ECU MERCEDES-BENZ E-CLASS CABRIOLET 2021 User Guide

shut
offch eckedand repair edimmediat elyat a
qu alif ied spec ialistwo rkshop.
St atus displa y
If th efront passeng erseat isoccupied, ensure,
bo th bef oreand during thejour ney,that thest a‐
tus ofthefront passeng erairbag iscor rect for
th ecur rent situa tion.
Af terin st alli ng are ar wa rd-faci ng child
re stra int system onthefront passeng er
seat :PA SSENGER AIRBAGOF Fmus tbe litcon ‐
tin uousl y. &
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;DE ATHor SERIOU SINJU RYtothe
CH ILD can occur . When
installing ach ild restra int system onthe
fr ont passeng ersea t,obse rveth eve hicle-spe‐
cif icinf ormation (/page61 ).
De pend ing on thech ild restra int system and the
st atur eof thech ild, thePA SSENGER AIRBAG
OFF indicat orlam pma ybe off.In this case, do
no tins tallth ere ar wa rd-faci ng child restra int
sy stem onthefront passeng erseat.
Ins tead, installth ere ar wa rd-faci ng child
re stra int system onasuit able rear seat .
Af terin st alli ng afo rw ard-f acin gch ild
re stra int system onthefront passeng er
seat :depen dingonthech ild restra int system
and thest atur eof thech ild, PASSENGER AIR
BA GOF Fma ybe litcon tinuousl yor be off.
Alw aysobser vethefo llo wing informatio n. &
WARNIN GRisk ofinju ryor deat hdue to
inc orrect pos itioning ofthefo rw ard-
fa cing child restra int system
If yo usec ureach ild inafo rw ard-f acin gch ild
re stra int system onthefront passeng erseat
th at isposit ioned tooclose tothecoc kpit, in
th eev ent ofan acciden t,th ech ild could:
R com eint ocon tact with par tsof theve hi‐
cle's interior ifth ePA SSENGER AIRBAG
OFF indicat orlam pis lit, forex am ple
R bestru ck bytheairbag ifth ePA SSENGER
AIR BAGOF Find icat orlam pis off #
Alw aysmo vethefront passeng erseat
as farbac kas possi bleand fully retract
th eseat cushion lengthadjus tment.
While doing so,alwaysmak esur eth at
th eshoulder beltstra pis cor rectl y
ro uted from theseat beltoutle tof the
ve hicle totheshoulder beltguide on
th ech ild restra int system. Theshoulder
belt stra pmus tbe routed forw ards and
do wn wardsfrom theseat beltoutle t.If 48
Occupant safety

Ro
llbar &
DANG ER Risk ofinjuryor deat hdue toa
malfu nction ofthero llbar s
The rollbar scan notpr otect vehicle occu‐
pants asintended. #
Have thero llbar sch eckedimmediat ely
at aqu alif ied spec ialistwo rkshop. &
WARNIN GRisk ofinju rywhen thero ll
bar sar etrigg ered
Ther eis arisk ofinjur y.
Alw aysmak esur eth at ther eis no thing inthe
sw eep behind there ar head restra int s. &
WARNIN GDang erofinju ryor deat hdue
to obs truct edrollbar s
If yo ulea veobject sor items ofclo thing on
th eco vers of thero llbar s,thero llbar scan ‐
no tpr otect asintended.
Fu rther mor e,theobjec tsma yendang ervehi‐
cle occupants whenthero llbar sex tend. #
Alw aysmak esur eth at theth er eis
no thing inthesw eep ofthero llbar s. #
Alw aysst ow and secureobj ect sin the
ve hicle correctl y. The
rollbar sar eunder theco vers behind the
re ar head restra int s.The rollbar sar etrigg ered
when dangeroftheve hicle rolling overis de tec‐
te d.
Onc eth ero llbar sha ve been trigg ered, youcan
no longerclose asof tto pth at isopen .In this
case, consult thene xt qualif ied spec ialistwo rk‐
shop. 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 tpr e-em ptive meas‐
ur es toprotect theve hicle occupants.
PRE-S AFE®
can implement thefo llo wing meas‐
ur es indepe ndently of eac hot her :
R Tight ening theseat belts onthedr iver's seat
and front passeng erseat.
R Closing theside windo ws.
R Vehicl eswith memor yfuncti on:Movethe
fr ont passeng ersea tto amor efa vo rable
seat position .
R Vehicl eswith multico ntour seat :Incr ease
th eair pressur ein theseat sidebolsters of
th eseat backres t.
R PRE-S AFE®
Sound: prov ided that themulti‐
media system isswitc hedon,gener ates a
br iefnoi sesigna lto stimulat eth einnat epr o‐
te ctiv emec hanism ofaper son's hearing. 50
Occupant safety

