warning MERCEDES-BENZ SL CLASS 2020 Repair Manual

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 278).
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 174).
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
177Drivingandparking
Z

parkin
gprocedure withtheParkin gPackage
with rearview camera.
! If
they cannotbe avoided, driveover
obstac lessuch ascurbs slowly andatan
obtuse angle.Otherwise, youmay damage
the wheels ortires.
Ac tive Parkin gAssist mayalsoshow parkin g
spaces whicharenot suitable forparkin g,for
example:
R where parkingor stoppin gis prohibited
R in fron tof driveways orent ranc esand exits
R on unsuitable surfaces
Parkin gtips:
R on narro wroads, driveasclose tothe park-
ing space aspossible
R parkin gspaces thatarelittered orover-
grown mightbeident ifiedormeasured
incor rectly
R parkin gspaces thatarepartially occupied
by trailer drawbars mightnotbeident ified
as such orbe measured incorrectly
R snowfall orheavy rainmay lead toaparkin g
space beingmeasured inaccurately
R pay attention tothe warning messages of
Parkin gAssist PARKTRONI Cduring the
parkin gprocedure (Ypage 175)
R you can interven ein the steer ingprocedure
to corr ectitat any time. Active Parkin g
Assist willthen becanc eled
R when transport ingaload which protrudes
from yourvehicle, youshould notuse Active
Parkin gAssist
R never useActive Parkin gAssist whensnow
chains areinstalled
R make surethatthetire pressures arealways
corr ect.This hasadirect influen ceon the
parkin gcharact eristicsof the vehicle
Use Active Parkin gAssist forparkin gspaces:
R parallel oratright angles tothe direct ionof
trav el
R on straight roads, notbends
R on the same levelasthe road, e.g.noton
the pavement
Detecting parking spaces Objec
tslocated abovethedetec tionrange of
Ac tive Parkin gAssist willnotbedetec ted
when theparkin gspace ismeasured. These are
not taken intoaccoun twhen theparkin g
procedure iscalculated, e.g.overhan ging
loads, tailsect ions orloading rampsoftruc ks.
Ac tive Parkin gAssist maytherefore guide you
int othe parkin gspace tooearly. G
WARN
ING
If ther eare objec tsabove thedetec tion
range:
R the Parkin gPackage withrearview cam-
era may steer tooearly
R the vehicle maynotstop infron tof these
objec ts
This could cause acollision. Thereisarisk
of an acciden t.
If objec tsare located abovethedetec tion
range, stopanddeactiv atethe Parkin gPack-
age with rearview camera.
Furt herinfor mation aboutthedetec tionrange
(Y page 174).
Ac tive Parkin gAssist doesnotassist youpark-
ing inspaces perpendic ulartothe direct ionof
trav elif:
X Two parkin gspaces arelocated directlynex t
to one anot her.
X The parkin gspace isdirect lynex tto alow
obstac lesuch asalow curb.
X You park forwards.
Ac tive Parkin gAssist doesnotassist youpark-
ing inspaces thatareparallel oratright angles
to the direct ionoftrave lif:
R the parkin gspace ison acurb
R the system readstheparkin gspace asbeing
block ed,forexample byfoliage orgrass
paving blocks
R the area istoo small forthe vehicle to
maneuver into
R the parkin gspace isbordered byan obsta-
cle, e.g. atree, apost oratrailer G
WARN
ING
If ther eare objec tsabove thedetec tion
range:
R Ac tive Parkin gAssist maysteer tooearly
R the vehicle maynotstop infron tof these
objec ts 178
Driving
systemsDriving andparking

