Page 41 of 348

Av
oid direct sunlight &
WARNING Risk of bu rnsw hen 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,
particular lyon me tallic parts of thec hild
re stra int sy stem. #
Alwaysm akes uret hat thec hild
re stra int sy stem is no texpose dtodirect
sunlight. #
Protect it wit hablanket,for example. #
Ifth ec hild restra int sy stem has been
ex posed todirect sunlight ,allowitto
cool befor esecu ring achild int oit. #
Neverlea ve children unat tende dint he
ve hicle. Obser
vewhen stopping or parking &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If ch ildren ar eleftu nat tende dint hevehicle,
th ey could:
R Ope ndoors,t hereb yendangering other
persons or road users.
R Getout and be stru ck byoncomin gtraf‐
fi c.
R Ope rate ve hicle equipment and become
trapped, fore xamp le.
In addition ,the children could also se tthe
ve hicle in motion, fore xamp leby:
R Releasing thep arking brake.
R Changing thet ransmission position.
R Startin gthe vehicle. #
Neverlea ve children unat tende dint he
ve hicle. #
When leaving thev ehicle, alw ayst ake
th ek eywit hyou and loc kthe vehicle. #
Keep thev ehicle keyo ut of reac hof
ch ildren. &
WARNING Risk offata linjur ydue to
ex posur etoextreme hea torcoldint he
ve hicle
If people –particular lych ildren –areexposed
to extreme temp eratures overane xtended
perio doft ime,ther eisar isk of serious or
eve nfatal injur y. #
Neverlea ve anyone –p articularly chil‐
dren –unat tende dint hevehicle. #
Neverlea ve animals in thev ehicle unat‐
te nded. Occupant sa
fety 39
Page 42 of 348

Overvie
wofsuitable seats in thev ehicle fori nstalling achild restra int sy stem Securing sy
stems forc hild restra int sy stems Ve
hicl eseat
Left/right rear seat
Preferreds ecuring sy stem:
® LATC H-type (ISOFIX )child
seat securing sy stem
(/ page41)
¯ Ifav ailable, also secur ewith
To pT ether (/ page42) Alternativ
esecuring sy stem:
R Seat belt on vehicle seat
Co-driver seat Securing system:
R Seat belt on vehicle seat
Center rear seat
Securing system:
R Seat belt on vehicle seat
¯ Ifav ailable, also secur ewith
To pT ether (/ page42) Ac
tivating/deactivatin gthe special seatbelt
re tractor of the seat belt &
WARNING Risk of inju ryor deat hifa
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 lon‐
ge rc orrectl ys ecu red. The child seat saf ety
fe atur eisd eactivated and thes eat belt is
dr aw nina 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 ecu rethec hild
re stra int sy stem. Re
quirements
When enabled, thes pecial seatbelt retractor
ensures that thes eat belts on thec o-driver seat
and ther ear seats do no tslac keno nce thec hild
re stra int sy stem is secured.
The seat belts on thef ollowing seats ar eequip‐
ped wit haspecial seatbelt retractor:
R Co-driver seat
R Rear seats Installin
gachildrestra int sy stem #
When ins talling achild restra int sy stem,
alw ayso bser vethem anufacturer's ins talla‐
tion and operatin ginstructions fort he child
re stra int sy stem used as well as then otes in
th ese Operating Instructions. #
Pull thes eat belt smoo thly from thes eat belt
outlet. #
Enga gethes eat belt tongu eint he seat belt
buckle.
Ac tivatin gthe special seatbelt retractor #
Extend thes eat belt full yand then allo wthe
inertia reel to retract theb elt.
When thes pecial seatbelt retractor is acti va‐
te d, yous houl dhear aratcheting sound. #
Push thec hild restra int sy stem down until the
seat belt is tight.
