2023 MERCEDES-BENZ A CLASS Owners Manual

onl
ypossible onfree wa ysect ionswit hout speed
lim its.
If th esy stem isim pair ed,ActiveLane Change
Assi stma ybe canc eled. Ifit is canc eled, the
Lane Change Cancel edmessag eappear sin the
Ins trumen tDispl ay.
In addit ion,a wa rning tone maysou nd, depending
on thesituation. &
W W
ARNIN G ARNIN
GRisk ofaccident whenchang ing
lane toan occupi edadjace ntlane
Lan eChang eAssis tcann otalw aysclear ly
de tect ifth eadjacent laneisfree.
The lane chang emig htbe initiat edalthoug h
th eadjacent laneisno 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. &
W W
AR NIN G AR
NIN GRisk ofacciden tif Lan eChang e
Assis tune xpect edlyst ops funct ioning
If th esy stem limit ations forLane Chang e
Assist have been reac hed, ther eis no guar an-
te eth at thesy stem will remain active.
Lane Chang eAssis tcanno tth en assist youby
appl ying steer ing torq ue . #
Alwa ys monit orthelane chang eand
ke ep your hands onthesteer ing wheel.
Obser vethetra1c conditions andsteer
and/or brak eif necessar y. Sy
st Sy
stem limits em
limits
The system limitat ions ofActiveSt eer ing Assist
appl yto ActiveLane ChangeAssi st
(/ page171) .
The system mayals obe impair edorma yno tfunc-
tion inthefo llo wing situations:
R The sensor sin there ar bum peraredir ty,dam-
ag ed orcoveredby ast icke ror ice and snow,
fo rex am ple.
R The exterior lightin gsho wsamalf unct ion. %
The ActiveLane ChangeAssi stsens orsadjust
aut oma tically whi leacer tain dist ance isbeing
dr iven aTer theve hicle hasbeen delivered.
Ac tiveLane ChangeAssi stisuna vailable or
onl ypar tiall yav ailabl edur ing this teac h-in
pr ocess; noarro w appear sne xt to theØ
Ac tiveSt eer ing Assist symbol whenthetur n
signal indicat orisactiv ated.
Selecting A Selecting
Activ ctiv
eLane Chang e
Lane Chang eAssist e
Assist
Multimedia system:
4 © 5
Settings 5
Assistance
5 Active LaneChange Assist #
Select thefunction . AA
ctiv ctiv
eBr e
Br ak ak
eAssist e
Assist FF
unction ofA unction
ofActiv ctiv
eBr e
Br ak ak
eAssist e
Assist
Ac tiveBr ak eAssi stcons istsofthefo llo wing func-
tions:
R Dist ance warning function
R Autonomo usbrak ing functi on
R Situa tion-d ependent brak ing assist anc e Dr
iving andparking
175 175

R
V V
ehicles wit ehicles
withDr h
Dr iving Assist iving
Assist anceP ance
Pac k ac
kag ag
e: e:
Eva-
siv eSt eer ing Assist andcorner ing function
Ac tiveBr ak eAssi stcan help youto minimiz eth e
ri sk ofacolli sion withve hicles, cyclis tsor pedes-
tr ians ortoreduce thee.ect sof suc hacollision.
If Ac tiveBr ak eAssi sthas detected arisk ofcolli -
sion ,a wa rning tone sou nds and theL dis-
ta nce warning lamplights upintheinst rument
clust er.
V V
ehicles wit ehicles
withPRE- S h
PRE- SAFE AFE
® ®
: :
dependi ngon thecoun-
tr y, an addit ionalhap ticwarning occur sin the
fo rm ofslight, repeat edtensio ning oftheseat
belt.
If yo udo notre act tothewa rning, autonomous
br aking canbeinitiat edincritical situations.
In especia lly cr itical situations, ActiveBr ak eAssi st
can initiat eaut onomo usbraki ng directl y.In this
case, thewa rning lampand warning tone occ ur
sim ultaneo uslywit hth ebr aking application.
