tow MERCEDES-BENZ E-CLASS CABRIOLET 2021 Service Manual

speed
onanunlimit edstre tchof road, there c‐
omme ndedspeedis80 mph(1 30 km/h) .
If Ac tiveDis tance AssistDIS TRONI Cha sbe en
pu tint opa ssi ve mode bypressing theacceler a‐
to rpeda l,onl yspee dlimi tswhi charehigh er
th an these tspeed areadop ted.
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 164).
Sy stem limit s
The system limits ofTraf fic Sign Assistappl yto
th ede tection oftraf fic sig ns (/ page 190).
Spee dlimits below 12mp h(20 km/h) areno t
aut omaticall yadop tedby thesy stem asthe
st or ed speed. Temp oraryspeed restrictions (e.g.
fo ra cer tain tim eor due towe ather condition s)
can notbe proper lyde tected bythesy stem. The
maximum permissible speedapplying toave hi‐
cle withatrailer isno tde tected bythesy stem.
Ad jus tth espeed inthese situation s. &
WARNIN GRisk ofacci dent dueto Active
Spe edLimi tAssi stadap tingth eve hicle's
speed
The speed adoptedby ActiveSpe edLimi t
Assi stma ybe toohigh orincor rect insome
indi vidualcase s,su ch as:
R atspee dlimit sbelo w12 mp h(20 km/h)
R inwe tcond itions orinfog
R when towing atrailer #
Ensur eth at thedr iven speed complies
wit htraf fic re gulations. #
Adjus tth edr iving speed tosuit current
tr af fic and weather condition s. Fu
nction ofrout e-base dspee dadap tation
When ActiveDis tance AssistDIS TRONI Cis acti ‐
va ted, theve hicle speed willbeadap tedaccor d‐
ing lyto thero uteev ent sahead. Dependingon
th edr ive pr og ram sele cted, theve hicle negoti‐
at es aro uteeve ntaheadin an eco nomi cal,com‐
fo rtable ordynam icman ner.When thero ute
eve nthasbe en passe d,theve hicle acceler ates
ag ain tothestor ed speed. Thesetdis tance to th
eve hicle infront, vehicles detected aheadand
spe edrestrictions aheadar eta ke nint oacco unt.
Yo ucan activat eand deac tivatero ute-based
spee dadap tatio nin themultimedia system
(/ page18 0).
The follo wing routeeve nts areta ke nint o
acco unt:
R Curves
R T-int ersect ions,ro und about sand tollst atio ns
R Turnsand exits
R Traf fic jams ahead(only with Liv eTraf fic
Inf ormation )
% When theto llst atio nis reac hed, ActiveDis ‐
ta nce AssistDIS TRONI Cad op ts thespeed as
th estor ed speed.
Also, thespeed isreduced ifth etur nsignal indi‐
cat ortochang elane sis swit ched on and one of
th efo llo wing situat ionsisde tected:
R Turning offat intersect ions
R Drivin gon slowing- down lanes
R Drivin gon lanes adjacenttoslo wing-do wn
lanes Dr
iving andparking 17
9

The
turnsignal indicat orisswitc hedonaut omat‐
ically when thepar king procedur ebegins. You
ar ere sponsible forsele cting thetur nsignal indi‐
cat orinaccor dance withth etraf fic condi tions.If
neces sary,select thetur nsignal indicat or
accor dingly. &
WARNIN GRisk ofacci dent dueto vehi‐
cle swinging outwhile parking orpulli ng
out ofapar king space
While parking orexitin gapar kingspace, the
ve hicle swings outand candrive ont oar eas
of theonc oming lane.
This could cause youto coll ide wi th object s
or other road user s. #
Payatt ention toobject sand other road
user s. #
Wher enec essar y,stop theve hicle or
cancel thepar king procedur ewit h
Ac tivePa rking Assist. #
If,forex am ple, thePlease Engage Reverse
Gear messag eappear sin themedia display: select
thecor responding transmission posi‐
tion.
The vehicle drives intoth eselect edpar king
space.
% During thepar king procedur ewit hAc tive
Pa rking Assist, th elane markings aredis‐
pla yedin green inthecamer aimag e.
On com pletion ofthepar king procedur e,the
Ø Parking AssistFinished, TakeContr olof
Vehicle messageappear s.Fu rther maneuv ering
ma yst ill be nec essar y. #
Secu retheve hicle agains tro lling away.
When requ ired bylegalrequ iremen tsor local
con dition s:tur nth ewheels towa rdsth ecurb.
% Youcan stop theve hicle andchang eth e
tr ans missi on positio ndu ring thepar king pro‐
cedur e.The system then calculat esane w
ve hicle path.Ifno newvehicle pathis availa‐
ble, thetransmission positioncanbe
ch ang edagain, orthepr ocess canbecan‐
celed. Youcan also interru pt thepar king pro‐
cedur eby braking, forex am ple, toletpeople
in or out oftheve hicle. Theparking proce‐ dur
ecan then be con tinued bybrief lypress‐
ing theacceler ator pedal.
Exiting apar king space withAc tiv ePa rking
Assis t
Re quirement s:
R The vehicle iseq uipped withasur round view
cam era.
R The vehicle hasbeen parkedpar allel tothe
ro ad withAc tivePa rking Assist.
Please note that youar ere sponsible forth eve hi‐
cle and surround ingsdur ing theent ire par king
pr ocedur e. #
Startth eve hicle. #
Press butt on1.
The media displaysho wsthevie wof Active
Pa rking Assist. 21
4
Driving and parking

