2021 MERCEDES-BENZ A-CLASS HATCHBACK airbag off

not high. Con
versely, an airbag may be depl oyed
ev en though theve hicle su.ers only minor defor-
mation. If very rigid vehicle parts such as longitu-
dinal membe rsare hit, this may result in su1-
ciently high le vels of vehicle deceleration.
Depending on the de tected deployment situation,
th e components of there straint system can be
acti vated or deplo yed independently of each
ot her:
R Seat belt tensioner: frontal impact, rear
impact, side impact, rollo ver 1
R Driver's airbag, front passenger airbag: frontal
impact
R Knee airbag: frontal impact
R Side airbag: side impact
R Window airbag: side impact, rollo ver 1
, frontal
impact
1) Only for cer tain countries.
The front passenger airbag can only be deplo yed
in an accident if thePA SSENGER AIR BAG OFF
indicator la mpis o.. If the front passenger seat is
occupied, make sure, bo thbefore and during thejourne
y,that the status of the front passenger air-
bag is cor rect (/ page 57). &
W
WARNING
ARNING Risk of burns from hot airbag
components
The airbag parts are hot aTer an airbag has
been deplo yed. #
Do not touch the airbag parts. #
Have a depl oyed airbag replaced at a
qu ali/ed specialist workshop as soon as
possible. Mercedes-Benz
recommends that you ha vethe
ve hicle towe dto aqu ali/ed specialist workshop
aTer an accident. Take this into account, particu-
lar lyif a seat belt tensioner is triggered or an air-
bag deplo yed.
If th e seat belt tensioners are triggered or an air-
bag is deplo yed, you will hear a bang, and a small
amount of powder may also be released:
R The bang will not generally a.ect your hearing.
R Ingeneral, the powder released is not hazard-
ous tohealth but may cause short- term breathing di1culties
topersons su.ering from
asthma or other pulmonary conditions.
Pr ov ided it is safe todo so, lea vetheve hicle
immediately or open the window in order to
pr ev ent breathing di1culties. Seat belts
Seat belts
Pr
ot
Pr otection pro
ection pro vided b
vided by t
y the seat belt
he seat belt Alw
aysfa sten your seat belt cor rectly before
starting a journe y.A seat belt can only pr ovide
th e best le vel of pr otection if it is worncor rectl y. &
W
WARNI NG
ARNI NGRisk of injury or dea thdue to
incor rectly fastened seat belt
If th e seat belt is not worncor rectl y,it cannot
per form its intended pr otective function.
In addition, an incor rectly fastened seat belt
can also cause injuries, forex ample, in the
ev ent of an accident or when braking or
ch anging direction suddenl y.48
48
Occupant saf
ety

Airbags
Airbags
Ov
Ov
er
ervie
vie w of airbags
w of airbags 1
Knee airbag
2 Driver's airbag
3 Front passenger airbag
4 Window airbag
5 Side airbag
The installation location of an airbag is identi/ed
by the AIRB AGsymbol.
When enabled, an airbag can pr ovide additional
pr otection forth ere specti ve vehicle occupant. Po
tential pr otection pr ovided byeach airbag:
R Knee airbag: thigh, knee and lo wer leg
R Driver's airbag, front passenger airbag: head
and ribcage
R Window airbag: head
R Side airbag: ribcage and pelvis
* N NOOTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. &
W
WARNING
ARNING Risk of injury or death if the co-
driver airbag is enabled
If th e co-driver airbag is enabled, a child on
th e co-driver seat may be struck bythe co-
driver airbag during an accident.
NEVER use a rear wa rd-facing child restraint
system on a seat wi than ENABLED FRONT
AIR BAG; DEATH or SERIOUS INJURY tothe
CHILD ca n occur. When /tting a
child restraint system tothe front
passenger seat, obser vetheve hicle-speci/c infor-
mation (/ page 77). Also, alw ays obser vethe
no tes on rear wa rd-facing or forw ard-facing child
re straint systems on the front passenger seat
(/ page 76).
Inf Inf or
ormation on aut
mation on aut omatic fr
omatic front passeng
ont passeng er airbag
er airbag
shut
shut o.
o.
