2021 MERCEDES-BENZ C CLASS ECU

#
Ifth ech ild and thech ild restra int sys‐
te m toget her weigh mor eth an theper‐
missible gross mass of73 lb(33 kg),
onl yuse aLA TC H-type (ISOFIX )ch ild
re stra int system withwhic hth ech ild is
secur edwithth eve hicle seatbelt. #
Also secur eth ech ild restra int system
wit hth eTo pTe ther belt, ifav ailable. Alw
ayscom plywit hth einf ormation aboutthe
mass ofthech ild restra int system:
R inthemanuf acturer'sinstallation andoper at‐
ing instruct ions forth ech ild restra int system
used
R onalabel onthech ild restra int system, if
pr esent
Re gular lych eckth at theper missible gross mass
of thech ild and child restra int system isstill
com plied with. When
installing ach ild restra int system, obser ve
th efo llo wing:
0073 Alw
aysobser vethecor rect useof theseats
and consider their suit ability foratt aching a
ch ild restra int system.
0073 Alw
ayscom plywithth emanuf acturer's
ins tallation andoper atingins truct ions for
th ech ild restra int system used.
0073 Mak
esur eth at thech ild's feet do notto uc h
th efront seat. Ifneces sary,mo vethefront
seat slightl yfo rw ards.
® When installing aLA TC H-type (ISOFIX )
ch ild restra int system, also obser vethefo llo w‐
ing:
0073 When
usingabab ycar seat inwe ight
gr oup 0/0+ andare ar wa rd-faci ng child
re stra int system inwe ight group Ion a
re ar seat :adju stthefront seat sothat the
seat does notto uc hth ech ild restra int sys‐
te m.
0073 When
usingafo rw ard-f acin gch ild
re stra int system inwe ight group I:
re mo vethehead restra int from there spec‐ tiv
eseat, ifpossible .In addition, thebac k‐
re st of thech ild restra int system mus tlie as
fl at as poss ibleagains tth ebac kres tof the
ve hicle seat.
Af terth ech ild restra int system has been
re mo ved, replace thehead restra int sag ain
immed iatelyand adjus tth em correctl y.
0073 If
th ehead restra int ofthech ild seat cannot
be fullyex tende dwh en itis ins talled inthe
ve hicle, this will result inrestrictions onthe
maximu msize setting forch ild restra int sys‐
te ms inwe ight categor yII or III.
Cont actwithth ero of when thehead
re stra int isfull yex tende dand lock ed in
place willnotre sult inanyre strictions on
us e.
0073 The
child restra int system mus tno tbe put
under stra in be tween thero of and theseat
cushion and/orbeinstalled facing the
wr ong direct ion. Wher epossi ble,adjus tth e
seat cushion inclination accordingly.
0073 The
child restra int system mus tno tbe put
under stra in by thehead restra int .Ad jus t
th ehead restra int sas appr opriate. 56
Occupant safety

1
LATC H-type (ISOFIX )mou nting brac ket
Bef oreev eryjour ney,mak esur eth at theLA TC H-
type (ISOFIX )ch ild restra int system iseng aged
cor rectl yin bo th mounting brac kets intheve hi‐
cle. *
NO
TEDama getotheseat beltforth e
cent ersea tdu ring installation ofthe
ch ild restra int system #
Mak esur eth at theseat beltisno ttra p‐
ped. #
Attach theLA TC H-type (ISOFIX )ch ild
re stra int system toboth mounting brac kets
in theve hicle. Secur
ingTopTe ther &
WARNIN GRisk ofinju ryor deat hif th e
re ar seat backres ts areno tloc kedaf te r
To pTe ther belts areins talled
The rear seat backres ts ma yfo ld forw ards
when youar edr ivin g.
As are sult, child restra int systems willno
long erbe able toper form their intended pro‐
te ctiv efuncti on.Thisma yal so cau seaddi‐
tiona linju ries. #
Alw aysloc kre ar seat backres ts afte r
ins talling TopTe ther belts. #
Obser vetheloc kve rificati onindi cator. If
th elef tand right seat backres ts areno t
eng aged and lockedin place, this will besho wn
on themultifunc tiondispla yon theins trument
clus ter.
If th ecent erseat backres tis no teng aged and
loc kedin place, there dloc kve rificati onindi ca‐
to rwil lbe visib le.
¯ Ifth ech ild restra int system iseq uipped
wit haTo pTe ther belt :
The risk ofinjur yma ybe reduced byTop
Te ther.The TopTe ther belt enables an
additional connect ionbetween thech ild
re stra int system attached withLA TC H-
type (ISOFIX )and theve hicle. Occupant
safety 57

