2019 MERCEDES-BENZ SL ROADSTER lane assist

revea
led,Active Distance AssistDISTRONIC
wil lnot brake forthem.
Cross ingvehic les Active
Distance AssistDISTRONIC maymis-
takenly detectvehiclesthat arecrossing your
lane.
If you activate ActiveDistance Assist
DISTRONIC underthefollo wing conditions, the
vehicl ecould pullawa yunintentional ly:
R at traffic lights with crossing traffic,for
exampl e
R ifthere isavehicl ein front, afteracrossing,
with theHOLD function activated
Ac tive Distance AssistDISTRONIC with
Ac tive Steerin gAss ist Gene
ralnotes Active
Distance AssistDISTRONIC withActive
Steering Assistaidsyou inkeeping thevehicl e
in the center ofthe drivi nglane bymeans of
modera testeering interventions inaspee d
range from0-125 mph (0-200 km/h ).
It monitors lanemarkings andvehicl esinfront
of you rvehicl eby means ofcamera system0043
at the top ofthe winds hield. In
aspee drange from0-37 mph
(0 -60 km/h ),Active Steering Assistfocuses
on the vehicl ein front, taking intoaccount
lane markings, e.g.when following vehicl esin
a traffic jam.
At spee dsofmore than37mph (60km/h) ,
Active Steering Assistfocuses onclea rlane
markings (leftand right), onlyfocusi ngon the
vehicl ein front ifdetected lanemarkings are
not prese ntatspee dsofup to80 mph
(130 km/h) .
If these conditions arenot prese nt,Active
Steering Assistcannot provideassi stance.
Active Distance AssistDISTRONIC mustbe
active inorder forthe function tobe ava ilable.
Important safetynotes
Active Distance AssistDISTRONIC withActive
Steering Assistcanneither reducethe risk of
an accide ntifyou failtoada ptyou rdrivi ng
style ,nor overrid ethe lawsof phy sics. Itcan-
not take intoaccount road,wea ther ortraffic
conditions. ActiveDistance AssistDISTRONIC
with Active Steering Assistisonly anaid.You
are responsi bleforthe dista ncetothe vehicl e
in front, forvehicl espee d,for braking ingood
time andforstayi nginyou rlane.
Active Distance AssistDISTRONIC withActive
Steering Assistdoesnotdetect roadandtraf-
fic conditions anddoes notdetect allroad
users .If you arefollo wing avehicl ewhi chis
drivi ngtoward sthe edge ofthe road ,you r
vehicl ecould come intocontact withthecurb
or other roadboundarie s.Be particu larly
awa reofother roadusers ,e.g. cycli sts,that
are directly nexttoyou rvehicl e.
Obstacl essuch astraffic pylons onthe lane or
projecting intothelane arenot detected.
An inapp ropria testeering intervention, e.g.
after intentionall ydrivi ngover alane marking,
can becorrected atany time ifyou steer
slig htly inthe oppo sitedirectio n.
Active Distance AssistDISTRONIC withActive
Steering Assistcannot continuous lykeep your
vehicl ein lane. Insome cases, thesteering
intervention isnot suffi cient tobring thevehi-
cle back tothe lane. Insuch cases, youmust
steer thevehicl eyou rself toensure thatit
does notleavethe lane. Drivi
ngsystems
163Drivingand parking Z

The
support provided bythe system canbe
impaired if:
R there ispoor visibility, e.g.due toinsuffi-
cient illumination ofthe road, ordue to
snow, rain,fogorheavy spray
R there isglare, e.g.from oncom ingtraff ic,
the sun orreflect ionfrom other vehicles
(e.g. ifthe road surface iswet)
R the windshield isdirty, fogged up,damaged
or covered, forinstan cebyastick er,inthe
vicinit yof the camera
R there arenolane markings ,or several
unclear lanemarkings arepresent ,e.g.
around construction sites
R the lane marking sare worn away,dark or
covered up,e.g. bydirt orsnow
R the distance tothe vehicle infront istoo
short andthus thelane markings cannotbe
detect ed
R the lane markings changequickly, e.g.lanes
branch off,cross oneanother ormerge
R the road isnarrow andwinding
R there arehighly variable shadeconditions
on the roadway
The system isswitched topassive andnolon-
ger assists youbyperformin gsteerin ginter -
vent ions if:
R you actively changelanes
R you switch onthe turn signal
R you take your hands offthe steerin gwheel
or do not steer foraprolonged periodof
time
i Aft
eryou have finished changing lanes,
Act ive Steer ingAssist isautomatically active
once more.