If yo uappl yth ebr ak eyo urself inacr itical situa-
tion orappl yth ebr ak edur ing autonomous brak -
ing, <0054004A0055005600420055004A0050004F000E0045004600510046004F0045
0046004F0055> braking assistance occur
s.The brak epr essur eincr eases uptomaxi-
mum full-sto pbr aking ifnecessar y.
Obser vetheno teson drivi ng systems andyour
re sponsi bility;yo uma yot her wise failto recogn ize
dang ers(/ page155 ). If
aut onomo usbraking orsituat ion-depen dent
br aking assistancehasoccur red, displa y1
appear sin theInstr ument Displayand then aut o-
maticall ygoes outaTer ashor ttime.
If th eaut onomous braking function orthesitua-
tion-dependen tbr aking assistanceistrigg ered,
additional prev entiv emeasur esforoccupant pro-
te ction (PRE-SAFE®
)ma yalso beinitiat ed. &
W W
ARNIN G ARNIN
GRisk ofan accident causedby
limit eddetection perform ance ofActive
Br ak eAssi st
Ac tiveBr ak eAssi stcanno talw aysclear lyiden-
tify objects andcom plextra1c situations.
In suc hcases ,Ac tiveBr ak eAssi stmight :
R Giveawa rning orbrak ewit hout reason
R Notgiv eawa rning ornotbr ak e
Ac tiveBr ak eAssi stisonl yan aid. Thedriver is
re sponsi bleformaint aining asu1cien tly saf e
dist ance totheve hicle infront ,ve hicle speed
and forbr aking ingood time. #
Alwayspa ycar eful att ent ion tothetra1c
situation; donotre ly on ActiveBr ak e
Assi stalone . #
Beprepa redto brak eor swerve ifneces-
sar y. Also
observe thesy stem limits ofActiveBr ak e
Assi st. 176176
Dr
iving andparking

The
indivi dualsub functi onsar The
indivi dualsub functi onsareav e
av ailabl ein v ailabl
ein var ar
i- i-
ous speed r ous
speed rang ang
es: es:
The distance warning function canissue awa rn-
ing inthefo llo wing situations:
R From appr oximat ely4 mp h(7 km /h),ifyo ur
ve hicle iscriticall yclose toave hicle, cyclis tor
pedes trian, youwill hear anintermitt entwarn-
ing tone and theL distance warning lamp
lights upintheinst rument cluster.
V V
ehicles wit ehicles
withPRE- S h
PRE- SAFE AFE
® ®
: :
dependi ngon the
count ry,an addit ionalhap ticwarning occur s
in thefo rm ofslight, repeat edtensio ning of
th eseat belt.
Br ak eimmediat elyor take evasiv eactio n,prov i-
ded itis saf eto do soand thetra1c situation
allo wsthis.
Dist Dist
ance w ance
war ar
ning function (v ning
function (vehicles wit ehicles
without Dr hout
Driv- iv
-
ing Assist ing
Assist anceP ance
Pac k ac
kag ag
e) e)
The distance warning function canaidyouin the
fo llo wing situations withan intermitt entwarning
to ne and awa rning lamp:
R atspeeds uptoappr oximat ely155 mph
(2 50 km/h) whenapproaching vehicles ahead R
atspeeds uptoappr oximat ely50 mph
(80 km/h )when approaching station aryve hi-
cles, movingpedes trians, andcyclis tsahead
R atspeeds uptoappr oximat ely37 mph
(60 km/h )when approachingcr ossin gcy clis ts
Dis t Dis
tance w ance
war ar
ning funct ion (v ni
ng funct ion (vehicl eswit ehicl
eswithDr h
Dr ivin g iv
in g
Assi st Assi
stance P ance
Pac k ac
kag ag
e) e)
The distance warning function canaidyouin the
fo llo wing situations withan intermitt entwarning
to ne and awa rning lamp:
R atspeeds uptoappr oximat ely155 mph
(2 50 km/h) whenapproaching vehicles ahead
R atspeeds uptoappr oximat ely62 mph
(100 km/h )when approaching station ary
ve hicles
R atspeeds uptoappr oximat ely50 mph
(8 0km/h) whenapproaching moving pedes-
tr ians andcyclists ahead
R atspeeds uptoappr oximat ely43 mph
(70 km/h )when approaching station ary
pedes trians, crossing vehicles andstation ary
and crossin gcy clis ts A A
ut ut
onom ousbr onom