Deactivating the special seatbelt retractor #
Press ther elease button of thes eat belt
buckle. #
Hold thes eat belt tongu eand guid ebackto
th es eat belt outlet. 40
Occupant saf ety
Page 43 of 348

At
tachin gthe child restra int sy stem with
LA TC H-type (ISOFIX) tother ear seat Installing
aLATCH -type (ISOFIX) child
re stra int sy stem on ther ear seat &
WARNING Risk of inju ryor deat hifthe
permissible gross mass of thec hild and
ch ild restra int sy stem is exceeded
Fo rL ATCH -type (ISOFIX )child restra int sys‐
te ms in whic hthe child is secured using the
integ rateds eat belt in thec hild restra int sys‐
te m, thep ermissible gross mass of thec hild
and child restra int sy stem is 73lb (33 kg).
If th ec hild and thec hild restra int sy stem
to ge ther we igh mor ethan 73lb (33 kg),the
LA TC H-type (ISOFIX )child restra int sy stem
wit hintegrated seat belt does no toffer suf fi‐
cient pr otection .Anexcessiv eload ma ybe
placed on theL ATCH -type (ISOFIX )child 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), use onl yaLATCH -type (ISOFIX)
ch ild restra int sy stem that secures the
ch ild 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:
R Inthem anufacturer's ins tallation and operat‐
ing instructions fort he child restra int sy stem
used
R Onalabel on thec hild restra int sy stem, if
av ailable
Chec kregularly that thep ermissible gross mass
of thec hild plus thec hild restra int sy stem is not
exc eeded.
When ins talling achild restra int sy stem, obser ve
th ef ollowing:
0073 Alw
ayso bser vethec orrect use and sui tabil‐
ity of thes eats fora ttaching achild restra int
sy stem.
0073 Alw
aysc ompl ywitht he manufacturer's
ins tallation and operatin ginstructions fort he
ch ild restra int sy stem used. 0073
Mak
esuret hat thec hild's feet do no ttouch
th ef ront seat. If necessar y,mo vethef ront
seat slightl yforwa rds.
® When ins talling aLATCH -type (ISOFIX )child
re stra int sy stem, also obser vethef ollowing:
0073 When using
acategor y0/0+ bab ycar
seat and acategor yIrearward-facing
ch ild restra int sy stem on arear sea t:the
re ar seat mus tbeinstalled in thed irection of
tra vel.Ad jus tthe rear seat and/or front seat
so that thef ront seat does no ttouc hthe
ch ild restra int sy stem.
0073 When using
acategor yIforwa rd-facing
ch ild restra int sy stem: theb ackres tofthe
ch ild restra int sy stem must, as farasp ossi‐
ble, lie flat agains tthe backres tofthevehi‐
cle seat.
0073 Fo
rc ertain child restra int sy stems of weight
categor yIIorIII,ther em aybe limitations for
th em aximum size setting, e.g. due topossi‐
ble con tact wi th theroof.
0073 The
child restra int sy stem mus tnotbe trap‐
ped between ther oof and thes eat and/or
twis tedw hen ins talled.
0073 The
child restra int sy stem mus tnotbe put
under stra in by theh ead restra ints. Adjust
th eh ead restra int sasa ppropriate. 1
LATC H-type (ISOFIX )mounting brac kets
Befor eevery journe y,mak esuret hat theL ATCH-
type (ISOFIX )child restra int sy stem is engaged
cor rectl yinb othm ounting brac kets in thev ehi‐
cle. Occupant saf
ety41
Page 44 of 348

*
NO
TEBe careful no ttodamag ethe seat
belt fort he center seat when ins talling
th ec hild restra int sy stem #
Mak esuret hat thes eat belt is no ttrap‐
ped. #
Attach theL ATCH -type (ISOFIX )child restra int
sy stem toboth mounting brac kets 1 inthe
ve hicle. Securing
TopT ether &
WARNING Risk of inju rydue toincor rect
attachment of theT op Tether belt
If yo ua ttac hthe TopT ether belt incor rectl y,
e.g. on an eyeletint he cargo compartment,
th ec hild restra int sy stem will no thaveb een
secured cor rectly.