erwise,
Active Parkin gAssist willbecan-
celed.
X Stop assoon asParkin gAssist PARKTRONIC
sounds thecontinuous warning tone,ifnot
before.
Maneuverin gmay berequired intight park-
ing spaces.
The Parking AssistActiveSelectD Parking
AssistActiveSelectD
Observe Surroundings Observe
Surroundingsmessage appearsin
the multifunc tiondisplay.
X Shift thetran smission toposition 005Bwhile
the vehicle isstat ionary.
Act ive Parkin gAssist immediately steersin
the other direction.
The Parking AssistActiveAcceler‐ Parking
AssistActiveAcceler‐
ate andBrake Observe Surroundings ate
andBrake Observe Surroundings
message appearsinthe multifunc tiondis-
play.
i You
willachieve thebest results bywaiting
for the steerin gprocedure tocomplet e
before pulling away.
X Drive forwards andbeready tobrake atall
times.
X Stop assoon asParkin gAssist PARKTRONIC
sounds thecontinuous warning tone,ifnot
before.
The Parking AssistActiveSelectR Parking
AssistActiveSelectR
Observe Surroundings Observe
Surroundingsmessage appearsin
the multifunc tiondisplay.
As soon asthe parking procedure iscomplet e,
the Active Parking AssistFinished Active
Parking AssistFinishedmes-
sage appears onthe multifunc tiondisplay and
you hear aton e.The vehicle isnow parked.
Act ive Parkin gAssist nolonger supports you
with steerin ginter ventions. When Active Park-
ing Assist isfinished, youmust steer again
yourself. ParkingAssist PARKTRONIC isstill
available.
Parkin gtips:
R The way your vehicle isposition edinthe
parking spaceafterparking isdependent on
various factors. These include theposition
and shape ofthe vehicles parkedinfron t
and behind itand theconditions ofthe loca-
tion .It may bethe case thatActive Parkin g
Assist guides youtoofarinto aparking
space, ornot farenough intoit.Insome
cases, itmay alsolead youacross oront o the
curb. Ifneces sary,cancelthe parking
procedure withActive Parkin gAssist .
R You canalso preselect transmission position
005B. The vehicle redirect sand does notdrive
as far into theparking space.Should the
tran smission changetakeplace tooearly,
the parking procedure iscanc eled. Asensi-
ble parking position cannolonger beach-
ieved fromthisposition .
Exiting apar king space In
order thatActive Parkin gAssist cansupport
you when exitingthe parking space:
R the border ofthe parking spacemustbe
high enough atthe fron tand therear. A
curb istoo small, forexample.
R the border ofthe parking spacemustnotbe
too wide. Yourvehicle canbemaneuvered
into aposition atamaximum of45° tothe
start ingposition inthe parking space.
R amaneuverin gdistanc eof at least 3.3ft
(1.0 m)must beavailable.
Act ive Parkin gAssist canonly assist youwith
exitin gaparking spaceifyou have parked the
vehicle parallel tothe direct ionoftravel using
Act ive Parkin gAssist .
X Start the engine.
X Release theelectr icparking brake.
X Switc hon the turn signal inthe direct ion
you willdrive outofthe parking space.
X Shift thetran smission toposition 005Bor005E.
The Start Parking Assist?Yes:OK Start
Parking Assist?Yes:OK
No: No:0038
messageappearsinthe multifunc -
tion display.
X To cancel theprocedure: pressthe0038
button onthe multifunc tionsteerin gwheel
or pull away.
or
X To
exit apar king space usingActive
Park ingAssist: pressthe0076 button on
the multifunc tionsteerin gwheel.
The Parking AssistActiveAcceler‐ Parking
AssistActiveAcceler‐
ate andBrake Observe Surroundings ate
andBrake Observe Surroundings
message appearsinthe multifunc tiondis-
play.
X Let goofthe multifunc tionsteerin gwheel.
X Pull away, beingready tobrake atall times.
Do not exceed amaximum speedofapprox-
imately 6mph (10km/ h)when exitinga
parking space.Otherwise, Active Parkin g
Assist willbecanc eled. 180
Driving
systemsDriving andparking