Act ive Steer ingAssist cannotprovide assis-
tanc e:
R on very sharp corners
R when aloss oftire pressure oradefect ive
tire has been detect edand display ed
Observe theimportant safetynoteson Act ive
Distan ceAssist DISTRONIC (Ypage 156).
The steerin ginter ventions arecarried outwith
a limited steeringmoment .The system
requires thedriver tokeep hishands onthe
steerin gwheel andtosteer himself.
If you donot steer yourself orifyou take your
hands offthe steerin gwheel foraprolonged
period oftime, thesystem willfirst alert you
with avisual warning. Asteerin gwheel symbol appears
inthe multifunct iondisplay .If you
have stillnotstart edtosteer andhave not
taken holdofthe steerin gwheel afterfivesec-
onds atthe latest, awarning tonealso sounds
to remind youtotake controlofthe vehicle.
Act ive Steer ingAssist isthen switched topas-
sive. Active Distan ceAssist DISTRONIC
remains active.
Activating ActiveSteering Assist
X Select theActive Distan ceAssist
DIS TRONIC withActive Steer ingAssist func-
tion using theon-board computer
(Y page 198).
The Active Steering AssistOn Active
Steering AssistOnmes-
sage appears inthe multifunct iondisplay .
Act ive Steer ingAssist isactivated.
Informa tioninthe mult ifunction display If
Act ive Steer ingAssist isactivated butnot
ready forasteerin ginter vention,steerin g
wheel symbol 0043appears ingray. Ifthe sys-
tem provides youwith support bymeans of
steerin ginter ventions, symbol 0043isshown in
green.
Deactivating ActiveSteering Assist
X Deact ivatetheActive Distan ceAssist
DIS TRONIC withActive Steer ingAssist func-
tion using theon-board computer
(Y page 198).
The Active Steering AssistOff Active
Steering AssistOffmes-
sage appears inthe multifunct iondisplay .
Act ive Steer ingAssist isdeactivated.
When Active Distan ceAssist DISTRONIC is
deactivated ornot availabl e,Act ive Steer ing
Assist isdeactivated automatically.164
Driving
systemsDriving andparking

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 fiveseconds
and theindicator lamp
in 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 275).
X Switch theignition backon. The
problem maybecaused byan extern alsource ofradio orultra-
sound waves.
X Check tosee ifParking AssistPARKTRONIC worksatadifferent
location. Active
Parking Assist
General notes Act
ive Parking Assistisan electron icparking
aid with ultrasound. Itmeasures theroad on
both sides ofthe vehicle. Aparking symbol
indicates asuitable parkingspace.Active
steering intervention canassist youduring
parking andwhen exiting aparking space.You
can also stilluse Parking AssistPARKTRONIC
(Y page 172).
Import antsafety notes Act
ive Parking Assistismerely anaid. Itis not
a replacement foryour atten tiontoyour imme-
diate surroundings. Youarealwa ysresponsi-
ble forsafe maneuvering, parkingandexiting a
parking space.Makesurethatnopersons, ani-
mals orobject sare inthe path ofyour vehicle.
When Parking AssistPARKTRONIC isdeactiva-
ted, Active Parking Assistisalso unavaila ble. G
WARNING
While parking orpulli ngout ofaparking
space, thevehicle swingsoutand candrive
onto areas ofthe oncomin glane. Thiscould
cause youtocollide withother roadusers or
object s.There isarisk ofan accident.
Pay atten tiontoother roadusers orobject s.
Stop thevehicle ifnecessary orcancel the
Act ive Parking Assistparking procedure. G
WARNING
While parking orpulli ngout ofaparking
space, thevehicle swingsoutand candrive
onto areas ofthe oncomin glane. Thiscould
cause youtocollide withother roadusers or
object s.There isarisk ofan accident.
Pay atten tiontoother roadusers orobject s.
Stop thevehicle ifnecessary orcancel the Driving
systems
175Drivingandparking
Z

0087
Yellow guidelineforthe vehic lewidth
inc luding theexterior mirrors, atthe cur-
ren tste erin gwheel angle(dynamic )
0085 Yellow lanemark ingthe cours ethe tires
will takeat the curr entsteerin gwheel
angle (dynamic ) 0083
Yellow guidelineatadistan ceofapprox -
imate ly3ft (1. 0m) from therear area
0084 Vehic lecen teraxle (mark erassist ance)
006B Bumper
006C Red guide lineatadistan ceofapprox -
imate ly12 in(0. 30 m)from therear area
The guide linesareshown whenthetransm is-
sion isin posit ion005E.
