
#
Also secure thech ild restra int sy stem
with theTo pTe ther belt, if available. When
fitting a child restra int sy stem, be sure to
obser vethe manufacturer's ins tallation instruc‐
tions and the instructions for cor rect use of the
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
with ECE R44, i‑Size child restra int sy stems are
appr oved in accordance with ECE R129.
Only child restra int sy stems that ha vebeen
appr oved in accordance with ECE R44 may be
attached toISOFIX mounting brac kets. ISOFIX
ch ild restra int sy stems which ha vebeen
appr oved in accordance with ECE R-44 and
i‑Size child restra int sy stems which ha vebeen
appr oved in accordance with ECE-R129, can be
attached toi‑Size mounting brac kets. 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 ryor fata l injury if
th ech ild secured weighs more than the
permissible weight forth e ISOFIX or
i‑Size child restra int sy stem
ISOFIX child restra int sy stems or i-Size child
re stra int sy stems do not of fer suf ficient pro‐
te ction forch ildren weighing more than
22 kg, who are secured using the seat belt
integrated in thech ild restra int sy stem.
Fo rex ample. thech ild may not be restra ined
cor rectly in theeve nt of an accident. #
Ifth ech ild weighs more than 22 kg,
only use ISOFIX or i‑Size child restra int
sy stems 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. When
fitting a child restra int sy stem, be sure to
obser vethe manufacturer's ins tallation instruc‐ 48
Occupant saf ety

tions and
the instructions for cor rect use of the
ch ild restra int sy stem.
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. 1
ISOFIX mounting brac kets
2 i-Size mounting brac kets *
NO
TEDama getothe seat belt forthe
centre seat When
fitting a child restra int sy stem, the seat
belt forth e cent reseat could be damaged. #
Make sure that the seat belt is not trap‐
ped. #
Remo veeach co verfo r ISOFIX mounting
brac kets 1 or i‑Size mounting brac kets 2. #
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. #
Afterre moving thech ild seat, replace each
co verfo r ISOFIX mounting brac kets 1 or
i‑Size mounting brac kets 2. Secu
ring TopTe ther &
WARNING Risk of inju ryifth e seat
backrests of there ar seats are not
loc ked af terfitting 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. This poses an
increased risk of injury or even fata l injur y. #
Alw ays lock rear seat backrests af ter
fi tting TopTe ther belts. #
Obser vethe lock verification indicator. If
th e seat backrest is not engaged and loc ked,
th is will be shown in the multifunction display in
th e instrument clus ter.
The risk of injury can be reduced byTopTe ther
as TopTe ther pr ovides an additional connection Occupant saf
ety49

between
thech ild restra int sy stem secured with
ISOFIX and theve hicle.
The child restra int sy stem must be equipped
with a TopTe ther belt. #
If necessar y,mo vehead restra int 1
upwards (→ page97). #
Fold up co ver2 ofTopTe ther anchorage
3. #
Fitthe ISOFIX child restra int sy stem with To p
Te ther. Alw ays comply with thech ild restra int
sy stem manufacturer's ins tallation instruc‐
tions when doing so. #
Route TopTe ther belt 5under head
re stra int 1 between the two head restra int
bars. #
Hook TopTe ther hook 4ofTopTe ther belt
5 without twisting into TopTe ther anchor‐
age 3. #
Tension TopTe ther belt 5. Alw ays comply
with thech ild restra int sy stem manufactur‐
er's ins tallation instructions when doing so. #
Fold down co ver2 ofTopTe ther anchorage
3. #
If necessar y,mo vehead restra int 1 down‐
wa rds (→ page 97). Make sure that you do
not inter fere with the cor rect routing of To p
Te ther belt 5. 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 safer than children secured in
th e front seats. Forth is reason, Mercedes-Benz
stro ngly advises that you ins tall a child 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 airbag shutoff (→ page 39).50
Occupant saf ety

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 airbag
shutoff.
R The unintentionally disabled front passenger
airbag.
R Incor rect positioning of thech ild restra int
sy stem. Wa
rning notice on the front-passen ger sun
visor: &
WARNING Risk of inju ryor death caused
by using a rear wa rd-facing child restra int
sy stem when the front passenger 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
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 make sure that the front passenger
airbag is disabled. The PASSENGER AIR BAG
OFF indicator lamp must be lit. NEVER use a
rear wa rdfacing child restra int on a
seat pr otected byan ACTIVE FRONT AIRB AGin
front of it; DE ATH or SERIOUS INJU RYtothe
CH ILD can occur.
If th ePA SSENGER AIR BAG OFF indicator lamp
goes out, the front passenger airbag is enabled.
Be sure toobser vethe no tes on the safe trans‐
por tation of children (→ page 45). Ve
hicles without the automatic front
passenger airbag shu toff
Ve hicles without automatic front passenger air‐
bag shutoff ha vea special sticke r af fixe dto the
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: Occupant saf
ety51

