sensor MERCEDES-BENZ E-CLASS CABRIOLET 2021 Owner's Manual

*
NO
TEImpairment oftheoper ating effi‐
cie ncy ofthere stra int systems from
ins talling accessor ypar tsor from repair s
or we lding Air
bags andEmerge ncy Tensi oni ng Device s,
as wellas con trol unit sand sensorsfo rth e
re stra int systems, maybe installed inthefo l‐
lo wing areas ofyour vehicle:
R Door s
R Door pillars
R Doo rsi lls
R Sea ts
R Cockpit
R Instrument cluster
R Cen terconsole
R Lateral roof frame #
Donotins tallacc essor ypar tssuc has
audio systems inthese areas. #
Donotcar ryout repair sor we lding. #
Have afte rm arke tins tallation ofacc es‐
sor ies carried out ataqu alif ied spec ial‐
is two rkshop. Yo
uco uld jeopar dizeth eoper ating safetyof your
ve hicle ifyo uuse parts,tir es and wheel sas well
as acc essor iesreleva nt tosaf etywhic hha ve not
be en approve dby Mer cedes-Ben z.Saf ety-re le‐
va nt systems, e.g.thebr ak esy stem, maymal‐
func tion.Onl yuse Mercedes- BenzGenuineP arts
or par tsof equal qualit y.Onl yuse tires, wheels
and accessor iesthat have been specif ically
appr ovedfo ryo ur vehicle model.
Mer cedes-Ben zGenuineP arts aresubject to
st rict qualit yins pec tions.Eac hpar thas been
spec iallyde veloped, manufactured orselec ted
fo rMer cedes-Benz vehicles andadap tedto
th em. Ther efor e, onl yMer cedes- BenzGenuine‐
Pa rts should beused.
Mor eth an 300,0 00 differe nt Mer cedes-Be nz
Ge nui neP arts areav ailable forMer cedes-Benz
model s.
All author ized Mercedes-B enzCent ersmaint ain
a supply ofMer cedes-B enzGenuineP arts for nece
ssaryser vice andrepair work.In addition,
st ra tegically locatedpar tsdeliv erycent erspr o‐
vide forqu ick and reliable partsser vice .
Alw aysspecify theve hicle identif ication number
(VIN) (/page332) when order ing Mer cedes-
Benz GenuineP arts. Oper
ator's Manual
This Oper ator's Manual describesallmodels and
all standar dand optio nal equipme ntavailable for
yo ur vehicle atthetime ofthis Opera tor's Man‐
ua lgoing topress. Countr y-specif icdif fere nces
ar epo ssi ble. No tethat your vehicle mayno tbe
eq uipped withall featur esdesc ribed. Thisisalso
th ecase forsy stems andfunc tionsre leva nt to
saf ety. Ther efor e, theeq uipment onyour vehicle
ma ydif ferfr om that inthedescr iption sand illus‐
tra tion s.
The original purchase agreement foryo ur vehicle
cont ains alis tof all ofthesy stems inyour vehi‐
cle.
Should youha ve anyqu estion scon cerning
eq uipment andoper ation, please consult an
aut hor ized Mercedes- BenzCenter. Gener
alno tes 21