#
Ifnecessar y,slide head restra int 1 upw ards
(/ page95). #
Foldup cover2 ofTopTe ther anc horage
3. #
Installth eLA TC H-type (ISOFIX )ch ild restra int
sy stem withTo pTe ther.In doing so,com ply
wit hth ech ild restra int system manuf actur‐
er's installation instruct ions . #
Guide TopTe ther belt 4under head
re stra int 1 between thetw ohead restra int
bar s. #
Hook TopTe ther hook 5ofTopTe ther belt
4 intoTo pTe ther anc horage3 without
twis ting. #
Tensi on TopTe ther belt 4.Indoing so,com‐
pl ywit hth ech ild restra int system manuf ac‐
tur er's installation instruct ions . #
Folddo wn cover2 ofTopTe ther anc horage
3. #
Ifneces sary,slide head restra int 1 down‐
wa rds(/ page95). Makesur eth at youdo no
tint erfere wit hth ecor rect routin gof Top
Te ther belt 4. Secur
ingthech ild restra int system withth e
seat belt Secur
ingthech ild restra int system withth e
seat beltonthere ar seat &
WARNIN GRisk ofacci dent ifth ere ar
ben chseat, rear seat andseat backres t
ar eno teng aged
The rear ben chseat, rear seat andseat back‐
re st ma yfo ld forw ards, evenwh en youar e
dr ivin g.
R Asare sult, theve hicle occupant willbe
pushed intoth eseat beltwithincr eased
fo rc e. The seat beltwillnotbe able to
pr otect asintended andcould cause
additional injury.
R Objects orloads inthetrunk orcar go
com partmen twill notbe restra ined by
th eseat backres t. 58
Occupant safety

#
Mak esur eth at there ar ben chseat, the
re ar seat andtheseat backres tar e
eng aged bef oreeve rytrip . If
th elef tand right seat backres ts areno t
eng aged and lockedin place, this will besho wn
on themultifunc tiondispla yon theins trument
clus ter.
If th ecent erseat backres tis no teng aged and
loc kedin place, there dloc kve rificati onindi ca‐
to rwil lbe visib le.
When install ing abel t-secur edchild
re stra int system, obser vethefo llo wing:
0073 Alw
ayscom plywit hth emanuf acturer's
ins tallation andoper atingins truct ions for
th ech ild restra int system used.
0073 When
usingawe ight categor y0/0+
bab ycar seat andawe ight categor yI
re ar wa rd-faci ng child restra int system
on are ar seat :adju stthefront seat sothat
th eseat does notto uc hth ech ild restra int
sy stem.
0073 When
usingawe ight categor yIfo rw ard-
fa cing child restra int system: remo vethe head
restra int from there spectiv eseat, if
possible .
Af terth ech ild restra int system has been
re mo ved, replace thehead restra int sag ain
immed iatelyand adjus tth em correctly .
0073 The
backrest of thefo rw ard-f acin gch ild
re stra int system mus t,as faras possi ble,be
re sting ontheseat backres tof there ar
seat .
0073 If
th ehead restra int ofthech ild seat cannot
be fullyex tende dwh en itis ins talled inthe
ve hicle, this will result inrestrictions onthe
maximu msize setting forch ild restra int sys‐
te ms inwe ight categor yII or III.
Cont actwithth ero of when thehead
re stra int isfull yex tende dand lock ed in
place willnotre sult inanyre strictions on
us e.
0073 The
child restra int system mus tno tbe put
under stra in be tween thero of and theseat
cushion and/orbeinstalled facing the
wr ong direct ion. Wher eposs ible, adjus tth e
seat cushion inclination accordingly. 0073
The
child restra int system mus tno tbe put
under stra in by thehead restra int .Ad jus t
th ehead restra int sas appr opriate.
0073 Mak
esur eth at thech ild's feet do notto uc h
th efront seat. Ifneces sary,mo vethefront
seat slightl yfo rw ards.
The seat beltson thefo llo wing seats areeq uip‐
ped withaspec ialseat beltretract or:
R Front passeng erseat
R Rear seat s
When enabled,thespecial seatbeltretract or
ens ures that theseat belts ofthefront
passeng erseat andrear seat sdo notslac ken
once thech ild restra int system issecur ed
(/ page54 ). #
Installth ech ild restra int system.
The entire base ofthech ild restra int system
mus talw aysre st on thesitt ing surface ofthe
re ar seat . #
Alw aysmak esur eth at theshoulder belt
st ra pis cor rectly routed from theseat belt Occ
upant safety 59

