Page 49 of 498

&WARNING Risk offata linjur ydue to
ex posur etoextreme heat or coldint he
ve hicle
If people –particularly children –are
ex posed toextreme heat or col dovera n
ex tende dperio doft ime,ther eisar isk of
inju ryor eve nfatal injur y.
#Neverlea ve anyone –p articularly chil‐
dren –unat tende dint hevehicle.
&
WARNING Risk of burn swhen thec hild
seat is exposed todirect sunlight
If th ec hild restra int sy stem is exposed to
direct sunlight or heat, parts could heat up.
Children could suf ferb urns from these parts,
particularly on me tallic parts of thec hild
re stra int sy stem.
#Alw aysm akes uret hat thec hild
re stra int sy stem is no texposedt o
direct sunlight.
#Pr otect it wit hablanket,for example.
#Ifth ec hild restra int sy stem has been
ex posed todirect sunlight ,allowitt o
cool befor esecuri ngachild int oit.
#Ne verlea ve children unatte ndedint he
ve hicle.
The use of seat belts and child restra int sy stems
is requ ired bylawi n:
RAll 50 states
RThe U.S. territories
RThe District of Columbia
RAll Canadian pr ovinces
All child restra int sy stems mus tmeetthe follow‐
ing standards:
RU. S. Federal Mo torV ehicle Saf etyS tandards
21 3a nd 225
RCanadian Mo torV ehicle Saf etyS tandards
21 3a nd 210.2
Yo uc an obtain fur ther information about the
cor rect child restra int sy stem from any
Mercedes-Benz Service Center. To
impr oveprotection forc hildren younger than
12 yearso ld or unde r5ft(1.50 m) in height,
Mercedes-Ben zrecommends youo bserv ethe
fo llowing information:
ROnl ysecur echildren using achild restra int
sy stem whic hisappropriat etothe height,
ag ea nd weight of thec hild and suitable for
Mercedes-Benzv ehicles. Be suretoobserve
th ei nstruction sfor cor rect us eoft hechild
re stra int sy stem.
RAlw aysi ns tallac hild restra int sy stem on a
re ar seat if possible.
ROnly usethef ollowing securing sy stems for
ch ild restra int sy stems:
-th es eat belt sy stem
-th eL ATCH -type (ISOFIX)m ounting brack‐
et s
-th eT op Tether anchorages
RThe manufacturer's ins tallation instructions
fo rt he child restra int sy stem.
RThe warning labels in thev ehicle interior and
on thec hild restra int sy stem.
Occupant saf ety 47
Page 50 of 498

&WARNING Risk of injury or deathcaused
by incor rect ins tallation of thec hild
re stra int sy stem
If th ec hild restra int sy stem is incor rectly
ins talled on asuitable seatin gposition, it
canno tperform its intended pr otectiv efunc‐
tion.
The child canno tberestrained in thee vent of
an accident, heavy braking or asudde n
ch ang eofd irection.
#Alwaysc ompl ywitht he manufacturer's
ins tallation instructions fort he child
re stra int sy stem and its cor rect use.
#Make surethat thee ntir ebase of the
ch ild restra int sy stem alw aysr ests on
th es itting sur face of thes eat.
#Neverp lace objects under or behind
th ec hild restra int sy stem, e.g. cush‐
ions.
#Alw aysu sechild restra int sy stems with
th eo riginal co verd esigned fort hem.
#Alw aysr eplace damaged co vers with
ge nuine co vers.
&
WARNING Risk of accident caused by
incor rectl yins talled child restra int sys‐
te ms
If th ec hild restra int sy stem is no tcorrectly
ins talled or secured, it could release in the
ev ent of an accident, sudden braking or a
sudden chang eind irection.
The child restra int sy stem could be flung
arounda nd hitvehicle occupants. This poses
an increased risk of injur yorevenf atal
injur y.
#Alwaysi ns tallch ild restra int sy stems
cor rectl y,eve nw henn otin use.
#Alw aysc ompl ywitht he child restra int
sy stem manufacturer's ins tallation
instructions.
& WARNING Risk of injury or deathcaused
by theu se of damaged child restra int
sy stems
Child restra int sy stems or their retainin gsys‐
te ms that ha vebeen subjec tedtoal oad in
an accidentm aythen no tbea bletoper form
th eir intended pr otectiv efunction.
The child canno tberestrained in thee vent of
an accident, heavy braking or asudde n
ch ang eofd irection.
#Alwaysr eplace child restra int sy stems
immediatel ythat ha vebeen damaged or
in vo lved in an accident.
#Ha ve thes ecuring sy stems fort he child
re stra int sy stems checkedataq ualified
specialis tworks hop befor einstalling a
ch ild restra int sy stem again.
Ab oos ters eat ma ybenecessar ytoachieve
proper seat belt positioning forc hildren over
40 lbs (1 8kg) in weight or until they reac ha
heightw hereat hree-point seat belt can be fitted
proper lywithout aboos ters eat.
The following no tesm ustbeo bserved:
RWhen ins talling achild restra int sy stem on
th ef ront passenger seat, thei nformation on
ins talling achild restra int sy stem on thef ront
passenger seat (
→pag e53).
48
Occupant saf ety
Page 51 of 498

