ECU MERCEDES-BENZ A CLASS 2023 Owner's Manual

0073
Thebackrest ofthefo rw ard-f acing child
re str aint system must,asfaras possible, be
re sti ng on theseat backrest ofthere ar seat.
0073 Ifth ehead restr aint ofthech ild seat canno t
be fullyex tended when itis inst alled inthe
ve hicle, this will result inrestr iction son the
maximum sizesettin gfo rch ild restr aint sys-
te ms inwe ight categor yII or III.
Cont actwithth ero of when thehead
re str aint isful lyex tended andlockedin place
will notre sult inanyre str iction son use.
0073 Thech ild restr aint system mustnotbe put
und erstr ain be twee nth ero of and theseat
cushion and/orbeinst alled facing thewr ong
dir ection. Wherepossible, adjusttheseat
cushion inclination accordingly.
0073 Thechild restr aint system mustno tbe put
und erstr ain by thehead restr aint. Adjust the
head restr aints asappropr iate .
0073 Makesur eth at thech ild's feet do notto uc h
th efront seat. Ifnecessar y,mo vethefront
seat slightl yfo rw ards. The
seat beltson thefo llo wing seats areeq uipped
wit haspecia lseatbelt retract or:
R Front passeng erseat
R Rear seats
When enabled,thespecial seatbelt retract or
ensur esthat theseat belts ofthefront passeng er
seat andrear seats donotslac kenonce thech ild
re str aint system isse cu red(/ page56). #
Inst allthech ild restr aint system .
Th eent ire ba se ofthech ild restr aint system
mu stalwa ys rest on theseat surface ofthe
re ar seat. #
Alwaysmak esur eth at theshoulder beltstrap
is cor rectl yro uted from theseat beltoutle tof
th eve hicle totheshoulder beltguide onthe
ch ild restr aint system .
Th esh ou lder beltstr ap mu stbe routed
fo rw ardfrom theseat beltoutle t. N No o
t t
es on r es
on rear w ear
war ar
d-f d-f
acing andf acing
andfor w or
war ar
d-f d-f
acing c acing
child hild
r r
es estr tr
aint syst aint
systems ont ems
onthe fr he
front passeng ont
passeng erseat er
seat &
W W
ARNIN G ARNIN
GRisk ofinjur yor fata linjur y
when usingare ar wa rd-faci ng child
re str aint system while th eco-dr iver airbag
is enabled
If yo usecur each ild inare ar wa rd-faci ng child
re str aint system ontheco-dr iver seat andthe
PA SSENGE RAIR BA GOF Find icat or lamp is
o., theco-dr iver airbag candeplo yin the
eve ntofan accid ent.
The child could bestruckby theairbag. #
Alwaysensu rethat theco-dr iver airbag is
disabled. ThePASSENGE RAIR BA GOF F
ind icat or lamp must belit. #
NEVER useare ar wa rd-faci ng child
re str aint system onase at with an ENA -
BL ED FRONT AIRBAG; DEA THorSER I-
OUS INJUR Yto theCHILD canoccur . Obser
vethespeci/c instruction sfo rth ere ar-
wa rd-faci ng and forw ard-f acing child restr aint sys-
te ms (/ page62) . Occupant
safety
61 61