In an accident, it will therefor ebeu nableto
pr ov ide thei ntended le velofp rotection. #
Onlyevera ttac hthe TopT ether hook to
th ed esignated TopT ether anchorage. ¯
Ifth ec hild restra int sy stem is equipped
wit haT opTether belt:
The risk of injur ycan be reduced byTo p
Te ther.T he TopT ether belt enables an
additional connection between thec hild
re stra int sy stem attached wit hLATCH -type
(ISOFIX )and thev ehicle. To
pT ether anchorages 1arel ocated on the
bac koft herear ben chseat on theb enc hseat
legs. #
If necessar y,mo vetheh ead restra int
upwards (/ page75). #
Installth eL ATCH -type (ISOFIX )child restra int
sy stem wit hTop Tether.C ompl ywitht he child
re stra int sy stem manufacturer's ins tallation
instructions when doing so. #
Guide TopT ether belt 3under theh ead
re stra int between thet wo head restra int bars. #
Hook TopT ether hook 2intoT op Tether
anchorage 1without twisting. #
Tensio nTop Tether belt 3.Comply wit hthe
ch ild restra int sy stem manufacturer's ins talla‐
tion instructions when doing so. #
If necessar y,slide theh ead restra int down‐
wa rds( / pag e75). Mak esuret hat youdo
no tinter fere wit hthe cor rect routin gofT op
Te ther belt 3. Securing
thec hild restra int sy stem wit hthe
seat belt Secu
ring thec hild restra int sy stem wit hthe
seat belt on ther ear seat
Whe ninstalling abelt-secured child restra int sys‐
te m, obser vethef ollowing:
0073 Alw
aysc ompl ywitht he manufacturer's
ins tallation and operatin ginstructions fort he
ch ild restra int sy stem used.
0073 When using
acategor y0/0+ bab ycar
seat and acategor yIrearward-facing
ch ild restra int sy stem on arear sea t:
adju stthef ront seat so that thes eat does
no ttouc hthe child restra int sy stem.
0073 When using
acategor yIforwa rd-facing
ch ild restra int sy stem: remo vetheh ead
re stra int from ther espectiv eseat, if possi‐
ble.
Af tert he child restra int sy stem has been
re mo ved, replace theh ead restra int simme‐
diatel yand adjus tthem cor rectly. 42
Occupant saf ety
Page 45 of 348

0073
The backres
toftheforw ards- facing child
re stra int sy stem must, as farasp ossible,
re st on theb ackres toftherear seat.
0073 Fo
rc ertain child restra int sy stems of weight
categor yIIorIIIth er em aybe limitations for
th em aximum size setting, e.g. due topossi‐
ble con tact wi th theroof.
0073 The
child restra int sy stem mus tnotbe ten‐
sioned between ther oof and thes eat cush‐
ion and/or be ins talled facing thew rong
direction .Wher epossible, adjus tthe seat
cushion inclination accordingly.
0073 The
child restra int sy stem mus tnotbe put
under stra in by theh ead restra int .A dju stthe
head restra int sasa ppropriate.
0073 Mak
esuret hat thec hild's feet do no ttouch
th ef ront seat. If necessar y,mo vethef ront
seat slightl yforwa rds.
The seat belt sonthefollowing seats ar eequip‐
ped wit haspecial seatbelt retractor:
R Co-driver seat
R Rear seats
When enabled, thes pecial seatbelt retractor
ensures that thes eat belts on thec o-driver seat
and ther ear seats do no tslac keno nce thec hild
re stra int sy stem is secured. (/ page40). #
Installth ec hild restra int sy stem.
The base of thec hild restra int sy stem must
lie fully on thes eat cushion of ther ear seat. #
Alwaysm akes uret hat thes houlder belt strap
is cor rectl yr outed from thes eat belt outle tof
th ev ehicle tothes houlder belt guide on the
ch ild restra int sy stem.
The shoulder belt stra pm ustber outed for‐
wa rdsa nd down wardsf romt he seat belt out‐
let.
Note sonr earward-facin gchild restra int sys‐
te ms
The co-d rive rfront airbag canno tbedisabled.
Alw aysi ns tallar ear ward-facing child restra int
sy stem on asuitable rear seat ,but ne veront he
co-d rive rs eat. Obser vethem anufacturer's ins tal‐
lation and operatin ginstructions fort he child
re stra int sy stem used.
