2021 MERCEDES-BENZ E-CLASS CABRIOLET ignition

R
Units fordis tance
R Softwareup dates
R Dat aim po rt/e xpor t
R PIN protect ion
R System Reset Inf
ormat iononimpor tant system updates Im
por tant system updat esma ybe neces saryfo r
th esecur ityofyour mult imed iasystem's data.
Ins tallth ese updat es,orelse thesecur ityofyour
mult imed iasystem cann otbe ensur ed.
A sy stem updat econ sistsof thre esteps:
R Downloading orcop ying ofthedat are qu ired
fo rins tallation
R Installation ofthedo wnloaded system updat e
R Activati on ofthedo wnloaded system updat e
by restar tin gth esy stem
% Ifaut omatic softwareupdat esareactiv ated,
th esy stem updat eswill bedownloaded auto‐
maticall y. The
multimedia system prov ides amess age
when asy stem updat eis available.
Yo uha ve thefo llo wing selectionoption s:
R Accept andInstall
The system updat ewill bedownloaded inthe
bac kground .
R Infor mat ion
In fo rm atio nabout thepending system
updat eis displa yed.
R Later
The system updat ecan bedownloaded man‐
uall yat alat er time.
Deep system updates
Dee psy stem updat esaccess vehicle orsystem
se ttings andcanther efor eonl ybe car ried out
when theve hicle isstatio naryand theignition is
switc hedoff.
If th edo wnload ofadeep system updat eis com‐
ple tedand thedo wnloaded system updat eis
re ady forins tallation ,yo uwill beinformed ofthis
af te rth ene xt ignition cycle, forex am ple. %
Park theve hicle safely inasuit able location
bef orest ar tin gth eins tallation .
Re quiremen tsforth eins tallation :
R The ignit ionisswitc hedoff.
R Notesand warnings have been read and
acc epted.
R The elect ric pa rking brak eis applied.
If all requ iremen tshave been fulfilled, thedo wn‐
loaded system updat eis ins talled. Themultim e‐
dia system cann otbe oper ated while thedo wn‐
loaded system updat eis being installed and
ve hicle functionsarere strict ed.
If er ro rs should occurduring theins tallation ,th e
multime diasystem automatic allyatt em ptsto
re stor eth epr ev ious version. Ifre stor ation ofthe
pr ev ious version isno tpossible ,a symbol
appear son themedia display.Con sult aqu ali‐
fi ed specialis two rkshop toresolv eth epr oblem. 232
MBUX multimedia system

Making
anemer gency call #
Toopen theco verof SOS button2 ,pr ess it
br ief ly. #
Press and hold SOS button3 forat lea st
one second.
If aMer cedes mecall isactiv e,an emer gency
cal lcan still be trigg ered. This hasprior ity ove r
all other activ ecalls.
Inf ormat ionabout theMer cedes mecall
using theme button
A cal lto theMer cedes- BenzCustomer Cent er
has been initiatedvia theme butt onintheove r‐
head controlpanel orthemultimedia system
(/ page24 6).
Using thevo ice dialog system youacc ess the
desir edser vice:
R Accid ent and Brea kdo wnManag eme nt
R Mer cede s-Benz Customer Centerforge ner al
inf orma tionab ou tth eve hicle
Yo ucan find informati onon thefo llo wing topics:
R Activati on ofMe rcedes meconnect
R Oper ating theve hicle R
Near estaut hor ized Mercedes-Ben zCent er
R Other products andservices from Mer cedes-
Benz
Dat ais transf erreddur ing thecon nect iontothe
Mer cedes-Ben zCus tomer Cent er(/ page24 8).
Ca lling theMer cedes- BenzCustomer Center
usi ng the multi mediasy stem
Re quirement s:
R Access toaGSM networkis available.
R The contract partner' sGSM networkco ver‐
ag eis available inthere spectiv ere gion.
R The ignition mustbe switc hedonsothat
ve hicle datacan betransf erredaut omati‐
cally .
