electric parking brake
R ESP ®
inter venes oryou deactivate ESP®
R the trans mission isin position 005D,005Eor005C
R you pull thecruise controllever towards you
in order topull away andthefront -
passenger doorisopen
R you activate Active Parking Assist
R the vehicle isskidding
If Act ive Distan ceAssist DISTRONIC isdeacti-
vated automatically, youwillhear awarning
ton e.The Active Distance AssistOff Active
Distance AssistOff
message willappear onthe multifunct iondis-
play forapproximately fiveseconds.
Tips fordriving withActive Distance
Assist DISTRONIC General
notes
The following contains description sof cert ain
road andtrafficcondit ionsinwhich youmust
be particularly attentive.Insuch situations,
brake ifnecessary. Active Distan ceAssist
DIS TRONIC willthen bedeactivated.
Cornering, goingintoandcoming outof
a bend The
ability ofAct ive Distan ceAssist
DIS TRONIC todetect vehicles whencornering
is limited. Yourvehicle maybrake unexpect -
edly orlate.
Vehicles traveling onadiffer entline Act
ive Distan ceAssist DISTRONIC maynot
detect vehicles thatarenot driving inthe mid-
dle oftheir lane. Thedistance tothe vehicle in
front willbetoo short.
Other vehicles changing lanes Act
ive Distan ceAssist DISTRONIC hasnot
detect edthe vehicle cuttinginyet. Thedis-
tanc eto this vehicle willbetoo short.
Nar row vehicles 150
Driving
systemsDriving andparking

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