2019 MERCEDES-BENZ SLC ROADSTER ESP

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

Active
Distance AssistDISTR ONICha snot yet
de tecte dthe vehiclein front onthe edge of
the roadbe cau seofits nar row width. Thedis-
tance tothe vehiclein front willbe too short.
Ob struc tions and stati onary vehic les Active
Distance AssistDISTR ONICdo es not
bra kefor obsta clesor sta tionar yveh icles. If,
for exa mpl e,the detecte dveh icleturn sa cor-
ner and anobsta cle orsta tionar yveh icleis
rev ealed, Active Distance AssistDISTR ONIC
wi llnot brakefor them .
Cro ssingve hic les Active
Distance AssistDISTR ONICma ymis -
take nlydetect vehicles tha tar ecros sing your
la ne.
If yo uacti vate Active Distance Assist
DISTR ONICund erthe followi ng cond itions, the
veh iclecou ldpu llaw ay uni ntenti onally:
R at traf ficlights with cros sing traf fic, for
exa mpl e
R ifther eis aveh iclein front, aftera cros sing,
wi th the HOLD functio nacti vated HOL
Dfun ction
Ge neral notes The
HOLD functio ncan assist the driver inthe
fol lowi ng situa tions:
R Whe npu lling away,esp ecially on stee p
sl op es
R Whe nma neu vering onstee pslop es
R Whe nwa iting intraf fic
The vehicleis kep tsta tionar ywi thou tthe
dri ver having todepre ssthe brakepedal.
The braking effectiscance led and theHOLD
fu nctio nde acti vated when youde pre ssthe
acce lera tor pedalto pullaw ay.
Impo rtant safetynotes G
WA
RNING
If the vehicleis onl ybra ked using the HOLD
fu nctio n,the vehiclema yrol law ay inthe fol-
lo wi ng situa tions when youleav ethe vehi-
cle :
R ifther eis ama lfunctio nin the system or
in the voltag esu pp ly
R ifthe HOLD functio nis de acti vated by
de pre ssing the acce lera tor pedalor bra ke
pe dal,e.g .by aveh icleoccu pant
The reisaris kof an acci dent.
Alw aysde acti vate the HOLD functio nand
sec urethe vehicleag ainst rolling away
be fore youleav eit.
! Whe
nActive Distance AssistDISTR ONIC
or the HOLD functio nis acti vated ,the vehi-
cle brakes automa tically in certa insitua -
tio ns.
To avoid da ma getothe vehicle, de acti vate
Active Distance AssistDISTR ONICand the
HOLD functio nin the followi ng orsimil arsit-
ua tio ns:
R wh en tow ingthe vehicle
R in the carwash
Dea ctiva tingtheHOLD functio n(Y page 152 ). Dri
ving sys tems
151Dr ivi ng andparki ng Z

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

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

Problems
withParking AssistPARKTRONIC Problem
Possible
causes/co nsequences and0050 0050
Solutions Only
thered segments
in the Parking Assist
PARKTRONIC warning
display sare lit.You also
hear awarning tonefor
approximately twosec-
onds.
Parking Assist
PARKTRONIC isdeacti-
vated afterapprox-
imately 20seconds and
the indicator lampin
the Parking Assist
PARKTRONIC button
lights up. Parking
AssistPARKTRONIC hasmalfunction edand hasbeen deac-
tivated.
X Ifproblems persist,haveParking AssistPARKTRONIC checkedat
a quali fiedspecialist workshop. Only
thered segments
in the Parking Assist
PARKTRONIC warning
display sare lit.Parking
Assist PARKTRONIC is
deactivated after
approximately fivesec-
onds. The
Parking AssistPARKTRONIC sensorsaredirty orthere isinter-
ferenc e.
X Clean theParking AssistPARKTRONIC sensors(Ypage 250).
X Switch theignition backon. The
problem maybecaused byan extern alsource ofradio orultra-
sound waves.
X Check tosee ifParking AssistPARKTRONIC worksatadifferent
location. Parking
Guidance
Import antsafety notes Parking
Guidanceisan electron icparking aid
with ultrasound. Ultrasoundisused tomeas-
ure theroad onboth sides ofthe vehicle. A
suitable parkingspaceisindicated bythe
parking symbol. Youreceive steering instruc-
tions when parking. Youcanalso stilluse
Parking AssistPARKTRONIC (Ypage 153).
Parking Guidanceisonly anaid. Itis not a
replacement foryour atten tiontoyour immedi-
ate surroundings. Youarealwa ysresponsible
for safe maneuvering, parkingandexiting a
parking space.Makesurethatthere areno
persons, animalsorobject sin the maneuver-
ing area when youaremaneuvering orparking. G
WARNING
If object sare located abovethedetect ion
range, Parking Guidancemay provide steer- ing
instruct ionstoosoon. Youmay cause a
collision asaresult. Thereisarisk ofan
accident.
If object sare located abovethedetect ion
range, stopandswitch offParking Assist.
! If
they cannot beavoided, driveover
obstacles suchascurbs slowly andatan
obtuse angle.Otherwise, youmay damage
the wheels ortires.
When Parking AssistPARKTRONIC isswitched
off, Parking Guidanceisalso unavaila ble.
Parking Guidancemay alsodisplay spaces not
suitable forparking, e.g.:
R where parking orstopping isprohibited
R in front ofdriveways orentr ances andexits
R on unsuitable surfaces 156
Driving
systemsDriving andparking

