sensor MERCEDES-BENZ A-CLASS SEDAN 2020 User Guide

The
inside rear vie wmir rorand theoutside mir‐
ro ron thedr iver's side willautomaticall ygo into
anti- glar emode iflight from aheadlam phit sth e
sensor ontheinside rear vie wmir ror.
Sy stem limit s
The system will notgo intoanti- glar emode if:
R The engineisswit ched off.
R Reversege ar iseng aged.
R The interior light ingisswit ched on. Fr
ont- passeng erout side mirrorpar kingpos i‐
tio nfun ction %
The parking posit ionisavailable onlyin vehi‐
cles withamemor yfunct ion.
The parking position makespar king easier .
The front- passeng eroutside mirrorwil lswiv el
do wn wardsin thedir ect ion ofthere ar wheel on
th efront passeng er'sside when:
R The parking position isstor ed (/ page12 4).
R Thefron t-pa ssenger mirror isselect ed.
R Reversege ar iseng aged. The
fron t-passe nger out side mirrorwil lmo ve
bac kto its original positionwhen:
R Youshif tth etra nsmiss iontoano ther tra ns‐
mission position.
R Youar etrave ling ataspeed great erthan
9 mp h(1 5 km/h).
R Youpr ess thebutt onforth eoutside mirror
on thedr iver's side. St
oring thepa rking posit ionofthefront-
pa sseng erout side mirrorusi ng reve rsege ar St
oring #
Press butt on1 toselect thefront -
passeng eroutside mirror. #
Eng agere ve rsege ar. #
Movethefront -passen geroutsi demir rorint o
th edesir edpar king position usingbutton2. 12
4
Light andvisib ility

Secur
ingtheengine agains tst ar ting before
car rying out maintenance orrepair work: #
Swi tchon thehazar dwa rning light s.
or #
Unloc kth edoor s.
or #
Open aside windo wor thesliding sunroof. Br
eaking-in notes To
preser vetheengine during thefirs t
1, 000 miles(1 ,500 km):
R Drive at varying road spee dsand engine
spee ds.
R Drive th eve hicle indrive pr ogr am A
or ;.
R Shif tto thene xt highes tge ar attheve ry lat‐
es twhen theneedle reac hes thelas tth ird
bef oreth ere dar ea intheta ch ome ter.
R Donotshi ftdo wn age ar man uallyin order to
br ak e.
R Avoid overstrai ning theve hicle, e.g.driving at
full thro ttle . R
Vehicl eswith automatic transmiss ion:Do
no tdepress theaccelera torpeda lbe yond the
pr essur epoint (kickdo wn).
R Onlyincr ease theengine speedgradually and
accelera tetheve hicle tofull spee daf te r
1, 000 miles(1 ,500 km).
This also app lieswhe nth eengine orpar tsof the
dr ivet ra in have been replaced.
Please alsoobser vethefo llo wing breakin g-in
no tes:
R Incer tain drivin gand drivin gsaf etysy stems,
th esensor sadjus taut omaticall ywhile acer‐
ta in dis tance isbe ing driven afte rth eve hicle
has been delivered orafte rre pair s.Fu llsy s‐
te m effectiv enes sis no tre ac hed untilth e
end ofthis teac h-in proce ss.
R Brak epads ,br ak edisc sand tires that are
eit her newor have been replaced onlyac h‐
ie ve optimum braking effect and grip afte r
se veralhundr edkilom eter sof driving. Com‐
pensat efo rth ere duced braking effect by
appl ying grea terfo rc eto thebr ak epedal. No
teson driving &
WARNIN GRisk ofacci dent dueto
object sin thedr iver's foot we ll
Obj ectsin thedr iver's foot we llma yim pede
pedal trav el or bloc kadepr essed pedal.
This jeopar dizestheoper ating androad
saf etyof theve hicle. #
Stow allobj ect sin theve hicle secur ely
so that they canno tget intoth edr iver's
fo ot we ll. #
Alw aysins tallth efloor mats securely
and asprescr ibed inorder toensur e
th at ther eis alw ayssuf ficie ntroom for
th epedals. #
Donotuse loose floor mats anddonot
place floor mats ontopof one another. 13
4
Driving and parking

St
andb ymode (ext ens ion ofthe star terbat‐
te ry 's per iod out ofuse) St
andb ymode function
% This function isno tav ailable forall model s.
