MERCEDES-BENZ A-CLASS HATCHBACK 2018 Workshop Manual

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Use Mercedes-Benz care products recom‐
mended byMercedes-Benz toclean child
re stra int sy stems. Further information can
be obtained at a qualified specialist work‐
shop.
The following no tes must be obser ved:
R When ins talling a child restra int sy stem on
th e front passenger seat, the information on
ins talling a child restra int sy stem on the front
passenger seat (→ page 52).
R Notes on attaching suitable child restra int
sy stems (→ page54)
R Notes on recommended child restra int sys‐
te ms (→ page 60).
R Instructions and saf ety no tes on the auto‐
matic front passenger front airbag shutoff
(→ page 40).
R Safety no tes on the seat belt (→ page 32).
R Information on the cor rect use of the seat
belt (→ page 35). ISOFIX and i-Size
child seat securing sy stems Note
s onthe ISOFIX and i-Size child seat
securing sy stems &
WARNING Risk of inju ryor death if the
permissible gross mass of thech ild and
ch ild restra int sy stem toget her is excee‐
ded
Fo r ISOFIX or i‑Size child restra int sy stems in
which thech ild is secured using the seat belt
integrated in thech ild restra int sy stem, the
permissible gross mass of thech ild and child
re stra int sy stem is 33 kg.
If th ech ild and thech ild restra int sy stem
to ge ther we igh more than 33 kg,th e ISOFIX
or i‑Size child restra int sy stem with integra‐
te d seat belt does not of fer suf ficient pr otec‐
tion. Too much load may be placed on the
ISOFIX or i‑Size child restra int sy stems and
th ech ild may not be restra ined cor rectly in
th eev ent of an accident, forex ample. #
Ifth ech ild and thech ild restra int sys‐
te m toget her weigh more than 33 kg,
only use an ISOFIX or i‑Size child re
stra int sy stem with which thech ild is
secured with theve hicle seat belt. #
Also secure thech ild restra int sy stem
with theTo pTe ther belt, if available. Alw
ays comply with the information about the
mass of thech ild restra int sy stem:
R inthe manufacturer's ins tallation and operat‐
ing instructions forth ech ild restra int sy stem
used
R on a label on thech ild restra int sy stem, if
present
Re gular lych eck that the permissible gross mass
of thech ild and child restra int sy stem is still
complied with.
When using a child restra int sy stem, be sure to
obser vethe manufacturer's ins tallation and
operating instructions as well as its cor rect use
and the suitability of the seats for attaching a
ch ild restra int sy stem.
ISOFIX and i-Size are standardised securing sys‐
te ms for special restra int sy stems. ISOFIX child
re stra int sy stems are appr oved in accordance 48
Occupant saf ety

with UN‑R44, i‑Size
child restra int sy stems are
appr oved in accordance with UN‑R129.
Only child restra int sy stems that ha vebeen
appr oved in accordance with UN‑R44 may be
attached toISOFIX mounting brac kets.
The following child restra int sy stems can be
attached toi-Size mounting brac kets:
R ISOFIX child restra int sy stems are appr oved
in accordance with UN‑R44
R i‑Size child restra int sy stems that are
appr oved in accordance with UN‑R129 1
Symbol forfitting an ISOFIX child restra int
sy stem
2 Symbol forfitting an i-Size child restra int
sy stem Fi
tting ISOFIX and i-Size child seat securing
sy stems &
WARNING Risk of inju ryifth ere ar
ben chseat/rear seat and seat backrest
are not engaged
If th ere ar ben chseat/rear seat and seat
backrest are not engaged they could fold for‐
wa rds, e.g. when braking suddenly or in the
ev ent of an accident.
R Ifth is is the case, theve hicle occupant
wo uld be forc ed into the seat belt bythe
re ar ben chseat/rear seat or bythe seat
backrest. The seat belt cann otprotect as
intended and could result in additional
injur y.
R Objects or loads in the boot/load com‐
partment cann otbe restra ined bythe
seat backrest. #
Make sure that the seat backrest and
th ere ar ben chseat/rear seat are
engaged before everytrip. Occupant sa
fety 49