If
yo ubelie vethat your vehicle hasadef ect
whic hcould cause acr ash orcould cause injury
or deat h,yousho uld imm ediat elyinf orm Trans ‐
por tCanada inaddit iontonotify ing Mercede s-
Benz Canad aInc.
If Trans portCanada recei vedsimilar complaints,
it ma yopen aninve stigation ,and ifit finds that a
saf etydef ectex ists inagr oup ofvehicles, itma y
or der are cal land remedy campaign. Howe ver,
Tr ans portCanada cannotbec ome invo lved in
individual problems between you, your dealer or
Mer cedes-Ben zCanad aIn c.
To cont actTrans portCanada, youma ycall the
Def ect Inve stigation sand Recal lsDivi sionto ll-
fr ee inCanada at1-800 -333- 0510 or
81 9-99 4-3328 intheGatineau-Ot tawa area or
int ernat ionally; youma yalso gotothefo llo wing
we bsit esformor einf ormation:
R Eng lish:https://www .tc.gc.ca/recalls
R Frenc h:htt ps:/ /www .tc.gc .ca/ rappels Limit
edWa rranty
* NO
TEDama getotheve hicle arising
fr om violation ofthese oper ating instruc‐
tion s. Damag
eto theve hicle canarise from viola‐
tion ofthese oper ating instruction s.
This damag eis no tco veredeit her bythe
Mer cedes-Ben zim plied warrant yor by the
Ne w‑ orUsed- Vehicle Warrant y. #
Followtheins truction sin these oper at‐
ing instruction son proper operation of
yo ur vehicle aswellas on possible vehi‐
cle damag e. QR
code forre scue card
QR codes areatt ached inthefuel filler flap and
on theopposit eside ontheB-pillar .In theeve nt
of an acci dent, rescue services canusetheQR
code toquickl yfind theappr opriatere scue card
fo ryo ur vehicle. Thecurrent rescue cardcon‐
ta ins themos tim por tant informa tionab ou tyo ur ve
hicle inacom pact form ,e.g. thero utin gof the
electr iclines.
Fu rther information canbeobt ained athttps: //
www .mercedes-benz .de/qr-code. Data
storage Data
processi ngintheve hicl e Ele
ctroni cco ntr olunits
Electr oniccontr olunits areins talled inyour vehi‐
cle. Contr olunits process datawhic h,forex am‐
ple, they recei vefrom vehicle sensor s,ge ner ate
th emselv esorexch ang ebe tween themselv es.
Some control units arere qu ired forth esaf e
oper ation ofyour vehicle, some assistyo uwhen
dr ivin g,suc has driver assis tance systems, while
ot her senable comfortor infotainm entfunction s.
The follo wing prov ides youwit hge ner alinf orma ‐
tio nre ga rding datapr oces sing intheve hicle.
Ad dition alinf ormation rega rding exact lywh ich
da ta inyour vehicle arecollect ed,save dand
tra nsm itted tothird par ties and forwha tpur‐
pose, canbefound intheinf ormation direct ly
re lat ed tothefunc tionalch aract eristic sin qu es‐ Gener
alno tes 29

te
m wa rning lam plight sup. Itgoes outnolater
th an afe w sec ond saf te rth eve hicle isstar ted.
The com ponen tsof there stra int system areth en
func tional. Malfu
nctioning restra int system A
malfun ction has occurredin there stra int sys‐
te m if:
R The 0075 restra int system warning lam p
does notlight upwhen theignition is
switc hedon
R The 0075 restra int system warning lam p
light sup con tinuousl yor repeat edly during a
jour ney &
WARNIN GRisk ofinju rydue tomalfu nc‐
tions inthere stra int system
Com ponen tsinthere stra int system maybe
activ ated unint entionall yor notdeplo yas
planned inan acciden t. #
Have there stra int system checkedand
re pair edimmediat elyat aqu alif ied spe‐
cialis two rkshop. Fu
nction ofthere stra int system inan acci‐
dent Ho
wthere stra int system worksis de term ined by
th ese verity of theim pact detected and thetype
of acciden tantic ipated:
R Front alim pact
R Rear impact
R Sideim pact
R Rollover
The activ ation thre sholds forth ecom ponen tsof
th ere stra int system arede term ined based on
th eev aluatio nof thesensor values measur edat
va rious points intheve hicle. Thisprocess ispre-
em ptive in nat ure. The trigg ering/ deplo yment of
th ecom ponen tsof there stra int system mus t
ta ke place ingood timeatthest ar tof thecolli‐
sion.
Fa ctor swhi chcan only besee nand measured
af te ra colli sion hasoccur reddo notpla ya deci‐
siv ero le in thedeplo yment ofan airbag. Nordo
th ey prov ide anindic ation ofairbag deployment .
The vehicle maybe def ormed signif icantl ywit h‐
out anairbag beingdeployed. This isthecase if onl
ypar tswhic har ere lativ elyeasil ydef ormed
ar eaf fect ed and thera te ofvehicle deceler ation
is no thigh. Conversely ,an airbag maybe
deplo yedev en though theve hicle suffers onl y
minor deformation. Ifve ry rigid vehicle parts
suc has longitudinal membersar ehit, this ma y
re sult insuf ficie ntly highleve ls of vehicle decel‐
er ation.
Depending onthede tected dep loyme ntsitu a‐
tion, thecom ponen tsof there stra int system can
be activ ated ordeplo yedindepen dentlyof eac h
ot her :
R Emer gency Tensi oni ng Device :fr ont al
im pa ct, rear impact ,side impact ,ro llo ver
R Driver' sai rba g,front passe nger airba g:fron‐
ta lim pact
R Knee airbag: front alim pact
R Side airbag: sideimpact
R Head airbag: sideimpact ,ro llo ver,front al
im pact
The front passeng erairb agcan onlybe depl oyed
in an acciden tif th ePA SSENGER AIRBAGOF F
ind icat orlam pis off.Ifth efront passeng erseat 36
Occupant safety