Multimedia system:
4 © 5
Phone 5
g #
Call Mercedes meconnect.
Af terconf irmation, themultimedia system
sends there qu ired vehicle data.The data
tr ansf erissho wninthemedia display. Then,
youcan selectaser viceand beconn ect ed
to aspec ialistat theMer cedes- BenzCustomer
Cent er.
Call ingtheMer cedes- BenzCustomer Center
af te raut omat icac ciden tor break down
de tection
Re quirement s:
R The vehicle hasdetected anacci dent or
br ea kdo wnsitu ation.
R The vehicle isstatio nary.
R The hazar dwa rning light sar eswitc hedon.
% This function isno tav ailable inall coun tries.
The vehicle candetect acci dent orbrea kdo wn
situ ations undercer tain cir cums tances.
In theeve ntan acci dent or brea kdo wnisde tec‐
te d, theemer gency guide sho wssafetyno tesin
th emultimedia system displa y.
Af terqu itting theemer gency guide displ ayon
th emultimedia system, apr om ptappear sask ing
whe ther youwo uld liketo get suppor tfr om the
Mer cedes-Ben zCus tomer Cent er. MBUX
multime diasystem 24
7

#
Select Call.
R Afteryo ur agr eem ent,or ifth eMer cedes
me connect service "Acciden tand Break‐
do wn Manag ement"is activ e,theve hicle
dat ais transf erredaut omatic ally
(/ page24 5).
R The Mercedes -Benz Customer Center
ta ke syo ur call and orga nize sth ebr eak‐
do wn and acciden tassis tance.
Yo uma ybe charge dfo rth ese services.
% Depen dingonthese verity of theacciden t,
an aut omatic emergency callcan beiniti‐
at ed .Thi sha spr iority over all other activ e
calls.
% Inaddition, ifth eMer cedes meconnect
ser vice "Telediagnos tics"is activ e,asimilar
pr om ptcan appea raf te ra dela yin theeve nt
of abr ea kdo wn. Ifyo uar ealr eady incontact
wit hth eMer cedes- BenzCustomer Cent eror
ha ve already recei vedsuppor t,th is prom pt
can beigno redor declined.
% Ifyo uans werth epr om ptforsupp ortfr om
th eMer cedes- BenzCustomer Cent erwit h Later,
themessag ewill behidden and
appear again later.
The prom pttrig ge redby theMer cedes me
con nect service "Telediagnos tics",can either
be con firm ed ordeclined. Afterbeing
decli ned, this will notbe sho wnagain.
Ar ranging aser vice appointment viaa
Mer cedes mecall
If yo uha ve act ivat ed themaint enanc emanag e‐
ment service, releva nt vehicle datais transf erred
aut omat icallyto theMer cedes- BenzCustomer
Cent er.Yo uwill then recei veindiv idual recom‐
mend ations rega rding themaint enanc eof your
ve hicle.
Re gardless ofwhe ther youha ve conse nted to
th emaint enanc emanag ement service, themulti‐
media system reminds youaf te ra cer tain
amount oftim eth at aser viceis due. Apr om pt
appear sask ing ifyo uwo uld liketo mak ean
app ointment. #
Toarra ng easer vice appointment :select
Call .
Af teryo ur agr eem ent,th eve hicle datais
tr ansf erredand theMer cedes- BenzCus‐ to
mer Cent ertake syo ur prefer redappoint‐
ment date.The information isthen sent to
yo ur desir edser viceout let.
This willcontact youto conf irm theappoint‐
ment andifneces sarycon sult about the
de tails.
% Ifyo usele ctLat erafte rth eser vice messag e
appear s,themessag eis hidden andreap‐
pear sat alat er tim e.
Tr ansf erre ddata during aMer cedes mecall
Whe nyo umak easer vicecall viaMer cedesme,
dat ais transm itted. This enables targeted advice
and asmoo thser vice.