outle
tof theve hicle totheshoulder belt
guide onthech ild restra int system.
The shoulder beltstra pmus tbe routed for‐
wa rdsand down wardsfrom theseat beltout‐
le t.
No teson rear wa rd-faci ng and forw ard-f acin g
ch ild restra int systems onthefront
pa sseng erseat &
WARNIN GRisk ofinju ryor deat hwhen
using are ar wa rd-faci ng child restra int
sy stem while thefront passeng erairbag
is enabled
If yo usec ureach ild inare ar wa rd-faci ng
ch ild restra int system onthefront passeng er
seat andthePA SSENGER AIRBAGOF Find i‐
cat orlam pis off,th efront passeng erairbag
can deplo yin theev ent ofan acciden t.
The child could bestru ck bytheairbag.
Alw aysensur eth at thefront passeng erair‐
bag isdisabled. ThePASSENGER AIRBAG
OFF indicat orlam pmus tbe lit. NEVER
useare ar wa rd-faci ng child restra int
sy stem onaseat withan ENABL EDFRONT
AIRB AG.Thi scan result intheDE ATHof or
SERIOU SINJU RYtotheCH ILD. Obser
vethespecif icins truction sfo rth ere ar‐
wa rd-faci ng and forw ard-f acin gch ild restra int
sy stems (/page60).
Alw aysobser vethest atus ofthefront passeng er
airbag onthePA SSENGER AIRBAGOF Find ica‐
to rlam p:
R When using are ar wa rd-faci ng child restra int
sy stem onthefront passeng erseat, thefront
passeng erairbag mustalw aysbe disabl ed.
This isonl yth ecase ifth ePA SSENGER AIR
BA GOF Find icat orlam pis lit con tinuousl y
(/ page46) .
R Ifth ePA SSENGER AIRBAGOF Find icat or
lam pis off,th efront passeng erairbag isena‐
bled. Thefront passeng erairbag maydeplo y
dur ing anacciden t. Secur
ingthech ild restra int system withth e
seat beltonthefront passeng erseat
When installing abelt- secur edchild restra int
sy stem onthefront passeng erseat, always
obser vethefo llo wing:
0073 Obser
vetheno teson rear wa rd-faci ng and
fo rw ard-f acin gch ild restra int systems on
th efront passeng erseat (/page60).
0073 Obser
vethech ild restra int system manuf ac‐
tur er's installation andoper atingins truc‐
tion s.
0073 When
usingafo rw ard-f acin gch ild restra int
sy stem inwe ight categor yI: re mo vethe
head restra int from there spectiv eseat, if
possible .
Af terth ech ild restra int system has been
re mo ved, replace thehead restra int sag ain
immed iatelyand adjus tth em correctl y.
0073 The
backres tof thefo rw ard-f acin gch ild
re stra int system mus t,as faras possi ble,be
re sting ontheseat backres tof thefront
passeng erseat.
0073 If
th ehead restra int ofthech ild seat cannot
be fullyex tende dwh en itis ins talled inthe 60
Occupant safety

ve
hicle, this will result inrestrictions onthe
maximu msize setting forch ild restra int sys‐
te ms inwe ight categor yII or III.
Cont actwithth ero of when thehead
re stra int isfull yex tende dand lock ed in
place willnotre sult inanyre strictions on
us e.
0073 The
child restra int system mus tno tbe put
under stra in be tween thero of and theseat
cushion and/orbeinstalled facing the
wr ong direct ion.
0073 The
child restra int system mus tno tbe put
under stra in by thehead restra int .Ad jus t
th ehead restra int sas appr opriate.
0073 Ne
verpla ceobjects (e.g.cushi ons)under or
behi ndthech ild restra int system.
The seat beltonthefront passeng erside is
eq uipped withaspecial seatbeltretract or.
Wh enena bled ,th especial seatbeltretract or
ens ures that theseat beltdoes notslac kenonce
th ech ild seat issecur ed(/ page54 ). #
Setth efront passeng erseat asfarbac kas
possi bleand movetheseat intoth ehighes t
position ifpossible. #
Fully re tract theseat cushion lengthadjus t‐
ment . #
Adjus tth eseat cushion inclination sothat
th efront edgeof theseat cushion isin the
highes tposition andthebac kedg eof the
seat cushion isin thelowe stposition . #
Setth eseat backres tto themos tve rtical
posit ionpossible . #
Installth ech ild restra int system.
The entire base ofthech ild restra int system
mus talw aysre st on thesitt ing surface ofthe
fr ont passeng ersea t. #
Alw aysmak esur eth at theshoulder belt
st ra pis cor rectly routed from theseat belt
outle tof theve hicle totheshoulder belt
guide onthech ild restra int system.
The shoulder beltstra pmus tbe routed for‐
wa rdsand down wardsfrom theseat beltout‐
le t. #
Ifneces sary,adjus tth eseat beltoutle tand
th efront passeng erseat accor dingly. Child
safetyloc ks Ac
tiv atin gor deac tivatin gthe child safety
loc kfo rthe rear door s &
WARNIN GRisk ofacci dent andinjury
due tochildr enleftunat tende din the
ve hicle
If ch ildr enarelef tunsuper visedintheve hi‐
cle, they cou ld,in pa rticular :
R open doors,ther eb yendang ering other
per sons orroad user s.
R getou tand bestru ck byoncom ingtraf‐
fi c.
R ope rate vehicle equipment andbecome
tr apped, forex am ple.
In addit ion,th ech ildr encould alsosetth e
ve hicle inmo tion, forex am ple by:
R releasing thepar king brak e.
R chang ingthetra nsmiss ionposition .
R star tin gth eve hicle. Occupant
safety 61