ousbraking funct ion (v aking
funct ion (vehicle swit ehicle
swit hout hout
Dr Dr
iving Assis t ivi
ng Assis tance P ance
Pac k ac
kag ag
e) e)
If th eve hicle istrav eling atspeeds aboveappr ox-
imat ely4 mph (7km /h), theaut onomous braking
function mayint erve ne inthefo llo wing situations:
R atspeeds uptoappr oximat ely124 mph
(200 km/h )when approachingve hicles ahead
R atspeeds uptoappr oximat ely50 mph
(80 km/h )when approachingcy clis tsahead
R atspee dsup toappr oximat ely37 mph
(6 0km/h) whenapproaching moving pedes-
tr ians andcrossing cyclists
R atspeeds uptoappr oximat ely31 mph
(50 km/h )when approachingst ati ona ryvehi-
cles
A A
ut ut
onom ousbr onom
ousbraking funct ion (v aking
funct ion (vehicle swit ehicle
swit hDr h
Dr iv- iv
-
ing Assis t ing
Assis tance P ance
Pac k ac
kag ag
e) e)
If th eve hicle istrave ling atspeeds aboveappr ox-
imat ely4 mp h(7 km /h),th eaut onomous braking
function mayint erve ne inthefo llo wing situations:
R atspeeds uptoappr oximat ely155 mph
(250 km/h )when approaching vehicles ahead Dr
iving and parking
177 177

R
atspeeds uptoappr oximat ely62 mph
(100 km/h )when approachingst ati ona ry
ve hicles
R atspeeds uptoappr oximat ely50 mph
(80 km/h )when approaching cyclis tsahead
R atspeeds uptoappr oximat ely43 mph
(70 km/h )when approachingst ati ona ryand
mo vingpedes trians, crossin gve hicles andsta-
tion aryand crossin gcy clis ts
Si tuat ion-dep endent br Si
tuat ion-dep endent braking assist aking
assistance (v ance
(vehicle s ehicle
s
wit wit
hout Dr hout
Driving Assis t ivi
ng Assis tance P ance
Pac k ac
kag ag
e) e)
The situation -dependent braking assistance can
int erve ne from aspe edofapp roximat ely4 mp h
(7 km/h )in thefo llo wing situations:
R atspeeds uptoappr oximat ely155 mph
(250 km/h )when approachingve hicles ahead
R atspeeds uptoappr oximat ely50 mph
(80 km/h )when approachingst ati ona ryvehi-
cles andvehicles ahead
R atspeeds uptoappr oximat ely37 mph
(60 km/h )when approaching movingpedes-
tr ians andcrossing cyclis ts Si
tuat ion-dep ende ntbr Si
tuat ion-dep ende ntbraking assist aking
assistance (v ance
(vehicle s ehicle
s
wit wit
hDr h
Dr iving Assis t ivi
ng Assis tance P ance
Pac k ac
kag ag
e) e)
The situation -depende ntbraking assistance can
int erve ne from aspe edofapp roximat ely4 mp h
(7 km/h )in thefo llo wing situations:
R atspeeds uptoappr oximat ely155 mph
(250 km/h )when approachingve hicles ahead
R atspeeds uptoappr oximat ely62 mph
(100 km/h )when approachingst ati ona ry
ve hicles
R atspeeds uptoappr oximat ely50 mph
(80 km/h )when approachingcy clis tsahead
R atspee dsup toappr oximat ely37 mph
(60 km/h )when approaching station aryand
mo vingpedes trians, crossing vehicles, and
st ation aryand crossin gcy clis ts
Cance lingabr Cance
lingabr ak ak
eappli catio nof A e
appli catio nof Activ ctiv
eBr e
Br ak e ak
e
Assis t Assis
t
Yo ucan cancel abr ak eapplica tionofActive
Br ak eAssi stat anytime by:
R shar plydepr essin gth eacceler ator pedal or
wit hkic kdo wn
R releasing thebr ak epedal Ac
tiveBr ak eAssi stma ycanc elthebr ak eapplica-
tion when oneofthefo llo wing conditions isful/l-
led:
R Youmaneuv ertoavo idtheobst acle
R Ther eis no long erarisk ofcolli sion
R Anobs tacle isno long erdetected infront of
yo ur vehicle
Ev Ev
asiv asiv
eSt e
St eer eer
ing Assist (onl ing
Assist (onlyv y
vehicles wit ehicles
withDr h
Dr iving iving
Assist Assist
anceP ance
Pac k ac
kag ag
e) e)
Ev asiv eSt eer ing Assist hasthefo llo wing charac-
te risti cs:
R Theab ilit y to detect station aryor mo ving
pedes trians.
