2020 MERCEDES-BENZ SL CLASS brake

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 24
Genuine
Mercedes-Benz partsIntrodu ction

have
notbeen approved byMercedes-Ben z.
This could leadtomalfunctions insafety-rele-
vant systems, e.g.thebrake system. Useonly
genuine Mercedes-Ben zparts orparts ofequal
qual ity.Only usetires, wheels andaccessories
that have been specifically approvedforyour
vehicle.
Genuine Mercedes-Ben zparts aresubject to
strict qualitycont rol.Every parthasbeen spe-
cifically developed, manufactured orselected
for and adapted toMercedes-Ben zvehicles.
Therefore, onlygenuine Mercedes-Ben zparts
should beused.
More than300,000 differentgenuine
Mercedes-Ben zparts areavaila blefor
Mercedes-Ben zmodels.
All authorized Mercedes-Ben zCenters main-
tain asupply ofgenuine Mercedes-Ben zparts
for necessary serviceandrepair work.Inaddi-
tion, strategically locatedpartsdelivery cen-
ters provide quickandreliabl eparts service.
Always specify thevehicle identification num-
ber (VIN) when ordering genuineMercedes-
Benz parts (Ypage 323). Operat
or'sManual Vehicle
equipment
i This
Operator's Manualdescribes allmod-
els and allstandard andoptional equipment
of your vehicle availableatthe time ofgoing
to print. Country-specific differencesare
possible. Bearinmind thatyour vehicle may
not feature allfunct ionsdescribed here.
This also appli estosafety-relevant systems
and funct ions. Theequipment inyour vehi-
cle may therefore differfromthatshown in
the descriptions andillustrations .
The original purchase agreement listsallsys-
tems installed inyour vehicle.
Should youhave anyquestions concerning
equipment andoperation, pleaseconsult an
authorized Mercedes-Ben zCenter.
The Operator's ManualandMaintenanc e
Booklet areimportant documents andshould
be kept inthe vehicle. Service
andvehicle operation Warr
anty
The implied warranty foryour vehicle applies
in accordance withthewarranty termsand
conditions inthe Service andWarranty Infor-
mation booklet.
Your authorized Mercedes-Ben zCenter will
replace andrepair allfactory-in stalledpartsin
accordance withthefollowing warrantyterms
and conditions :
R New Vehicle Limited Warranty
R Emission SystemWarranty
R Emission Performance Warranty
R Cali fornia, Connect icut,Maine, Massachu-
setts, NewYork, Pennsylvania, RhodeIsland
and Vermont Emission ControlSystem War-
ranty
R State warranty enforcem entlaws (lemon
laws)
Repla cement partsandaccessories arecov-
ered bythe Mercedes-Ben zParts andAcces-
sories warranties. Theseareavaila bleatany
authorized Mercedes-Ben zCenter.
i Should
youlose your Service andWarranty
Inform ationbooklet, haveanauthorized
Mercedes-Ben zCenter arrange fora
replacement. Thenew Service andWarranty
Inform ationbooklet willbeposted toyou. Informat
ionforcustomers inCalifor-
nia
Under California lawyou may beentit ledtoa
replacement ofyour vehicle orarefund ofthe
purchase priceorlease price, ifafter areason-
able number ofrepair attempt sMercedes-
Benz USA, LLCand/or itsauthorized repairor
service facilities failtofix one ormore sub-
stant ialdefects ormalfunctions inthe vehicle
that arecovered byits express warranty.
During theperiod of18 mont hsfrom original
delivery ofthe vehicle orthe accumulation of
29,000 km(approximately 18,000miles)on
the odometer ofthe vehicle, whichever occurs
first, areasonable numberofrepair attempt s
is presumed foraretail buyer orlessee ifone
or more ofthe following occurs:
(1) thesame substantial defectormalfunc-
tion results inacondition thatislikely to Service
andvehicl eoperat ion
25Introduct ion Z

R
malfu nctions anddefects inimporta ntsys-
tem components, e.g.lights,brakes
R vehicl ereactions andopera tingconditions
in specia ldrivi ngsitua tions, e.g.airbag
depl oyme nt,intervention ofstabi litycontrol
systems
R ambi entconditions, e.g.outsid etempera -
ture
This data isof an exclusi velytechnical nature
and canbeused to:
R assi stinrecognizing andrectifyi ngmalfu nc-
tions anddefects
R anal yzevehicl efunctions, e.g.after anacci-
dent
R optimize vehiclefunctions
The data cannot beused totrace thevehicl e's
movements.