If
th ere ar seat backrest is not engaged and
loc ked, there d lock verification indicator will be
visible. &
WARNING Risk of inju ryor death if the
permissible gross mass of thech ild and
ch ild restra int sy stem toget her is excee‐
ded
Fo r ISOFIX or i‑Size child restra int sy stems in
which thech ild is secured using the seat belt
integrated in thech ild restra int sy stem, the
permissible gross mass of thech ild and child
re stra int sy stem is 33 kg.
If th ech ild and thech ild restra int sy stem
to ge ther we igh more than 33 kg,th e ISOFIX
or i‑Size child restra int sy stem with integra‐
te d seat belt does not of fer suf ficient pr otec‐
tion. Too much load may be placed on the
ISOFIX or i‑Size child restra int sy stems and
th ech ild may not be restra ined cor rectly in
th eev ent of an accident, forex ample. #
Ifth ech ild and thech ild restra int sys‐
te m toget her weigh more than 33 kg,
only use an ISOFIX or i‑Size child re
stra int sy stem with which thech ild is
secured with theve hicle seat belt. #
Also secure thech ild restra int sy stem
with theTo pTe ther belt, if available. Alw
ays comply with the information about the
mass of thech ild restra int sy stem:
R inthe manufacturer's ins tallation and operat‐
ing instructions forth ech ild restra int sy stem
used
R on a label on thech ild restra int sy stem, if
present
Re gular lych eck that the permissible gross mass
of thech ild and child restra int sy stem is still
complied with.
When using a child restra int sy stem, be sure to
obser vethe manufacturer's ins tallation and
operating instructions as well as its cor rect use
and the suitability of the seats for attaching a
ch ild restra int sy stem. 1
ISOFIX mounting brac ket
2 i-Size mounting brac kets
Before every trip, make sure that the ISOFIX
ch ild restra int sy stem or the i-Size child restra int
sy stem is engaged cor rectly in bo thISOFIX or
i‑Size mounting brac kets. 50
Occupant sa fety

*
NO
TEBe careful not todamage the seat
belt forth e cent reseat when fitting the
ch ild restra int sy stem #
Make sure that the seat belt is not trap‐
ped. #
Attach the ISOFIX child restra int sy stem to
bo th ISOFIX mounting brac kets 1 or i‑Size
mounting brac kets 2.
or #
Attach the i‑Size child restra int sy stem to
bo th i‑Size mounting brac kets 2. Secu
ring TopTe ther &
WARNING Risk of inju ryor death if the
re ar seat backrests are not loc ked af ter
fi tting TopTe ther belts
If th ere ar seat backrests are not loc ked, they
could fold forw ards in theeve nt of an acci‐
dent, heavy braking or sudden changes of
direction. As a
result, child restra int sy stems cann ot
per form their intended pr otective function.
Re ar seat backrests that are not loc ked can
also cause additional injuries, e.g. in the
ev ent of an accident. #
Alw ays lock rear seat backrests af ter
fi tting TopTe ther belts. #
Obser vethe lock verification indicator. If
th ere ar seat backrest is not engaged and
loc ked, there d lock verification indicator will be
visible.
The risk of injury can be reduced byTopTe ther.
The TopTe ther belt facilitates an additional con‐
nection between thech ild restra int sy stem
attached with ISOFIX or i-Size and theve hicle.
The child restra int sy stem must be equipped
with a TopTe ther belt. Ve
hicles with adjustable head restra ints: #
If necessar y,mo vethe head restra int
upwards (→ page 93). Occupant saf
ety51

#
Guide TopTe ther belt 3under the head
re stra int between the two head restra int
bars.
Ve hicles without adjustable head restra ints: #
TopTe ther belt with a seat belt stra p: guide
To pTe ther belt 3overth e cent reofthe
head restra int.
or #
TopTe ther belt with two seat belt stra ps:
guide each TopTe ther belt 3totheright
and left side of the head restra int.
All vehicles: #
Fitthe ISOFIX or i-Size child restra int sy stem
with TopTe ther. Alw ays comply with thech ild
re stra int sy stem manufacturer's ins tallation
instructions when doing so. #
Hook TopTe ther hook 2without twisting
into TopTe ther anchorage 1.#
Tension TopTe ther belt 3. Alw ays comply
with thech ild restra int sy stem manufactur‐
er's ins tallation instructions when doing so.
Ve hicles with adjustable head restra ints: #
If necessar y,slide the head restra int down‐
wa rds (→ page 93). Make sure that you do
not inter fere with the cor rect routing of To p
Te ther belt 3. Child
restra int sy stems on the front
passenger seat Note
s onchild restra int sy stems on the front
passenger seat
Ac cident statistics show that children secured in
th ere ar seats are generally sa ferth an children
secured in the front seats. Forth is reason,
Mercedes-Benz strongly advises that you ins tall
a ch ild restra int sy stem on a rear seat.
If it is absolutely necessary toins tall a child
re stra int sy stem on the front passenger seat,
alw ays obser vethe information on the automatic
front passenger front airbag shutoff
(→ page 40).
By doing this, you can avoidrisks caused by:
R ach ild restra int sy stem that is not de tected
by the automatic front passenger front airbag
shutoff R
unintentional disabling of the front passenger
front airbag
R incor rect positioning of thech ild restra int
sy stem Wa
rning notice on the front passenger sun
visor &
WARNING Risk of inju ryor death from
using a rear wa rd-facing child restra int
sy stem when the front passenger front
airbag is enabled
If yo u secure a child in a rear wa rd-facing
ch ild restra int sy stem on the front passenger 52
Occupant saf ety