Label
forch ild restra int sy stems in accord‐
ance with ECE R-44 Label
forch ild restra int sy stems in accord‐
ance with ECE R-12 9
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 mar kedU, 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.
Suitability of the seats for attaching belt-
secu redch ild 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. 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 hicle
seat.
R When youre mo vethech ild restra int sy stem,
fi t th e head restra int immediately and adjust
all the head restra ints again cor rectl y. Occupant saf
ety53

Re
ar seats with a belt airbagWe
ight categories Left,right
Category 0: upto10 kg X
Category 0+: upto13 kg X
Category I: 9to 18 kg X
Category II: 15to25 kg
L1
Category III: 22to36 kg
L1
1 Only use the appr ovedch ild seats KIDFIX or KIDFIX XP. Ve
hicles with belt airbags: When securing a
ch ild in a child restra int sy stem on an outer rear
seat, it is essential toobser vethefo llowing
instructions:
R Only use a child restra int sy stem appr oved
by Mercedes-Benz.
R Obser vethe no tes in "Overview of recom‐
mended child restra int sy stems"
(→ page 59). R
Secure a rear wa rd-facing child restra int sys‐
te m with the ISOFIX child seat attachment or
th e i-Size child seat attachment.
R Secure a forw ard-facing child restra int sys‐
te m with the ISOFIX child seat attachment or
th e i-Size child seat attachment and, if pres‐
ent, theTo pTe ther anchorage. Suitability of
the seats for attaching ISOFIX
ch ild 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: adjust th e driver's and front passenger
seat such that the seat does not touch the
ch ild restra int sy stem. 56
Occupant saf ety

R
Obser vethe manufacturer's ins tallation
instructions forth ech ild restra int sy stem. Legend
for the table:
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 restra int sys‐
te ms in the "Universal" categor y. Fr
ont passenger seat Left rear seat Centrerear seat Rightrear seat
i‑Size child restra int sy stem Xi ‑UXi ‑UOverview of
recommended child restra int
sy stems Ve
hicles with belt airbags: When securing a
ch ild in a child restra int sy stem on an outer rear
seat, it is essential toobser vethefo llowing
instructions:
R Only use a child restra int sy stem appr oved
by Mercedes-Benz. -
Weight category 0, 0+ or 1: thech ild
re stra int sy stem must be ins talled on the
ISOFIX or i-Size child seat attachment.
- Weight category II/III: Only used the
appr ovedch ild seats KIDFIX or KIDFIX XP.
R Secure a rear wa rd-facing child restra int sys‐
te m with the ISOFIX child seat attachment or
th e i-Size child seat attachment. R
Secure a forw ard-facing child restra int sys‐
te m with the ISOFIX child seat attachment or
th e i-Size child seat attachment and, if pres‐
ent, theTo pTe ther anchorage.
R Obser vethe no tes in "Belt airbag in rear seat
belt" (→ page 35). Occupant saf
ety59

R
Shifting the automatic transmission out
of park position jor shifting the manual
transmission into neutral.
R Starting the engine.
In addition, they may operate vehicle equip‐
ment. #
Never lea vechildren and animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tomobile phones if the
"Digital Car Key in the smartphone"
function is activated via the Mercedes
connect me web app. &
WARNING This poses an increased risk
of death due toheat strokeorexposure
to cold in theve hicle
If persons – particularly children – ‑ experi‐
ence prolonged exposure toextremely high
or low temp eratures, this poses a risk of
injury or evenfa ta l injur y. #
Never lea veanyone – pa rticularly chil‐
dren – unat tended in theve hicle. &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are tra velling in theve hicle, they
could:
R Open doo rs,th ereby endangering other
persons or road users.
R Get out of theve hicle and be hit by
oncoming traf fic.
R Ope rate ve hicle equipment and become
trapped, forex ample. #
Alw ays activate thech ild saf ety loc ks
ins talled if children are tra velling in the
ve hicle. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tomobile phones if the "Digital Car
Key in the smartphone"
function is activated via the Mercedes
connect me web app. Child saf
ety loc ksare available forth ere ar doors
and forth ere ar side wind ows.
The child saf ety lock on there ar doors secures
each door separatel y.The doors can no longer
be opened from the inside. 62
Occupant saf ety