#
Yousho uld onlyuse seat covers that
ha ve been approved forth ecor respond‐
ing seats byMer cedes-Ben z. &
WARNIN GRisk ofinju rydue tomalfu nc‐
tioning sensorsin thedoor
The func tion oftheairbags canbeimpair ed
due tomodif icationsorincor rect wo rkper‐
fo rm ed on thedoor sor door trim, orifth e
door sar edamag ed. #
Nevermodify thedoor sor par tsof the
door s. #
Alw aysha ve wo rkon thedoor sor door
tr im car ried out ataqu alif ied spec ialist
wo rkshop. &
WARNIN GRisk ofinju rydue todeplo yed
airbag
A deplo yedairbag nolong eroffers anypr o‐
te ction. #
Have theve hicle towe dto aqu alif ied
spec ialistwo rkshop inorder tohave the
deplo yedairbag replaced. Ha
ve deplo yedairbags replaced immediat ely. St
atus ofthefront passeng erfront airbag Fu
nction oftheaut oma ticfront passeng er
air bag shutoff
The automatic front passeng erairbag shutoffis
able todetect whe ther thefront passeng erseat
is occupied byaper son orach ild restra int sys‐
te m. The front pass engerairb agand front
pass engerknee airbagareenabl edordisa bled
accor dingly. &
WARNIN GRisk ofinju ryor deat hdue to
object sunder theco- driver seat
Objec tstrapped undertheco- driver seat can
int erfere wit hth efunc tion oftheaut omatic
co- driver airbag shutoffor damag eth esy s‐
te m. #
Donotst or ean yobject sunder theco-
dr iver seat. #
When theco- driver seat isoccupied,
mak esur eth at no obj ect sar etrapped
unde rth eco- driver seat. When
installing ach ild restra int system onthe
fr ont passeng ersea t,alw aysmak esur eof the
fo llo wing:
R Ensur eth at thech ild restra int system isposi‐
tion edcor rectl y(/ page 51).
R Alw ayscom plywithth ech ild restra int sys‐
te m manuf acturer'sinstallation instruct ions .
R Neverpla ceobjects (e.g.cushi ons)under or
behi ndthech ild restra int system.
R Fully re tract theseat cushion lengthadjus t‐
ment .
R The entire base ofthech ild restra int system
mus talw aysre st on thesitt ing surface ofthe
fr ont passeng ersea t.
R The backres tof thefo rw ard-f acin gch ild
re stra int system mus t,as faras possi ble,be Occupa
ntsaf ety 45

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. HAND
S-FREE ACCESS function Wi
th HANDS-FREE ACCES Syo ucan open the
tr unk lid by per form ing akic kin gmo vement
under thebum per.
Obser vetheno teswhen opening thetrunk lid
(/ page73 ). &
WARNIN GRisk ofburnscaused byaho t
ex haus tsy stem
The vehicle exhaus tsy stem can become very
ho t.Ifyo uuse HAND S-FRE EAC CES S,you
cou ldbu rn yourself bytouc hin gth eex haus t
sy stem. #
Alw aysensur eth at youon lyma kea
kic king movement within thede tection
ra ng eof thesensor s. *
NO
TEDama getotheve hicle caused by
unin tentio nallyopening thetrunk lid R
When usinganaut omatic carwash
R When usingahigh pressur ecleaner #
Deactiv ateKEYLES S-GOormak esur e
th at theSmar tKey locat edisat leas t
10 ft(3 m) away from theve hicle in
suc hsituations. When
making thekic king movement, makesur e
th at youar est andi ngfirm lyon thegr ound. You
cou ldother wise loseyour balan ce,e.g.on ice. 74
Opening andclosing

Obser
vethefo llo wing notes:
R The Smar tKey isbehin dth eve hicle.
R Stand atleas t12 in(30 cm) away from the
ve hicle while perform ing thekic king move‐
ment.
R Donotcome intocont actwithth ebum per
while making thekic king movement.
R Donotcar ryout thekic king movement too
slo wly.
R The kicking movement mustbe towa rdsth e
ve hicle andbackag ain. 1
Detection rang eof thesensor s If
se veralcon secut ive kic kin gmo vements are
no tsuccessfu l,wa itte nseco nds.
Sy stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing cases :
R The sensorsar edir ty,e.g. due toroad salt or
sn ow .
R The kicking movement ismade using apr os‐
th etic leg.
The trunk lidcould beopen edunin tentio nally,in
th efo llo wing situat ions:
R Aper son 'sarms orlegs aremo vingin the
sensor detection rang e, e.g .wh en polishi ng
th eve hicle orpic king upobject s.
R Object sar emo vedor placed behind theve hi‐
cle, e.g. tensi oni ng stra ps orlugg age.
R Clam pingstra ps, tarp sor other coverings are
pu lled ove rth ebum per.
R Apr otect ive mat withalengt hre ac hin gove r
th etrunk silldown intoth ede tection rang e
of thesensor sis used.
R The protect ive mat isno tsecur edcor rectl y. R
Workisbeing doneonthetrailer hitch,trail‐
er sor rear-m oun tedbicy clerack s.
Deactiv ateth eSmar tKey functions (/page67 )
or do notcar rytheSmar tKey about your per son
in suc hsit uatio ns. Swit
ching separ atetrunk locking onoroff If
yo ucen trall yunlo cktheve hicle while separate
loc king isactiv ated, thetrunk willremain locked. Openin
gand closin g75