*
NO
TEDama gecau sed byobject sin the
fo ot we llor behin dth eseat The
automatic adjustmentof theseat posi‐
tion mayre sult indamag eto theseat and/or
th eobjec t. #
Stow object sin asuit able place. Re
versing thePRE- SAFE®
sy stem mea sures If
an acc iden tdid notocc ur,th epr e-em ptive
measur esthat we retak en arere ve rsed.
Yo uwill need toper form certainse ttings your‐
self . #
Ifth eseat beltpre-t ension ingisno tre duced,
mo vetheseat backres tbac kslightl 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 ptive measur estoprotect theve hicle occupants.
Thesemeasur escanno tnecessar ily
pr eve ntan imm inentimpact.
PR E-S AFE ®
PL US can implem entthefo llo wing
measur esindepe ndently of eac hot her :
R Tight ening theseat belts onthedr iver's seat
and front passeng erseat.
R Increasin gbr ak epr essur ewhen theve hicle
is statio nary.This brak eapplication iscan‐
celed automaticall ywhen theve hicle pulls
aw ay.
If an accident didnotoccur ,th epr e-em ptive
measur esthat we retake nar ere ve rsed.
Sy stem limit s
The system will notinitiat ean yaction inthefo l‐
lo wing situat ions:
R When backingup
The system will notinitiat ean ybr aking applica‐
tion inthefo llo wing situat ions:
R Whils tdr ivin g
or R
When entering orexitin gapar kingspace
while using ActivePa rking Assist Saf
elytransp orting childr enintheve hicl e Alw
aysobser vewhen childr enaretrav eling
in theve hicl e %
Also strictly observe thesaf etyno tesfo rth e
specif icsituation. Inthis wa yyo ucan recog‐
nize potentia lri sk sand avoiddang ersif ch il‐
dr en aretrav eling intheve hicle
(/ page52).
Be dilig ent
Bear inmind that neg ligenc ewhen securing a
ch ild inthech ild restra int system mayha ve ser i‐
ous conseq uences. Alwaysbe dilig entinsecur‐
ing ach ild car efull ybef oreeve ryjou rney .
To improve protect ion forch ildr enyoung erthan
12 yearsold orunde r5 ft (1.50 m)inheight ,
Mer cedes- Benzre comme ndsyouobse rveth e
fo llo wing informatio n:
R Alw ayssecur eth ech ild inach ild restra int
sy stem suitable forth is Mer cedes -Benz vehi‐
cle. Occupant
safety 51