Ac
tiv atin gor deac tivatin gthe child safety
loc kfo rthe rear side windo ws #
Toactiv ate/ deacti vate:pr ess button 2.
The rear side windowcan beope ned or
clos edinthefo llo wing cases :
R Indicat orlam p1 islit:via theswitc hon
th edr iver's door R
Indic ator lam p1 isoff:via theswitc hon
th ecor responding rear door ordriver' s
door No
teson pets intheve hicl e &
WARNIN GRisk ofacci dent andinjury
due toanim alsleftuns ecur edorunat ‐
te nde din theve hicle
If yo ulea veanim alsintheve hicle unatten‐
ded orunsecur ed,they cou ldpos siblypress
butt ons orswitc hes.
An animal may:
R Activateve hicle equipment andbecome
tr apped, forex am ple
R Swit chsystems onoroffand endang er
ot her road user s
Un secur edanimals maybe throw nar ou nd in
th eve hicle intheeve ntofan acci dent or
su dd en steer ing and braking maneuv ersand
injur eve hicle occupants inthepr ocess. #
Neverlea veanim alsintheve hicle unat‐
te nde d. #
Alw ayscor rectly secu reanim alswhile
dr ivin g,e.g .usin gasuit able anim alcar ‐
ri er . Occ
upant safety 63

#
Ifth etrunk lidisstopped inan intermediat e
position, pullitupw ards. Release itas soon
as itbegin sto open.
Wi th thetrunk lidopening heightrestriction
acti vated, manuall ypull thestopped trunk lid
upw ards.
If an obs tacle obs tructs thetrunk liddur ing the
aut omat icopen ingproce ss,bloc kage detection
wi llst op thetrunk lid.The automatic blockage
de tection functi onisonly anaid and isno ta
su bs titu teforyo ur att entiven ess . Closing
thetrunk lid &
WARNIN GRisk ofinju ryfrom unsecu red
it ems intheve hicle
If object s,lugg ageor loads areno tsecur ed
or notsecur edsuf ficie ntly,they cou ldslip,
tip ove ror be throw nar ou nd and ther eb yhit
ve hicle occupants.
Ther eis arisk ofinjur y,par ticular lyin the
ev ent ofsudden braking orasudden chang e
in dir ect ion. #
Alw aysst ow object sin suc hawa yth at
th ey canno tbe thro wn around . #
Beforeth ejour ney,secur eobjects, lug‐
ga ge orloads agains tslipping ortipping
ove r. Obser
vetheno teson loadi ngtheve hicle. #
Pull thetrunk liddown wardsusing thehan‐
dle recess andpush itclos ed.
Ve hicl eswith trunk lidconvenience closing &
WARNIN GRisk ofbeco ming trap ped
du ring automatic closing ofthetrunk lid
Pa rts of thebody could become trapped.
Ther ema ybe people intheclosing area. #
Mak esur eth at nobody isin thevicinit y
of theclosing area dur ing theclosing
pr ocess. #
Use oneofthefo llo wing option sto stop
th eclosing process:
R Press the008B buttononthe
Smar tKey . R
Press orpull there mo teoper ating
switc hon thedr iver's door .
R Press theclosing orloc king button
on thetrunk lid.
R Pull thetrunk lidhandle. #
Vehicl eswith HANDS -FREEACCESS: itis
also possibletostop theclosing process by
making akic king movement belowthere ar
bum per. #
Pull thetrunk lidhandle. Release itas soon
as itbegin sto clos e. #
Ifth etrunk lidisstopped inan intermediat e
position, pushitdo wn wards.
The trunk lidwill cont inue toclos e. 72
Opening andclosing