Page 49 of 602

&
WARNIN GRisk ofinju ryor deat hdueto
inc orrect pos itioning ofthef orwa rd-
fa cing child restra int system
If yo us ecureac hildinaf orwa rd-facin gchild
re stra int system onthef ront passeng erseat
and youp ositiont he front passeng erseat too
clos etot he coc kpit, inthee vent ofan acci ‐
de nt, thec hild could :
R Come intoc ontact with thev ehicle inte‐
ri or ifth eP ASSENGER AIRBAGO FFind i‐
cat orlam pislit,f or exam ple.
R Bestru ck bythea irbag ifth e
PA SSENGER AIRBAGO FFind icat orlam p
is off. #
Alw aysm ove thef ront passeng erseat
as farb acka spossi bleand fully retract
th es eat cushion lengthadjus tmen t.
Alw aysm akes uret hat thes houlder belt
st ra pi sc orrectly routed from thes eat
belt outle tonthe vehicle tothes houl‐
der belt guide onthec hild restra int sys‐
te m. The shou lderbeltstra pm ustb e
ro uted forw ards and down wardsf rom
th ev ehicle beltoutle t.Ifnecessar y, adjus
tthe seat beltoutle tand thef ront
passeng erseat accor dingly. #
Alw ayso bser vethec hild restra int sys‐
te mm anufactur er'sinstallation instruc‐
tion s. When
installing achild restra int system onthe
fr ont passeng ersea t,obse rvet he vehicle-spe‐
cif icinf ormation (/page60).
If ap erson issitting onthef ront passeng er
seat :PA SSENGER AIRBAGO FFma ybelitcon ‐
tin uousl yorbeo ff,d epen dingo nthe per son's
st atur e.
Ap erson onthef ront passeng erseat must
alw ayso bser vethef ollo wing information:
R Ifth ef ront passeng erseat isoccupied byan
adult orap erson withas tatur ec orrespond‐
ing tothat ofan adult ,the PASSENGER AIR
BA GO FFind icat orlam pm ustb eo ff.T his
ind icat esthat thef ront passeng erfront air‐
bag isenabled.
If th eP ASSENGER AIRBAGO FFind icat or
lam pislitcon tinuousl y,an adult orper son
wit hab uildcorresponding tothat ofan adult shoul
dnotuse thef ront passeng erseat.
Ins tead, they should usearear seat.
R Ifth ef ront passeng erseat isoccupied bya
per son ofsmaller statur e(e.g. at eenag eror
small adult), theP ASSENGER AIRBAGO FF
ind icat orlam peither light supc ontin uousl y
or remains off,depe nding onther esult ofthe
cla ssificati on.
- Ifth eP ASSENGER AIRBAGOFF indicat or
lam piso ff:m ove thef ront passeng er
seat asfarb acka spossi bleorthep erson
of smaller statur eshoul dusearear seat.
- Ifth eP ASSENGER AIRBAGOFF indicat or
lam pislitcont inuously: thep erson of
smaller statur eshoul dnotuse thef ront
passeng erseat. &
WARNIN GRisk ofinju ryor deat hwhen
th eP ASSENGER AIRBAGO FFind icat or
lam pislit
If th eP ASSENGER AIRBAGO FFind icat or
lam premain slitaf te rt he system self-t est,
th ef ront passeng erair bag isdeactiv ated. It
will notb ed eplo yedi nt he eve ntofan acci ‐ Occu
pant safety 47
Page 50 of 602

dent
.Int his case, thef ront passeng erair bag
cann otper form itsintended protect ivef unc ‐
tion ,e.g. when aperson isseat edinthef ront
passeng erseat.
That person could, fore xamp le,com einto
con tact with thev ehicle interior ,especially if
th ep erson issitt ing tooc lose tothec ockpit.
If th ef ront passeng erseat isoccupied,
alw ayse nsur ethat :
R The classif ication ofthep erson inthe
fr ont passeng ersea tisc orrect and the
fr ont passeng erair bag isenabl edor
dea ctivated inaccor dance withthe per‐
son inthef ront passeng erseat.