R
The child restra int system mus tbe appr opri‐
at eto theag e, we ight andsize ofthech ild.
R The vehicle seatmustbe suit able forins tal‐
ling ach ild restra int system.
Ac cid ent statis ticssho wthat childr ensecur ed
on there ar seat sar ege ner ally saf erthan chil‐
dr en secur edon thefront seats. Forth is reason ,
Mer cedes-Ben zst ro ng lyadvis esthat youins tall
a ch ild restra int system onare ar seat .
Th ege ner icterm child restra int system
The gener icterm child restra int system isused
in this Opera tor's Manua l.A ch ild restra int sys‐
te m is, forex am ple:
R Abab ycar seat
R Arear wa rd-faci ng child seat
R Aforw ard-f acin gch ild seat
R Ach ild boos terseat withabac kres tand seat
belt guide
Mer cedes-Benz recomme ndsusing ach ild
boos terseat withabac kres t.
The child restra int system mus tbe appr opriate
to theag e, we ight andsize ofthech ild. Obser
velaws and legalrequ irement s
Alw aysobser vetheleg alrequ iremen tswhen
using ach ild restra int system intheve hicle.
Obser vestandar dsforch ild restra int sys‐
te ms
All child restra int systems mustmee tth efo llo w‐
ing standar ds:
R U.S. Feder alMo torVe hicle SafetySt andar ds
21 3and 225
R Canadi anMo torVe hicle SafetySt andar ds
21 3and 210.2
Conf irmatio nth at thech ild restra int system
com plies withth est andar dscan befound onan
ins truct ion label onthech ild restra int system.
This confirm atio ncan also befound intheins tal‐
lation instruct ions that areinc luded withth e
ch ild restra int system. De
tectin grisk s,avo iding danger Secur
ingsystems forch ild restra int systems
in theve hicl e
Only usethefo llo wing secur ingsystems forch ild
re stra int systems:
R The LATC H-type (ISOFIX )secu ring rings
R The vehicle's seatbeltsystem
R The TopTe ther anc horages
Ins talling aLA TC H-type (ISOFIX )ch ild restra int
sy stem isfavo red.
Sim plyatta ching tothesecur ingrings onthe
ve hicle canreduce therisk ofins talling thech ild
re stra int system incor rectly .
Whe nsecu ring ach ild withth eint egr ated seat
belt oftheLA TC H-type (ISOFIX )ch ild restra int
sy stem, alwayscom plywithth eper missible
gr oss weight forth ech ild and child restra int sys‐
te m (/ page56).
A boos terseat maybe necessar yto achie ve
pr oper seatbeltposition ingforch ildr enove r
40 lbs (18 kg )in we ight orunt ilth ey reac ha 52
Occupan tsaf ety

height
whereath re e-point seatbeltcanbe
ins talled proper lywit hout aboos terseat.
Mer cedes-Benz recomme ndsasu itab lech ild
boos terseat withabac kres tand seat beltguide.
Ad vantag eof are ar wa rd-faci ng child
re stra int system
It is prefer able totrans portabab yor asmall
ch ild inasuit able rear wa rd-faci ng child restra int
sy stem. Inthis case, thech ild sits intheoppo‐
sit edir ect ion tothedir ect ion oftra veland faces
ba ckwa rds.
Babies andsmall childr enhave com parativ ely
we ak nec kmusc lesinrelation tothesize and
we ight oftheir head. Therisk ofinjur yto thecer‐
vical spine during anacciden tcan bereduced in
a re ar wa rd-faci ng child restra int system. Alw
ayssecur each ild restra int system cor‐
re ctl y &
WARNIN GRisk ofinju ryor deat hdue to
inc orrect ins tallation ofthech ild
re stra int system
The child can then notbe protect edor
re stra ined asintended . #
Besureto com plywith themanuf actur‐
er's installation instruct ions forth e
ch ild restra int system and itscor rect
us e. #
Makesur eth at theent ire base ofthe
ch ild restra int system alwaysre stson
th esitt ing surface oftheseat. #
Neverpla ceobjects (e.g.cushi ons)
under orbehi ndthech ild restra int sys‐
te m. #
Use child restra int systems onlywit h
th eor iginal coverdesi gned forth em. #
Alw aysre place damag edcovers wit h
ge nui ne covers. &
WARNIN GRisk ofinju ryor deat hdue to
uns ecur edchild restra int systems inthe
ve hicle
If th ech ild restra int system isincor rectl y
ins talled ornotsecur ed,itcan com eloose.
The child restra int system could beflung
ar oun dand hitvehicle occupants. #
Alw aysins tallch ild restra int systems
cor rectl y,eve nwh en notin use. #
Alw ayscom plywit hth ech ild restra int
sy stem manuf acturer'sinstallation
ins truct ions . R
Alw aysobser vethech ild restra int system
manuf acturer'sinstallation andopera ting
ins truct ions aswellas theve hicle-specif ic
inf ormation:
- Installing theLA TC H-type (ISOFIX )ch ild
re stra int system onthere ar seat
(/ page56).
- Sec uring thech ild restra int system with
th eseat beltonthere ar seat
(/ page59). Oc
cupan tsaf ety 53