The follo wing requ iremen tsmus tbe fulf illed for
th etransf erofthedat a:
R The ignition isswitc hedon.
R The requ ired dat atransf ertech nol ogy issu p‐
po rted bythemobile phonenetworkpr o‐
vider .
R The qualit yof themobile connect ionissuf fi‐
cie nt. 24
8
MBUX multimedia system

%
eCall canbedeactiv ated byan aut hor ized
Mer cedes-Ben zdealer .Please note that in
th eeve ntow ner shipof theve hicle istrans‐
fe rred toano ther ow ner inits deacti vated
st at e, eCall willremain deactivated unles s
th ene wow ner visits an author ized
Mer cedes-B enzdealer shiptoreact ivat eth e
sy stem. Ov
ervie wof theMer cedes- Benzemergency
call system eCall
canhelp toreduce thetime between an
acciden tand thear riva lof emer gency service s
at thesit eof theacciden t.Ithelps locatean
acciden tsit ein places that aredif ficul tto
acc ess. However,eve nif ave hicle iseq uipped
wit heCal l,th is does notmean thesy stem isON.
As suc h,eCall doesnotre place dialing 911in the
eve ntofan acci dent.
An eme rgency callcan bemade automatical ly
( / pag e253) ormanuall y(/ page25 4) Onl y
mak eemer gency callsifyo uor other sar ein
need ofrescue. Onl
ymak eemerg encycallsifyo uor other sar e
in need ofrescue. Donotmak ean emerg ency
call intheeve ntofabr ea kdo wnorasimil arsit‐
ua tio n.
Mes sageson the displa y
SOS NOT READY :th eignition isno ton oreCall
no tav ailable.
Dur ing anact ive emer gency call,0053 appe ars
in thedispla y.
Yo ucan find mor einf orma tionon there gional
av ailabilit yof eCall at:ht tp s:// www .merced es-
ben z-mobi le.com /extra /eca ll/
% Ifth er eis amalfunct ionintheMer cedes-
Benz emergency callsy stem (e.g. afa ult with
th espeak er,micr ophone, airbag,SOSbut‐
to n), acor responding messageappea rsin
th emultifunc tiondispla yof theins trument
clus ter. Tr
igg ering anaut omat icMer cedes‑B enz
emer gency call Re
quirement s:
R The ignit ionisswitc hedon. R
The star terbatt eryis suf ficie ntly charge d.
The Mercedes‑ Benzemer gency callsy stem trig‐
ge rs an emer gency callau tomatical lyin thefo l‐
lo wing cases :
R Afteractiv ation ofthere stra int systems such
as airbags orEmer gency Tensi oni ng Device s
af te ran accide nt
R Afteran automatical lyinitia tedemer gency
st op byActiveEmerg encyStop Assis t
The emer gency callha sbe en ma de:
R Avo ice con nection ismade tothe
Mer cedes‑Ben zemer gency callcent er.
R Ames sage withacc iden tdat ais transm itted
to theMer cedes‑ Benzemergency callcent er.
The Mercedes‑B enzeme rgency callcent er
can trans mit theve hicle position datato one
of theemer gency callcent ers.
The SOS button intheove rhead control panel
fl ashes untilth eemer gency callis finis hed .
It is no tpo ssi ble to immed iatelyend anaut o‐
matic emergency call. MBUX
multimed iasystem 253

R
freq uent operation inmount ainouste rrain or
on poor road sur faces
R whe nth eengine isoftenleft idling forlong
per iods
R oper ation inpar ticula rly dus tycond ition s
and /orif air -rec ircula tion mod eis freq uen tly
used
In these orsimilar operating conditions ,ha ve the
int erior airfilt er ,engin eair clean er,engin eoil
and oilfilt er etc. chang edmor efreq uent ly.The
tir es mus tbe checkedmor efreq uentl yif th e
ve hicle isoper ated under increased loads. Fur‐
th er information canbeobt ained ataqu alif ied
spec ialistwo rkshop. Batt
erydisconne ctionperiods The
ASSYSTPL US service interva ldisp lay
can onlycalculat eth eser vice dueda te when
th ebat tery isconnect ed. #
Notedown theser vice duedatedispla yedon
th eins trument displaybef orediscon necting
th ebatt ery(/ page26 4). Engine
compartment Opening
andclosing thehood &
WARNIN GRisk ofacci dent dueto driv‐
ing withth ehood unlocked
The hood mayopen andblockyo ur vie w. #
Neverre lease thehood when driving. #
Beforeev erytrip, ensur eth at thehood
is loc ked. &
WARNIN GRisk ofacci dent andinjury
when openingand closingthehood
The hood maysuddenl ydr op intoth eend
position .
