2023 MERCEDES-BENZ A CLASS ECU

Obser
v Obser
ve when st e
when stopping orpar opping
orpar king king
&
W W
ARNIN G ARNIN
GRisk ofaccident andinjurydue
to childr enleT unatt ended intheve hicle
If ch ildr enareleT unsuper visedintheve hicle,
th ey could, inpar ticul ar:
R open doors,ther eb yendang ering other
per sons orroad user s.
R getout and bestruckby oncoming tra1c.
R oper ateve hicle equipme ntand become
tr apped, forex am ple.
In addit ion,th ech ildr encould alsosetth e
ve hicle inmo tion ,fo rex am ple by:
R releasing thepar king brak e.
R chang ingthetransmission position.
R star ting theve hicle. #
Neverlea vechildr enunatt ended inthe
ve hicle. #
When leavingth eve hicle, alwaysta ke the
Sma rtKe ywit hyo uand lockth eve hicle. #
Keep theve hicle SmartKey out ofreac h
of childr en. &
W W
ARNIN G ARNIN
GRisk offata linjur ydue toexpo-
sur eto extreme heator cold intheve hicle
If per sons, particu larlych ildr en, aresubject ed
to prolong edexposur eto intense heatorcold,
th er eis arisk ofsevere injur yor even deat h. #
Neverlea veper sons, particular lych il-
dr en, unatt ended intheve hicle. OvOv
er er
vie vie
wof suit w
of suit able seats int able
seats inthe v he
vehicle f ehicle
for ins t or
ins tal- al-
lin gac lin
gachild r hild
res es
tr tr
aint syst aint
system em
LeT/rLeT/r
ight ight
r r
ear seat ear
seat
Pr efer redsecur ingsystem:
® LATC H-ty pe(ISOFI X)child seat secur ing
sy stem
¯ Alsosecur eTo pTe ther ifpr esent
(/ page58).
Alt ernativ esecur ingsystem:
0076 Vehicle seatbelt F F
r r
ont passen g ont
passen ger seat er
seat
Se cur ing system:
0076 Vehicle seatbelt
Be sureto obser ve:
R Ifth efront passeng erseat isoccupied,
ensur e,bo th bef oreand during thejour ney,
th at thestatus ofthefront passeng erairbag is
cor rect forth ecur rent situ atio n(/ page47).
R Noteson automati cfront passen gerairbag
shut o.(/ page46).
Cent Cent
err er
rear seat ear
seat
Secur ingsystem:
0076 Vehicle seatbelt
¯ Alsosecur eTo pTe ther ifpr esent
(/ page58). Occupant
safety
55 55