Multimedia
system:
4 © 5
Set ting s5
Light
5 Intelligent LightSystem #
Activateor deacti vate thefunc tion. Ad
aptiv eHighb eamAssist Ad
aptiv eHighb eamAssistfuncti on &
WARNIN GRisk ofacci dent despite
Ad aptiveHig hbeam Assis t
Ad aptiveHig hbeam Assis tdoes notre act to:
R Road user swit hout lights,e.g .pedes ‐
tr ians
R Road user swit hpoor lighting,e.g .
cy clis ts
R Road user swhos elight ingisobs truct ed,
e.g .by abar rier
On very rare occasions, AdaptiveHig hbeam
As sis tma yfa ilto recogni zeother road user s
wit hth eir ownlighti ng,orma yre cogni ze
th em toolat e. In
these, orinsimilar situation s,theaut o‐
matic highbeam willnotbe deactiv ated or
will beactiv ated despit eth epr esenc eof
ot her road user s. #
Alw aysobser vethero ad and traffic
condi tions carefu llyand switchof fth e
high beam ingood time. Ad
aptiveHig hbeam Assis tcan notta ke into
acc ount road, weather ortraf fic condi tions.
De tection maybe restrict ed inthefo llo wing
cases :
R Inpoor visibilit y,e.g. fog, hea vyrain or sno w
R Ifth er eis dir ton thesensor sor thesensor s
ar eobscur ed
Ad aptiveHig hbeam Assis tis on lyan aid. Youar e
re sponsible foradju sting theve hicle's lighting to
th epr eva iling light,visibilit yand traffic condi ‐
tions . Ad
aptiveHig hbeam Assis taut omat ically
swit ches between thefo llo wing types oflight :
R Lowbeam
R High beam
At speeds great erthan 19 mp h(3 0km/h):
R Ifno other road user sar ede tected, thehigh
beam willbeswitc hedonaut omaticall y. 11
8
Light andvisib ility

The
high beam willswitc hof faut omaticall yin
th efo llo wing cases :
R Atspeeds below16 mp h(25 km/h)
R Ifot her road user sar ede tected
R Ifstre et light ingissuf ficie nt
The system's optical sensor islocat edbehind
th ewindshield neartheov erhead control panel.
Switc hingAdaptiv eHighb eamAssiston/ off
Swi tching on #
Turn thelight switc hto the 0058 position . #
Switc hon thehigh beam usingthecombin a‐
tion switc h.
If Ad aptiveHig hbeam Assis tis act ivat ed,
th e00CE indicat orlam pwill light upon the
multifu nctiondisplay.
Switc hingoff #
Switc hof fth ehigh beam usingthecombin a‐
tion switc h. Ad
aptiv eHighb eamAssistPlus Ad
aptiv eHighb eamAssistPlus functi on
(C anada) &
WARNIN GRisk ofacci dent despite
Ad aptiveHig hbeam Assis tPlus
Ad aptiveHig hbeam Assis tPlus does not
re act to:
R Road user swit hout lights,e.g .pedes ‐
tr ians
R Road user swit hpoor lighting,e.g .
cy clis ts
R Road user swhos elight ingisobs truct ed,
e.g .by abar rier
On very rare occasions, AdaptiveHig hbeam
As sis tPlus mayfa ilto recogni zeother road
user swit hth eir ownlighti ng,orma yre cog‐
nize them toolat e.
In these, orinsimilar situation s,theaut o‐
matic highbeam willnotbe deactiv ated or
will beactiv ated despit eth epr esenc eof
ot her road user s. #
Alw aysobser vethero ad and traffic
condi tions carefu llyand switchof fth e
high beam ingood time. Ad
aptiveHig hbeam Assis tPlus cannotta ke into
acc ount road, weather ortraf fic condi tions.
De tection maybe restrict ed inthefo llo wing
cases :
R Inpoor visibilit y,e.g. fog, hea vyrain or sno w
R ifth er eis dir ton thesensor sor thesensor s
ar eobscur ed
Ad aptiveHig hbeam Assis tPlus ison lyan aid.
Yo uar ere sponsible foradju sting theve hicle's
lighting tothepr ev ailin glight ,visi bilit yand traf‐
fi c condi tions. Lig
htand visibility 11
9