The front passenger airbag can only be deplo yed
in an accident if thePA SSENGER AIR BAG OFF
indicator la mpis o.. If the front passenger seat is
occupied, make sure, bo thbefore and during the
journe y,that the status of the front passenger air-
bag is cor rect (/ page 57).
* NO
NO TE
TEDeployment of components of the
re straint system when the front passenger
seat is unoccupied In an accident,
the components of the
re straint system ma y deployunnecessarily on
th e front passenger side if:
R There are heavy objects on the front
passenger seat. Occupant saf
ety
53
53

&
W
WARNI NG
ARNI NGRisk of injury due tomalfunc-
tioning sensors in the door
The function of the airbags can be impaired
due tomodi/cations or incor rect wo rkper-
fo rm ed on the doors or door trim, or if the
doors are damaged. #
Never modify the doors or parts of the
doors. #
Always ha veworkon the doors or door
trim car ried out at a quali/ed specialist
wo rkshop. &
W
WARNING
ARNING Risk of injury due todeplo yed
airbag
A depl oyed airbag no longer o.ers any pr otec-
tion. #
Have theve hicle towe dto a quali/ed
specialist workshop in order tohave the
deplo yed airbag replaced. Ha
ve deplo yed airbags replaced immediatel y. S
S
t
tatus of t
atus of t he fr
he front passeng
ont passeng er fr
er front airbag
ont airbag F
F
unction of t
unction of t he aut
he automatic fr
omatic fr ont passeng
ont passeng er airbag
er airbag
shut
shut o.
o.
The automatic front passen ger airbag shuto. is
able todetect whe ther the front passenger seat is
occupied bya person or a child restraint system.
The front passenger airbag is enabled or disabled
acco rdingl y. &
W WARNI NG
ARNI NGRisk of injury or dea thdue to
objects under the co-driver seat
Objects trapped under the co-driver seat can
inter fere with the function of the automatic
co-driver airbag shuto. or damage the system. #
Do not store any objects under the co-
driver seat. #
When the co-driver seat is occupied,
make sure that no objects are trapped
under the co-driver seat. When /tting a
child restraint system tothe front
passenger seat, obser vetheve hicle-speci/c infor-
mation (/ page 77). Also, alw ays obser vethe
no tes on rear wa rd-facing or forw ard-facing child re
straint systems on the front passenger seat
(/ page 76).
A person on the front passenger seat must
obser vethefo llowing information:
R Fasten seat belts co rrectly (/ page 48).
R Sit in an almost upright seat position with their
back against the seat backrest.
R Sit with their feet resting on the 0oor, if possi-
ble.
The front passenger airbag may otherwise be dis-
abled bymistake, forex ample, in thefo llowing sit-
uations:
R The front passenger transfers their weight by
supporting themsel ves on a vehicle armrest.
R The front passen ger sits in such a wayth at
th eir weight is raised from the seat sur face. &
W
WARNING
ARNING Risk of injury or death due to a
disabled front passenger airbag
The front passenger airbag is disabled when
th ePA SSENGER AIR BAG OFF indicator la mp
is lit. 56 56
Occupant saf
ety

A person in
the front passenger seat could
th en, forex ample, come into contact with the
ve hicle interior, especially if the person is sit-
ting too close tothe cockpit.
If th e front passenger seat is occupied, alw ays
ensure that:
R the classi/cation of the person in the front
passenger seat is cor rect and the front
passenger airbag is enabled or disabled in
accordance with the person in the front
passenger seat.
R the front passenger seat has been mo ved
as far back as possible.
R the person is seated cor rectl y. #
Both before and during the journe y,
ensure that the status of the front
passenger airbag is cor rect. If
th e front passenger seat is occupied, the classi-
/cation of the person or child restraint system on
th e front passenger seat take s place aTer the
front passenger airbag shuto. self-test. The
PA SSENGER AIR BAG indicator la mps display the
status of the front passenger airbag. Alw
ays obser vethe no tes on the function of the
PA SSENGER AIR BAG indicator la mps
( / page 57).