RInstructions and safetyn otes on thea uto‐
matic front passenger airbag shutoff
(
→pag e41).
RSaf etyn otes on thes eat belt (→pag e33).
RInformation on thec orrect us eoft he seat
belt (→pag e37).
Ac tivating/deactivatin gthe child seat saf ety
fe atur eoft he sea tbelt
&
WARNING Risk of injury or deathifa
seat belt is unfas tened whil ethe vehicle
is in motion
If th es eat belt is released while thev ehicle is
in motion, thec hild restra int sy stem is no
longer cor rectly secure d. Thechild seat
saf etyf eatur eisd eactivated and thes eat
belt is dr awnina bitbyt he inertia reel.
It is therefor enotpossible toengag ethe seat
belt again.
#Pull overand stop thev ehicle safely as
soon as possible, paying attention to
ro ad and traf ficc onditions.
#Activat ethe child seat saf etyf eature
again and cor rectl ys ecure thec hild
re stra int sy stem.
When enabled, thec hild seat saf etyf eature
ensures that thes eat belts of thef ront
passenger seat and rear seatsdon otslac ken
once thec hild restra int sy stem is secured.
Installing achild restra int sy stem:
#Alw aysc ompl ywitht he manufacturer's
ins tallation instructions when ins talling and
re moving thec hild restra int sy stem.
#Pull thes eat belt smoo thly from thes eat belt
outlet.
#En gage thes eat belt tongueint he seat belt
buckle.
Ac tivatin gthe child seat saf etyf eature:
#Pull thes eat belt out fully and le tthe inertia
re el retract it again.
When thec hild seat saf etyf eatur eisa ctiva‐
te d,you should hear aratcheting sound.
#Pusht hechild restra int sy stem down until
th es eat belt sits tightly. Deactivating the
child seat saf etyf eature:
#Pres sthe release button of thes eat belt
buckle.
#Hold thes eat belt tonguea nd guid eitback
to thes eat belt outlet.
LATC H-type (ISOFIX) child seat attachment
Note sonL ATCH-type (ISOFIX) child seat
attachments
& WARNING Risk of‑ injury or deathifthe
maximum permissible gross mass for
usingaL ATCH -type (ISOFIX)c hild
re stra int sy stem is exceeded
Fo rL ATCH -type (ISOFIX)c hildrestra int sys‐
te ms in whic hthe child is secured using the
integrated seat belt integrated in thec hild
re stra int sy stem, thep ermissible gross mass
of thec hild and child restra int sy stem is
73 lb (33 kg).
If th ec hild and thec hild restra int sy stem
to ge ther we igh mor ethan 73lb (33 kg),th e
Occupant saf ety 49
Page 52 of 498

LATC H-type (ISOFIX)c hildrestra int sy stem
wit hintegrated seat belt does no toffer suf fi‐
cient pr otection. An excessiv eload ma ybe
placed on theL ATCH -type (ISOFIX)c hild seat
attachments and thec hild ma ynotbe
re stra ined in thee vent of an accident, for
ex ample.
#Ifth ec hild and thec hild restra int sys‐
te mt ogether weigh mor ethan 73lb
(33 kg),onl yuseaL ATCH -type (ISOFIX)
ch ild restra int sy stem whic hsecures
th ec hild wit hthe vehicle seat belt.
#Also secur ethe child restra int sy stem
wit hthe TopT ether belt, if available.
Alw aysc ompl ywitht he information about the
mass of thec hild restra int sy stem:
Rin them anufacturer's ins tallation and operat‐
ing instructions fort he child restra int sy stem
used
Ron alabel on thec hild restra int sy stem, if
present Re
gular lych eckt hat thep ermissible gross mass
of thec hild and child restra int sy stem is still
being adhered to.
When using achild restra int sy stem, be sur eto
obser vethem anufacturer's ins tallation and
operatin ginstructions as well as its cor rect use
and thes uitability of thes eats fora ttaching a
ch ild restra int sy stem.
ISOFIX is astandardized securing sy stem for
specially designed restra int sy stems. LATC H-
type (ISOFIX)c hildrestra int sy stems are
appr ovedina ccordance wit hECE R44.
Onl ychild restra int sy stems that ha vebeen
appr ovedina ccordance wit hECE R4 4maybe
attached toLATC H-type (ISOFIX)m ounting
brac kets.
Symbo lfor fitting aLATCH -type (ISOFIX)c hild
re stra int sy stem
50
Occupant saf ety
Page 53 of 498