If standb ymode isact ivat ed, energyloss willbe
min imiz eddur ing ex tende dpe riods ofnon- oper‐
ation.
St andb ymode isch aract erize dby thefo llo wing:
R thest ar terbatt eryis preser ved.
R themaximum non-opera tionaltime appear s
in themedia display.
R thecon nect iontoonline services isint erru p‐
te d.
R theAT A(anti-t heftal ar m system) isno tav ail‐
able.
R theint erior motion sensor andtow- aw ay
alar mfun ction sar eno tav ailable.
R thefunc tion forde tecting damag eon a
pa rked vehicle isno tav ailable. If
th efo llo wing condition sar efulf illed, standb y
mode canbeact ivat ed ordeac tivated usin gth e
multime diasystem:
R theengine isswitc hedoff.
R theignition isswitc hedon.
Ex ceeding theve hicle's displayednon -opera ‐
tion altime maycause inconvenie nce, i.e.it can‐
no tbe guarant eedth at thest ar terbatt erywil l
re liably star tth eengine.
The star terbatt erymus tbe charge dfirs tin the
fo llo wing situat ions:
R The vehicle's non-oper ational timemustbe
ex tende d.
R The Batte ryCh arg eInsu fficie ntfor Stand by
Mod emes sage appear sin themedia display.
% Standb ymode isaut omat icallydeac tivated
when theignition isswitc hedon.
Ac tiv atin g/deac tivatin gst andb ymode (park‐
ing theve hicl efo ran extended period)
Re quirement s:
R The engin eis switc hedoff. Multime
diasystem:
4 © 5
Set ting s5
Vehicle #
Switc hSt andby Modeonoroff.
When youact ivat eth efunc tion,a pr om pt
appear s. #
Select Yes.
St andb ymode isact ivat ed. Dr
iving anddriving safetysy stems Dr
iving systems andyour responsibility Yo
ur vehicle iseq uipped withdr iving systems
whic hassis tyo uin drivin g,par kingand man eu‐
ve ring theve hicle. Thedriving systems areaids
and donotre lie ve youof your responsibili typer‐
ta inin gto road traf fic law. Payatt ention tothe
tr af fic condi tions atalltime sand interve ne
wh en nece ssary.Be awareof thelimit ations
re ga rding thesaf euse ofthese systems. Inf
ormat iononradar and ultrasonic senso rs Some
drivi ng and drivi ng safety systems use
ra dar orultr asonic sensorsto monit orthear ea Dr
iving andparking 15
9

in
front of,behin dor next to theve hicle (depend‐
ing ontheve hicle's equipment).
Depending ontheve hicle's equipment, thera dar
sensor sar eint egr ated behind thebum pers
and/or behindthera diat orgrill. The ultrasonic
sensor sar elocat edinthefront and rear bum p‐
er s. Ke ep these partsfree ofdir t,ice and slush
(/ page39 7). The sensor smus tno tbe cov‐
er ed, forex am ple bybicy clerack s, ove rhang ing
loads, sticke rs,fo ilor foils toprotect agains t
st one chipping .Ad dition allicense platebr ac ket
can like wise impair thefunc tion oftheultr asonic
sensor s.In theev ent ofdamag eto thebum pers
or radiat orgrill, orfollo wing acollis ionimpact ing
th ebum persor radiat orgrill, have thefunc tion
of thesensor sch eckedat aqu alif ied spec ialist
wo rkshop. Ifth esensor sar edamag ed,some
dr iving systems anddriving safetysy stems may
no long erfunc tion proper ly. Ov
ervie wof driving systems anddriving
saf etysy stems In
this sect ion, youwill find informa tionab ou t
th efo llo wing drivin gsy stems anddriving safety
sy stems:
R 360° Camer a(/ page19 5)
R ABS (Anti-loc kBrak ingSyst em)
(/ page16 1)