F
F unction of t unction of t he P
he PASSEN
ASSEN GER AIR BA
GER AIR BAG indicat
G indicat or
or
lam
lam ps
ps Ve
hicles without automatic front passen ger airbag
shuto. ha vea special stic ker a1xed tothe side of th
e cockpit on the front passenger side
(/ page 76).
Self-t
Self-t es
est of autt of aut omatic fr
omatic fr ont passeng
ont passeng er airbag shut-
er airbag shut-
o.
o. When theve hicle is switched on, a self-test is per-
fo rm ed during which the two PASSENGER AIR
BAG ON and OFF indicator la mps light up simul ta-
neous ly.
The status of the front passenger airbag is dis-
pla yed via thePA SSENGER AIR BAG indicator
la mp s aTer the self-test:
R ON is lit:
ON is lit: the front passenger airbag may
deploy during an accident.
The indicator lamp goes out aTer 60 seconds.
R ON and OFF ar
ON and OFF ar e no e not lit:
t lit: the front passenger
airbag may deploy during an accident.
R OFF is lit:
OFF is lit: the front passenger airbag is disa-
bled. It will then not be deplo yed in theev ent
of an accident.
If th ePA SSENGER AIR BAG ON indicator la mpis
o., only thePA SSENGER AIR BAG OFF indicator
la mp shows th e status of the front passenger air- Occupant saf
ety
57
57

bag. The
PASSENGER AIR BAG OFF indicator la mp
may be lit continuously or be o..
If th ePA SSENGER AIR BAG OFF indicator la mp
and the6 restraint system warning lamp light
up simultaneousl y,the front passenger seat may
not be used. Also in this case, do not /t a child
re straint system tothe front passenger seat. Ha ve
th e automatic front passenger airbag shuto.
ch ecked and repaired immediately at a quali/ed
specialist workshop.
S S t
tatus display
atus display
If th e front passenger seat is occupied, ensure,
bo th before and during the journe y,that the sta-
tus of the front passenger airbag is cor rect forthe
cur rent situation.
ATer
ATer /tting
/tting a r
a rearw
earw ar
ard-f
d-f acing c
acing c hild r
hild res
estrtraint sy
aint sy s-
s-
t
t em t
em t o t
o the fr
he fr ont passeng
ont passeng er seat
er seat::PA SSENGER AIR
BAG OFF must be lit continuous ly. &
W
WARNI NG
ARNI NGRisk of injury or dea thwhen
using a rear wa rd-facing child restraint sys-
te m while the front passenger airbag is
enabled
If yo u secure a child in a rear wa rd-facing child
re straint system on the front passenger seat
and thePA SSENGER AIR BAG OFF indicator
la mp is o., the front passenger airbag can
deploy in theev ent of an accident.
The child could be struck bythe airbag. #
Always ensu rethat the front passenger
airbag is disabled. The PASSENGER AIR
BAG OFF indicator la mpmust be lit. #
NEVER use a rear wa rd-facing child
re straint system on a seat wi than ENA-
BLED FRONT AIR BAG. This can result in
th e DEATH of or SERIOUS INJURY tothe
CHILD. When /tting a
child restraint system tothe front
passenger seat, obser vetheve hicle-speci/c infor-
mation (/ page 76).
Depending on thech ild restraint system and the
stature of thech ild, thePA SSENGER AIR BAG OFF indicator la
mpmay be o.. In this case, do not /t
th ere ar wa rd-facing child restraint system tothe
front passenger seat.
Instead, /t there ar wa rd-facing child restraint sys-
te m to a suitable rear seat.