The distan cespecif ications onlyapply to
obje ctsthat areatgroun dlevel. 0043
Frontwarnin gdisplay
0044 Addit ional measurem entoperat ionalreadi-
ness indicatorforthe Park ingPack age
with rearview camer a
0087 Rear warnin gdisplay
Vehicles withthePar king Packa gewith
rea rview camer a:when thePark ingPack age
with rearview camer ais operat ional
(Y page 173), addition almeasurem entopera-
tion alreadin essindic ator0044appears inthe
multim ediasyste m.Ifthe Park ingPack age with
rearwarnin gdisplays areactive orlight
up, warnin gdisplays 0043and 0087are also active
or light upcor respon dinglyinthe multim edia
syste m.
"Rever separking" funct ion Ba
cking upstraight intoapa rking space
withou tsteer inginpu t 0043
Whit eguide linewithout steerin ginput –
vehic lewidth including theexterior mirrors
(stat ic)
0044 Yellow guidelineforthe vehic lewidth
inc luding theexterior mirrors, atthe cur-
ren tste erin gwheel angle(dynamic )
0087 Yellow guidelineatadistan ceofapprox -
imate ly3ft (1. 0m) from therear area
0085 Red guide lineatadistan ceofapprox -
imate ly12 in(0. 30 m)from therear area
X Make surethattherear view camer ais act i-
vate d(Y page 180).
The lane andtheguide linesareshown .
X With thehelp ofwhite guide line0043,chec k
wheth erthe vehic lewill fitintothe park ing
space.
X Usin gwhite guide line0043asaguide, care-
fully back upunt ilyou reach theend posi-
tion .
Red guide line0085isthe nat the end ofthe
park ingspace. Thevehic leisalmost parallel
in the park ingspace. Driving
systems
181Driving andparking Z

180°
view 0043
Symbol forthe 180 °view function
0044 Your vehicle
0087 Warnin gdisplays forthe Parkin gPackage
with rearview camera
You canalso usetherear view camera to
select a180 °view.
When theParkin gPackage withrearview cam-
era isoperation al(Y page 173), asymbol for
your ownvehicle appears inthe multimedia
system. Ifthe Parkin gPackage withrearview
camera warning displays areactiv e,warning
displays 0087light upinthe multimedia system
in yellow orred accor dingly. ATTEN
TIONASSIST
General notes ATTE
NTION ASSIS Thelps youduring long,
mono tonous journ eys,such ason highways. It
is activ ein the 37mph (60km/ h)to 125 mph
(200 km/h)range. IfATTENTION ASSIST
detects typicalindica torsoffatigu eor increas-
ing lapses inconcentration onthe part ofthe
driver, itsugg ests youtake abrea k.
Important safetynotes ATTENTION
ASSISTisonly anaid tothe driver.
It might notalwaysrecognize fatigueor
increasi nginattentiveness intime orfail to
recognize thematall.The system isnot asub-
stitute forawel l-rested andattentive driver. The
functional ityofATTENTION ASSISTis
restricted andwarni ngsmay bedela yedornot
occur atall:
R ifthe length ofthe journey isless than
app roximatel y30 minutes
R ifthe road condition ispoor, e.g.ifthe sur-
face isuneven orifthere arepothol es
R ifthere isastrong sidewind
R ifyou have adopted asporty drivingstyle
with high cornering speedsorhigh rates of
accele ration
R ifyou arepredo minantly drivingslow erthan
37 mph (60km/h) orfaster than125mph
(200 km/h )
R ifyou aredrivi ngwith theSteering Assistof
Active Distance AssistDISTRONIC activated
R ifthe time hasbeen setincorrectly
R in active drivingsitua tions, suchaswhen
you change lanesorchange yourspee d
The attention levelevaluation isdele tedand
restarts whenthejourney iscontinued, if:
R you switch offthe engine
R you take offyou rseat beltandopen the
driver' sdoor, e.g.forachange ofdrivers or
to take abrea k
Di splayin gthe attention level You
canhave current statusinformatio ndis-
pla yed inthe assi stance menu(Ypag e197)
of the on-board computer.
X Select theAssistance displayforATTEN-
TION ASSIST using the on-board computer
(Y pag e198) . Drivi
ngsystems
183Drivingand parking Z

G
WARNING
Active BlindSpotAssist doesnotreact to:
R vehicl esovertaken tooclosel yon the side ,
pla cing them inthe blind spot area
R vehicl eswhi chapp roach withalarg e
spee ddiffer ential andovertake yourvehi-
cle
As aresu lt,Active BlindSpotAssist maynei-
ther givewarnings norintervene insuch sit-
ua tions. There isarisk ofan accide nt.