R The person isseat edproper lywit hac or‐
re ctly fastened seatbelt.
R The front passeng erseat hasbeen moved
as farb acka spossi ble. Be
sur etoa lso obs erve thef ollo wing further
re lat ed subj ects:
R Child restra int system onthef ront passeng er
seat (/page60). PRE-S
AFE®
sy stem PRE-
SAFE®
(ant icipa tory occupa ntprotec‐
tion) PRE-
SAFE®
is ab leto detect cer tain critic aldriv‐
ing situat ionsandimplemen tpre-em ptivem eas‐
ur es toprotect thev ehicle occupants.
PRE-S AFE®
can implement thef ollo wing meas‐
ur es independentl yofeacho ther :
R Tight ening thes eat belts onthed rive r's seat
and front passeng erseat.
R Closing thes ide windo ws.
R Vehicl eswith sliding sunroof:Clo sethe
sliding sunroof.
R Vehicl eswith memor yfuncti on:Movethe
fr ont passeng ersea ttoa mor efavo rable
seat position .
R Vehicl eswith memor yfuncti oninthe
re ar passe nger comp artment :mo vethe
out errear seat stoam oref avo rable seat
position . R
Vehicl eswith multico ntour seat :Incr ease
th ea irpr essur eint he seat sidebolsters of
th es eat backres t.
R Vehicl eswith rear seat beltbuckle
ex tender s:tight enseat belts ontheo uter
re ar seat s.
R PRE- SAFE®
Sound :provide dthat them ulti‐
media system isswitc hedon,gener ates a
br iefn oise signa ltos tim ulat et he innat epro‐
te ctiv em echa nism ofap erson's hearing.
* NO
TEDama gecau sed byobject sint he
fo ot we llor behin dthe seat The
automatic adjustment ofthes eat posi‐
tion mayresult indamag etot he seat and/or
th eo bjec t. #
Stow object sinas uitable place. Re
versing theP RE- SAFE®
sy stem mea sures If
an acc iden tdidno to ccur,t he pre-em ptive
measur esthat we retak en arer eve rsed. 48
Occupant safety
Page 51 of 602

Yo
uw illne ed toper form certain settings your‐
self . #
Ifth es eat belt pre-t ension ingisno treduced,
mo vethes eat backres tb acks lightl y.
The locking mechanism releases. Fu
nction ofPRE-S AFE®
PL US (anticipat ory
occupant protection plus) PRE-
SAFE®
PL US can detect cer tain im pact s,
par ticular lyan imm inentrear impact ,and take
pr e-em ptivem easur estoprotect thev ehicle
occupants. Thesemeasur escanno tnecessar ily
pr eve ntan imm inentimpact.
PR E-S AFE ®
PL US can implem entthef ollo wing
measur esindependentl yofeacho ther :
R Tight ening thes eat belts onthed rive r's seat
and front passeng erseat.
R Vehicl eswith electricrear seats: tighten
th es eat belts ontheo uter rear seat s.
R Incr easin gbrake pressur ewhen thev ehicle
is statio nary.This brak ea pplication iscan‐
celed automaticall ywhen thev ehicle pulls
aw ay. If
an accident didnoto ccur ,the pre-em ptive
measur esthat we retake na rereve rsed.
Sy stem limit s
The system will notinitiat eanyaction inthef ol‐
lo wing situations:
R when backing up
The system will notinitiat eanybraking applica‐
tion inthef ollo wing situations:
R whils tdrivin g
or
R when entering orexitin gap arkin gspace
while using ActiveP arking Assist Saf
elyt ransp orting childr eninthev ehic le Alw
ayso bser vewhen childr enaret rave ling
in thev ehic le %
Alsostrictl yobserve thes afet yn otes fort he
specif icsituation. Inthis wa yy ou can recog‐
nize potentia lrisk sa nd avo iddang ersi fc hil‐
dr en aret rave ling inthev ehicle
(/ page50). Be
dilig ent
Bear inmind that neg lectingtos ecur eac hildin
th ec hild restra int system mayhave serious con‐
seq uences. Alwaysb ed iligent insecur ingachild
car efull ybefor ee very jou rney .