-
Secu ring thech ild restra int system with
th eseat beltonthefront passeng erseat
(/ page62). Obser vethespecif ic
ins truction sfo rth ere ar wa rd-faci ng and
fo rw ard-f acin gch ild restra int systems
(/ page61 ).
If th efront passeng erseat isoccupied,
ensur e,bo th bef oreand during thejour‐
ne y,that thest atus ofthefront
passeng erairbag iscor rect forth ecur‐
re nt situa tion(/ page 47).
R Obser vethewa rning labels intheve hicle
int erior and onthech ild restra int system.
R Also secur eTo pTe ther ifpr esent .
Do notmodif yth ech ild restra int system &
WARNIN GRisk ofinju rydue tomodif i‐
cations tothech ild restra int system
The child restra int system can nolong er
func tion proper ly.This poses anincr eased
ri sk ofinjur y. #
Nevermodify ach ild restra int system. #
Onlyaf fix acce ssories whic hha ve been
speciall yappr oved forth is ch ild
re stra int system bythech ild restra int
sy stem's manuf acturer. Onl
yuse child restra int systems whichar ein
pr oper working condit ion &
WARNIN GRisk ofinju ryor deat hcaused
by theuse ofdamag edchild restra int
sy stems
Child restra int systems ortheir retainin gsy s‐
te ms that have been subjec tedto stre ss in
an accident mayno tbe able toper form their
int ended protect ive func tion.
It ma ybe thecase that thech ild can notbe
pr oper lyrestra ined. #
Alw aysimmediat elyre place child
re stra int systems that have been dam‐
ag ed orinvo lved inan acc ident . #
Have thesecur ingsystems forth ech ild
re stra int systems checkedat aqu alif ied
spec ialistwo rkshop beforeins talling a
ch ild restra int system again. Av
oid direct sunli ght &
WARNIN GRisk ofburnswhen thech ild
seat isex posed todirect sunlight
If th ech ild restra int system isex posed to
dir ect sunlight orheat, partscould heatup.
Childr encould sufferbur nsfrom these parts,
par ticular lyon theme tallic partsof thech ild
re stra int system. #
Alw aysmak esur eth at thech ild
re stra int system isno tex posed to
dir ect sunlight . #
Protect thech ild restra int system, e.g.
wit hablank et. #
Ifth ech ild restra int system has been
ex posed todirect sunlight ,allo witto
cool beforesecu ring ach ild init. #
Neverlea vechildr enunat tende din the
ve hicle. 54
Occupant safety

Obser
vewhen stopping orpar king &
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 Getout and 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 Changing thetra nsmiss ionposition .
R Startin gth eve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Keep theve hicle SmartKey out ofreac h
of childr en. &
WARNIN GDang ertolife due toexpo‐
sur eto extreme heat or col din theve hi‐
cle
If people, particular lych ildr en, areex posed
to extreme temp eratur esove ran extende d
pe riod oftime, ther eis arisk ofser ious
injur yor dang ertolife. #
Neverlea veper sons, childr eninpar tic‐
ular ,unat tende din theve hicle. Ov
ervie wof suitable seatsintheve hicl efo r
ins talling ach ild restra int system Lef
t/right rear seat
Pr efer redsecur ingsystem:
® LATC H-type (ISOFIX )ch ild seat anchor ¯
Alsosecur eTo pTe ther ifpr esent
(/ page58).
Alt ernativ esecur ingsystem:
0076 Ve
hicle seatbelt
Fr ont passeng erseat
Sec uring system:
0076 Ve
hicle seatbelt
Be sureto obser ve:
R Ifth efront passeng erseat isoccupied,
ensur e,bo th bef oreand during thejour ney,
th at thest atus ofthefront passeng erairbag
is cor rect forth ecur rent situa tion
(/ page 47).
R Observeth eno teson aut omatic front
passeng erairba gshut off(/ page45) Occupant
safety 55