ing
and parkingre mains withyo u. Mak esur e
th at no per son s,anim alsorobj ect set c. arein
th emaneuv ering rang e. &
WARNIN GRisk ofacci dent caused by
limit eddetection bythemaneuv ering
br ak efunc tion
The maneuv ering brak efunc tion cann ot
alw aysclear lyde tect peo ple. Other obstacle s
ar eno tde tected bythefunc tion.
In these cases, thefunc tion maybr ak e
unnec essarilyornotbr ak eat all. #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation; donotre ly on themaneu‐
ve ring brak efunc tionalone. #
Beready tobrak e. Sy
stem limit s
Obser vethesy stem limits ofthefo llo wing func‐
tion s:
R ActivePa rking Assist(/ page21 1)
R Surround viewcam era(/ page20 4) The
man euvering brak efun ction isno tav ailable
in thefo llo wing situat ions:
R Oninclines
Ac tiv atin g/deac tivatin gthe mane uvering
ass ista nt
Mu ltimed iasystem:
4 © 5
Set ting s5
Assist ance
5 Camera &Parkin g #
Switc hManeuverin gAssist anceonoroff.
% ForDr ive Aw ayAssi st(/ pag e21 5) tofunc‐
tion, maneu vering assist ant mus tbe act ive. Ve
hicl eto wing instruct ions
The vehicle isno tsuit able forth euse oftow bar
sy stems that areused forflat towing ording hy
to wing, forex am ple. Attach ing and using tow bar
sy stems canlead todamag eon theve hicle.
When youar eto wing ave hicle withto w bar sys‐
te ms, safedr iving charact eristic scan notbe
guar anteed forth eto wing vehicle ortheto we d
ve hicle. Thevehicle-tr ailercombination may
sw erve from side toside. Complywithth eper‐
mitt edtowing methods (/page29 1) and the ins
truct ions forto wing withbo th axle son the
gr ou nd (/ page 292). Dr
iving andparking 217

