0007
Alw ays mo vethe front passenger seat
as far back as possible and fully retract
th e seat cushion length adjustment.
Alw ays make sure that the shoulder belt
st ra p is cor rectly routed from the seat
belt outlet on theve hicle tothe shoul‐
der belt guide on thech ild restra int sys‐
te m. The shoulder belt stra p must be
ro uted forw ards and down wards from
th e seat belt outlet. If necessar y,adjust
th e seat belt outlet and the front
passenger seat accordingly. 0007
Alw ays obser vethech ild restra int sys‐
te m manufacturer's ins tallation instruc‐
tions. When
fitting a child restra int sy stem tothe front
passenger seat, obser vetheve hicle-specific
information (0013 page 66).
If a person is sitting on the front passenger
seat: PASSENGER AIR BAG OFF may be lit con‐
tinuously or be off, depending on the person's
st ature. 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 respond‐
ing tothat of an adult, thePA SSENGER AIR
BA G OFF indicator lamp must be off. This
indicates that the front passenger front air‐
bag is enabled.
If th ePA SSENGER AIR BAG OFF indicator
lamp is lit continuousl y,an adult or person
with a build cor responding tothat of an adult
should not use the front passenger seat.
Ins tead, 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 lamp either lights up continuously
or remains off, depending on there sult of the
classi fication.
- Ifth ePA SSENGER AIR BAG OFF indicator
lamp is off: mo vethe front passenger
seat as far back as possible, or the per‐
son of smaller stature should use a rear
seat. -
Ifth ePA SSENGER AIR BAG OFF indicator
lamp is lit continuously: the person of
smaller stature should not use the front
passenger seat. 000A
WARNING Risk of inju ryor death when
th ePA SSENGER AIR BAG OFF indicator
lamp is lit
If th ePA SSENGER AIR BAG OFF indicator
lamp remains lit af terth e sy stem self-test,
th e front passenger airbag is disabled. It will
not be deplo yed in theeve nt of an accident.
In this case, the front passenger airbag can‐
not per form its intended pr otective function,
e.g. when a person is seated in the front
passenger seat.
That person could, forex ample, come into
contact with theve hicle interior, especially if
th e person is sitting too close tothe cockpit.
If th e front passenger seat is occupied,
alw ays ensure that:
R The classification of the person in the
front passenger seat is cor rect and the Occupant saf
ety43
PRE-SAFE
®
PLUS can implement thefo llowing
measures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Activating there ar hazard warning lights at a
higher flashing frequenc y.
R Increasing brake pressure when theve hicle
is stationar y.This brake application is cancel‐
led automatically when theve hicle pulls
aw ay.
If an accident did not occur, the pre-em ptive
measures that we retake n are reve rsed.
Sy stem limitations
The sy stem will not initiate any action in thefo l‐
lowing situations:
R when reve rsing
or
R when theve hicle is towing a trailer and there
is a risk of a rear impact The sy
stem will not initiate any braking applica‐
tion in thefo llowing situations:
R whilst driving
or
R when entering or exiting a parking space
while using Active Parking Assist Safely transporting
children in theve hicle Alw
ays obser vewhen children are tr avelling
in theve hicle 0009
Also strictly obser vethe saf ety no tesfo rthe
specific situation. In this wa yyo u can recog‐
nise po tential risks and avoid dangers if chil‐
dren are tr avelling in theve hicle
(0013 page 46).
Be diligent
Bear in mind that neglecting tosecure a child in
th ech ild restra int sy stem may ha veserious con‐
sequences. Alw ays be diligent in securing a child
carefully before every journe y. To
impr ove pr otection forch ildren younger than
12 years old or under 1.50 m in height,
Mercedes-Benz recommends you obse rvethe
fo llowing information:
R Alw ays secure thech ild in a child restra int
sy stem suitable forth is Mercedes-Benz vehi‐
cle.
R The child restra int sy stem must be appropri‐
ate tothe age, weight and size of thech ild.
R The vehicle seat must be suitable forfitting a
ch ild restra int sy stem (0013 page 52).
Ac cident statistics show that children secured
on there ar seats are generally sa ferth an chil‐
dren secured on the front seats. Forth is reason,
Mercedes-Benz stronglyadvises that youfit a
ch ild restra int sy stem toare ar seat.
Generic term"child restra int sy stem"
The generic term child restra int sy stem is used
in this Owner's Manual. A child restra int sy stem
is, forex ample:
R a baby car seat
R are ar wa rd-facing child seat Occupant saf
ety45
R
afo rw ard-facing child seat
R ach ild boos ter seat with a backrest and seat
belt guide
Mercedes-Benz recommends using a child
boos ter seat with a backrest.
The child restra int sy stem must be appropriate
to the age, weight and size of thech ild.