Ther eis arisk ofinjur yfo ran yone inthe
hood's rang eof mo vement. #
Open orclose thehood onlywhen ther e
is nobody inthehood's rang eof mo ve‐
ment. &
WARNIN GDang erofburnswhen open‐
ing thehood
If yo uopen thehood when theengine has
ove rheat edordur ing afire intheengine
com partmen t,yo uco uld come intoco ntact
wit hho tga ses orother escaping operating
fl uids. #
Beforeopen ingthehood, allowthe
engine tocool down. #
Intheeve ntofafire intheengine com‐
par tmen t,ke ep thehood closed and
call thefire ser vice. &
WARNIN GRisk ofinju rydue tomo ving
par ts
Com ponents intheengine compartmen tma y
con tinue running orstar tup sudden ly,ev en if
th eignition isswitc hedoff.
Mak esur eof thefo llo wing beforeper form ing
ta sk sin theengine compartmen t: #
Swi tchth eignition off. Maint
enanc eand care265

#
Neverre ac hint oth edang erzon esur‐
ro und ingmovingco mp onent s,e.g. the
ro tatio nar ea ofthefa n. #
Remo vejewe leryand watche s. #
Keep items ofclo thing and hair away
fr om moving parts. &
WARNIN GRisk ofinju ryfrom touc hin g
co mp onent sunder voltag e
The ignit ionsystem and thefuel injec tion
sy stem workund erhigh voltag e. Youco uld
re cei vean elec tric shoc k. #
Neverto uc hco mp onent sof theignition
sy stem orthefuel injec tionsystem
when theignition isswitc hedon. &
WARNIN GRisk ofburnsfrom hotcom‐
ponent partsintheengine compartmen t
Cer tain com pone ntpar tsintheengine com‐
par tmen tcan bevery hot,e.g. theengine,
th ecooler andpartsof theex haus tsy stem. #
Allo wtheengine tocool down and only
to uc hco mp onent partsdescr ibedin
th efo llo wing. &
WARNIN GRisk ofinju ryfrom using the
winds hieldwiper swhile theengine hood
is open
When theengine hoodisopen andthewind‐
shield wipersar ese tin mo tion ,yo ucan be
tr apped bythewiper linkage. #
Alw aysswitc hof fth ewindshield wipers
and ignition beforeopening theengine
hood. Opening
thehood #
Torelease thehood, pullonhandle 1. 266
Maintenanc eand care

#
Push handle 1ofthehood catchupw ards
and liftth ehood byappr oximat ely15 in
(40 cm).
Closing thehood #
Lowe rth ehood toaheigh tof aroun d8 in
(20 cm)and then allo witto fall, appl ying a
litt leforc eas youletit go. #
Ifth ehood canstill be lifte dslightl y,open
th ehood again and close itwit halittle more
fo rc euntil iteng ages cor rectl y. Engine
oil Chec
kingtheengine oilleve lusing theon-
boar dcom puter
Re quirement s:
R The engin ehas been warmed up.
R The vehicle ispar kedon aleve lsur face.
R The engineisrunning atidle spe ed.
The engineoille ve lis de term ined during drivin g.
De term inin gth eengine oilleve lcan take up to
30 minut eswit hanor mal driving style and even
long erwit han activ edr iving style.