When yourvehicl eis serviced ,technical infor-
mation canberead from theevent datamem-
ory and malfu nction datamemory .
Services include,for exampl e:
R repa irservices
R service processe s
R warra nties
R qua lityassu rance
The vehicl eis read outbyemplo yeesof the
service network (includingthemanufa cturer)
usi ng specia ldia gnostic testers. Moredetailed
informatio nis obtai nedfrom it,ifrequ ired.
After amalfu nction hasbeen rectified ,the
informatio nis dele tedfrom themalfu nction
memory oriscontinual lyoverwri tten.
When operatingthevehicl e,situa tions are
conceivab lein which thistechnical data,in
connection withother informatio n(if neces-
sary ,under consulta tionwith anauthorized
expert), couldbetraced toaperson.
Examples include:
R accide ntreports
R dama getothe vehicl e
R witness statements
Further additional functions thathave been
contractuall yagree dupo nwith thecustomer
all ow certain vehicledata tobe conveyed by
the vehicl eas wel l.The additional functions
includ e,for exampl e,vehicl elocati onincase
of an emergency . COMA
ND/Me rcedesmeconne ct
(Can ada: TELE AID)
If the vehicl eis equ ippe dwith COMAND or
Mercede sme connect, additional dataabout
the vehicl e'sopera tion,theuse ofthe vehicl e
in certain situations, andthelocatio nof the
vehicl eis compil edthrough COMAND orthe
Mercede sme connect system.
For additional informatio n,plea serefer tothe
COMAND UserManua lor Digital Operator's
Manua land/or theMercede sme connect
Terms andCondi tions. Eve
ntdata recorders
USA only:
This vehicl eis equ ippe dwith anevent data
recorder (EDR).Thisvehicl eis equ ippe dwith
an event datarecorder (EDR).Themain pur-
pose ofan EDR isto record, incertain crashor
near crash-li kesitua tions, suchasan air bag
depl oyme ntor hitting aroad obstacl e,data
that willassi stinundersta ndinghowavehi-
cle's systems performed .The EDR isdesi gned
to record datarelated tovehicl edyna mics and
safety systems forashort periodof time, typi-
call y30 seconds orless.
The EDR inthis vehicl eis desi gned torecord
such dataas:
R How varioussystems inyou rvehicl ewere
opera ting
R Whether ornot thedriver andpass enger
safety beltswerebuckle d/fastened
R How far(ifat all)the driver wasdepre ssing
the accele ratorand/or brakepedal;and,
R How fastthevehicl ewas traveli ng
These datacanhelp provid eabetter under-
standing ofthe circumstances inwhich
crashes andinjurie soccur. NOTE:EDRdata
are recorded byyou rvehicl eonly ifanon-triv-
ial crash situationoccurs; nodata arerecor-
ded bythe EDR under normal drivingcondi-
tions andnopersona ldata (e.g.name, gender,
age and crash location)are recorded .How-
ever, other parties,such aslaw enforcement
could combine theEDR data withthetype of
persona llyidentify ingdata routinel yacqu ired
duri ngacrash investiga tion.
Access tothe vehicl eand/or theEDR isnee-
ded toread datathatisrecorded byan EDR,
and specia lequ ipment isrequ ired. Inadd ition 30
Data
storageIntroductio n

R
setting amore favorable seatposition for
the front -passenger seat.
R vehicles withamulticontour seat:increasing
the airpressure inthe side bolsters ofthe
seat backrest.
! Make
surethatthere arenoobjects inthe
footwell orbehind theseats. Thereisadan-
ger that theseats and/or objects couldbe
damaged whenPRE-SA FE®
is activated.
Should anaccident notoccur, thepreventative
measures takenarereversed. Certainsettings
must bemade yoursel f.
X Ifthe seat beltpre-tensionin gis not
reduced, movetheseat backrest back
slightly.