Alw
aysobser vethestatus ofthefront passeng er
airbag onthePA SSENGE RAIR BA GOF Find icat or
la mp :
R When usingare ar wa rd-faci ng child restr aint
sy stem onthefront passeng erseat, thefront
passeng erairbag mustalwaysbe disable d.
This isonl yth ecase ifth ePA SSENGE RAIR
BA GOF Find icat or lamp islit continuousl y
(/ page47).
R Ifth ePA SSENGE RAIR BA GOF Find icat or
la mp iso., thefront passeng erairbag isena-
bled. Thefront passeng erairbag maydeplo y
dur ing anaccident.
Secur Secur
ingt ing
the c he
child r hild
res estr tr
aint syst aint
system wit em
witht h
the seat he
seat
belt ont belt
onthe fr he
front passeng ont
passeng erseat er
seat
When installing abelt-secur edchild restr aint sys-
te m on thefront passeng erseat, alwaysobser ve
th efo llo wing:
0073 Obser vetheno teson rear wa rd-faci ng and
fo rw ard-f acing child restr aint system son the
front passeng erseat (/ page 61).
0073 Obser vethech ild restr aint system manufac -
tu re r's inst allation andoper ating instruction s. 0073
When usingafo rw ard-f acing child restr aint
sy stem inwe ight categor yI: re mo vethehead
re str aint from there specti veseat, ifpossibl e.
ATer thech ild restr aint system hasbe en
re mo ved, replace thehead restr aint imme di-
at elyand adjustall head restr aints correctl y.
0073 Thebackrest ofthefo rw ard-f acing child
re str aint system must,asfaras possible, be
re sti ng on theseat backrest ofthefront
passeng erseat.
0073 Ifth ehead restr aint ofthech ild seat canno t
be fullyex tended when itis inst alled inthe
ve hicle, this will result inrestr iction son the
maximum sizesettin gfo rch ild restr aint sys-
te ms inwe ight categor yII or III.
Cont actwithth ero of when thehead
re str aint isful lyex tended andlockedin place
will notre sult inanyre str iction son use.
0073 Thech ild restr aint system mustno tbe put
und erstra in be tween thero of and theseat
cushion and/orbeinst alled facing thewr ong
dir ection. 0073
Thechild restr aint system mustno tbe put
und erstra in by thehead restr aint. Adjust the
head restr aints asappropr iate .
0073 Neverplace objects (e.g.cushions) underor
behind thech ild restr aint system .
Th ese at belton thefront passeng erside iseq uip-
ped withaspecial seatbelt retract or.
When enabled,thespecial seatbelt retract or
ensures that theseat beltdoes notslac kenonce
th ech ild seat issecur ed(/ page56). &
W W
ARNIN G ARNIN
GRisk ofinjur yor deat hdue to
objects between theseat surface and the
ch ild restr aint system
Ob jec tsbetwee nth eseat surface and the
ch ild restr aint system could a. ectth efunction
of theaut omatic front passeng erairbag shut-
o.. #
Donotplace anyobjects between the
seat surface and thech ild restr aint sys-
te m. #
Alwaysmak esur eth at thech ild restr aint
sy stem isco rrectl yinst alled. 6262
Occupant
safety

#
Alwaysactiv ateth einst alled child safety
loc ksifch ildr enaretrav eling intheve hi-
cle. #
Neverlea vechildr enunatt ended inthe
ve hicle. #
When leavingth eve hicle, alwaysta ke the
Sma rtKe ywit hyo uand lockth eve hicle. Ther
ear ech ild safetyloc ksforth ere ar door sand
th ere ar side windows.
The child safetyloc kon there ar door ssecur es
eac hdoor separ ately. The doorscan nolong erbe
open edfrom theinside. #
Press theleve rin dir ection 1(activ ate) or 2
(deactiv ate). #
Mak esur eth at thech ild safetyloc ksarewo rk-
ing proper ly. A A
ctiv ctiv
atin gand deactiv atin
gand deactiv atingt atin
gthe c he
child safe hild
safety loc k ty
loc k
f f
or t or
the r he
rear side windo ws ear
side windo ws #
T T
o activ o
activ at at
e/deactiv e/deactiv
at at
e: e:
press button2.
The rear side windowcan beopen edorclosed
in thefo llo wing cases :
R indicat orlam p1 islit: via theswitc hon
th edr iver's door 6464
Occupant
safety

R
indicat orlam p1 iso.: viatheswitc hon
th ecor respond ingrear door ordriver's
door NNo o
t t
es on pe es
on pets int ts
inthe v he
vehicle ehicle
&
W W
AR NIN G AR
NIN GRisk ofacciden tand injurydue
to anim alsleT unse curedorunat tended in
th eve hicle
If yo ulea veanim alsintheve hicle unattended
or unse cured, they could possibl ypr ess but-
to ns orswitches .
An anim alma y:
R Activateve hicle equipme ntand become
tr apped, forex am ple
R Switchsy stems onoro. and endanger
ot her roadus ers
Uns ecured animalsmaybe thro wn aroun din
th eve hicle intheev ent ofan accident orsud-
den steer ing and braking maneuv ersand
injur eve hicle occupan tsinthepr ocess. #
Neverlea veanim alsintheve hicle unat-
te nded . #
Alwayscor rectl ysecur eanimals while
dr ivi ng ,e.g .using asuit able animal car-
ri er . Occupant
safety
65 65