R ActiveDis tance AssistDIS TRONI C
(/ page 172)
R ActiveBr ak eAssi st(/ pag e16 4)
R ActiveLa ne Keeping Assist(/ page21 1)
R Start-of fassis t(/ page18 6)
R ATTENTION ASSIST(/ page204)
R BAS(Bra keAssis tSys tem) (/ page16 1)
R Hill StartAs sis t(/ page18 5)
R Sus pens ion wi th adap tivedam pingadjus t‐
men t(/ page18 7)
R EBD (Ele ctronic Brakeforc eDis tribution)
(/ page16 4) R
ESP ®
(E lectr oni cSta bility Program)
(/ page16 1)
R ESP ®
Cr ossw indAssis t(/ page16 4)
R ActiveSpe edLimi tAssi st(/ pag e17 6)
R HOLD function (/page18 5)
R STEER CONTR OL(/ page 164)
R ActiveSt eer ing Assis twit hre scue lanefunc‐
tion (/page17 9)
R ActiveEmerg encyStop Assis t(/ page18 2)
R ActivePa rking Assist(/ page19 8)
R Parking AssistPA RK TRONI C(/ page18 7)
R Rear vie wcam era(/ page19 2)
R ActiveLa ne Chang eAssi st(/ pag e18 1)
R Cruise contr ol(/ page17 0)
R Blind Spo tAssi stand ActiveBli nd Spo tAssi st
wit hex itwa rning (/ page208)
R Traf fic Sign Assist(/ pag e206 ) 16
0
Driving and parking

R
Activati on byan abr uptst eer ing movement
dur ing asw erving maneu ver.
R Assi stanc edur ing swervin gand stra ight enin g
of theve hicle.
R React ion from aspee dof appr oximat ely
12 mp h(20 km/h) uptoaspee dof appr ox‐
imat ely43 mph(70 km/h).
Yo ucan preve nttheassis tance atanytime by
act ivel yst eer ing. &
WARNIN GRisk ofan acci dent despite
Ev asive St eer ing Assis t
Ev asiv eSt eer ing Assis tcann otalw aysclear ly
ident ifyobje ctsand complextraf fic situ a‐
tions .
In addition, thesteer ing suppor tof Evasiv e
St eer ing Assis tis ge ner ally no tsu fficien tto
av oid acollision.
In suc hcases Evasiv eSt eer ing Assis tcan:
R givean unnec essarywa rning orprov ide
assis tance R
notgi ve awa rning ornotpr ov ide assis‐
ta nce #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation; donotre ly on Evasiv e
St eer ing Assis talone. #
Beready tobrak eand take evasiv e
act ion ifnec essar y. #
Preve nttheassis tance byact ivel y
st eer ing innon -critical driving situa‐
tion s. #
Drive at an appr opriatespeed ifpedes‐
tr ians areclose tothepat hof your vehi‐
cle. Sy
stem limit s
Fu llsy stem perform anc eis no tav ailable fora
fe w sec ond saf te rswitc hingontheignition or
af te rdr iving off.
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions:
R Insno w,rain, fog, hea vyspr ay,if th er eis
gl ar e, indir ect sunlight oringrea tly varying
ambien tlight . R
Ifth esensor sar edir ty,fo gg ed up, damag ed
or covered.
R Ifth esensor sar eim pair eddue tointerfer‐
ence from other radar sour ces, e.g.stro ng
ra dar reflect ions inpar king garage s.
R Ifaloss oftirepr essur eor afa ulty tirehas
been detected and displ aye d.
R Incom plextraf fic situ ations whereobject s
cann otalw aysbe clear lyidentif ied.
R Ifpedes trians orvehicles movequickl yint o
th esensor detection rang e.
R Ifpe destrians arehidde nby other objects .
R Ifth etypical outline ofapedes trian cann ot
be distinguished from thebac kground.
R Ifapedes trian isno tde tected assuch ,e.g.
due tospecial clothing orother object s.
R Onbends withatight radius.
% The ActiveBr ak eAssi stsensor sadjus taut o‐
matically whileacer tain dis tance isbe ing
dr iven afte rth eve hicle hasbeen delivered.