Under
thefollowi ngcircumstances, therear
view camera willnotfunction, orwill function
in alimited manner:
R ifthe trunk lidisopen
R in heavy rain,snow orfog
R at night orinvery dark places
R ifthe camera isexposed tovery bright light
R ifthe area islit by fluorescent bulbsor LED
lighting (thedispla ymay flicker)
R ifthere isasudden changeintemperature,
e.g. when driving intoaheated garagein
winter
R ifthe camera lensisdirty orobstructed.
Observe thenotes oncleaning
(Y page 278)
R ifthe rear ofyour vehicle isdamage d.Inthis
case, havethecamera position andsetting
checked ataqual ified speciali stworkshop.
The field ofvision andother functions ofthe
rear view camera mayberestrict eddue to
additional accessories onthe rear ofthe vehi-
cle (e.g. license plateholder, bicycle rack).
On vehicles with<004B0048004C004A004B0057001000440047004D00580056005700440045004F
0048[ chassis,
leaving thestandard heightcanresult ininac-
curacies inthe guide lines,depending ontech-
nical conditions.
i The
cont rast ofthe displa ymay beaffec-
ted bythe sudden presence ofsunlight or
other lightsources, e.g.when exiting a
garage. Payparticular attentioninthis situa-
tion.
i If
usabi lityisseverely restricted,e.g. due
to pixel errors, havethedispla yrepaired or
replaced.
Activating/ deactivating therear view
camera X
To activate: makesurethattheSmartKey
is in position 0048inthe ignition lock.
X Make surethattheActivation byRgear Activation
byRgear
function isselected inthe multimedia sys-
tem; seetheDigital Operator's Manual.
X Engage reverse gear.
The multimedia systemshowsthearea
behind thevehicle withguide lines.
The image fromtherear view camera is
avail able throughout themaneuvering proc-
ess. To
deactivate: therear view camera deacti-
vates ifyou shift thetransmission toposition
005D, orafter driving forwards ashort distance.
The inner segments ofthe warning indicator
are displa yedinred ifthere isacomplete sys-
tem failure.The indicator lampinthe
PARKTRONIC buttonlightsup.
If the system failsatthe rear ofthe vehicle:
R the rear segments areshown inred when
backing up.
R the rear segments arehidden whendriving
forwards.
Displays inthe multim ediasystem The
rear view camera mayshow adistorted
view ofobstacles, showthemincorrect lyor
not atall. The rear view camera doesnotshow
objects inthe followi ngpositions:
R very close tothe rear bumper
R under therear bumper
R in close range above thehandle onthe trunk
lid
! Objects
notatground levelmayappea rto
be further awaythan theyactually are,e.g.:
R the bumper ofaparked vehicle
R the drawba rof atrailer
R the ball coupling ofatrailer towhitch
R the rear section ofan HGV
R aslanted post
Use theguide linesonlyfororientation.
Approach objectsnofurther thanthebot-
tom-most guideline. 0043
Yello wguide lineatadistance ofapprox-
imately 13ft(4.0 m)from therear area
0044 White guidelinewithout steering input–
vehicle widthincluding theexterior mirrors
(static) 182
Driving
systemsDriving andparking

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 174), 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 e199)
of the on-board computer.
X Select theAssistance displayforATTEN-
TION ASSIST using the on-board computer
(Y pag e200) . Drivi
ngsystems
185Drivingand parking Z