AA
ctiv ctiv
atin gor deactiv atin
gor deactiv atingt atin
gthe special seatbelt he
special seatbelt
re re
tr tr
act act
oroft or
ofthe sea tbelt he
sea tbelt &
W W
ARNING ARNING
Riskofinjur yor deat hifasea t
belt isunf astened whiletheve hicle isin
mo tion
If th eseat beltisreleased whiletheve hicle is
in mo tion ,th especial seatbeltretract oris
deac tivated and thech ild restr aint system is
no long er correctl ysecur ed.The seat beltis
dr aw nin slightl yby theiner tiareel and canno t
be immediat elyclosed again. #
Stop theve hicle immed iatelyin accor d-
ance withth etra1c conditions. #
Activateth especial seatbeltretract or
ag ain and correctl ysecur eth ech ild
re str aint system . Wh
enena bled ,th especial seatbeltretract or
ensur esthat theseat belts ofthefront passeng er
seat andrear seats donotslac kenonce thech ild
re str aint system isse cu red. The
seat belts onthefo llo wing seats areeq uipped
wit haspecia lseat beltretract or:
R Front passeng erseat
R Rear seats
Ins t Ins
tallin gac allin
gachild r hild
res es
tr tr
aint syst aint
system em
#
When installing ach ild restr aint system ,
al wa ys obser vethemanuf acturer'sinstallation
and oper ating instruction sas wellas theinf or-
mation inthis Oper ator's Manual. #
Pull theseat beltsmoo thly from theseat belt
outle t. #
Eng ageth eseat belttongue intheseat belt
buc kle.
A A
ctiv ctiv
ating t ating
the special seatbeltre he
special seatbeltretr tr
act act
or or
#
Pull theseat beltoutfullyand letth einer tia
re el retract itag ain.
When thespecial seatbeltretract orisacti va-
te d, youwill hear ara tche ting sound . #
Push thech ild restr aint system down untilth e
seat beltsitstightl y. Deactiv Deactiv
atingt ating
the special seatbeltre he
special seatbeltretr tr
act act
or or
#
Press there lease buttonoftheseat belt
buc kle. #
Hold theseat belttongue andguide backto
th eseat beltoutle t. InstInst
alling aLA TC allin
gaLA TC H-ty pe(ISOFI X)c H-ty
pe(ISOFI X)chil dr hil
dres estr tr
ain t ain
t
sy st sy
stem ont em
onthe he
leT leT
and r and
righ tr igh
trea rse ats ea
rse ats InstInst
alling aLA TC allin
gaLA TC H-ty pe(ISOFI X)c H-ty
pe(ISOFI X)chil dr hil
dres estr tr
ain t ain
t
sy st sy
stem ont em
onthe he
leT leT
and r and
righ tr igh
trea rse ats ea
rse ats &
W W
ARNI NG ARNI
NGRisk ofaccid ent ifth ere ar
ben chseat, rear seat andseat backres t
ar eno teng aged
The rear ben chseat, rear seat andseat back-
re st ma yfo ld forw ards, even when youar e
dr iving.
R Asare sult ,th eve hicle occupan twill be
pushed intoth eseat beltwithincr eased
fo rc e. The seat beltwillnotbe able topro-
te ct as intende dand could cause addi-
tion alinj ury. 5656
Occupa
ntsaf ety

R
Objects orloads inthetrunk orcar go
com partment willnotbe restr ained bythe
seat backres t. #
Mak esur eth at there ar ben chseat, the
re ar seat andtheseat backrest are
eng aged bef oreev erytrip. If
th ere ar seat backres tis no teng aged and
loc kedin place, there dloc kve ri/catio nindic ator
wil lbe visib le. &
W W
AR NIN G AR
NIN GRisk ofinju ry or deat hifth e
per missible gross mass ofthech ild and
ch ild restr aint system toge ther isexcee-
ded.
To omuc hload maybe placed ontheLA TC H-
typ e(ISOFI X)child restr aint system andth e
ch ild ma yno tbe restr ained correctl yin the
eve ntofan accid ent, forex am ple. #
Ifth ech ild and thech ild restr aint system
to get her weigh mor eth an theper missi-
ble gross mass of73 lb(33 kg),onl yuse
a LA TC H-ty pe(ISOFI X)child restr aint sy
stem with whic hth ech ild issecur ed
wit hth eve hicle seatbelt. #
Also secur eth ech ild restr aint system
wi th theTo pTe ther belt, ifav ailabl e. Alw
ayscom plywit hth einf ormation aboutthe
mass ofthech ild restr aint system :
R Inthemanuf acturer'sinstallation andoper at-
ing inst ruction sfo rth ech ild restr aint system
us ed
R Onalabe lon thech ild restr aint system ,if
pr es ent
Re gula rly ch eckth at theper missible gross mass
of thech ild and child restr aint system issti llco m-
pl ied wi th.
When installing ach ild restr aint system ,ob serve
th efo llo wing:
0073 Alwaysobser vethecor rect use oftheseats
and consider their suit ability foratt aching a
ch ild restr aint system .
0073 Alwayscom plywit hth emanuf acturer's
inst allation andoper ating instruction sfo rth e
ch ild restr aint system used . 0073
Makesur eth at thech ild's feet do notto uc h
th efront seat. Ifnecessar y,mo vethefront
seat slightl yfo rw ards.
® When installing aLA TC H-ty pe(ISOFI X)child
re str aint system ,al so observeth efo llo wing:
0073 When usingabab When
usingabab ycar seat inw y
car seat inweight gr eight
group oup
0/0+ andar 0/0+
andarear w ear
war ar
d-f d-f
acing c acing
child r hild
res est
r tr
aint aint
sy st sy
stem inw em
inweight gr eight
group Ion ar oup
Ion arear seat ear
seat: :
adjus tth efront seat sothat theseat does
no tto uc hth ech ild restr aint system .
0073 Whenusing af Wh
enusing afor w or
war ar
d-f d-
fac ing c ac
ing chi ld r hi
ld res est
r tr
ai nt ai
nt
sy st sy
stem inw em
inwei gh tgr eight
group I: oup
I:re mo vethehead
re str aint from there specti veseat, ifpossibl e.
In addit ion,th ebac krest ofthech ild restr aint
sy stem mustlie as 0at asposs ibleag ain st
th ebac krest oftheve hicle seat.
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 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 group IIor III. Occupant
safety
57 57