ATTEN
TIONASSIST asses ses your level offati -
gu eor lapse sin conce ntrationbytaki ngthe
fol lowi ng crite riainto acco unt:
R your perso nal driving style,e.g .stee ring
cha racteri stics
R jou rney detai ls,e.g .time ofdayand length
of jou rney
The functio nality ofATTEN TIONASSIST is
res tricte dand warning sma ybe delaye dor not
occu rat all:
R ifthe roadcond ition ispo or, e.g.if the sur-
fac eis une ven orifther ear epo thol es
R ifther eis astro ngside wind
R ifyo uha ve adop ted aspo rtydriving style
wi th high corne ringspeedsor high rates of
acce lera tio n
R ifyo uar epre domina ntlydriving slow ertha n
50 mph (80km/h )or fas ter than112 mph
(180 km/h )
R ifyo uar ecur rentl yus ing COMAND orma k-
ing atel ephone callwi th it
R ifthe time hasbe en set inco rrectly
R in acti vedriving situa tions, such aswhen
yo ucha nge lanes orcha nge your spe ed
ATTEN TIONASSIST isonl yan aid to the driver .
It mig htnot alwa ysreco gnizefati gueor
incr easing inattenti venessintime orfailto
reco gnizethem atall. The system isnot asu b-
sti tute forawe ll-res ted and attentive driver .
Warni ngand display messagesinthe
multi function display X
Activa teATTEN TIONASSIST using the on-
bo ardcomp uter(Y page 175 ).
If ATTEN TIONASSIST isacti ve,youwi llbe
wa rned nosoo ner than20 minu tesafte r
yo ur jou rney hasbe gun. Yo uthen hearan
inte rmittent warning tonetwice and the
ATT ENTION ASSIST:Tak eaBre ak! ATT
ENTION ASSIST:Tak eaBre ak! mes-
sa ge appe arsin the multifu nctio ndispl ay.
X Ifnece ssary,take abre ak.
X Pre ssthe 0076 or0038 button toconfi rm
the mes sage.
On long jou rney s,take regular bre aks ingoo d
time toallo w yo ursel fto res tpro perly.If yo u
do not take abre akand ATTEN TIONASSIST
sti llde tects increasing lapse sin conce ntra-
tio n,youwi llbe warned again afte r15 minu tes
at the earliest. ATTEN
TIONASSIST isres etwh en youconti nue
yo ur jou rney andstarts asses sing your tire d-
ness again if:
R yousw itch offthe engine
R youtake offyour sea tbe ltand open the
dri ver 'sdo or, e.g.for acha nge ofdri ver sor
to take abre ak
Whe nATTEN TIONASSIST isde acti vated ,the
00D7 symbo lap pe arsin the multifu nctio ndis-
pl ay inthe assista nce graphicsdispl ay.
Vehi cles with CO MA ND: ifawa rning isou t-
pu tin the multifu nctio ndispl ay,a ser vice sta-
tio nsea rch ispe rfor med inthe multimed ia
sy stem .Yo ucan select aser vice stationand
nav igati on tothisser vice stationwi llthen
be gin. Thi sfu nctio ncan beacti vated and
de acti vated inthe multimed iasystem . Lan
eTrack ingpac kag e
Ge neral notes The
Lane Tra cking packag econsi stsofBlind
Spo tAssi st(Y page 163 )and Lane Kee ping
Assi st(Y page 165) .
Bli nd Spo tAs sist Ge
neral notes
Bli nd Spo tAssi stmoni torsthearea son either
si de ofthe vehicletha tar enot visible to the
dri ver with two latera l,rea r-fa cing rada rsen-
sor s.Awa rning displ ayinthe exte riormir rors
dra ws your atte ntionto veh icles detecte din
the moni toredar ea .If yo uthen switch onthe
corr espond ingturn signa lto cha nge lane, you
wi llal so rece iveanoptica land audibl e wa rn-
ing .
Bli nd Spo tAssi stsupp orts youfrom aspe edof
ap pro xima tely20 mph (30km/h ).
For Blind Spo tAssi stto assist you, the rada r
sens orsystem mustbe opera tional . Dri
ving sys tems
163Dr ivi ng andparki ng Z