On- boar dcom puter:
4 Service5
Engine OilLevel
Yo uwill see oneof thefo llo wing mess ages on
th emultifunc tiondispla y:
R Measuring Engine OilLevel.. .:measur ement
of theoil leve lis no tye tpo ssi ble. #
Repeat there qu estaf te ra maximu mof
30 minut es'driving.
R Engine OilLevel OKand thebar displa yfo r
indic atingth eoil leve lon themultifunc tion
displa yis green and isbe tween "min" and
"max": theoil leve lis cor rect.
R Engine OilLeve lAdd 1,1qts. andthebar dis‐
pla yfo rindica tingtheoil leve lon themulti‐
func tion displa yis orang eand isbelo w"min": #
Add1.1 US qt(1l)of engine oil.
R Red uce Engine OilLevel andthebar displa y
fo rindica tingtheoil leve lon themultifunc ‐
tion displa yis orang eand isabo ve"max ": #
Drain offan yex cess engineoilthat has been
added. Todo so, con sult aqu alif ied spec ialist
wo rkshop.
R For Engine OilLevel Switch Ignition On #
Switc hon theignition tocheckth eengine oil
le ve l.
R Engine OilLeve lSyst emInoperat ive:The oil
le ve lsen sor isdef ective or notcon nected. Maint
enanc eand care26
7

#
Clean thene tof thefo lding windscreen with
a dam pclo thincon junction withth ecar e
pr oducts andcleanin gag ent sre comme nded
and approve dby Mer cedes-Ben z. No
teson car eof vehicl epar ts &
WARNIN GRisk ofentr apment ifth e
winds hieldwiper sar eswit ched on while
th ewindshield isbeing cleaned
If th ewindshield wipersar ese tin mo tion
while youar ecle anin gth ewindshield or
wiper blades, youcan betrapped bythe
wiper arm. #
Alw aysswitc hof fth ewindshield wipers
and theignition beforecleanin gth e
winds hieldorwiper blades. &
WARNIN GRisk ofburnsfrom theta il‐
pipe andtailpipe trims
The exhaus tta ilpipe andtailpipe trims can
becom eve ry hot.Ifyo uco me intoco ntact wit
hth ese partsof theve hicle, youco uld
bur nyo urself . #
Alw aysbe par ticular lycareful arou nd
th eta ilpipe andtheta ilpipe trims and
super visechildr enespec iallycloselyin
th is area. #
Allo wvehicle partsto cool down before
to uc hin gth em. To
avo iddamag eto theve hicle, observethe
no teson cleaning andcareof thefo llo wing vehi‐
cle parts:
Wheels andrims
R Use waterand acid-free alloy wheel cleaners.
R Donotuse acidic alloywheel cleanersto
re mo vebrak edus t.This could damag ewheel
bolts andbrak ecom ponen ts.
R Toavo idcor rosion ofthebr ak ediscs and
br ak epads, drive th eve hicle fora fe w
minut esafte rclea ning beforepar king it.The
br ak ediscs andbrak epa dswarm upand dry
out . Wi
ndo ws
R Clean thewindo wsinsid eand outs idewitha
dam pclo thand withacle anin gag ent recom‐
mend edforMer cedes-Benz.
R Donotuse dryclo thsor abr asiv eor sol vent-
ba sed cleani ng agents tocle an theinside of
windo ws.
Wi per blades
R Movethewiper arms intoth ere placemen t
position (/page12 3).
R With thewiper arms folded out,clean the
wiper blades withadam pclo th.
R Donotcle an thewiper blades tooof ten.
Ex terior light ing
R Clean thelenses withawe tsp ong eand mild
cle ani ng agent, e.g.car shampoo.
R Onlyuse cleaning agents orcleaning cloths
th at aresuit able forpla stic lens es.
Sensor s
R Clean thesensor sin thefront and rear
bum perswit hasof tclo thand carsham poo
(/ page16 4). 27
6
Maint enance andcare