seat and
thePA SSENGER AIR BAG OFF indi‐
cator lamp is off, the front passenger airbag
can deploy in theev ent of an accident.
The child could be stru ck bythe airbag.
Alw ays ensure that the front passenger air‐
bag is disabled. The PASSENGER AIR BAG
OFF indicator lamp must be lit.
NEVER use a rear wa rd-facing child restra int
sy stem on a seat pr otected byan ENABLED
FRONT AIRB AGin front of it, DE ATH or SERI‐
OUS INJU RYtotheCH ILD can occur. If
th ePA SSENGER AIR BAG OFF indicator lamp is
out, the front passenger front airbag is enabled.
Be sure toobser vethe no tes on the safe trans‐
por tation of children (→ page 46).
Note s onvehicles without automatic front
passen ger front airbag shu toff
Ve hicles without automatic front passenger front
airbag shutoff ha vea special sticke r af fixe dto
th e side of the cockpit on the front passenger
side. Ne
ver ins tall a rear wa rd-facing child restra int
sy stem on the front passenger seat.
Make sure you obse rveth efo llowing informa‐
tion:
R Onforw ard-facing and rear wa rd-facing child
re stra int sy stems on the front passenger seat
(→ page 53).
R On attaching suitable child restra int sy stems
(→ page 54). Note
s onforw ard-facing and rear wa rd-facing
ch ild restra int sy stems on the front
passenger seat
When using a rear wa rd-facing child restra int sys‐
te m on the front passenger seat, the front
passenger front airbag must alw ays be disabled.
This is only the case if thePA SSENGER AIR BAG
OFF indicator lamp is lit continuously
(→ page 41).
When using thech ild restra int sy stem on the
front passenger seat, it is essential toobser ve
th efo llowing:
R Movethe front-passen ger seat as far back as
possible and also into the highest position.
R Set the seat backrest toan almost vertical
position.
R Retract the seat cushion length as far as pos‐
sible.
R The entire base of thech ild restra int sy stem
must alw aysre st on the sitting sur face of the
front passenger seat.
R The backrest of thefo rw ard-facing child
re stra int sy stem must, as far as possible, be
re sting on the seat backrest of the front Occupant saf
ety53

passenger seat. The
child restra int sy stem
must not touch thero of or be put under
st ra in by the head restra ints.
R If necessar y,adjust the angle of the seat
backrest and the head restra int position
accordingly.
R Adjust the seat cushion inclination so that
th e front edge of the seat cushion is in the
highest position and there ar edge of the
seat cushion is in the lo west position.
R Alw ays make sure that the shoulder belt
st ra p is cor rectly routed from the seat belt
outlet of theve hicle tothe shoulder belt
guide on thech ild restra int sy stem. The
shoulder belt stra p must be routed forw ards
and down wards from the seat belt outlet.
R If necessar y,adjust the seat belt outlet and
th e front passenger seat according ly.
R Never place objects under or behind the
ch ild restra int sy stem, e.g. cushions.
Alw ays comply with the manufacturer's ins talla‐
tion and operating instructions forth ech ild
re stra int sy stem used, and the no tes on attach‐ ing suitable
child restra int sy stems
(→ page 54). Suitability of
the seats forch ild restra int sys‐
te ms Note
s on attaching suitable child restra int
sy stems
Only child restra int sy stems that meet thefo l‐
lowing UNECE standards are permit tedfo r use in
th eve hicle:
R UN‑R44
R UN‑R129 (i‑Size child restra int sy stems)
Examples of appr oval labels on child restra int
sy stems: Label
forch ild restra int sy stems in accord‐
ance with UN‑R44 54
Occupant saf ety