Seat beltpre-tensionin gis released . PRE-SAFE
®
PLUS (anticipatory occu-
pant protection systemPLUS)
Introduction PRE-SA
FE®
PLUS isonly available invehicles
with theDriving Assistance package.
Using theradar sensor system, PRE-SAFE®
PLUS isable todetect thatahead-on orrear-
end collision isimminent. Incertain hazardous
situations, PRE-SAFE®
PLUS takes pre-emptive
measures toprotect thevehicle occupants.
Importa ntsafety notes The
intervent ionofPRE-SA FE®
PLUS cannot
prevent animminent collision.
The driver isnot warned abouttheintervent ion
of PRE-SA FE®
PLUS.
PRE-SA FE®
PLUS doesnotintervene ifthe
vehicle isbacking up.
When driving, orwhen parking orexiting a
parking spaceusingActive Parking Assist,
PRE-SA FE®
PLUS willnotapply thebrakes.
Function PRE-SA
FE®
PLUS intervenes incertain situa-
tions ifthe radar sensor system detects an
imminent head-onorrear-end collision. PRE-SA
FE®
PLUS takes thefollowi ngmeas-
ures depending onthe hazardous situation
detected:
R ifthe radar sensor system detects thata
head-on collision isimminent, theseat belts
are pre-tensioned.
R ifthe radar sensor system detects thata
rear-end collisionisimminent:
- the brake pressure isincreased ifthe
driver appliesthe brakes whenthevehicle
is stationary.
- the seat belts arepre-tensioned.
The PRE-SA FE®
PLUS braking application is
canceled:
R ifthe accelerator pedalisdepressed whena
gear isengaged
R ifthe risk ofacollision passesorisno lon-
ger detected
R ifAct ive Distance AssistDISTRONIC indi-
cates anintent iontointervene
If the hazardous situationpasseswithout
resulting inan accident, theoriginal settings
are restored. Automatic
measuresafteranacci-
dent
Immediately afteranaccident, thefollowi ng
measures areimplemented, dependingonthe
type andseverity ofthe impact:
R the hazard warning lampsareswitched on
R the emergency lightingisactivated
R the vehicle doorsareunlocked
R the front sidewindows arelowered
R the electrically adjustablesteeringwheelis
raised whenthedriver's doorisopened
R the engine isswitched offand thefuel sup-
ply iscut off
R vehicles withMercedes meconn ect:auto-
matic emergency call 56
Occ
upant safetySafety

Alw
ayssec ureani ma lspro perly when driv-
ing ,for instance with asu ita ble pe tcar rier. Dri
ving safe tysys tems Ove
rviewof driv ingsafe tysys tems
In thi ssec tion,youwi llfind informa tionab ou t
the followi ng driving safety system s:
R ABS (Anti -lock Bra king Syste m)
(Y page 60)
R BAS (Bra keAssist Sy stem )(Y page 61)
R Bra keAssi stwith cros s-tra fficfu nctio n
(Y page 61)
R Active BrakeAssi st(Y page 63)
R Ada ptive bra kelights (Ypage 65)
R ESP ®
(El ectro nicStability Pro gram)
(Y page 65)
R EBD (El ectro nicBrake forceDi stri butio n)
(Y page 69)
R ADAPTI VEBRAK E(Y page 70)
R Active BrakeAssi stwith cros s-tra fficfu nc-
tio n(Y page 70)
R STEER CONTR OL(Ypage 72) Impo
rtant safetynotes
If yo ufai lto adap tyo ur driving styleor ifyo u
ar eina ttenti ve,the driving safety system scan
nei ther reduce theriskof an acci dent nor
ove rride the laws ofphy sics. Driv ingsafety
sy stem sar emer elyai ds designe dto assist
dri ving .
Yo uar eres ponsi ble for mainta ining the dis-
tance tothe vehiclein front, forveh iclespe ed,
for braking ingoo dtime ,and forstaying in
la ne. Alwaysad aptyo ur driving styleto suit
the prevailing roadand weath ercond itions and
ma inta inasa fe dista nce from thevehiclein
front. Drivecar efully.