ATer
ATer /tting /tting a f
a forw
orw ar
ard-f
d-f acing c
acing c hild r
hild res
estr
traint sy
aint sy s-
s-
t
t em t
em t o t
o the fr
he fr ont passeng
ont passeng er seat
er seat::depending on the
ch ild restraint system and the stature of thech ild,
PA SSENGER AIR BAG OFF may be lit continuous ly
or be o.. Alw ays obser vethefo llowing informa-
tion. &
W
WARNING
ARNING Risk of injury or death due to
incor rect positioning of thefo rw ard-facing
ch ild restraint system
If yo u secure a child in a forw ard-facing child
re straint system on the front passenger seat
th at is positioned too close tothe cockpit, in
th eeve nt of an accident, thech ild could:
R come into contact with parts of theve hi-
cle's interior if thePA SSENGER AIR BAG
OFF indicator la mpis lit, forex ample
R be st ruck bythe airbag if thePA SSENGER
AIR BAG OFF indicator la mpis o. 58
58
Occupant saf
ety

#
Always mo vethe front passenger seat as
fa r back as possible and fully retract the
seat cushion length adjustment. While
doing so, alw ays make sure that the
shoulder belt st rap is cor rectly routed
from the seat belt outlet of theve hicle to
th e shoulder belt guide on thech ild
re straint system. The shoulder belt strap
must be routed forw ards and down wards
from the seat belt outlet. If necessar y,
adjust the front passenger seat accord-
ingl y. #
Always comply with thech ild restraint
system manufactu rer's installation
inst ructions. When /tting a
child restraint system tothe front
passenger seat, obser vetheve hicle-speci/c infor-
mation (/ page 76).
If a per
If a per son is sitting on t son is sitting on t he fr
he front passeng
ont passeng er seat
er seat::
PA SSENGER AIR BAG OFF may be lit continuous ly
or be o., depending on the person's stature. A person on
the front passenger seat must alw ays
obser vethefo llowing information:
R Ifth e front passenger seat is occupied byan
adult or a person with a stature cor responding
to that of an adult, thePA SSENGER AIR BAG
OFF indicator la mpmust be o.. This indicates
th at the front passenger airbag is enabled.
If th ePA SSENGER AIR BAG OFF indicator
la mp is lit continuousl y,an adult or person
with a build cor responding tothat of an adult
must not use the front passenger seat.
Instead, they should use a rear seat.
R Ifth e front passenger seat is occupied by a
person of smaller stature (e.g. a teenager or
small adult), thePA SSENGER AIR BAG OFF
indicator la mpis either lit continuously or
re mains o., depending on the classi/cation.
- Ifth ePA SSENGER AIR BAG OFF indicator
la mp is o.: mo vethe front passenger seat
as far back as possible, or the person of
smaller stature should use a rear seat.
- Ifth ePA SSENGER AIR BAG OFF indicator
la mp is lit continuousl y:the person of smaller stature should not use
the front
passenger seat. &
W
WARNING
ARNING Risk of injury or death when
th ePA SSENGER AIR BAG OFF indicator
la mp is lit
If th ePA SSENGER AIR BAG OFF indicator
la mp remains lit aTer the self-test, the front
passenger airbag is disabled.
If th e front passenger seat is occupied, alw ays
ensure that:
R The classi/cation of the person in the front
passenger seat is cor rect and the front
passenger airbag is enabled or disabled in
accordance with the person in the front
passenger seat.
R The person is seated proper lywith a cor-
re ctly fastened seat belt.
R The front passenger seat has been mo ved
as far back as possible. Occupant saf
ety
59 59

Centre
rear seat 1
U, L
W
W eight cat
eight cat egor
egory III: 22 t
y III: 22 t o 36 kg
o 36 kg
LeT/right rear seat U, L
Centre rear seat 1
U, L
1 Child restraint systems wi th a supporting brac ket are
not suitable forth is seat.
U Suitable forch ild restraint systems of the "Universal"
category in this we ight categor y.
L Suitable for semi-universal child restraint systems
acco rding totheta ble in "Recommended child restraint
systems", or if theve hicle and the seat are listed in the
ch ild restraint system manufacturer's vehicle model list. N
No
ot
tes on c
es on c hild r
hild res
estrtraint syst
aint syst ems on t
ems on t he fr
he front
ont
passeng
passeng er seat
er seat
R If it is absolutely necessary foryo uto /t a
ch ild restraint system tothe front passenger
seat, be sure toobser vethe information on
ch ild restraint systems on the front passenger
seat (/ page 77). R
Obser vethe speci/c inst ructions forth ere ar-
wa rd-facing and forw ard-facing child restraint
systems. If the front passenger seat is occu-
pied, ensure, bo thbefore and during the jour-
ne y,that the status of the front passenger air-
bag is cor rect forth e cur rent situation
(/ page 57).