InstallingLATCH -type (ISOFIX) child seat
attachments
& WARNING Risk of‑ injury or deathifthe
maximum permissible gross mass for
usingaL ATCH -type (ISOFIX)c hild
re stra int sy stem is exceeded
Fo rL ATCH -type (ISOFIX)c hildrestra int sys‐
te ms in whic hthe child is secured using the
integrated seat belt integrated in thec hild
re stra int sy stem, thep ermissible gross mass
of thec hild and child restra int sy stem is
73 lb (33 kg).
If th ec hild and thec hild restra int sy stem
to ge ther we igh mor ethan 73lb (33 kg),th e
LA TC H-type (ISOFIX)c hildrestra int sy stem
wit hintegrated seat belt does no toffer suf fi‐
cient pr otection. An excessiv eload ma ybe
placed on theL ATCH -type (ISOFIX)c hild seat
attachments and thec hild ma ynotbe
re stra ined in thee vent of an accident, for
ex ample.
#Ifth ec hild and thec hild restra int sys‐
te mt ogether weigh mor ethan 73lb
(33 kg),onl yuseaL ATCH -type (ISOFIX)
child restra int sy stem whic hsecures
th ec hild wit hthe vehicle seat belt.
#Also secur ethe child restra int sy stem
wit hthe TopT ether belt, if available.
Alw aysc ompl ywitht he information about the
mass of thec hild restra int sy stem:
Rin them anufacturer's ins tallation and operat‐
ing instructions fort he child restra int sy stem
used
Ron alabel on thec hild restra int sy stem, if
present
Re gular lych eckt hat thep ermissible gross mass
of thec hild and child restra int sy stem is still
being adhered to.
When using achild restra int sy stem, be sur eto
obser vethem anufacturer's ins tallation and
operatin ginstructions as well as its cor rect use
and thes uitability of thes eats fora ttaching a
ch ild restra int sy stem.
Befor eevery trip ,makes uret hat theL ATCH -type
(ISOFIX)c hildrestra int sy stem is engaged cor‐
re ctly in bo thLATC H-type (ISOFIX)m ounting
brac kets.
1LA TC H-type (ISOFIX)m ounting brackets
* NO
TEDama getothes eat belt fort he
cente rseat
Wheni nstalling achild restra int sy stem, the
seat belt fort he center seat could be dam‐
aged.
Occupant saf ety 51
Page 54 of 498

#Makesuret hat thes eat belt is no ttrap‐
ped.
#Re mo veeac hcover forL ATCH -type (ISOFIX)
mounting brac kets 1.
#Attach theL ATCH -type (ISOFIX)c hild
re stra int sy stem toboth LATC H-type (ISOFIX)
mounting brac kets 1.
#Afterr emoving thec hild seat, replace each
co verfor LATC H-type (ISOFIX)m ounting
brac kets 1.
Secu ring TopT ether
&
WARNING Risk of injury or deathifthe
re ar seat backrests ar enotloc keda fter
ins talling TopT ether belts
If th er ear seat backrests ar enotloc ked, they
could fold forw ards in thee vent of an acci‐
dent or du ring braking or sudden changes of
direction.
As aresult, child restra int sy stems cannot
per form their intended pr otectiv efunction.
Re ar seat backrests that ar enotloc kedc an
also cause additional injuries, e.g. in the
ev ent of an accident.
#Alw aysl oc kr ear seat backrests af ter
ins talling TopT ether belts.
#Obser vethel oc kv erification ind icator.
If th es eat backres tisnotengaged and loc ked,
th is will be shown on them ultifunction display
on thei nstrument clus ter.
The risk of injur ycan be reduced byTopT ether
as TopT ether pr ovides an additional connection
between thec hild restra int sy stem secured with
LA TC H-type (ISOFIX)a ndthev ehicle.
The child restra int sy stem mus tbeequipped
wit haT opTether belt.
#If necessar y,mo vehead restra int 1
upwards (→pag e90).
#Fold up co ver2 ofTopT ether anchorage
3.
#Ins tallth eL ATCH -type (ISOFIX)c hildrestra int
sy stem wit hTop Tether.A lway sc omply with
th ec hild restra int sy stem manufacturer's
ins tallation instructions when doing so.
52
Occupant saf ety
Page 55 of 498

