
should not use
the front passenger seat.
Ins tead, they should use a rear seat.
R A person with a smaller build (e.g. a teenager
or small adult), thePA SSENGER AIR BAG OFF
indicator lamp either lights up and remains lit
depending on there sult of the classification
or, alternatively, goes out.
- PASSENGER AIRB AGOFF is off: mo vethe
front passenger seat as far back as possi‐
ble or a person with a smaller build
should use a rear seat.
- Ifth ePA SSENGER AIRB AGOFF indicator
lamp is lit continuously: a person with a
smaller build should not use the front
passenger seat. &
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
con tact wi th 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
front passenger airbag is enabled or disa‐
bled in accordance with the person in the
front passenger seat.
R The person is sea ted properly with a cor‐
re ctly fastened seat belt.
R The front passenger seat has been mo ved
as far back as possible. Fu
rther related subjects:
R Child restra int sy stem on the front passenger
seat (→ page 50).
R Suitable positioning of thech ild restra int sys‐
te m (→ page 52). PRE-SAFE
®
sy stem Information on PRE-
SAFE®
(anticipa tory
occupant pr otection) PRE-
SAFE®
is able todetect cer tain critical driv‐
ing situations and implement pre-em ptive meas‐
ures toprotect theve hicle occupants.
PRE-SAFE ®
can implement thefo llowing meas‐
ures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Closing the side windo ws.
R Vehicles with sliding sunroof: Closethe
sliding sunroof.
R Vehicles with memory function: Moving
th e front passenger seat toa more favo ura‐
ble seat position.
R Vehicles with multicontour seat: Increas‐
ing the air pressure in the seat side bols ters
of the seat backrest.
R PRE-SAFE ®
Sound: Pr ovided that the multi‐
media sy stem is switched on, generates a Occupant sa
fety 43 

side inoperative See Owner's Manual
is dis‐
pla yed (→ page 446). Children in
theve hicle Note
s onthe safe transportation of children &
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 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 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. #
Alw ays make sure that thech ild
re stra int sy stem is not exposed to
direct sunlight. #
Protect it with a blank et,fo rex ample. #
Ifth ech ild restra int sy stem has been
ex posed todirect sunlight, allow it to
cool before secu ring a child into it. #
Never lea vechildren unat tended in the
ve hicle. To
impr oveprotection forch ildren younger than
12 years old and under 1.50 m in height,
Mercedes-Benz recommends you obse rvethe
fo llowing no tes:
R Only secure children using a child restra int
sy stem which is suitable and recommended
fo r Mercedes-Benz vehicles, as well as appro‐
priate tothe height, age and weight of the
ch ild. Be sure toobser vethe instructions for
cor rect use of thech ild restra int sy stem. Occupant saf
ety45 

R
Alw ays ins tall a child restra int sy stem on a
re ar seat if possible.
R Onlyuse thefo llowing securing sy stems for
ch ild restra int sy stems:
- the seat belt sy stem
- the ISOFIX or i-Size mounting brac ket
- theTo pTe ther anchorages
R The manufacturer's ins tallation instructions
fo rth ech ild restra int sy stem.
R The warning labels in theve hicle interior and
on thech ild restra int sy stem. &
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.
The child cannot be restra ined in theev ent of
an accident, heavy braking or a sudden
ch ange of direction. #
Alw ays comply with the manufacturer's
ins tallation instructions forth ech ild
re stra int sy stem and its cor rect use. #
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. #
Never place objects under or behind
th ech ild restra int sy stem, e.g. cush‐
ions. #
Alw ays use child restra int sy stems with
th e original co ver designed forth em. #
Alw aysre place damaged co vers with
ge nuine co vers. &
WARNING Risk of accident caused by
incor rectly ins talled child restra int sys‐
te ms
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. This poses
an increased risk of injury or even death! #
Alw ays ins tallch ild restra int sy stems
cor rectl y,eve n when not in use. #
Alw ays comply with thech ild restra int
sy stem manufacturer's ins tallation
instructions. &
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. #
Alw aysre place child restra int sy stems
immediately that ha vebeen damaged or
in vo lved in an accident. 46
Occupant saf ety 

#
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. %
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 50).
R Notes on attaching suitable child restra int
sy stems (→ page 52).
R Notes on recommended child restra int sys‐
te ms (→ page 59).
R Instructions and saf ety no tes on the auto‐
matic front passenger airbag shutoff
(→ page 39).
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 Information on
the 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 theev ent 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‐
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. Occupant sa
fety 47 

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‐ 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 48
Occupant sa fety 

*
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 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 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 between
thech ild restra int sy stem secured with
ISOFIX or i-Size and theve hicle.
The child restra int sy stem must be equipped
with a TopTe ther belt. Occupant saf
ety49 

#
If necessar y,mo vehead restra int 1
upwards Adjusting there ar seat head
re stra ints(→ page97). #
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. #
Route TopTe ther belt 5under head
re stra int 1 between the two head restra int
bars. #
Guide TopTe ther belt 5down wards
between combined luggage co ver and net 3
and backrest 2. #
Hook TopTe ther hook 6ofTopTe ther belt
5 without twisting into TopTe ther anchor‐
age 4. #
Tension TopTe ther belt 5. Alw ays comply
with thech ild restra int sy stem manufactur‐
er's ins tallation instructions when doing so. #
If necessar y,mo vehead restra int 1 down‐
wa rdsAd justing there ar seat head
re stra ints(→ page97). 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).
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: 50
Occupant saf ety 

&
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: The
following no tes must be obser ved:
R Onforw ard-facing and rear wa rd-facing child
re stra int sy stems on the front passenger seat
(→ page 51).
R On attaching suitable child restra int sy stems
(→ page 52).
Fo rw ard-facing and rear wa rd-facing child
re stra 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 airbag must alw ays be disabled. This
is only the case if thePA SSENGER AIR BAG OFF
indicator lamp is lit continuously (→ page41).
When using a child restra int sy stem on the front
passenger seat, it is essential toobser vethefo l‐
lowing:
R Movethe front passenger seat as far back as
possible.
R Set the seat backrest toan almost vertical
position.
R Retract the seat cushion length as far as pos‐
sible. Occupant saf
ety51