Alwa ysobse rvethe traffic conditions care-
full y,and maintai nasafe latera ldista nce.
i USA
only:This devicehas been approved
by the FCC asa"Veh icularRadar System" .
The rada rsensor isintended foruse inan
au tomotive radarsystem only.Remo val,
tamperi ng,oralteri ngofthe devi cewillvoid
any warranties, andisnot permi ttedbythe
FCC. Donot tamper with,alter, oruse inany
non-approve dway .
Any unau thorized modification tothis device
coul dvoid theuser 'sau thority toopera te
the equipme nt.
i Ca
nada only:This devicecompli eswith
RSS-210 ofIndustry Canada .Opera tionis
sub ject tothe followi ngtwo conditions:
1. This devicemay notcaus einterference,
and
2. This devicemust accept anyinterference
receive d,includ inginterference thatmay
caus eundes iredopera tionofthe devi ce.
Remo val,tamperi ng,oralteri ngofthe
devi cewillvoid anywarranties, andisnot
permi tted.Donot tamper with,alter, oruse
in any non-approve dway .
Any unau thorized modification tothis device
coul dvoid theuser 'sau thority toopera te
the equipme nt.
Radar sensors
The rada rsensors forActive BlindSpotAssist
are integrated inthe rear bump erand inthe
radi ator trim. Make surethatthebump ersand
radi ator trim arefree from dirt,iceand slush.
The rear sensors mustnotbecovered ,for
exampl eby cycle racks oroverha ngingcargo.
Follo wing asevere impactor inthe event of
dama getothe bump ers,have thefunction of
the rada rsensors checked ataqua lified spe- cial
istworksho p.Active BlindSpotAssist may
otherwi seno longer workprope rly.
Moni toring area G
WARNING
Active BlindSpotAssist doesnotdetect all
traffic situations androad users.There isa
risk ofan accide nt.
Alwa ysmake surethatthere issuffi cient
dista nceonthe side forother traffic or
obstacl es. Active
BlindSpotAssist monitors thearea up
to 10 ft(3.0 m)behi ndyou rvehicl eand
dire ctly next toyou rvehicl e,as show nin the
dia gram.
The detection ofobstacl escan beimpa iredin
the case of:
R there isdirt onthe sensors oranythi ngelse
covering thesensors
R poor visibility, e.g. due torain, snow or
spra y
Vehi cles inthe monitoring rangearethen not
indica ted.
Active BlindSpotAssist maynotdetect narrow
vehicl es,such asmotorcycle sor bicy cles, or
may onlydetect themtoolate.
If the lanes arenarrow ,vehicl esdrivi nginthe
lane beyond thelane next toyou rvehicl emay
be indica ted,espe ciallyifthe vehicl esare not
drivi nginthe midd leof their lane. Thismay be
the case ifthere arevehicl esdrivi ngatthe
inner edgeoftheir lanes . Drivi
ngsystems
185Drivingand parking Z

Eith
erno bra king applica tion,or acou rse-cor-
recti ngbra keapplica tionad apted tothe driv-
ing situa tionoccu rsif:
R the reareveh icles orobsta cles,e.g .cra sh
ba rriers ,lo cate don both side sof your veh i-
cle .
R aveh icleap pro ach esyoutoo closelyat the
si de .
R youha ve adop ted asp orty drivin gsty lewith
hi gh corne ringsp ee ds.
R youcle arly bra keoracc elera te.
R adri vin gsa fety system intervenes ,e.g .
ESP ®
or PR E-SAFE ®
Bra ke.
R ESP ®
is sw itch edoff.
R aloss oftire pressu reor ade fecti vetire is
de tecte d.
Sw itchin gon Activ eBli nd Spo tAs sist X
Ma kesure tha tActiv eBli nd Spo tAssi stis
acti vated (Ypage 199 ).
X Tu rn the Sma rtKeyto positio n0048 inthe igni-
tio nlock.
Wa rning lamps 0043inthe exte riormir rors
li ght upred forappro xim ately1.5 second s
and thentur nye llow . Ac
tiv eLan eKe epi ng Assist Ge
neral notes Activ
eLa ne Kee ping Assi stmoni torsthearea
in fro ntofyour veh icleby mea nsofmu ltifu nc-
tio ncam era0043atthe top ofthe winds hield.
Va rio us area sto the front, rearand side of
yo ur veh iclear ealso moni toredwi th the aid of
the rada rsen sor system .Activ eLa ne Kee ping
Assi stdetects lane ma rkin gson the roadand
can warnyoube for eyo uleav eyo ur lane unin-
tenti onally. Ifyo udo not reactto the warning,
a lane-co rrecting applica tionof the brakes can
bri ng the vehicleba ck into theoriginal lane.