To improve protect ion forc hildr enyoung erthan
12 yearso ldor unde r5ft(1.50 m)inheight ,
Mer cedes- Benzrecom mends youo bse rvet he
fo llo wing informatio n:
R Alw ayss ecur ethe child inac hild restra int
sy stem suitable fort his Mer cedes-Benz vehi‐
cle.
R The child restra int system mus tbea ppr opr i‐
at et ot he age, we ight andsize ofthec hild.
R The vehicle seatmustbes uitable fori ns tal‐
ling achild restra int system.
Ac cid ent statis ticss howt hat childr ensecur ed
on ther ear seats areg ene rallys afer than chil‐
dr en secur edon thef ront seats. Forthis reason ,
Mer cedes-Ben zstrong lyadvis esthat youi nstall
ac hild restra int system onarear seat. Occupan
tsafet y 49
Page 52 of 602

Gene
rict erm" child restra int system"
The gener icterm child restra int system isused
in this Oper ator's Manual. Achild restra int sys‐
te mi s,fore xamp le:
R Ababyc arseat
R Arear ward-faci ng child seat
R Aforwa rd-facin gchild seat
R Achild boos ters eat withab ackres ta nd seat
belt guide
Mer cedes-Benz recomme ndsusing achild
boos ters eat withab ackres t.
The child restra int system mus tbea ppr opr iate
to thea ge,w eight andsize ofthec hild.
Obser vinglaws and legalrequ irement s
Alw ayso bser vethel eg alrequ iremen tswhen
using achild restra int system inthev ehicle. Obser
vingstandar dsforc hild restra int sys‐
te ms
All child restra int systems mustmeetthe follo w‐
ing standar ds:
R U.S. Feder alMo torV ehicle SafetyS tandar ds
21 3a nd 225
R Canadi anMo torV ehicle SafetyS tandar ds
21 3a nd 210.2
Conf irmatio nthat thec hild restra int system
com plies withthe standar dscan befound onan
ins truct ion label onthec hild restra int system.
This confirm atio ncan also befound inthei nstal‐
lation instruct ions that arei nc luded withthe
ch ild restra int system. De
tectin grisk s,avo iding danger Secur
ingsystems forc hild restra int systems
in thev ehic le
Onl yusethef ollo wing secur ingsystems forc hild
re stra int systems:
R The LATC H-type (ISOFIX )mounting brac kets
R The vehicle's seatbeltsystem R
The TopT ether anchorages
Ins talling aLATCH -type (ISOFIX )child restra int
sy stem isprefer red.
Sim plya ttac hing tothes ecur ingrings onthe
ve hicle canreduce ther isk ofins talling thec hild
re stra int system incor rectl y.
When securingachild withthe integr ated seat
belt oftheL ATCH -type (ISOFIX )child restra int
sy stem, alwaysc om ply withthe per missible
gr oss weight fort he child and child restra int sys‐
te m( /pag e55).
Ab oos ters eat mayben ecessar ytoa chieve
pr oper seatbeltposition ingforc hildr enove r
40 lbs (18k g)inwe ight orunt ilth ey reac ha
heigh twher eat hree-point seatbeltcanbefitt ed
pr op erly wit hout aboos ters eat.
Mer cedes-Benz recomme ndsasuita blec hild
boos ters eat withab ackres ta nd seat beltguide.
Ad vantag eofar earward-faci ng child
re stra int system
It is prefer able totrans portab abyo ras mall
ch ild inas uitable rear wa rd-faci ng child restra int
sy stem. Inthis case, thec hild sitsintheo ppo‐ 50
Occupant safety
Page 53 of 602

sit
ed irection tothed irect ion oftra vela nd faces
ba ckwa rds.