Observing la wsand legal requ irements
Alw ays obser vethe legal requ irements when
using a child restra int sy stem in theve hicle.
Make sure that thech ild restra int sy stem is
appr oved in accordance with theva lid test speci‐
fi cations and guidelines. Further information can
be obtained at a qualified specialist workshop.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre forth is purpose.
Only use appr ovedch ild 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) Information on
child restra int sy stem appr oval
categories and de tails on the appr oval label on
th ech ild restra int sy stem (0013 page 53). De
tecting risks, avoiding danger Securing sy
stems forch ild restra int sy stems
in theve hicle
Only use thefo llowing securing sy stems forch ild
re stra int sy stems:
R the ISOFIX or i-Size mounting brac kets
R theve hicle's seat belt sy stem
R theTo pTe ther anchorages
Fitting an ISOFIX or an i-Size child restra int sys‐
te m is prefer red.
Simply attaching tothe securing rings on the
ve hicle can reduce therisk of fitting thech ild
re stra int sy stem incor rectly.
When secu ring a child with the integrated seat
belt of the ISOFIX or i-Size child restra int sys‐
te m, alw ays comply with the permissible gross
we ight forth ech ild and child restra int sy stem
(0013 page 58). Ad
vantage of a rear wa rd-facing child
re stra int sy stem
It is preferable totranspo rta baby or a small
ch ild in a suitable rear wa rd-facing child restra int
sy stem. In this case, thech ild sits in the oppo‐
site direction tothe direction of tra vel and faces
ba ckwa rds.
Babies and small children ha vecompa ratively
we ak neck muscles in relation tothe size and
we ight of their head. The risk of injury tothe cer‐
vical spine during an accident can be reduced in
a re ar wa rd-facing child restra int sy stem.
Alw ays secure a child restra int sy stem cor‐
re ctly 000A
WARNING Risk of inju ryor death caused
by incor rect ins tallation of thech ild
re stra int sy stem
If th ech ild restra int sy stem is incor rectly
ins talled on a suitable seating position, it
cannot per form its intended pr otective func‐
tion. 46
Occupant saf ety
The
child cannot be restra ined in theeve nt of
an accident, heavy braking or a sudden
ch ange of direction. 0007
Alw ays comply with the manufacturer's
ins tallation instructions forth ech ild
re stra int sy stem and its cor rect use. 0007
Makesure that the entire base of the
ch ild restra int sy stem alw aysre sts on
th e sitting sur face of the seat. 0007
Never place objects under or behind
th ech ild restra int sy stem, e.g. cush‐
ions. 0007
Alw ays use child restra int sy stems with
th e original co ver designed forth em. 0007
Alw aysre place damaged co vers with
ge nuine co vers. 000A
WARNING Risk of inju ryor death from
unsecured child restra int sy stems in the
ve hicle
If th ech ild restra int sy stem is not cor rectly
ins talled or secured, it could release in the ev
ent of an accident, sudden braking or a
sudden change in direction.
The child restra int sy stem could be flung
around and hit vehicle occupants. 0007
Alw aysfit ch ild restra int sy stems cor‐
re ctly, even when not in use. 0007
Alw ays comply with thech ild restra int
sy stem manufacturer's ins tallation
instructions. R
Alw ays obser vethech ild restra int sy stem
manufacturer's ins tallation and operating
instructions as well as theve hicle-specific
information:
- Fitthe ISOFIX or i-Size child restra int sys‐
te m to there ar seat (0013 page 58).
- Secure thech ild restra int sy stem with the
seat belt on there ar seat
(0013 page64).
- Secu rethech ild restra int sy stem with the
seat belt on the front passenger seat
(0013 page67). Obser vethe specific
instructions forth ere ar wa rd-facing and fo
rw ard-facing child restra int sy stems
(0013 page 66).
If th e front passenger seat is occupied,
ensure, bo thbefore and during the jour‐
ne y,that thest atus of the front
passenger front airbag is cor rect forthe
cur rent situation (0013 page 41).
R Obser vethewa rning labels in theve hicle
interior and on thech ild restra int sy stem.
R Also secure TopTe ther if present.
Do not alter thech ild restra int sy stem 000A
WARNING Risk of inju rydue toaltera‐
tions tothech ild restra int sy stem
The child restra int sy stem may no longer
function as it is supposed toifyo u make
alterations or attach objects toit, e.g. toys or
unsuitable accessories. This poses an
increased risk of injury!
Ne ver alter thech ild restra int sy stem. Only
attach accessories which the manufacturer
of thech ild restra int sy stem has authorised
especially forth is ch ild restra int sy stem. Occupant saf
ety47
Mercedes‑Benz
recommends Mercedes-Benz
care products for cleaning child restra int sys‐
te ms recommended byMercedes-Benz.