Ad
aptiveHig hbeam Assis tPlus automat ically
swit ches between thefo llo wing types oflight :
R Lowbeam
R Partial high beam
R High beam
R ULTRA RANGE Highbeam UL
TRA RANGE Highbeamincreases thebr ight‐
ness ofthecon eof light totheleg ally permitt ed
maximum.
Pa rtial high beam doesnotinc lude other road
user sin thehigh beam area. Itdoes notblind
th em but enables fullhigh beam illumination for
th edr iver apar tfr om theexc luded vehicles.
At speeds below16 mp h(2 5km/h) orwhe n
th er eis suf ficie ntstre et light ing:
R The partial high beam andthehigh beam will
be switc hedoffaut omaticall y.
At speeds great erthan 19 mp h(30 km/h):
R Ifno other road user sar ede tected, thehigh
beam willbeswitc hedonaut omaticall y.
R Ifot her road user sar ede tected, thepar tial
high beam willbeswitc hedonaut omaticall y.
At speeds above25 mph(4 0km/h) :
R Ifno other road user sar ede tected on a
st ra ight road, ULTRA RANGEHighbeam will
be swit ched on aut omaticall y.
R Ifot her road user sar ede tected, thepar tial
high beam willbeswitc hedonaut omaticall y.R
Ifhighly reflect ive signs arede tected, ULTRA
RANG EHigh beamwillbe swi tched offau to‐
matical ly.
The system's optical sensor islocat edbehind
th ewindshield neartheov erhead control panel.
Switc hingAdaptiv eHighb eamAssistPlus
on/ off(C anada)
Swi tching on #
Turn thelight switc hto the 0058 position . #
Switc hon thehigh beam usingthecombin a‐
tion switc h.
When thehigh beam isswitc hedonaut omat‐
icall yin thedar k,the00CE indicat orlam pon
th emultifunc tiondispla ywill light up.
Switc hingoff #
Switc hof fth ehigh beam usingthecombin a‐
tion switc h. 12
0
Light andvisib ility

The
electr olyteis hazar dous tohealt hand
causes irrita tio n.Itmu stnotcome intocon‐
ta ct with your skin, eye s,respir ator yor ga ns
or clo thing orbe swallo wed. #
Ifyo uco me intoco ntact withelec tro‐
ly te ,obser vethefo llo wing:
R Imm ediat elyrinse theelectr olyte
fr om your skin wit hwa terand seek
medica latt ention.
R Ifelectr olyt ecomes intocont act
wit hyo ur eyes, immediat elyrinse
th em thor oughly withclean water
and seek medicalattent ion.
R Ifth eelectr olyt eis sw allo wed,
immediat elyrinse your mout hout
th or oughl y.Do notind uce vomiting.
Seek medica latt ention immedi ately .
R Immedia tely ch ang eout ofclo thing
whic hhas been contaminat edwith
electr olyt e.
R Ifan allergic react ion occurs, seek
medi calattent ion imm ediat ely. The
inside rear vie wmir rorand theoutside mir‐
ro ron thedr iver's side willautomaticall ygo into
anti- glar emode iflight from aheadlam phit sth e
sensor ontheinside rear vie wmir ror.
Sy stem limit s
The system will notgo intoanti- glar emode if:
R The engineisswit ched off.
R Reversege ar iseng aged.
R The interior light ingisswit ched on. Fr
ont- passeng erout side mirrorpar kingpos i‐
tio nfun ction The
parking posit ionmak espar kingeasier .
The front -pass engerouts idemirrorwil lswi vel
do wn wardsin thedir ect ion ofthere ar wheel on
th efront passeng er'sside when:
R The parking position isstor ed (/ page12 9).
R Thefron t-pa ssenger mirror isselect ed.
R Reversege ar iseng aged. The
fron t-passe nger out side mirrorwil lmo ve
bac kto its original positionwhen:
R Youshif tth etra nsmiss iontoano ther trans‐
mission position.
R Youar etra veling ataspeed grea terth an
9 mp h(1 5 km/h).
R Youpr ess thebutt onforth eoutside mirror
on thedr iver's side. 12
8
Light andvisib ility