Note sonac hildrestra int sy stem on thec o-
driver seat
Ac cident statistic sshowt hat children secured on
th er ear seats ar esafer than children secured on
th ef ront seats. Forthis reason ,Mercedes-Benz stro
ngly advises that youi nstallac hild restra int
sy stem on arear seat.
Securing thec hild restra int sy stem wit hthe
seat belt on thec o-d rive rs eat
Whe ninstalling abelt-secured child restra int sys‐
te mont he co-driver seat, alw ayso bser vethef ol‐
lowing:
0073 Obser
vethem anufacturer's ins tallation and
operatin ginstructions fort he child restra int
sy stem used.
0073 The backres
tofaforwa rd-facin gchild
re stra int sy stem must, as farasp ossible, lie
fl at agains tthe backres tofthe co-driver
seat.
0073 Fo
rc ertain child restra int sy stems of weight
categor yIIorIIIth er em aybe limitations for
th em aximum size setting, e.g. due topossi‐
ble con tact wi th theroof.
0073 The
child restra int sy stem mus tnotbe ten‐
sioned between ther oof and thes eat cush‐
ion and/or be ins talled facing thew rong
direction.
0073 The
child restra int sy stem mus tnotbe put
under stra in by theh ead restra int .A dju stthe
head restra int sasa ppropriate.
0073 Ne
verp lace objects under or behind the
ch ild restra int sy stem, e.g. cushions.
The seat belt on thec o-driver side is equipped
wit has pecial seatbelt retractor.
Whe nenabled ,the special seatbelt retractor
ensures that thes eat belt does no tslac keno nce
th ec hild restra int sy stem is secured
(/ page40). #
Setthe co-driver seat as farb ackasp ossible
and mo vethes eat int othe highes tposition
possible. #
Fullyr etra ct thes eat cushion dep thadjust‐
ment. #
Setthe seat cushion angle in suc hawaythat
th ef ront edg eofthe seat cushion is in the
highes tposition and ther ear edg eofthe seat
cushion is in thel owest position. #
Setthe seat backres ttothe mos tvertical
position possible. #
Installth ec hild restra int sy stem.
The base of thec hild restra int sy stem must
lie fully on thec o-driver seat cushion. #
Alwaysm akes uret hat thes houlder belt strap
is cor rectl yr outed from thes eat belt outle tof Occupant saf
ety43
Page 46 of 348

th
ev ehicle tothes houlder belt guide on the
ch ild restra int sy stem.
The shoulder belt stra pm ustber outed for‐
wa rdsa nd down wardsf romt he seat belt out‐
let. #
If necessar y,adjus tthe seat belt outle tand
th ec o-driver seat as appropriate. Child saf
etyl oc ks Ac
tivating/deactivatin gchild saf etyl oc ks for
th ed oors &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If ch ildren ar eleftu nat tende dint hevehicle,
th ey could:
R Ope ndoors,t hereb yendangering other
persons or road users.
R Getout and be stru ck byoncomin gtraf‐
fi c.
R Ope rate ve hicle equipment and become
trapped, fore xamp le.
In addition ,the children could also se tthe
ve hicle in motion, fore xamp leby:
R Releasing thep arking brake.
R Changing thet ransmission position.
R Startin gthe vehicle. #
Neverlea ve children unat tende dint he
ve hicle. #
When leaving thev ehicle, alw ayst ake
th ek eywit hyou and loc kthe vehicle. #
Keep thev ehicle keyo ut of reac hof
ch ildren. &
WARNING Risk offata linjur ydue to
ex posur etoextreme hea torcoldint he
ve hicle
If people –particular lych ildren –areexposed
to extreme temp eratures overane xtended
perio doft ime,ther eisar isk of serious or
eve nfatal injur y. #
Neverlea ve anyone –p articularly chil‐
dren –unat tende dint hevehicle. #
Neverlea ve animals in thev ehicle unat‐
te nded. &
WARNING Risk of accident and injury
du etoc hildren lef tunat tende dint he
ve hicle
If ch ildren ar etrave ling in thev ehicle, they
could, in pa rticular:
R Open doors, thereb yendangering other
persons or road users
R Getout and be stru ck byoncomin gtraffic
R Operat evehicle equipment and become
trapped, fore xamp le #
Alwaysa ctivat ethe child saf etyl oc ks
ins talled if children ar etrave ling in the
ve hicle. #
Neverlea ve children unat tende dint he
ve hicle. #
When leaving thev ehicle, alw ayst ake
th eS martK eywit hyou and loc kthe
ve hicle. The
following door shave child saf etyl oc ks:
R Sliding doo rs
The child saf etyl oc ks on thed oor ssecur eeach
door separatel y.The door scan no longer be
opened from thei nside (e xception: electric slid‐
ing door). When thev ehicle is unloc ked, thed oor
can be opened from theo utside.