Imp
ortant safety notes G
WAR
NING
Blin dSpo tAs sist does notreac tto :
R veh iclesove rtake nto oclo sely ontheside ,
plac ingthem intheblin dspot area
R veh icleswhic happr oachwit halarg e
spee ddiff ere ntial and overtake your vehi-
cle
As ares ult, BlindSpo tAs sist may notgiv e
warn ingsin suc hsit uati ons.Ther eis aris k
of an acc iden t.
Alw ays obse rveth etraff icco nd ition scar e-
fully, andmain tainasafe lateral distance.
Blin dSpo tAs sist ison lyan aid. Itmay failto
det ect som eveh iclesand isno subs titute for
att entivedriv ing.Alw ays ensure that there is
suff icientdist anceto theside forother road
user sand obst acles.
i US
Aon ly:
This devicehas been approvedby theFCC
as a"Veh icularRadar System". The radar
sen sor isint ended foruse inan auto motive
radar systemonly. Remo ving,tam pering
wit h,or alterin gth edev icewill void anywar-
ran ties,and isno tper mittedby theFCC. Do
no ttam per with,alt er, oruse inany non-
appr ovedway.
An yunaut horizedmod ification tothis dev ice
co uld void theuser ’sauth orityto oper ate
th eequipm ent.
Ra darsensor s
The radar sensorsfor Blin dSpo tAs sist are
int egr atedint oth erear bump er.Mak esure
th at thebump ersare free from dirt,ice or
slush .The sensorsmust notbe cover ed, for
ex ample bycyc lerac ksorove rhan gingloads .
Fol lowin gasev ere impac tor intheeve ntof
damag eto thebump ers,have thefun ction of
th eradar sensorsch eck edataqualif iedspe-
cial istwork shop.Blin dSpo tAs sist may nolon-
ger work properly. Moni
toring range ofthesensor s
In part icula r,thedet ection ofobst aclescan be
impai redif:
R there isdirt onthesen sorsor anyt hingelse
co ver ing thesen sors
R there ispoor visibilit y,e.g. due tofog ,heav y
rain ,sn ow orspr ay
R there arenarrow vehicles,e.g. mot orcycle s
or bic ycle s
R theroad hasverywide lanes
R theroad hasnarrow lanes
R you arenotdriv inginthemidd leof thelane
R there arebarr iers orother road boundarie s
Veh iclesin themon itorin gran geare then not
ind icat ed. Blin
dSpo tAs sist mon itorsthearea upto10 ft
(3. 0m) behi ndyour vehicle and directly ne xt
to your vehicle,as sho wninthediagr am.For
th is purp ose, BlindSpo tAs sist uses radar sen-
sor sin therear bump er.
If th elane sare narrow, vehiclesdriv inginthe
lane beyon dth elane next to your vehicle may
be indicat ed, espe ciallyifth eveh iclesare not
driv inginthemidd leof their lane .This may be
th ecas eif th ere arevehiclesdriv ingatthe
inn eredge oftheir lane s.
Due tothenat ure ofthesyst em:
R warn ingsmay beissue din err orwhen driv-
ing closetocrash barriers orsim ilar solid
lane borders.
R warn ingsmay beinterr upt edwhen driving
alon gsidelon gveh icles,e.g. truck s,for a
pro longed time. 164
Driv
ingsyst emsDriv ingand parki ng