Ac
tiv atin gor deac tivatin gthe special seal
be ltre tract orofthe seat belt &
WARNIN GRisk ofinju ryor deat hif a
seat beltisunf astened while th eve hicle
is in mo tion
If th eseat beltisreleased whiletheve hicle is
in mo tion, thech ild safetyloc kis deac tiva ted
and thech ild restra int system isno long er
cor rectly secu red. The seat beltisdraw nin
sl ig htly bytheiner tiareel and cann otbe
immediat elyclosed again. #
Stop theve hicle immediat elyinaccor d‐
ance withth etraf fic condi tions. #
Activateth especial sealbeltretract or
ag ain and correctl ysecu rethech ild
re stra int system. When
enabled, thespecial sealbeltretract or
ens ures that theseat belts ofthefront
passeng erseat andrear seat sdo notslac ken
once thech ild restra int system issecur ed. The
seat belts onthefo llo wing seats areeq uip‐
ped withaspec ialseal beltretract or:
R Front passeng erseat
R Rear seat s #
Toins tall ach ild restra int system: when
ins talling ach ild restra int system, always
obser vethemanuf acturer'sinstallation and
opera tingins truct ions aswellas theinf orma‐
tion inthis Oper ator's Manual. #
Pull theseat beltsmoo thly from theseat belt
outle t. #
Engage theseat belttongu ein theseat belt
buc kle. #
Toactiv ateth especia lseal beltretrac‐
to r:pull theseat beltoutfully andletth e
iner tiareel retract itag ain.
Wh enthespecial sealbeltretract orisacti va‐
te d, youwill hear ara tche ting sound. #
Push thech ild restra int system down until
th eseat beltsitstight ly. #
Todeac tivatethe special seal be ltre trac‐
to r:press there lease buttonoftheseat belt
buc kle. #
Hold theseat belttongu eand guide ba ck to
th eseat beltoutle t. Ins
talling aLA TC H-type (ISOFI X)child
re stra int system onthere ar seat Ins
tallingaLA TC H-type (ISOFI X)child
re stra int system onthere 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. 56
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. &
WARNIN GRisk ofinju ryor deat hif th e
per missible gross mass ofthech ild and
ch ild restra int system isexc eeded
The LATC H-type (ISOFIX )ch ild seat secur ing
sy stems maybe ove rloaded andthech ild
ma yno tbe restra ined intheeve ntofan acci ‐
de nt, forex am ple. #
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),
use onlya LA TC H-type (ISOFIX )ch ild
re stra int system that sec ures thech ild
wit hth 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. Occ
upant safety 57

on
themultifunc tiondispla yon theins trument
clus ter.
¯ 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. #
Place theLA TC H-type (ISOFIX )ch ild restra int
sy stem withTo pTe ther on there ar seat .It is
esse ntial tocom plywith thech ild restra int
sy stem manuf acturer'sinstallation instruc‐
tion s. #
Foldthere ar seat backres tfo rw ard
(/ page10 6). #
Attach TopTe ther hook 2toTopTe ther
anc horage1. #
Foldthere ar seat backres tbac k
(/ page107 ). #
Makesur eth at TopTe ther belt 3isno t
twis tedand there ar seat backres tis loc ked
in place. #
Sec ureth ech ild restra int system with
LA TC H-type (ISOFIX )(/ page 56). #
Tensi on TopTe ther belt 3from thetrunk . #
Mak esur eth at ther eis suf ficie ntsea tbel t
st ra pfo rpul ling tight. #
Itis essentia lto com plywith thech ild
re stra int system manuf acturer'sinstallation
ins truct ions . 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. Oc
cupan tsaf ety 59