Ac tiveBr ak eAssi stisuna vailable oronl y
par tiall yav ailable during this teac h-in per iod. Dr
ivin gand parking16
9

ve
hicles withth eDr iving Assistance Packag e, in
th era ng ebe twee n15 mp h(20 km/h) and
13 0mp h(210 km/h) .
Ot her featur esofActiveDis tance Assist
DIS TRONI C:
R Adjus tsthedr iving style depending onthe
select eddrive pr ogr am (fuel efficie nt, com‐
fo rtable ordynam ic)(/ page13 9)
R Vehicl eswith Drivin gAss istanc ePa ck‐
ag e:react sto statio naryve hicles detected in
urb anspe edrang es (exc ep tbicy cles and
mo torcyc les)
R Initiates acc eler ation tothestor ed speed if
th etur nsignal indicat orisswitc hedonto
ch ang eto theove rtakin glane
R Vehicl eswith Drivin gAss istanc ePa ck‐
ag e:take sone-sided overtakin gre strictions
int oacco untonhighwaysor on multi-lane
ro ads withsepar atero adw ays(countr y-
dependen t)
Ve hicl eswith Activ ePa rking Assis tand Driv‐
ing Assis tance Packag e:ifth eve hicle has
been brak ed toast ands tillon mult i-lane,sepa‐ ra
te roadw aysby ActiveDis tance Assist
DIS TRONI C,itcan automatical lyfollo wtheve hi‐
cle infront driving offag ain within 30seconds. If
a cr itical situation isde tected whe ndr ivi ng off,a
vis ualand acoustic warning isgiv en indic ating
th at thedr iver mus tno wtak econ trol of theve hi‐
cle. The vehicle isno tacceler ated anyfur ther.
Ac tiveDis tance AssistDIS TRONI Cis only anaid.
The driver isresponsible forke eping asaf edis‐
ta nce totheve hicle infront, forve hicle speed
and forbr aking ingood time.
Sy stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions:
R Insno w,rain, fog, hea vyspr ay,if th er eis
gl ar e, indir ect sunlight oringrea tly varying
ambien tlight .
R The windsh ieldinthear ea ofthecamer ais
dir ty,fo gg ed up, damag edorcovered.
R Ifth era dar sensor sar edir tyor covered.
R Inpar kingga rage sor on roads withsteep
uphill ordownhill gradients. R
Ifth er ear enar row vehicles infront, suchas
bicy cles ormo torcyc les.
In addition ,on slipper yro ads, brakin gor acc el‐
er atin gcan caus eon eor severalwheels tolose
tr act ion and theve hicle could then skid.
Do notuse ActiveDis tance AssistDIS TRONI Cin
th ese situation s. &
WARNIN GRisk ofacci dent from acce ler‐
ati on orbraki ng byActiveDis tance
Assi stDIS TRONI C
Ac tiveDis tance AssistDIS TRONI Cma yacc el‐
er ateor brak ein thefo llo wing cases ,fo r
ex am ple:
R Ifth eve hicle pullsaway usin gAc tiveDis ‐
ta nce AssistDIS TRONI C.
R Ifth estor ed speed iscalled upand is
consider ablyfa ster or slo werth an the
cur rently driven spe ed.
R IfAc tiveDis tance AssistDIS TRONI Cno
lo ng er detects ave hicle infront ordoes
no tre act toreleva nt objects. Dr
iving and parking 17
3

#
Alw ayscar efully observethetraf fic con‐
di tions andbeready tobrak eat all
times. #
Take intoacc ount thetra ffic situat ion
bef orecallin gup thestor ed speed. &
WARNIN GRisk ofacci dent dueto insuf ‐
fi cie ntdece lera tio nby ActiveDis tance
Assi stDIS TRONI C
Ac tiveDis tance AssistDIS TRONI Cbrak es
yo ur vehicle withup to50% ofthemaximum
possible deceleration.Ifth is decele ratio nis
no tsu fficien t,Ac tiveDis tance Assist
DIS TRONI Caler ts youwit havis ual and
aco ustic warning. #
Inthese cases, adjustyo ur spee dand
ke ep asuf ficie ntdist anc e. #
Brak eth eve hicle yourself and/or take
ev asiv eact ion. &
WARNIN GRisk ofacci dent ifde tection
functi onofActiveDis tan ceAssi st
DIS TRONI Cis impai red
Ac tiveDis tance AssistDIS TRONI Cdo es not
re act orhas alimit edreact ion:
R when drivin gon adif fere nt lane orwh en
ch ang inglane s
R topedes trians, animals, bicycles orsta‐
tio nar yve hicles, orune xpect edobs tacle s
R tocom plex traf fic condi tions
R tooncom ingvehicles andcrossing traf fic
As are sult, ActiveDis tance Assist
DIS TRONI Cma ynei ther giv ewa rnings nor
int erve ne insuch situations. #
Alw aysobser vethetra ffic con dition s
car efull yand react accordin gly. Oper
ating Activ eDi stance AssistDI ST RO NIC
Re quirement s:
R The vehicle hasbeen star ted.