The driving safety system sde scri bedonl y
wo rkas effe ctive lyas possi ble wh en ther eis
ad eq uate conta ctbetwe enthe tiresand the
roa dsu rfa ce. Paypa rticu laratte ntionto the
info rma tionreg arding tire s,reco mme nded
mini mumtire trea dde pths etc.inthe "Whee ls
and tires"sec tion(Y page 296 ).
In wintry driving cond itions, alwa ysusewi nter
tire s(M +S tire s)and ifnece ssary,snow cha
ins.Onl yin thi swa ywi llthe driving safety
sy stem sde scri bedin thi ssec tionwo rkas
effe ctive lyas possi ble. ABS
(Anti -lock Braki ngSys tem)
Ge neral info rmatio n ABS
regulate sbra kepre ssu reinsuch awa y
tha tthe wheelsdo not lock when youbra ke.
Thi sal lo ws youto conti nuesteering thevehi-
cle when bra king .
The 0025 ABSwarning lamp inthe instrum ent
clu ster lights upwhen the igniti onissw itch ed
on. Itgoe sou twh en the engineisrunning .
ABS works from aspe edofabou t5 mph
(8 km/h ),reg ardless ofroa d-su rface cond i-
tio ns. ABS works onslip pe ry surfa ces ,eve n
wh en youonl ybra kegently .
Impo rtant safetynotes i
Obs
ervethe "Impo rtant safety notes "sec -
tio n(Y page 60). G
WA
RNING
If ABS isma lfunctio ning,the wheelscou ld
lo ck when bra king .The stee rability and
bra king characteri stics wo uld be sev erely
aff ecte d.The reisan incr eased dange rof
ski dding and accidents.
Driv eon car efully. Hav eABS checked imme-
di ate lyat aqu alifi ed spe cialist wo rksh op.
Whe nABS isma lfunctio ning,othe rsy stem s,
incl uding driving safety system s,willal so
be come inoperative .Obs ervethe informa tion
on the ABS warning lamp (Ypage 239 )and
di spl aymes sages which maybe sho wninthe
ins trum entcluster (Ypage 209 ).
Brake s X
IfABS interv enes:conti nuetodepre ssthe
bra kepedalvig oro uslyunti lthe braking sit-
ua tio nis ove r.
X To make aful lbrake application:de pre ss
the brakepedalwi th fullforc e.
If ABS intervenes when bra king ,yo uwi llfee la
pu lsing inthe brakepedal. 60
Dri
ving safe tysys temsSafe ty

The
pulsating brakepedalcanbeanindication
of hazardous roadcondit ions,andfunct ionsas
a reminder totake extracare while driving. BAS
(BrakeAssist System)
General information BAS
operates inemergenc ybraking situations.
If you depress thebrake pedalquickly, BAS
automatically booststhebraking force,thus
shorten ingthe stopping distance.
Import antsafety notes i
Observe
the"Importan tsafety notes" sec-
tion (Ypage 60). G
WARNIN
G
If BAS ismalfunct ioning,thebraking dis-
tanc ein an emergenc ybraking situation is
increased. Thereisarisk ofan accident .
In an emergenc ybraking situation, depress
the brake pedalwithfullforce. ABSprevent s
the wheels fromlockin g.
Br aking X
Keep thebrake pedalfirmly depressed until
the emergenc ybraking situation isover.
ABS prevent sthe wheels fromlockin g.
The brakes willfunct ionasusual onceyou
release thebrake pedal. BASisdeactivated. Br
ake Assist withcross-tr afficfunc-
tion
General information Brake
Assist withcross- trafficfunct ioncan
help youtominimize therisk ofacollision with
a vehicle orapedestrian andreduce the
effect sof such acollision. IfBrake Assist with
cross- trafficfunct iondetect sa danger ofcolli-
sion, youareassisted whenbraking.
i Observe
the"Importan tsafety notes" sec-
tion (Ypage 60).
Brake Assist withcross- trafficfunct ionisonly
availabl ein vehicles withtheDrivin gAssis-
tanc epackage. For
Brake Assist withcross- trafficfunct ionto
assist youwhen driving, theradar sensor sys-
tem andthecamera systemmustbeopera-
tional.