RR
emo emo
ving/ inser ving/
insertingt ting
the emer g he
emer gency key ency
key RR
emo emo
ving t ving
the emer g he
emer gency key ency
key #
Press release button1.
Emer gency key2 ispushe dout slightly. #
Pull outeme rgency key2 untiliten gage sin
th eint ermediat eposition.
% Depending ontheve hicle' seq uipme nt,th e
int ermediat eposition isno tav ailabl e. #
Press release button1 again and fully
re mo veemer gency key2. Inse
r Inse
rtin gt tin
gthe emer g he
emer gen cy key ency
key #
Press release button1. #
Inser temer gency key2 totheint ermediat e
position orfull yuntil iteng ages.
% Youcan usetheint ermediat eposition of
emer gency key2 toatt achth eSmar tKey to
a ke yring. RR
epla cing t epla
cing the Smar he
Smar tKe tK
ey bat t y
bat ter y er
y &
D D
AN AN
GER GER
Riskoffata linjur iesdue tosw al-
lo wing batteries
Bat teries cont aintoxicand corrosiv esubs tan-
ces .Sw allow ing batt eries maycause severe
int ernal burnstooccur within twohour s.
Ther eis arisk offata linjur y. #
Keep batt eries out ofthere ac hof chil-
dr en. #
Ifth ecap and/or thebatt erycom part-
ment doesnotclose securely, do notuse
th eSmar tKey anylon gerand keep out of
th ere ac hof childr en. #
Ifbatt eries aresw allo wed,seek medical
att ention immediat ely. +
ENVIR ENVIR
ONMENT ONMENT
ALNO AL
NOTE TE
Environmen tal
damag edue toimproper disposa lof bat-
te ries Batt
eries cont ainpollut ants. Itis
illeg alto dispose ofthem withth ehousehold
ru bbish. #
Dispose
ofbatt eries inan
en vironment allyre sponsi blemann er.
Ta ke disc hargedbatt eries toaqu ali/ed
special istwo rkshop ortoacolle ction
poin tfo rused batteries. RR
eq eq
uir uir
ements: ements:
R Youre qu ire aCR 2032 3V cell battery. 6868
Opening
andclosing

Closing
t Closing
the tr he
trunk lid unk
lid &
W W
ARNIN G ARNIN
GRisk ofinjur yfrom unsecur ed
it ems intheve hicle
If obj ects, luggage orloads areno tsecur edor
no tsecur edsu1cient ly,th ey could slip,tip
ov er or be thro wn aroun dand ther eb yhit vehi-
cle occupan ts.
Ther eis arisk ofinjury, par ticular lyin the
eve ntofsud den brak ing orasud den chang e
in dir ecti on. #
Alwaysst ow objects insuc hawa yth at
th ey canno tbe thro wn aroun d. #
Beforeth ejour ney,secur eobj ects, lug-
ga ge orloads agains tslipping ortipping
ove r. Obser
vetheno teson loadin gth eve hicle.
N No o
t t
es on closin gt es
on closin gthe tr he
trunk lid: unk
lid:your vehicle is
eq uipp edwithaut omati cSmar tKey recogn ition.If
a Smar tKey belongin gto theve hicle isde tected in
th eve hicle, thetrunk lidwill notbe lockedand will
pop open again. No
tethat thetrunk lidwill notbe lockedifth efo l-
lo wing situation occurs:
R Youha ve loc kedth eve hicle andclose the
tr unk lidwhi leaSmar tKey belongin gto the
ve hicle isinsi detheve hicle.
and
R Asecon dSmar tKey belongin gto theve hicle is
no tde tected outsi detheve hicle.
Au tomatic SmartKey recogn itionis onl yan aid
and isno ta subs titutefo ryo ur att entiv eness. #
Beforeloc king, ensur eth at atleas tone
Smar tKey belongin gto theve hicle isoutsi de
th eve hicle. #
T T
o close t o
close the tr he
trunk lid: unk
lid:pull thetrunk liddown-
wa rdsusin gth ehandle recess andpush it
closed. HA
NDS- FREE A HA
NDS- FREE ACCES Sfun ction CCES
Sfun ction Wi
th HAND S-FREE ACCESS youcan open the
tr unk lidbyper form ing akic king movement under
th ebum per.
Obser vetheno teswhen openingthetrunk lid
(/ page74). Opening
andclosing
75 75