If th ee lectric sliding door is secured, onl ythe
sliding door controls in ther ear compartment are
deactivated. The electric sliding door can be
opened at an ytimeu singthe switc hinthe center
console Example: sliding door
child saf etyl ock #
Slide child saf etyl oc kb olt 1 toposition 0048
(activate) or 0049(deactivate). 44
Occupant saf ety
Page 47 of 348
#
Mak esuret hat thec hild saf etyl oc ks are
wo rking properly. Note
sonp etsint hevehicle &
WARNING Risk of accident and inju ry
due toanimals lef tunsecured or unat ten‐
de dint hevehicle
If yo ul eave animals in thev ehicle unattended
or unsecured, they could possib lypress down
buttons or switches.
Thereb yananimal may:
R activat evehicle equipment and become
trapped, fore xamp le
R swit chsystems on or of fand endanger
ot her road users
Un secured animals ma ybethrow na roun din
th ev ehicle in thee vent of an accident or sud‐
de ns teering and braking maneuver and injure
ve hicle occupants in thep rocess. #
Neverlea ve animals in thev ehicle unat‐
te nded. #
Alwaysc orrectly secu reanimals while
driving, fore xamp le usin gasuitable ani‐
mal car rier. Occupant saf
ety45
Page 48 of 348

SmartK
ey Note
sonr adio connection softhekey &
DANG ER Risk of fata linjur ytop ersons
wit hm edical devices from thee lectro‐
magnetic radiation of thes tart/s topb ut‐
ton
Pe rsons wit hmedical devices, e.g. pacemak‐
er sord efibrillators:
When youo perat ethe start/ stop button, a
ra dio connection is es tablished between the
ke ya nd thev ehicle.
The electromagnetic radiation can af fect the
functionality of amedical device. #
Befor eoperating thev ehicle, consult
yo ur doc torort he manufacturer of the
medica ldevice abou tany possible
ef fects of emissions from suc hsystems. De
tection rang eofa ntenna of KEYLESS-
ST AR Tfunction Overvie
wofkeyfunctions &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If ch ildren ar eleftu nat tende dint hevehicle,
th ey could:
R Ope ndoors,t hereb yendangering other
persons or road users.
R Getout and be stru ck byoncomin gtraf‐
fi c.
R Ope rate ve hicle equipment and become
trapped, fore xamp le. In addition
,the children could also se tthe
ve hicle in motion, fore xamp leby:
R Releasing thep arking brake.
R Changing thet ransmission position.
R Startin gthe vehicle. #
Neverlea ve children unat tende dint he
ve hicle. #
When leaving thev ehicle, alw ayst ake
th ek eywit hyou and loc kthe vehicle. #
Keep thev ehicle keyo ut of reac hof
ch ildren. *
NO
TEDama getothek eycaused bymag‐
netic fields #
Keep thek eyaway from strong mag‐
netic fields. 1
Tolock
2 Battery checkl amp
3 Tounlo ck
4 Tounlo ckcargo compa rtment (sliding doors
and rear-en ddoors)/ tounlo ckand open/
close electric slidin gdoors
5 Emer gency key
The key's factor ysetting enables youtoc entrally
loc ka nd unloc kthe following components:
R thed rive r's door and thec o-driver's door
R thes liding doors
R ther ear-end doors
% If
yo udon otopen thev ehicle within appr ox‐
imatel y40s econds of unlocking, thev ehicle
will loc kagain and anti-thef tprotection will
be armed again. 46
Opening and closing