The sensor system andcamera systemhelp
Brake Assist withcross- trafficfunct iondetect
obstacles:
R that areinthe path ofyour vehicle foran
exten dedperiod oftime
R that cross thepath ofyour vehicle
In addition, pedestrians inthe path ofyour
vehicle canbedetect ed.
Brake Assist withcross- trafficfunct iondetect s
pedestrians usingtypical charact eristics such
as body contours andtheposture ofaperson
standin gupright.
If the radar sensor system orthe camera sys-
tem ismalfunct ioning,BrakeAssist withcross-
traff icfunct ionisrestr icted orno longer availa-
ble. Thebrake system isstill availab lewith
complete brakeboosting effectandBAS.
i Observe
therestr iction sdescribed inthe
"Importan tsafety notes" section
(Y page 61).
Import antsafety notes G
WARNIN
G
Act ive Brake Assist withcross- trafficfunc-
tion cann otalway sclearly identify objects
and complex trafficsituations.
In such cases, Active Brake Assist with
cross- trafficfunct ionmight:
R issue anunneces sarywarning orbrake
R issue nowarning ornot brake
Always paycareful attentiontothe traff ic
situation; donot rely onthe Active Brake
Assist withcross- trafficfunct ionalone.
Always beready tobrake andpossibly take
evasive action. G
WARNIN
G
Brake Assist withcross- trafficfunct ioncan-
not alway sclearly identify people,particu-
larly ifthey aremoving. BrakeAssist with
cross- trafficfunct ioncann otinter vene in
these cases. Thereisarisk ofan accident . Driving
safetysystems
61Safety
Z

Alw
ayspa ycar efulatte ntionto the traffic
si tua tionand berea dytobra ke. G
WA
RNING
Active BrakeAssi stwith cros s-tra fficfu nc-
tio ndo es not react:
R to sma llpe op le,e.g .chi ldren
R to ani ma ls
R to onco ming vehicles
R wh en corne ring
As ares ult, Active BrakeAssi stwith cros s-
traf ficfunctio nma ynot warnyouor eng age
in allcriti calsitua tions. The reisaris kof an
acci dent.
Alw ayspa ycar efulatte ntionto the traffic
si tua tionand berea dytobra ke.
In the eventofsnow fallor hea vyrain, the rec-
ogni tioncan beimp aired .
Re cog nitionbythe rada rsens orsystem isalso
imp aired if:
R ther eis dirt on the sens orsorany thing else
cove ringthesens ors
R ther eis inte rference byothe rra da rsou rces
R ther ear estro ngrada rref lectio ns,forexa m-
pl e in pa rking garages
R anar row vehicleis trav eling infront, e.g.a
moto rbike
R aveh icleis trav eling infront onadi ffer ent
li ne
R veh icles quickl ymove intotherada rsens or
sy stem detecti onrange
Re cog nitionbythe cam erasystem isalso
imp aired inthe eventof:
R dirt on the cam eraorifthe cam eraiscov-
ere d
R glar eon the cam erasystem ,e.g .from the
su nbe ing low in the sky R
da rknes s
R or if:
- pe destri ans move quickl y,e.g .into the
pa th ofthe vehicle
- the cam erasystem nolonge rreco gnizes a
pe destri anasape rso ndu eto spe cial
clo thing orothe rob jects
- ape destri anisconce aled byothe r
ob jects
- the typicalou tline ofape rso nis not dis-
ting uisha ble from thebackgro und
Fol lowi ng dama getothe front endofthe vehi-
cle ,ha ve the confi guratio nand opera tionof
the rada rsens orschecked ataqu alifi ed spe -
cia list wo rksh op.Thi sal so appliesto col lisi ons
at slow spe edswh ere ther eis no visible da m-
ag eto the front ofthe vehicle.
Fol lowi ng dama getothe windsh ield ,ha ve the
confi guratio nand opera tionof the cam erasys-
tem checked ataqu alifi ed spe cialist wo rk-
sho p.
Fu nctio n To
avoid acol lisi on, BrakeAssi stwith cros s-
traf ficfunctio ncal cul ate sthe brakeforc enec-
ess aryif:
R youap pro ach anobsta cle,and
R Bra keAssi stwith cros s-tra fficfu nctio nha s
de tecte daris kof col lisi on
Whe ndriv ingat aspe edunde r20 mph
(3 0km/h ):ifyo ude pre ssthe brakepedal,
Bra keAssi stwith cros s-tra fficfu nctio nis acti -
va ted .The increase inbra kepre ssu rewillbe
car riedou tat the last po ssi ble mom ent.