R Assis tance thro ugh powe r-assis tedsteer ing if
it de tects asw ervin gmaneu ver.
R Activation byan abr uptst eer ing movement
dur ing asw ervin gmaneuv er.
R Assis tance during swerving andstraigh tening
of theve hicle.
R Reactio nfrom aspeed ofappr oximat ely
12 mph(20 km/h) uptoaspeed ofappr ox-
imat ely43 mph (70km/h). 178178
Dr
iving andparking

Yo
ucan prev ent theassist anceatanytime by
activ elyst eer ing.
Cor Cor
ner ner
ing funct ion (onl ing
funct ion (onl yv y
vehicle swit ehicle
swit hDr h
Dr iving ivi
ng
Assis t Assis
tance P ance
Pac k ac
kag ag
e) e)
If th esy stem detects arisk ofacolli sion withan
oncom ingvehicle when turnin gacr oss anonco m-
ing lane ,aut onom ousbraking canbeinitiat edat
speeds below9mp h(1 5km /h)be fore youha ve
leT thelane inwhic hyo uar edr iving. &
W W
ARNIN G ARNIN
GRisk ofaccident despiteEv a-
siv eSt eer ing Assist
Ev asiv eSt eer ing Assist cannotalw aysre cog-
niz eobje ctsorcom plextra1c situat ions
clear ly.
Mor eover,th esteer ing suppor tpr ov ided by
Ev asiv eSt eer ing Assist isno tsu1cien tto
avo idacollision. #
Alwayspa ycar eful att ent ion tothetra1c
situation; donotre ly on Evasiv eSt eer ing
Assist alone. #
Beprepar edtobrak eor swerve ifneces-
sar y. #
End thesuppor tby activ elyst eer ing in
non -critical situ atio ns. #
Drive at an appr opriatespeed ifth er e
ar epedestr iansclose tothepat hof your
ve hicle. Sy
st Sy
stem limits em
limits
Fu llsy stem perform ance isno tye tav ailabl efo ra
few secon dsaTer switchingontheve hicle oraTer
dr ivi ng o..
If Ac tiveBr ak eAssi stisim pair edorinoper ative
due toamalf unct ion,th e00C7 warning lamp
appear sin theInstr ument Display.
The system maybe impai redor ma yno tfun ction,
par ticular lyin thefo llo wing situations:
R Insno w,rain, fog, hea vyspr ay,if th er eis glar e,
in dir ect sunlight oringreatl yva rying ambient
light.
R Ifth esensor sar edir ty,fo gg ed up, dam aged or
co vered.
R Ifth esensor sar eim pair eddue tointerfere nce
fr om other radar sour ces, e.g.strong radar
re 0ectio nsinapar kingga rage . R
Ifaloss oftirepr essur eor amalf unctionin g
tir ehas been detected and displa yed.
R Incom plextra1c situations whereobjects
canno talw aysbe clear lyident i/ed.
R Ifpedestr iansorvehicles movequickl yint o
th esensor detection rang e.
R Ifped estr ians arehid den byother objects.
R Ifth etypical outline ofapedestr iancanno tbe
distin guished from thebac kgroun d.
R Ifapedestr ianisno tde tected assuc h,e.g .
due tospecial clothing orother objects.
R Ifth edr iver's seat beltisno tfa stene d.
R Oncurves withatight radius.
% The ActiveBr ak eAssi stsens orsadjust auto-
mati callywhile acer tain dist ance isbeing
dr iven aTer theve hicle hasbeen delivered.