Babies andsmall childr enhave com parativ ely
we ak nec km usclesinrelation tothes ize and
we ight oftheir head. Therisk ofinjur ytot he cer‐
vical spine during anaccident canbereduced in
ar ear ward-faci ng child restra int system.
Alw ayss ecur eac hildrestra int system cor‐
re ctl y &
WARNIN GRisk ofinju ryor deat hcaused
by inc orrect ins tallation ofthec hild
re stra int system
If th ec hild restra int system isincor rectl y
ins talled onasuitable seatin gposit ion, it
can notp erform itsintended protect ivef unc ‐
tion .
The child can notb erestra ined inthee vent of
an acci dent, hea vybraki ng oras udden
ch ang eofdirect ion. #
Alw aysc om plyw itht he manuf acturer's
ins tallation instruct ions fort he child
re stra int system and itscor rect use. #
Makesur ethat thee ntireb ase ofthe
ch ild restra int system alwaysr ests on
th es itting surface ofthes eat. #
Neverp lace objects underorbehi nd
th ec hild restra int system, e.g.cush‐
ions. #
Alw aysu sechild restra int systems with
th eo riginal coverd esi gned fort hem. #
Alw aysr eplace damagedcovers wit h
ge nui ne covers. &
WARNIN GRisk ofinju ryor deat hfrom
unsecur edchild restra int systems inthe
ve hicle
If th ec hild restra int system isno tc orrectly
ins talled orsecur ed,itcould release inthe
ev ent ofan acciden t,sudden braking ora
sudden chang eind irect ion.
The child restra int system could beflung
ar oun dand hit vehicle occupants. #
Alw aysi ns tallch ild restra int systems
cor rectl y,eve nw henn otinuse. #
Alw aysc om plyw itht he child restra int
sy stem manuf acturer'sinstallation
ins truct ions . R
Alw ayso bser vethec hild restra int system
manuf acturer'sinstallation andopera ting
ins truct ions aswellas thev ehicle-spec ific
inf ormation:
- Installth eL ATCH -type (ISOFIX )child
re stra int system onther ear seat
(/ page55).
- Sec uret he child restra int system withthe
seat beltonther ear seat (/page59).
- Sec uret he child restra int system withthe
seat beltonthef ront passeng erseat
(/ page60). Obser vethes pecif ic
ins truction sfor ther ear ward-faci ng and
fo rw ard-f acin gchild restra int systems
(/ page60).
If th ef ront passeng erseat isoccupied,
ensur e,bo th bef orea nd dur ing thej our‐
ne y,that thes tatus ofthef ront
passeng erairbag iscor rect fort he cur‐
re nt situa tion(/pa ge45). Occupa
ntsaf ety 51
Page 54 of 602

R
Obser vethew arning labels inthev ehicle
int erior and onthec hild restra int system.
R Also secur eTop Tether ifpr esent .
No tesf or vehicl eswith areclining rear seat
When installing achild restra int system, move
th er eclini ngrear seat backres ttoa nalmos t
upr ight posit ion.The recli ning rear seat backres t
mus tbeinc ontact with thec hild restra int sys‐
te m. Obser vethen otes on thec ushionbag
(/ page40).
If yo ui nstallac hild restra int system onthe
re cli ning rear seat ,bes uret oo bser vethec hild
re stra int system manuf acturer'sinstallation
ins truct ions .
Do notm odify thec hild restra int system &
WARNIN GRisk ofinju rydue tomodif i‐
cations tothec hild restra int system
The child restra int system maynolong er
func tion asitis supposed toifyo um ake
mod ificat ionsorattac ho bject stoit,e.g. toys
or unsuit ableaccessor ies.This poses an
incr eased risk ofinjur y! Ne
verm odify thec hild restra int system. Only
att acha ccessor ieswhic hthe manuf acturer
of thec hild restra int system has author ized
especiall yfor this ch ild restra int system. Onl
yusechild restra int systems whicharein
pr oper working condit ion &
WARNIN GRisk ofinju ryor deat hcaused
by theu seofdamag edchild restra int
sy stems
Child restra int systems ortheir retainin gsys‐
te ms that have been subjec tedt oal oad in
an acc iden tmaythen notb ea ble toper form
th eir intended protect ivef unc tion .