Thi sfu nctio nis availa bl e in asp ee dra nge
be twe en40 mph and120 mph (60km/h and
200 km/h ).
For Activ eLa ne Kee ping Assi stto assist you
wh en drivin g,the rada rsen sor system mustbe
op era tional .
Impo rtant safety notes
If yo ufa ilto adaptyo ur drivin gsty le,Activ e
La ne Kee ping Assi stcan neithe rred uce the
ris kof acc ident nor override the laws ofphys-
ics .Activ eLa ne Kee ping Assi stcanno ttake
into account roa d,we ath eror tra fficcond i-
tio ns. Activ eLa ne Kee ping Assi stisonl yan
ai d. Yo uar eres ponsi ble for the dista nce tothe
veh iclein fro nt, for veh iclesp ee d, for braking
in go od time andforstaying inyour lane.
Activ eLa ne Kee ping Assi stcanno tconti nu-
ou sly kee pyo ur veh iclein its lane. G
WA
RNING
Activ eLa ne Kee ping Assi stcanno tal wa ys
cle arly de tect lane ma rkin gs. Dr
ivi ng system s
187Drivi ng andparki ng
Z

In
such cases, ActiveLaneKeepi ngAssist
can:
R give anunnecessary warningandthen
make a<00460052005800550056004800100046005200550055004800460057004C0051
004A[ brakeapplica-
tion
R neither giveawarning norintervene
There isarisk ofan accident.
Alway spay particul arattention tothe traffic
situa tionandkeep within thelane, espe-
ciall yif Active LaneKeepi ngAssist alerts
you .Terminate theintervention inanon-crit-
ical driving situation.
The system maybeimpa iredormay notfunc-
tion if:
R there ispoor visibility,e.g. due toinsuffi-
cient illuminatio nof the road, ordue to
snow, rain,fogorheavy spray
R there isglare ,e.g. from oncoming traffic,
the sun orreflection fromother vehicle s
(e.g. ifthe road surface iswet)
R the windshi eldisdirty, fogged up,dama ged
or covered, forinstance byasticker, inthe
vicinity ofthe camera
R there arenolane markings, orseveral
unclea rlane markings arepresent, e.g.
arou ndconstruction sites
R the lane markings areworn away,dark or
covered up,e.g. bydirt orsnow
R the distance tothe vehicle infront istoo
short andthus thelane markings cannotbe
detected
R the lane markings changequickly, e.g.lanes
branch off,cross oneanother ormerge
R the road isnarrow andwindi ng
R there arehighl yvaria bleshade conditions
on the roadw ay
R no vehicle isdetected inthe adjacent lane
and there arebroken lanemarkings
Warning vibration inthe steering wheel
A warning maybegiven ifafront wheel passes
over alane marking. Youwillthen bewarned
by means ofavibratio nthrough thesteering
wheel lasting forupto1.5 seconds .
In order thatyouarewarned onlywhen neces-
sary andingood timeifyou cross thelane
marking, thesystem detects certaincondi-
tions andwarns youaccordingly . The
warning vibrationoccurs earlierif:
R you appro achtheouter lanemarking ona
bend
R the road hasvery widelanes, e.g.afreewa y
R the system detects solidlanemarkings
The warning vibrationoccurs laterif:
R the road hasnarrow lanes
R you cutthe corner onabend
Lane-c orrecting brakeapplication G
WARNING
A lane-correcting brakeapplication cannot
alw ays bring thevehicle backintotheorigi-
nal lane. There isarisk ofan accident.
Alway ssteer, brakeoraccelera teyou rself,
especia llyifActive LaneKeepi ngAssist
warns youormakes alane-correcting brake
appl ication. G
WARNING
Active LaneKeepi ngAssist onlydetects traf-
fic conditions orroad users toalimi ted
extent. Invery rarecases, thesystem may
make aninapp ropria tebrake application,
e.g. after intentionally drivingoverasolid
lane marking. Thereisarisk ofan accident.
An inapp ropria tebrake application maybe
interrupted atany time ifyou steer slightly
in the opposi tedirection. Alwaysmake sure
that there issufficie ntdistance onthe side
for other traffic orobstacle s.
In rare cases, ActiveLaneKeepi ngAssist
could detect broken linemarkings orspecia l
structures onthe road surface assolid lane
markings. Aninapp ropria tebrake application
can beinterrupted atany time, forexample if
you steer slightlyinthe opposi tedirection. 188
Drivi
ngsystemsDrivi ngand parking