Label
forch ild restra int sy stems in accord‐
ance with UN‑R129
ISOFIX or i-Size child restra int sy stems of thefo l‐
lowing "Universal" category can be used in
accordance with theta bles on suitability of seats
fo rth e atta chment of child restra int sy stems on
seats labelled U,UF, IUF or i-U. Semi-universal
child restra int sy stems are indi‐
cated bythete xt "semi-uni versal" on the
appr oval label. They can on ly beused if theve hi‐
cle and the seat are lis ted in thech ild restra int
sy stem manufacturer's vehicle model list.
Note s onthe suitability of seats for attach‐
ing belt-secured child restra int sy stems
Obser vethefo llowing information:
R When using a baby car seat of the cate‐
gory 0/0+ and a rear wa rd-facing child
re stra int sy stem on a rear seat: adjustthe
driver's and front passenger seat such that
th e seat does not touch thech ild restra int
sy stem.
R When using a forw ard-facing child
re stra int sy stem of category I: remo vethe
head restra int from there spective seat, if
possible (→ page 93). In addition, the seat
backrest of thech ild restra int sy stem must,
as far as possible, lie flat against the back‐
re st of theve hicle seat.
R When youre mo vethech ild restra int sy stem,
fi t th e head restra int immediately (→
page 93) and adjust all the head
re stra ints again cor rectly.
R For cer tain child restra int sy stems in weight
group II or III, there may be restrictions in the
maximum size setting, e.g. due topossible
con tact wi th thero of.
R Make sure that thech ild's feet do not touch
th e front seat. If necessar y,mo vethe front
seat forw ard slightl y.
R The child restra int sy stem must not touch the
ro of or be put under stra in by the head
re stra ints. Adjust the head restra ints accord‐
ingly.
R Obser vethe manufacturer's ins tallation
instructions forth ech ild restra int sy stem.
Legend forth eta ble:
XN otsuitable forch ildren in this we ight cate‐
gor y.
US uitable forch ild restra int sy stems of the
"Universal" category in this we ight categor y.
UF Suitable forfo rw ard-facing child restra int
sy stems of the "Universal" category in this
we ight categor y. Occupant saf
ety55

LS
uitable for semi-universal child restra int
sy stems according totheta ble in "Recom‐ mended
child restra int sy stems", or if the
ve hicle and the seat are lis ted in thech ild re
stra int sy stem manufacturer's vehicle
model list.
Fr ont passenger seat: We
ight categories Front passenger front airbag
enabled Fr
ont passenger front airbag disa‐
bled 1
Category 0: upto10 kg XU, L
Category 0+: upto13 kg XU, L
Category I: 9to 18 kg UF,LU , L
Category II: 15to25 kg UF,LU , L
Category III: 22to36 kg UF,LU , L
1 The vehicle is equipped with automatic front passenger front airbag shutoff. The PASSENGER AIR BAG OFF indicator lamp must be lit. 56
Occupant saf ety

Re
ar seats: We
ight categories Left,right
Centre1
Category 0: upto10 kg U,LU , L
Category 0+: upto13 kg U,LU , L
Category I: 9to 18 kg U,LU , L
Category II: 15to25 kg U,LU , L
Category III: 22to36 kg U,LU , L
1 Child restra int sy stems with a supporting brac ket are not suitable forth is seat. Note
s onthe suitability of seats for attach‐
ing ISOFIX child restra int sy stems
Obser vethefo llowing information:
R When using a baby car seat of cate‐
gory 0/0+ and a rear wa rd-facing child
re stra int sy stem of category I on a rear
seat: adjustthe driver's and front passenger
seat such that the seat does not touch the
ch ild restra int sy stem. R
When using a forw ard-facing child
re stra int sy stem of category I: remo vethe
head restra int from there spective seat, if
possible (→ page 93). In addition, the seat
backrest of thech ild restra int sy stem must,
as far as possible, lie flat against the back‐
re st of theve hicle seat.
R When youre mo vethech ild restra int sy stem,
fi t th e head restra int immediately (→
page 93) and adjust all the head
re stra ints again cor rectl y.
R For cer tain child restra int sy stems in weight
categories II or III, there may be cer tain
re strictions in the maximum size setting, e.g.
due topossible con tact wi th thero of.
R Make sure that thech ild's feet do not touch
th e front seat. If necessar y,mo vethe front
seat forw ard slightl y. Occupant saf
ety57