&
W W
ARNI NG ARNI
NGRisk ofbur nscause dby aho t
ex haus tsy stem
The vehicle exhaus tsy stem can become very
ho t.Ifyo uuse HANDS-FR EEACCESS, you
could burnyo urself bytouc hing theex haus t
sy stem. #
Alwaysensu rethat youonl ymak eakic k-
ing movement within thede tection rang e
of thesensor s. *
N NO O
TE TE
Damag eto theve hicle caused by
unint entionall yopening thetrunk lid R
When usinganaut omatic carwash
R When usingahigh pressur eclean er #
Deact ivat eth efunction oftheSmar tKey
in these situations.
or #
Mak esur eth at theSmar tKey isat amin-
imum distance of10 T(3 m) away from
th eve hicle. When
makingth ekic king movement, makesur e
th at youar estanding /rml yon thegr ound. You
could other wise loseyour balance, e.g.onice.
Obser vethefo llo wing notes:
R The Smar tKey isbehind theve hicle.
R Stand atleas t12 in(30 cm) awayfrom the
ve hicle while perform ing thekic king move-
ment.
R Donotcome intocont actwithth ebum per
while making thekic king movement.
R Donotcar ryout thekic king movement too
slo wly .
R The kicking movement mustbetowa rdsth e
ve hicle andbackag ain. 1
Detection rang eof thesensor s
If se veralconsecutiv ekic king movements areno t
successful, waitte nsec onds .
Sy st Sy
stem limits em
limits
The system maybe impai redor ma yno tfun ction
in thefo llo wing cases :
R The sensor sar edir ty,e.g. duetoroad salt or
sno w.
R The kicking movement ismade usingapr os-
th etic leg. 7676
Opening
andclosing

The
trunk lidcou ldbe ope ned unint entio nally,in
th efo llo wing situations:
R Aper son's arms orlegs aremo ving inthesen-
sor detection rang e, e.g. when polishing the
ve hicle orpic king upobj ects.
R Objects aremo vedor placed behind theve hi-
cle, e.g.th efuel pum phose, chargin gcable or
lug gage .
R Clam pingstraps, tarp sor other coverings are
pull edove rth ebum per.
R Apr otectiv emat withalengt hre ac hing over
th etrunk silldown intoth ede tection rang eof
th esensor sis used.
R The protectiv emat isno tsecur edcor rectl y.
Deactiv ateth efunction oftheSmar tKey
( / pag e67) ordo notcar rytheSmar tKey about
yo ur per son insuc hsituations. UUnloc nloc
king andopening t king
andopening the tr he
trunk fr unk
from inside with om
inside with
t t
he emer g he
emer gency r ency
release elease
RR
eq eq
uir uir
ements: ements:
R The 12Vve hicle batteryis conn ectedand
ch arge d. #
Press theemer gency release button1
br ie0y . Side
windo ws Sid
ewi ndo ws Openin
gand closing t Openin
gand closing the side windo ws he
side windows &
W W
ARNI NG ARNI
NGRisk ofentr apm entwhen ope n-
ing asid ewind ow
When opening aside windo w,par tsof the
body could bedraw nin or bec ome trapp ed
be tween theside windo wand windo wframe. #
When opening, makesur eth at nob ody is
to uc hing theside windo w. #
Ifsomeo neistrapped ,re lease thebut-
to nimm ediately or pull itin order to
close theside windo wag ain. &
W W
ARNIN G ARNIN
GRisk ofbecoming trapped when
closing aside windo w
When closing aside windo w,body partscould
be trapped intheclosing area inthepr ocess. #
When closing, makesur eth at no body
par tsarein theclosing area. Opening
andclosing
77 77