R The elect ric pa rking brak eis released.
R ESP®
is act ivat ed and isno tint erve ning . R
The trans mis sion isin po sitio n005B.
R The driver' sdo or isclo sed .
R Checkof thera dar sensor system has been
success fullycom pleted.
R Parking AssistPA RK TRONI Cis no tbein g
used topar kth eve hicle ortoexitfrom a
par kingspace.
R The vehicle does notskid. 17
4
Driving and parking

If
th eassis tance grap hicis sho wnwhen chang ‐
ing lane s,thelane chang edispla yappear swit h
an addit ionalarrow point ingtowa rdsth eadja‐
cent lane(/page18 3).
If alan ech ang eis no tposs ible, thear ro w fades
out afte ra fe w sec ond sand ane wlane chang e
mus tbe init iated. Animm ediat elane chang eis
on lypossible onfree wa ysec tion swit hout speed
limi ts.
If th esy stem isim pair ed,ActiveLa ne Chang e
Assi stma ybe canceled .If it is canceled ,th e
Lane Change Cancel edmessag eappe arsin the
multifu nctiondisplay and awa rning tone sou nds. &
WARNIN GRisk ofacci dent from chang ‐
ing lane toan occ upied adjacentlane
Lan eChan geAssi stcanno tal wa ys detect
cle arly ifth eadjacen tlane isfree.
The lane chang emigh tbe init iated although
th eadjacen tlane isno tfr ee. #
Beforech ang inglane s,mak esur eth at
th eneighbor inglane isfree and ther eis
no dang ertoother road user s. #
Mon itor thelane chang e. &
WARNIN GRisk ofacci dent ifLane
Ch ang eAssi stune xpectedl yst ops func‐
tionin g
If th esy stem limit ations forLane Change
Assis tha ve been reac hed, ther eis no guar‐
ant eethat thesy stem will remain active.
Lane ChangeAssis tcanno tth en assis tyo u
by appl ying steer ing torq ues . #
Alw aysmonit orthelane chang eand
ke ep your han dson thesteer ing wheel.
Obser vethetra ffic con dition sand steer
and/or brak eif neces sary. Sy
stem limit s
The system limit ations ofActiveSt eer ing Assis t
apply toActiveLa ne Chang eAssi st
( / pag e17 9). Th
esy stem mayalso beimpair edorma yno t
func tion inthefo llo wing situat ions:
R The sensorsin there ar bum peraredir ty,
damag edorcoveredby ast icke ror ice and
sno w,forex am ple.
R The exterior lighting showsafa ult.
% The ActiveLa ne Chang eAssi stsensor s
adjus taut omaticall ywhile acer tain dis tance
is be ing driven afte rth eve hicle hasbeen
deliv ered. ActiveLa ne Chang eAssi stis
una vailable oronl ypar tiall yav ailable during
th is teac h-in proce ss;noarro w appear sne xt
to theØ ActiveSt eer ing Assis tsymbol
when thetur nsignal indicat orisactiv ated.
Ac tiv atin g/deac tivatin gAc tiv eLan eCha nge
As sist
Multimedia system:
4 © 5
Set ting s5
Assist ance
5 Act ive Lane Change Assist #
Activateor deacti vate thefunc tion.