The
following informationisdisplay ed:
R the length ofthe journey sincethelast
break.
R the atten tionlevel determin edbyATTEN -
TION ASSIST, display edinabar display in
five levels fromhightolow.
R ifATTE NTION ASSISTisunable tocalculate
the atten tionlevel andcann otoutput a
warning, theSystem suspended System
suspended message
appears. Thebardisplay thenchanges the
display ,e.g. ifyou aredriving ataspeed
below 37mph (60km/ h)or above 125mph
(2 00 km/ h).
Acti vating ATT ENT ION ASSIS T X
Ac tivat eAT TENTI ON ASSIST usin gth eon -
boar dco mput er(Y page 200).
The systemdeterm inesth eatt ention levelof
th edri ver depe nding ontheset ting sele c-
te d:
St and ardselect ed:thesen sitivit ywit hwhic h
th esyst emdeterm inesth eatt ention levelis
set tonorm al.
Sens itive select ed:thesen sitivit yis set
high er.The attention leveldet ectedby ATTEN-
TIO NAS SIST isadapt edacc ordinglyand the
dri ver iswarn edearl ier.
When ATTENTI ON ASSIST isdeac tivat ed, the
00AD symboland OFFappear inthemult ifunc-
ti on disp layintheassi stanc edisp laywhen the
en gin eis run ning.
When ATTENTI ON ASSIST has been deactiva-
te d, itis auto maticallyreac tivat ed afterthe
en gin ehas been stoppe d.The sensitivit y
sele cted correspo ndsto thelast selection acti-
vat ed (stand ard/ sensitive ).
Wa rning inthemu ltifu nct ion displa y If
fat igue orinc reas inglapse sin concen trati on
are detected, awarn ingappear sin themult i-
fun ction disp lay:Attention Assist:Tak e Att
ention Assist:Tak e
a bre ak! a
bre ak!
In addit iontothemes sage showninthemult i-
fun ction disp lay,you willthen hear awarn ing
to ne .
X Ifne cessar y,tak eabre ak.
X Con firm themes sage bypre ssing the0076
but tonon thest eer ing whee l.
On longjo urn eys, takereg ular breaks ingoo d
ti me toallow yourselftores t.Ifyou donot tak
eabre ak, you willbewarn edagain after
15 min utesat theearl iest.The precond ition
for this isthat ATTENTI ON ASSIST still det ects
typ ical indicat ors offat igue orinc reas inglap-
ses inconcen trati on.
Veh icles withCOMA ND:ifawarn ingis
iss ued inthemult ifunction disp lay,aser vice
st ati on sear chisper formed inCOMA ND.You
can selectaser vicest ati on and navigat ionto
th is ser vicest ati on will then begi n.This func-
ti on can beact ivat edand deac tivat ed in
COMA ND. Acti
veDri ving Assis tance packa ge
Gene ralnot es The
Active Drivin gAs sis tan cepac kageco n-
sis tsof Active Distanc eAs sis tDI ST RONI C
(Y page 157), Active Steer ing Assis t,Ac tive
Bli nd Spot Assis t(Y page 186)and Active
Lan eKee pingAs sis t(Y page 189).
Acti veBlind Spot Assis t Gene
ralnot es
Ac tive Blind Spot Assis tmon itors theareas on
eit her side oftheveh icleth at are notdir ectly
vis ible tothedri ver withtwo lateral ,rear -
fac ing radar sensors.Awarn inglamp lightsup
in theex terio rmir rorsand draw syour atten-
ti on toveh icles det ectedin themon itore d
area. Ifyou then swit chon theco rrespo nding
tur nsign alto chang elan e,you willalso
rec eivean opt ical and audible warning.If aris k
of lateral collisi onisdet ected, correc tive brak -
ing may help youavoidaco llisi on.Be for ea
co urs e-co rrec ting brak eapplic ation,Ac tive
Bli nd Spot Assis teval uate sth espac ein the
dir ection oftravel andattheside sof theveh i-
cle .Fo rth is, Active Blind Spot Assis tuses the
for ward -facin gradar sensors.
Ac tive Blind Spot Assis tsupp ortsyou from a
spee dof appr oximat ely20mph (30km/h).
Imp ortant safety notes
Ac tive Blind Spot Assis tis on lyan aid and is
no ta subs titut efor attentive drivin g. 186
Driv
ingsystem sDriv ingand parki ng