Only use child restra int sy stems which are in
proper working condition 000A
WARNING Risk of inju ryor death caused
by the use of damaged child restra int
sy stems
Child restra int sy stems or their retaining sys‐
te ms that ha vebeen subjec tedto a load in
an accident may then not be able toper form
th eir intended pr otective function.
The child cannot be restra ined in theeve nt of
an accident, heavy braking or a sudden
ch ange of direction. 0007
Alw aysre place child restra int sy stems
immediately that ha vebeen damaged or
in vo lved in an accident. 0007
Have the securing sy stems forth ech ild
re stra int sy stems checked at a qualified
specialist workshop before ins talling a
ch ild restra int sy stem again. Av
oiding direct sunlight 000A
WARNING Risk of bu rns when thech ild
seat is exposed todirect sunlight
If th ech ild restra int sy stem is exposed to
direct sunlight or heat, parts could heat up.
Children could suf fer burns on these parts,
particularly on me tallic parts of thech ild
re stra int sy stem. 0007
Alw ays make sure that thech ild
re stra int sy stem is not exposed to
direct sunlight. 0007
Protect it with a blank et,fo rex ample. 0007
Ifth ech ild restra int sy stem has been
ex posed todirect sunlight, allow it to
cool before secu ring a child into it. 0007
Never lea vechildren unat tended in the
ve hicle. Obser
vewhen stopping or parking 000A
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If yo u lea vechildren unat tended in theve hi‐
cle, they may be able toset theve hicle in
motion, forex ample by:
R releasing the parking brake.
R shifting the automatic transmission out of
park position 005Dor shifting manual trans‐
mission into idle position.
R starting the engine.
In addition, they may operate vehicle equip‐
ment and become trapped. 0007
Never lea vechildren and animals unat‐
te nded in theve hicle. 0007
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tothe digital vehicle
ke y if the "Digital Vehicle Key" function
is activated via Mercedes me connect. 48
Occupant saf ety
000A
WARNING Risk offata l injury due to
ex posure toextreme heat or cold in the
ve hicle
If people –particularly children – are exposed
to extreme temp eratures over an extended pe
riod of time, there is a risk of serious or
ev en fata l injury! 0007
Never lea veanyone – pa rticularly chil‐
dren – unat tended in theve hicle. 0007
Never lea veanimals in theve hicle unat‐
te nded. Overvi
ewofrecommended child restra int sy stems Fu
rther information on the cor rect child restra int sy stem can be obtained at a qualified specialist workshop. Mercedes-Benz recommends that you use
a Mercedes-Benz Service Centre forth is purpose. Occupant saf
ety49
Fr
ont passenger seat Left/rightrear seat
i-Size child restra int sy stem
(ISO/R2, ISO/F2X, ISO/B2,
ISO/B3) Xi
‑U
X Not suitable for an i-Size child restra int sy stem in the "Universal" categor y.i-U Suitable forfo rw ard-facing and rear wa rd-facing i-Size child restrai nt sy stems
in the "Universal" categor y.Fi
tting the ISOFIX or i‑Size child restra int
sy stem on there ar seat 000A
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. 0007
Make sure that the seat backrest and
th ere ar ben chseat/rear seat are
engaged before everytrip. If
th ere ar seat backrest is not engaged and
loc ked, there d lock verification indicator will be
visible. 000A
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 the58
Occupant saf ety
0073
The
child restra int sy stem must not be put
under stra in by the head restra ints. Adjust
th e head restra ints according ly. When
fitting an i‑Size child restra int sys‐
te m, obser vethefo llowing:
0073 When using a
rear wa rd-facing child
re stra int sy stem: adjust the front seat so
th at it does not touch thech ild restra int sys‐
te m.
0073 When using a
forw ard-facing child
re stra int sy stem: remo vethe head
re stra int from there spective seat, if possi‐
ble. In addition, the seat backrest of the
ch ild restra int sy stem must, as far as possi‐
ble, lie flat against the backrest of theve hi‐
cle seat.
When youre mo vethech ild restra int sys‐
te m, ins tallth e head restra int again immedi‐
ately and adjust all the head restra ints cor‐
re ctly. 1
ISOFIX mounting brac ket
2 i‑Size mounting brac ket
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 thmounting
brac kets in theve hicle. 000E
NO
TEBe careful not todamage the seat
belt forth e cent reseat when fitting the
ch ild restra int sy stem 0007
Make sure that the seat belt is not trap‐
ped. 0007
Attach the ISOFIX or i‑Size child restra int sys‐
te m to both mounting brac kets in theve hicle. Securing
TopTe ther 000A
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. 60
Occupant saf ety