Whe ndriv ingat aspe edabo ve20 mph
(3 0km/h ):ifyo ude pre ssthe brakepedal
sha rply,Bra keAssi stwith cros s-tra fficfu nc-
tio nau toma tically incr eases thebrakepre s-
su re to ade gre esu ite dto the trafficsitua tion.
Bra keAssi stwith cros s-tra fficfu nctio npro -
vid es bra king assista nce inha zard oussitua -
tio ns with veh icles infront withi naspe ed
ra nge betwe en4mph (7km/h )and 155 mph
(25 0km/h ). 62
Dri
ving safe tysys temsSafe ty

Up
toaspeed ofapproximately 44mph
(70 km/h), BrakeAssist withcross-t raffic
function mayreact to:
R stationary objectsinthe path ofyour vehi-
cle, e.g. stopped orparked vehicles
R pedestrians inthe path ofyour vehicle
R obstacles crossingyourpath which movein
the detection rangeofthe sensors andare
detected
i If
Brake Assist withcross-t rafficfunction
requires aparticularl yhigh braking force,
preventative passengerprotectionmeasures
(PRE-SAF E®
)are activated atthe same time
(Y page 55).
X Keep thebrake pedaldepressed untilthe
emergency brakingsituation isover.
ABS prevents thewheels fromlocking.
Brake Assist withcross-t rafficfunction is
deactivated andthebrakes function asusua l
agai nif:
R you release thebrake pedal
R there isno longer arisk ofcollision
R no obstacle isdetected infront ofyour vehi-
cle
R you depress theaccelerator pedal
R you activate kickdown Active
BrakeAssis t
General information i
Observe
the"Important safetynotes" sec-
tion (Ypage 60).
Act ive Brake Assist consists ofadistance
warning function withanautonomous braking
function andAdaptive BrakeAssist.
Act ive Brake Assist canhelp youtominimize
the risk ofacollision withthevehicle infront
or reduce theeffects ofsuch acollision.
If Act ive Brake Assist detects thatthere isa
risk ofcollision, youwillbewarned visually
and acousticall y.Ifyou donot react tothe vis-
ual collision warningorthe warning tone,
autonomous brakingcanbeinitiated incritical
situations. Ifyou apply thebrake yoursel fin a
critical situation, AdaptiveBrakeAssist ofthe
Act ive Brake Assist system supports you. Importa
ntsafety notes In
particular, thedetection ofobstacles canbe
impaired if:
R there isdirt onthe sensors oranything else
covering thesensors
R there issnow orheavy rain
R there isinterferenc eby other radarsources
R there arestrong radarreflections, forexam-
ple inparking garages
R anarrow vehicle istraveling infront ,e.g. a
motorbike
R avehicle istraveling infront onadifferent
line
R you aredriving anew vehicle orservicing on
the Active Brake Assist system hasjust
been carried out
Observe theimportant safetynotesinthe
"Breaking-in notes"section (Ypage 125).
Followi ngdamage tothe front endofthe vehi-
cle, have theconfiguration andoperation of
the radar sensor checked ataqual ified spe-
cialist workshop. Thisalso appli estocollisions
at slow speeds wherethereisno visible dam-
age tothe front ofthe vehicle.
Activating/ deactivating Act
ive Brake Assist isautomaticall yactive
after switching onthe ignition.
You canactivate ordeactivate Active Brake
Assist usingtheon-board computer
(Y page 200). When deactivated, thedistance
warning function andtheautonomous braking
function arealso deactivated.
If Act ive Brake Assist isdeactivated, the00D4
symbol appearsinthe assistance graphicdis-
play .
Distance warningfunction General
information
The distance warningfunction canhelp youto
minimize therisk ofafront -end collision witha
vehicle aheadorreduce theeffects ofsuch a
collision. Ifthe distance warningfunction
detects thatthere isarisk ofacollision, you
will bewarned visuallyand acousticall y. Driving
safetysystems
63Safety Z