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
187Drivingand parking Z

Due
tothe natu reofthe system :
R wa rnings maybe issu ed inerr orwh en driv-
ing closetocra shbarriers orsimil arsol id
la ne borde rs.
R wa rnings maybe inte rrupte dwh en drivin g
al ong side partic ular ly long veh icles, e.g.
tru cks, forapro longe dtime .
In dic ator andwarning display 0043
Yellow indicator lamp/ redwarning lamp
Activ eBli nd Spo tAssi stisnot activeatspee ds
be low ap pro xim ately20 mph (30km/h ).Veh i-
cle sin the moni toringrange arethe nnot indi-
cate d.
Wh enActiv eBli nd Spo tAssi stisacti vated ,
ind icator lamp 0043inthe exte riormir rorslights
up yellow atspee ds ofup to20 mph
(30 km/h ).At spee ds above 20mph
(30 km/h ),the indicator lamp goes outand
Activ eBli nd Spo tAssi stisop era tional .
If aveh icleis de tecte dwi thi nthe moni toring
ra nge atspee ds above appro xim ately20 mph
(30 km/h ),wa rning lamp 0043onthe corr e-
sp ond ingside lights upred .Thi swa rning
al wa ysoccu rswh en aveh icleente rsthe moni -
tori ngrange frombehind orfro mthe side .
Wh enyouove rtake aveh icle, the warning only
occu rsifthe diffe renc ein spee dis less tha n
7 mph (12km/h ).
The yellow indicator lamp goes outif rev ers e
ge ar iseng aged .In thi seve nt,Activ eBli nd
Spo tAssi stisno longe racti ve.
The brightne ssofthe indicator/w arning lamps
is ad jus ted automa tically acc ording tothe
am bient light.
Vis ual and acou sti cco llis io n wa rning
If yo usw itch onthe turnsigna lsto cha nge
la nes and aveh icleis de tecte din the side
moni toringrange ,yo urece iveavis ualand
aco ustic collisi on warning. Youwi llthe nhe ar a do
ublewa rning tone andredwarning lamp 0043
fla she s.Ifthe turnsigna lrem ains on, detecte d
veh icles areind icated bythe flashi ng ofred
wa rning lamp 0043. Thereareno furthe rwa rning
tone s.
Co urse -corre cting brak eappl icatio n
If Activ eBli nd Spo tAssi stdetects aris kof a
la tera lcol lisi on inthe moni toringrange ,a
cou rse-corr ectingbra keapplica tionis car ried
ou t.Thi sis mea ntto assist youin avoidi ng a
col lisi on. G
WA
RNING
A cou rse-corr ectingbra keapplica tioncan-
not alwa yspre vent acol lisi on. Thereisaris k
of an acc ident.
Alw aysstee r,bra keoracc elera teyoursel f,
esp ecially ifActiv eBli nd Spo tAssi stwa rns
yo uor ma kes acou rse-corr ectingbra ke
ap plica tion.Alw aysma inta inasa fe dista nce
at the side s. If
acou rse-corr ectingbra keapplica tion
occu rs,red warning lamp 0043flashe sin the
exte riormir ror and adu alwa rning tone
sou nds .In additio n,disp lay0044 und erlining the
da nge rof aside collisi on appe arsin the multi-
fu nctio ndisp lay.
In ver yra re cas es, the system mayma kean
ina pprop riate bra keapplica tion.Acou rse-cor-
recti ngbra keapplica tionma ybe inte rrupte d
at any time ,e.g .if yo ustee rsl ig htl yin the
op po site directi onordepre ssthe accelera tor
pe dalmor efir mly .
The course-corr ectingbra keapplica tionis
av ailabl e in the spee dra nge betwe en20 mph
(30 km/h )and 120 mph (200km/h ). 18
8 Dr
ivi ng system sDrivi ng andparki ng

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 201 ).
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
189Drivi 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. 190
Drivi
ngsystemsDrivi ngand parking