#
Hook TopTe ther hook 5ofTopTe ther belt
4 intoTo pTe ther anc horage3 without
twistin g. #
Tensio nTo pTe ther belt 4.Indoing so,com-
pl ywit hth ech ild restr aint system manufac tur-
er's installation instruction s. #
Folddo wn cover2 ofTopTe ther anc horage
3.
V V
ehicles wit ehicles
withadjust h
adjust ablehead r able
head res estr tr
aints: aints:
#
Ifnecessar y,slide head restr aint 1 down -
wa rds(/ page94). Makesur eth at youdo
no tint erfere wit hth ecor rect routing ofTop
Te ther belt 4. SecurSecur
ingt ing
the c he
child r hild
res estr tr
aint syst aint
system wit em
witht h
the seat he
seat
belt belt
SecurSecur
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 r he
rear seat ear
seat &
W W
ARNIN G ARNIN
GRisk ofaccident ifth ere ar
ben chseat, rear seat andseat backres t
ar eno teng aged
The rear ben chseat, rear seat andseat back-
re st ma yfo ld forw ards, even when youar e
dr iving.
R Asare sult ,th eve hicle occupan twill be
pushed intoth eseat beltwithincr eased
fo rc e. The seat beltwillnotbe able topro-
te ct as intende dand could cause addi-
tion alinj ury.
R Objects orloads inthetrunk orcar go
com partment willnotbe restr ained bythe
seat backres t. #
Mak esur eth at there ar ben chseat, the
re ar seat andtheseat backrest are
eng aged bef oreev erytrip. If
th ere ar seat backres tis no teng aged and
loc kedin place, there dloc kve ri/catio nindic ator
wil lbe visib le.
Whe ninst Wh
eninst alling abe lt-s ec ur al
ling abe lt-s ec ured c ed
chi ld r hi
ld res est
r tr
ai nt sy ai
nt sys- s-
t t
em ,ob serv em,
obser ve t e
the f he
follo ollo
wing: wing:
0073 Alwayscom plywit hth emanuf acturer's
inst allation andoper ating instructions forth e
ch ild restr aint system used .
0073 Alsose cu re TopTe ther ifpr esent
(/ page58).
0073 When usingaw When
usingaweight cat eight
categor egor
y0/0+ bab y
0/0+ baby y
car seat andaw car
seat andaweight cat eight
categor egor
yIr y
Irear w ear
war ar
d- d-
f f
acing c acing
child r hild
res estr tr
aint syst aint
system onar em
onarear seat ear
seat : :
adjust thefront seat sothat theseat does
no tto uc hth ech ild restr aint system .
0073 Whenusing aw Wh
enusing awei gh tca t ei
gh tca teg or eg
oryIf y
Ifor w or
war ar
d- d-
f f
acin gc acin
gchild r hild
res es
tr tr
ain tsy st ai
nt system : em
:re mo vethe
head restr aint from there spect ive seat, if
possibl 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. 6060
Occupa
ntsaf ety

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