Ac tiveBr ak eAssi stisuna vailable oronl ypar -
tiall yav ailabl edur ing thete ac h-in process.
A A
ctiv ctiv
atin g/deact iv atin
g/deact ivatin gA atin
gActiv ctiv
eBr e
Br ak ak
eAssis t e
Assis t
R R
eq eq
uir uir
emen ts: emen
ts:
R The vehicle isswitc hedon. Dr
iving and parking
179 179

Multim
ediasystem:
4 © 5
Set tings 5
Ass istan ce
5 ActiveBrak eAss ist #
Selec tth edesir edsetting .
The setting isretained when thedr ive sy stem
is ne xt star ted.
Deactiv Deactiv
atingA ating
Activ ctiv
eBr e
Br ak ak
eAssist e
Assist
% Itis recommen dedthat youalw ayslea ve
Ac tiveBr ak eAssi stacti vated. #
Select Off.
The distance warning function, theaut ono-
mous braking function andEvasiv eSt eer ing
Assist aredeactiv ated.
When theve hicle isne xt star ted, themiddle
se tting isaut omaticall yselect ed.
% IfAc tiveBr ak eAssi stisdeac tivated, the00D4
symbol appearsin thestatus baroftheInstr u-
ment Displa y. TT
r r
a1c a1c
Sign Assis t Si
gn Assis t FF
unct ionof unct
ionofTr Tr
a1c a1c
Sign Assis t Si
gn Assis t
Tr a1c Sign Assis tde tects tra1c signswit hth e
multif unctioncamer a(/ page155) .It assists
yo uby displa yingdetected speed limitsand over-
ta king restr iction sin theInstr ument Display.
Obser vetheno teson drivi ng systems andyour
re sponsi bility;yo uma yot her wise failto recogn ize
dang ers(/ page155) .
Sin ceTra1c Sign Assis talso uses thedat astor ed
in thena vig ation system, itcan updat eth edispla y
in thefo llo wing situations without detectin gtra1c
sign s.
The camer aalso detects tra1c signswit ha
re str iction indicat ed byan addit ionalsign (e.g.
when wet).Thes ear eonl ydisp laye difare str ic-
ti on appliesor ifth esy stem canno tclear lyde ter-
mine whether there str iction applies.
W W
ar ar
nin gwh en t nin
gwh en the maximu mper he
maximu mpermi ssible spee dis mi
ssible spee dis
ex ex
ceeded ceeded
The system can warnyouifyo uunint entionall y
ex ceed themaximum permissible speed.Todo
th is, youcan specify inthemultimedia system by
ho wmuc hth emaximum permissible speedcan be
exceeded beforeawa rning isissued. Youcan
specify whether thewa rning isto be justa visual
wa rning oran acoustic oneaswell.
Displa Displa
yin t y
in the Ins he
Instr tr
ument Display ument
Display Instr
ument Displayin theWi descr eenCockpit
1 Maximum permissible speed
2 Maximum permissible speedwhenther eis a
re str iction
3 Additional signwithre str iction 18
0 18
0 Dr
iving andpa rking

%
V V
ehicles wit ehicles
withast h
ast andar andar
dIns d
Instr tr
ument Display ument
Display: :
A + +
symbol next to atra1c signintheInstr u-
ment Displa yindicat esthat addit ionaltra1c
sign sha ve been detected. These canalso be
displa yedin themedia displayand optionall y
in theHead-up Display.
If Tra1c Sign Assis tcann otdeterm ine themaxi-
mum permissible speed(e.g.duetomissing
signs), thefo llo wing displa yappear sin theInstr u-
ment Displa y: This
isdis pla yedcontinu ouslyif th eve hicle isin a
coun try wher eTra1c Sign Assis tis no tsuppor ted.
Tr a1c Sign Assis tis no tav ailabl ein all coun tries.
% Also obser vetheinf ormation ondispla ymes-
sag esinTra1c Sign Assis t(/ page337) . Sy
st Sy
stem limits em
limits
The system maybe impair edorma yno tfu nct ion
par ticu larlyin thefo llo wing situations:
R Ifth er eis poor visibility ,e.g. duetoinsu1c ient
illumination ofthero ad, highl yva riable shade
cond itions, rain, sno w,fogor hea vyspr ay.