Fu nction ofActiv eEme rgency Stop Assis t
If th edr iver con tinuall yignor esthevisual or
acous ticwarning toput their hands onthesteer‐ 18
2
Driving and parking

Ac
tiv atin gthe star t-of fassi st &
WARNIN GRisk ofskid ding and having
an acci dent from whe elsspi nning
Whe nyo uuse star t-of fassis t,ind ividual
wheels couldspin andyouco uld lose contro l
of theve hicle.
If ESP ®
is deactiv ated, ther eis arisk ofskid‐
ding andaccident! #
Mak esur eth at no per son sor obs tacles
ar ein theclose vicinit yof your vehicle. #
Deactiv atingESP®
(/ page16 3). #
Movethesteer ing wheel tothest ra ight -
ahead position. #
Depr essthebr ak epedal firm lywith your left
fo ot and keep itdepr essed. #
Engage the005B drive position (/page14 4). #
Select thespor tiestav ailable drive pr ogram
B orC(/ page14 0). #
Rapidl ydepr esstheacceler ator pedal fully. #
Take your foot offth ebr ak e, but keep the
acc elerat orpedal depresse d.
The vehicle pullsaway atmax imum acceler a‐
tio n. #
Swit chon ESP ®
once theaccelera tionproce‐
dur eis com plete.ESP ®
wi llot her wise notbe
able tostabiliz eth eve hicle ifth eve hicle
st ar ts to skid orawheel star ts to spin.
Cancel ingstar t-of fassi st #
Remo veyour foot from theacceler ator pedal. #
React ivat eth eES P®
. Fu
nction ofada ptive dam ping adjustm ent Suspen
sionwithadap tivedam ping adjus tment
con tinuously adjuststhech aract eristic sof the
suspension dampersto thecur rent operati ng
and drivi ng cond itions.
The damp ing issetindiv iduall yfo reac hwhee l
and isaffect ed bythefo llo wing fact or s:
R The road sur face condi tions
R Vehicle load
R The drive pr ogr am select ed R
The driving style
The drive pr ogr am can beadjus tedusing the
DY NA MIC SELE CTswitc h. Pa
rking Assis tPA RK TRONI C Fu
nction ofParking Assis tPA RK TRONI C Pa
rking AssistPA RK TRONI Cis an elec tron ic
par kingassi stanc esy stem withultr asound. It
monit orsth ear ea around your vehicle using mul‐
tiple sensor s1 onthefront bum perand onthe
re ar bum per.Pa rking AssistPA RK TRONI Csho ws
yo uth edis tance betwee nyo ur vehicle anda
de tected obs tacle visually and audibly . Dr
iving and parking 18
7

R
Orang esegments: obstacle sat adi st anc e
be tween appr ox.1. 0 ft (0.3 m)and 2.0ft
(0.6 m)
R Redse gme nts: obstacle sat ave ry shor t
dis tance ofapprox .1. 0 ft (0.3 m)orless
Displa yof Activ ePa rking Assis tPA RK TRONI C
in the Head-u pDi spla y Op
tiona lly,obs tacle sde tected byActivePa rking
Ass istPA RK TRONI Cfrom adis tance ofapprox ‐
imat ely3. 3ft (1.0 m) infront 2and 2.0ft (0.6
m)onthesides 3can also bedispla yedin
th eHead-up Display.
Sy stem limit s
Pa rking AssistPA RK TRONI Cdoes notne cessa‐
ri ly take intoacc ount thefo llo wing obstacle s:
R Obs tacle sbel ow thede tection rang e, e.g .
pe rsons, animals orobject s.
R Obs tacle sab oveth ede tection rang e, e.g .
ove rhang ingloads, overhang sor loadin g
ra mp sof truc ks.
The sensor smus tbe free ofdir t,ice and slush.
Ot her wise, they ma yno tfunction correctly .
Cl ea nth esensor sre gular ly,ta king careno tto
scr atc hor damag eth em. Pr
oblems withPa rking Assis tPA RK TRONI C Ve
hicles without 360° Camer a Ve
hicles with360° Camer a Dr
iving andparking 18
9