The child can notb erestrained inthee vent of
an acci dent, hea vybraki ng oras udden
ch ang eofdirect ion. #
Alw aysr eplace child restra int systems
immediat elyt hat have been damag edor
in vo lved inan acciden t. #
Have thes ecur ingsystems fort he child
re stra int systems checkeda taq ualified spec
ialistworks hop beforei nstalling a
ch ild restra int system again. Av
oid direct sunli ght &
WARNIN GRisk ofburnsw hen thec hild
seat isex posed todirect sunlight
If th ec hild restra int system isex posed to
dir ect sunlight orheat, partscould heatup.
Childr encould sufferb urns from these parts,
par ticular lyon metallic partsof thec hild
re stra int system. #
Alw aysm akes uret hat thec hild
re stra int system isno te xpo sedt o
dir ect sunlight . #
Protect itwit hab lanket,for exam ple. #
Ifth ec hild restra int system has been
ex posed todirect sunlight ,allowi tto
cool befores ecu ring achild intoit. #
Neverlea ve childr enunat tende dint he
ve hicle. 52
Occupant safety
Page 55 of 602

Obser
vewhen stopping orpar king &
WARNIN GRisk ofacci dent andinjury
due tochildr enleftu nat tende dint he
ve hicle
If ch ildr enarel eftu nat tende dint he vehicle,
th ey cou ld:
R Ope ndoors,t her ebye ndang ering other
per sons orroad user s.
R Getoutand bestru ck byoncom ingtraf‐
fi c.
R Ope rate vehicle equipment andbecome
tr apped, fore xamp le.
In addit ion,the childr encould alsosetthe
ve hicle inmo tion, fore xamp leby:
R Releasing thep arking brak e.
R Changing thet ransmiss ionposition .
R Startin gt he vehicle. #
Neverlea ve childr enunat tende dint he
ve hicle. #
When leaving thev ehicle, alwayst ake
th ek eywit hyou and lockthe vehicle. #
Keep thev ehicle keyo utofreac ho f
ch ildr en. &
WARNIN GRisk offata linj ur yd ue to
ex posur etoe xtreme heat orcol dint he
ve hicle
If people –particular lych ildr en–are
ex posed toextreme temp eratur esover an
ex tende dperiodo ftime, ther ei sar iskof
ser ious oreve nfatal inj ury. #
Neverlea ve anyone –p artic ular ly ch il‐
dr en –u nat tende dint he vehicle. #
Neverlea ve anim alsinthev ehicle unat‐
te nde d. Occu
pant safety 53
Page 56 of 602
Ov
ervie wo fsuitable seatsinthev ehic lefori ns talling achild restra int system Secur
ingsystems forc hild restra int systems Ve
hicl eseat
Lef t/right rear seat
Prefer reds ecur ingsystem:
® LATC H-type (ISOFIX )child seat secur ingsys‐
te m
¯ AlsosecureT op Tether ifpr esent
(/ page57) Alt
ernati vesecur ingsystem:
R Vehicle seatbelt
Fr ont passeng erseat
Securing system:
R Vehicle seatbelt Be
suretoo bser ve:
R Ifth ef ront passeng erseat isoccupied, ensure,
bo th bef orea nd dur ing thej our ney,that thes ta‐
tus ofthef ront passeng erairbag iscor rect fort he
cur rent situa tion(/pa ge45) .
R Noteso na utomatic front passeng erairbag shut‐
of f(/ pag e44).
Cen terr ear seat
Securing system:
R Vehicle seatbelt
¯ Alsosecur eTop Tether ifpr esent
(/ page57) 54
Occupant safety