R Ifth er eis glar e,e.g. from oncoming tra1c,
dir ect sunlight orre0ectio ns.
R Ifth ewindshield inthear ea ofthemultifun c-
tion camer ais dir ty,or ifth ecamer ais fogg ed
up, dam aged orcovered.
R Ifth etra1c signs arehar dto detect, e.g.due
to dir t,sno wor insu1cien tlightin g,or
because they areco vered.
R Ifth einf ormation inthena vig ation system's
digit almap isincor rect or out- of-dat e.
R Ifsign sar eambigu ous,e.g.ro ad sign sin road-
wo rksor inadjace ntlane s.
R Ifyo utur nshar plywhen passingtra1c signs
outside thecamer a's/eld ofvision. Se Se
tting tting
Tr Tr
a1c a1c
Sign Assis t Si
gn Assis t
R R
eq eq
uir uir
emen ts: emen
ts:
R Onl Onl
yv y
vehicle swit ehicle
swit hDr h
Dr iving Assis t ivi
ng Assis tance P ance
Pac k ac
kag ag
e: e:
Ac tiveDist ance AssistDIS TRONI Cand ECO
Assi stmust beacti vatedfo rth eaut omatic
adop tionofspeed limits.
Multimedia system:
4 © 5
Settings 5
Assistance
5 Traffic SignAssist
A A
ctiv ctiv
ating ordeactiv ating
ordeactiv atingaut ating
automatic adop omatic
adoptionof tion
of
speed limits(onl speed
limits(onlyv y
vehicles wit ehicles
withDr h
Dr iving Assist iving
Assist ance ance
P P
ac k ac
kag ag
e) e)
#
Select LimitAdoption. #
Switc hth efunction onoro..
The speed limitsdetected byTra1c Sign
Assis tar eaut omati callyadop tedby Active
Dist ance AssistDIS TRONI C.
% Ifone ofthefo llo wing systems isactiv ated,
th ede tected speed canbemanual lyadop ted
as thespeed limit:
R ActiveDist ance AssistDIS TRONI C
R Cruise control Dr
iving andparking
181 181

R
Variable limiter
Fu rther informatio nabout ActiveDist ance
Assi stDIS TRONI C:(/ page167).
Disp la Disp
laying det ying
detect ect
ed ed
tr tr
a1c a1c
signs int signs
inthe medi adis- he
medi adis-
pla y pla
y #
Select Display inCentr alDisplay . #
Switc hth efunction onoro..
Se Se
tting t tting
the type ofw he
type ofwar ar
ning ning
#
Select Visual& Audibl e, Visua lor Off.
Se Se
tting t tting
the w he
war ar
ning t ning
thr hr
eshold eshold
This value determ ines thespeed atwhic hawa rn-
ing isissued whenexceeded. #
Select Warning Threshold. #
Setth edesir edspeed. TT
r r
a1c a1c
Light Inf Light
Infor or
mation ser mation
service vice
&
W W
ARNIN G ARNIN
GRisk ofan accident orinjur y
due todist raction ,incor rect or missin g
dat a
The tra1c lightinformation displayis an aid
and canno tre place theobser vation ofthe
actual drivi ng situ atio n. #
Keep theactual tra1c situation con-
st antl yin vie wwhen approaching atraf-
fi c light andwhen chang inglane s. #
Avoid looking attheInstr ument Display
and Head-up Displayfo ra long time. The
Instr ument Displayand Head-up Display(if
av ailabl e)sho wthetra1c lighticonandremainin g
time 1unti lth ene xt green phase asacountdo wn. Ex
am ple repr esent ation intheInstr ument Display
The displa yis hidden about/veseconds before
th etra1c lights chang eto green.
% The displa yalso goes outinthefo llo wing
cases :
R When turning o.beforeth eint ersection
int oacr oss orside street
R When turning beforeth eint ersection
% The direction arro ws aredispl ayeddepending
on thefo llo wing functions:
R Atur nsignal isse t
R Alane isrecommen dedduring activ e
rou teguida nce 182182
Dr
iving andparking