F
F r
ront passeng
ont passeng er seat
er seat
W
W eight cat
eight cat egor
egory 0: up t
y 0: up t o 10 kg
o 10 kg
Fr ont passenger airbag enabled 1
X
Fr ont passenger airbag disabled 1, 2
U, L
W
W eight cat
eight cat egor
egory 0+: up t
y 0+: up t o 13 k
o 13 kgg
Fr ont passenger airbag enabled 1
X
Fr ont passenger airbag disabled 1, 2
U, L
W W eight cat
eight cat egor
egory I: 9 t
y I: 9 t o 18 kg
o 18 kg
Fr ont passenger airbag enabled 1
UF, L
Fr ont passenger airbag disabled 1, 2
U, L
W W eight cat
eight cat egor
egory II: 15 t
y II: 15 t o 25 k
o 25 kgg Fr
ont passenger airbag enabled 1
UF, L
Fr ont passenger airbag disabled 1, 2
U, L
W
W eight cat
eight cat egor
egory III: 22 t
y III: 22 t o 36 kg
o 36 kg
Fr ont passenger airbag enabled 1
UF, L
Fr ont passenger airbag disabled 1, 2
U, L
1 Ad just the seat cushion inclination so that the
front edge of the seat cushion is in the highest posi-
tion and there ar edge of the seat cushion is in the
lo we st position.
2 The vehicle is equipped with automatic front
passenger airbag shuto.. The PASSENGER AIR BAG
OFF indica tor lamp must be lit.
X Not suitable forch ildren in this we ight categor y.
U Sui table forch ild restraint systems of the "Univer-
sal" category in this we ight categor y. 74
74
Occupant saf
ety

Contact with
thero of when the head
re straint is ful lyex tended and loc ked in place
will not result in any restrictions on use.
O Thechild restraint system must not be put
under strain between thero of and the seat
cushion and/or be /t tedfacing the wrong
direction. Where possible, adjust the seat
cushion inclination accordingl y.
O Thechild restraint system must not be put
under strain bythe head restraint. Adjust the
head restraints as appropria te.
O Make sure that thech ild's feet do not touch
th e front seat. If necessar y,mo vethe front
seat slightly forw ards. #
Installth ech ild restraint system.
The entire base of thech ild restraint system
must al ways rest on the seat sur face of the
re ar seat. #
Always make sure that the shoulder belt strap
is cor rectly routed from the seat belt outlet of
th eve hicle tothe shoulder belt guide on the
ch ild restraint system.
The shoulder belt strap must be routed
fo rw ard from the seat belt outlet. N
No ot
tes on v
es on v ehicles wit
ehicles wit hout aut
hout automatic fr
omatic fr ont
ont
passeng
passeng er airbag
er airbag shut
shuto.
o. St
icke r visible when the front passenger door is
open
Ve hicles without automatic front passen ger airbag
shuto. ha vea special stic ker a1xed tothe side of
th e cockpit on the front passenger side. Make sure
you obser vethefo llowing information:
R Never /t a rear wa rd-facing child restraint sys-
te m to the front passenger seat
R Always /t a rear wa rd-facing child restraint sys-
te m to a suitable rear seat
- Seats suitable for attaching belted child
re straint systems (/ page 73).
- Secure thech ild restraint system wi th the
seat belt on there ar seat (/ page 75).
R Notes on rear wa rd-facing and forw ard-facing
ch ild restraint systems on the front passenger
seat (/ page 76)
N
No ot
tes on r
es on r earw
earwar
ard-f
d-f acing and f
acing and f orw
orwar
ard-f
d-f acing c
acing c hild
hild
r
r es
estr traint syst
aint syst ems on t
ems on t he fr
he front passeng
ont passeng er seat
er seat &
W
WARNING
ARNING Risk of injury or death when
using a rear wa rd-facing child restraint sys-
te m while the front passenger airbag is
enabled
If yo u secure a child in a rear wa rd-facing child
re straint system on the front passenger seat
and thePA SSENGER AIR BAG OFF indicator 76
76
Occupant sa
fety