Indi
catorlam p1 0ashes whentheATA system is
ar med.
The ATA system isdeacti vatedaut omaticall yin the
fo llo wing situations:
R ATer unlockingtheve hicle withth eSmar tKey
R ATe run lock ing theve hicle usingKEY LESS-GO
R ATer pressin gth estar t/s topbutt onwithth e
Sma rtKe yin themar kedspace (/page129) %
When theMer cedes‑Benz emergency callsy s-
te m isactiv eand thealar mstay son formor e
th an 30 secon ds,amessag eis aut omati cally
sent totheCust omer Assist anceCenter
(/ page247).
% Inthecase ofsevere batt erydisc harging ,th e
anti-theT alarmsystem isaut omati callydeac-
tiv ated tofacilit ateth ene xt engine star t.
Deactiv Deactiv
atingt ating
the ATA he
ATA #
Press theÜ, ßor008B buttononthe
Sma rtKe y.
or #
Press thestar t/s topbutt onwithth eSmar tKey
in thestow agecom partmen t(/ page129)
Deact iv Deact
ivatin gt atin
gthe alar he
alar musin gKEY LESS-GO m
usin gKEY LESS-GO #
Grasp theoutside doorhandle withth eSmar t-
Ke yout side theve hicle. FF
unct ionoft unct
ionofthe tow he
tow-a wa -a
wa yalar m y
alar m %
Thisfu nct ion mayno tbe availabl ein all coun -
tr ies. An
audib leand visualalar mistrigg ered ifan alter-
atio nto your vehicle' sang leof incl inat ionis
de tected while theto w- awa yalar misarmed.
The tow- awa yalar misaut omat icallyarmed aTer
appr oximat ely60 seconds:
R ATer locking theve hicle withth eSmar tKey
R ATe rlo ck ing theve hicle usingKEY LESS-GO
The tow- awa yalar misonl yar med when thefo l-
lo wing components areclosed:
R Door s
R Trunk lid
The tow- aw ay alar misaut omati callydeact ivat ed:
R ATer pressin gth eÜ or008B buttononthe
Sma rtKe y
R ATe rpr ess ing th estar t/s topbutt onwithth e
Sma rtKe yin themar kedspace (/page129)
R ATer unlockingtheve hicle usingKEY LESS-GO
R When usingHA NDS- FREE ACCESS
Inf ormation oncollision detection onapar ked
ve hicle (/page153) . Open
ingand closin g
85 85

#
Neverlea vechildr enunatt ended inthe
ve hicle. #
When leavingth eve hicle, alwaysta ke the
Sma rtKe ywit hyo uand lockth eve hicle. Yo
ucan usethememor yfunction whentheigni-
tion isswitc hedo..
Seat adjustmen tsforup tothre epeople canbe
st or ed and called upusing thememor yfunction .
Yo ucan save setting sfo rth efo llo wing systems:
R Seat
R Seat contour
R Outside mirrors
R Hea d-up Display Ope
r Ope
rati ng t ati
ng the mem or he
mem oryfunct ion y
funct ion SS
t t
or or
ing ing
#
Setth edesir edposition forall systems. #
Brie0y press memor ybutt onV andthen
pr ess prese tposition 0037,TorU
wit hin thre eseconds. #
T T
o call up: o
call up:press and brie0y hold oneofprese t
position buttons 0037, TorU.
ATer releasing thebutt on,allsystems are
mo vedint oth estor ed position. SS
t t
o o
w w
ag ag
ear e
ar eas eas
NNo o
t t
es on loading t es
on loading the v he
vehicle ehicle
&
D D
AN AN
GER GER
Riskofexhaus tga spoison ing
Combu stion enginesemit poison ousexhaus t
ga ses suchas carbon monoxide.Exhaus t
ga ses can entertheve hicle interior ifth etrunk
lid isopen when theve hicle isrunning, espe-
cia lly if th eve hicle isin mo tion . #
Alwaysswitc ho. theve hicle before
open ingthetrunk lid. #
Neverdr ive wit hth etrunk lidopen. &
W W
ARNIN G ARNIN
GRisk ofinjur yfrom unsecur ed
it ems intheve hicle
If obj ects, luggage orloads areno tsecur edor
no tsecur edsu1cient ly,th ey could slip,tip 100100
Seat
sand stow ing