#RouteT op Tether belt 5under head
re stra int 1 between thet wo head restra int
bars.
#Hook TopT ether hook 4ofTopT ether belt
5 without twisting int oTop Tether anchor‐
age 3.
#Tension TopT ether belt 5.Alway sc omply
wit hthe child restra int sy stem manufactur‐
er's ins tallation instructions when doing so.
#Fo ld down co ver2 ofTopT ether anchorage
3.
#If necessar y,slide head restra int 1 down‐
wa rds(→pag e90). Mak esuret hat youd o
notinter fere wit hthe routin gofT opTether
belt 5.
Child restra int sy stems on thef ront
passenger seat
Note sonc hildrestra int sy stems on thef ront
passenger seat
Ac cident statistic sshowt hat children secured in
th er ear seats ar esafer than children secured in
th ef ront seats. Forthis reason,M ercedes-Benz
stro ngly advises that youi nstallac hild restra int
sy stem on arear seat.
If it is absolutel ynecessar ytoinstallac hild
re stra int sy stem on thef ront passenger seat,
alw ayso bser vethei nformation on thea utomatic
front passenger airbag shutof f(
→page41).
By doing this, youc an avo idrisk sc aused by:
RAc hild restra int sy stem that is no tdetected
by thea utomatic front passenger airbag
shutoff.
RThe unintentionally deactivated front
passenger airbag.
RIncor rect positioning of thec hild restra int
sy stem.
Note sonf orwa rd-facin gand rear wa rd-facing
ch ild restra int sy stems on thef ront
passenger seat
When using arear ward-facing child restra int sys‐
te mont he front passenger seat, thef ront
passenger front air bag mus talway sbed eactiva‐
te d. This is onl ythe case if theP ASSENGER AIR
BA GO FFindicator lam pislit continuously
(
→pag e42).
When usingt hechild restra int sy stem on the
front passenger seat, it is essentialtoo bserve
th ef ollowing:
RMo vethef ront passenger seat as farb acka s
possible.
RSe tthe seat backres tto analmos tvertical
position.
RRe tract thes eat cushion lengt hasfar as pos‐
sible.
RThee ntirebase of thec hild restra int sy stem
mus talway sr estont he sitting sur face of the
front passenger seat.
Occupant saf ety 53
Page 56 of 498

RThe backrestoftheforw ard-facin gchild
re stra int sy stem mus tlie as flat as possible
agains tthe seat backres tofthe front
passenger seat. The child restra int sy stem
mus tnot to ucht he roof or be put under
st ra in by theh ead restra ints.
RIf necessar y,adjus tthe angle of thes eat
backres tand theh ead restra int position
according ly.
RAd jus tthe seat cushion inclination so that
th ef ront edg eofthe seat cushion is in the
highes tposition and ther ear edg eofthe
seat cushion is in thel owest position.
RAlwaysm akes uret hat thes houlder belt
st ra pisc orrectl yr outed from thes eat belt
outle tofthevehicle tothes houlder belt
guide on thec hild restra int sy stem. The
shoulder belt stra pm ustber outed forw ards
and down wardsf romt he seat belt outlet.
RIf necessar y,adjus tthe seat belt outle tand
th ef ront passenger seat accordingly.
RNe verp lace objects under or behind the
ch ild restra int sy stem, e.g. cushions. Alw
aysc omply wit hthe manufacturer's ins talla‐
tion and operatin ginstructions fort he child
re stra int sy stem used.
Child saf etyl oc ks
Ac tivating/deactivatin gthe child saf etyl ock
fo rt he rear doors
&
WARNING Risk of accident and injury
due tochildren lef tunat tende dint he
ve hicle
If yo ul eave children unaccompanied in the
ve hicle, they ma ybea bletos etthev ehicle in
motion, fore xamp leby:
RRe leasing thep arking brake.
RShifting thet ransmission out of park
position j.
RStartin gthe engine.
In addition, they ma yoperat evehicle equip‐
ment.
#Ne verlea ve children and animals unat‐
te nde dint hevehicle.
#When leaving thev ehicle, alw ayst ake
th eS martK eywit hyou and loc kthe
ve hicle.
&
WARNING Risk offata linjur ydue to
ex posur etoextreme heat or coldint he
ve hicle
If people –particularly children –are
ex posed toextreme heat or col dovera n
ex tende dperio doft ime,ther eisar isk of
inju ryor eve nfatal injur y.
#Neverlea ve anyone –p articularly chil‐
dren –unat tende dint hevehicle.
&
WARNING Thereisar isk of accident
and inju ryifyo ul eave children unatte n‐
de dint hevehicle
If ch ildren ar etrave ling in thev ehicle, they
could:
ROpe ndoors,t hereb yendangering other
persons or road users.
54
Occupant saf ety