Alw
ayspa ypa rticu laratte ntionto the traffic
si tua tionand keepwi thi nthe lane, espe-
cia lly if La ne Kee ping Assi stalerts you. G
WA
RNING
The Lane Kee ping Assi stwa rning does not
retu rnthe vehicleto the original lane. There
is aris kof an acci dent.
Yo usho uld alwa ysstee r,bra keoracce lera te
yo ursel f,in pa rticu larif wa rned byLane
Kee ping Assi st.
If yo ufai lto adap tyo ur driving style,La ne
Kee ping Assi stcan neither reduce theriskof
an acci dent nor override the laws ofphy sics.
La ne Kee ping Assi stcanno ttake intoacco unt
the road,traf ficand weath ercond itions. Lane
Kee ping Assi stismer elyan aid. Yo uar e
res ponsi ble for the dista nce tothe vehiclein
front, forveh iclespe ed,for braking ingoo d
time andforstaying inyour lane.
The Lane Kee ping Assi stdo es not keepthe
veh iclein the lane.
The system maybe imp aired orma ynot func-
tio nif:
R ther eis po or vis ibility ,e.g .du eto ins uffi-
cie ntillu mina tionof the road,or dueto
snow ,ra in, fog orspr ay
R ther eis glar e, e.g .from oncoming traffic,
the sunor ref lectio ns(e.g. when the road
su rfa ce iswe t)
R the windsh ield isdirty ,fog ged up,da ma ged
or cove red,for instance byasti cker, inthe
vici nity ofthe cam era
R ther ear eno, severalor uncl earla ne ma rk-
ing sfor alane, e.g.in area swi th roa dcon-
stru ctionwo rk
R the lane ma rking sar ewo rnaw ay,da rk or
cove redup,e.g .by dirt or snow
R the dista nce tothe vehiclein front istoo
sma lland thelane ma rking sthu scanno tbe
de tecte d
R the lane ma rking scha nge quickl y,e.g .la nes
bra nch off,cros sone another ormer ge
R the roadis nar row andwindi ng
R ther ear estro ngsha dows cas ton the road Sw
itchin gon Lan eKe epi ng Assist
X Swi tch onLane Kee ping Assi stusing the on-
bo ardcomp uter;to do so, select Standard Sta
ndard
or Ada ptive Ada
ptive(Ypage 175 ).
If yo udri ve atspe edsab ove 40mph
(60 km/h )and lane ma rking sar ede tecte d,
the lines inthe assista nce graphicsdispl ay
(Y page 175 )ar esho wningre en. Lane
Kee ping Assi stisrea dyfor use.
Stan dard
If Sta ndard Sta
ndardissel ecte d,no warning vibratio n
occu rsif:
R yousw itch onthe turn signa ls.In thi seve nt,
the warning sar esu pp res sed foracerta in
pe rio dof time
R adri ving safety system intervenes, such as
ABS, BASorESP ®
Ada ptiv e
Whe nAda ptive Ada
ptiveissel ecte d,no warning vibra-
tio noccu rsif:
R yousw itch onthe turn signa ls.In thi seve nt,
the warning sar esu pp res sed foracerta in
pe rio dof time
R adri ving safety system intervenes, e.g.ABS,
BAS orESP ®
R youacce lera te hard, e.g.kickd own
R youbra kehard
R youstee racti vely,e.g .sw erv eto avoid an
ob sta cle orcha nge lanes quickl y
R youcut the corne ron asha rpbend
In ord ertha tyo uar ewa rned onlywh en nece s-
sa ry and ingoo dtime ifyo ucros sthe lane
ma rking ,the system recognizes certa incond i-
tio ns and warns youacco rdingl y.
The warning vibratio noccu rsearlier if:
R youap pro ach theouter lane ma rking ona
be nd
R the roadha sver ywi de lanes, e.g.a fre ew ay
R the system recognizes solidlane ma rking s
The warning vibratio noccu rslater if:
R the roadha snar row lanes
R youcut the corne ron abe nd 16
6 Dri
ving sys temsDrivi ng andparki ng