Te
lephone Te
lephon y No
teson telephon y &
WARNIN GRisk ofdist ra ction from oper‐
ati ng integr ated commu nication equip‐
ment whiletheve hicle isin mo tion
If yo uoper ateco mm unic ationeq uipme nt
int egrat edintheve hicle when driving, you
cou ldbe dist ra cted from thetra ffic situat ion.
This could alsocause youto lose control of
th eve hicle. #
Onlyoper ateth is eq uipmen twhen the
tr af fic situ ation per mits. #
Ifyo ucan notbe sur eof this, stop the
ve hicle whilstpa ying attention toroad
and traffic condi tions andoperate the
eq uipment withth eve hicle statio nary. &
WARNIN GRisk ofan acci dent from
ope rating mob ile comm unicati onequip ‐
ment while th eve hicle isin mo tion
Mobile communication sde vices distract the
dr iver from thetraf fic situ ation. Thiscou ld
al so cau sethedr iver tolose control of the
ve hicle. #
Asthedr iver ,onl yoper atemobile com‐
municat ionsdevices when theve hicle is
st atio nary. #
Asave hicle occupant, onlyuse mobile
communication sde vices inthear eas
int ended forth is pur pose, e.g.inthe
re ar passe nger com partment . Yo
umus tobse rveth eleg alrequ iremen tsforth e
cou ntryin whi chyouar ecur rentl ydr ivi ng when
op erati ng mob ile comm unicati onequip ment in
th eve hicle. &
WARNIN GRisk ofinju rydue toobject s
being stowe dinco rrect ly
If objects intheve hicle interior arestowe d
inc orrectly ,th ey can slide orbe throw n
ar oun dand hitvehicle occupants. Inaddi‐
tion, cupholder s,open stow agespac esand
mobi lephon ere cep tacle scanno tal wa ys
re tain all obje ctswit hin.
Ther eis arisk ofinjur y,par ticular lyin the
ev ent ofsudden braking orasudden chang e
in dir ect ion. #
Alw aysst ow object sso that they can‐
no tbe throw nar ou nd insuch situa‐
tions. #
Alw aysmak esur eth at obj ect sdo not
pr otru de from stow agespac es,parcel
ne ts or stow agene ts. #
Close theloc kable stow agespac es
bef orest ar tin gajo ur ne y. #
Alw aysst ow and securehea vy,har d,
poin ted, shar p-edg ed,fragile orbulky
objec tsinthetrunk/ cargocom part‐
ment . MBUX
multimedia system 24
1

Obser
vetheadditional information onstow ing
mobile communic ationsde vice scor rectly:
R Loa ding theve hicle (/page10 4)
Blue tooth®
connect ion:
The men uvie wand theav ailable function sin the
te lephon emen uar ein par tdepen dentonthe
Blu etoo th®
pr ofile ofthecon nect edmobile
phone. Fullfunc tionality isonl yav ailable ifth e
mobil ephone supports both ofthefo llo wing
Blue tooth®
pr ofiles:
R PBAP (Phone BookAccess Profile)
- The cont acts onthemobile phoneare
sho wnautomaticall yon themultimedia
sy stem.
R MAP (Messag eAc cess Profile)
- The mob ile pho nemess agefuncti onscan
be used on themultimedia system.
Ir re spectiv eof this, Blue tooth®
audio function al‐
ity can byused withan ymob ileradio unit.
Fo rinf ormation onthera ng eof func tions ofthe
mobil era dio unit tobe con nected, see theman‐
uf actur er'soper ating instruction s. Ne
tworkco nn ectio n:
The follo wing cases canlead tothecall being
discon nectedwhile theve hicle isin mo tion:
R Youswit chintoatransm ission /recep tion
st atio n,inwhic hno com mun ication chann el
is free.
R The SIM car dused isno tcom patible withth e
ne tworkav ailable
R Amobi lephon ewit h"T winc ard" islogg ed
int oth ene tworkwit hth esecon dSIM cardat
th esame time
The multimedia system suppor tscalls inHD
Vo ice ®
forim prov ed speec hqu alit y.Arequ ire‐
men tfo rth is isthat themobile phoneandthe
mobil ephone networkpr ov ider oftheper son
yo uar ecalli ngsuppo rtHD Voice ®
.
Depe ndingon thequ alit yof thecon nect ion,the
vo ice qualit yma yfluct uate.
Fu rther information canbeobt ained from an
aut hor ized Mercedes-Ben zCent eror at:
https: //www .mercedes-benz .com/connect 24
2
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

To
avo iddamag eto theve hicle, deactiv ate
th ese systems inthefo llo wing orsimilar sit‐
uation s: #
Dur ing towing #
Inacar wash *
NO
TEDama gedue touns uitable car
wa sh #
Beforedr iving intoacar wash mak e
sur eth at thecar wash issuit able for
th eve hicle dimensions. #
Ensur eth er eis suf ficie ntgrou nd clear‐
ance between theunderbody andthe
guide rails ofthecar wash. #
Ensur eth at theclear ance widthof the
car wash, inpar ticular thewidt hof the
guide rails, issuf ficie nt. To
avo iddamag eto your vehicle when usinga
car wash, ensur eth efo llo wing beforehand:
R Toavo idpossible wateringr ess intheve hi‐
cle, itis prefer able touse carwashes which
allo wthehigh-pr essurepr e-clean ingtobe deactiv
ated (specif ication forth econ vertible
pr ogr am).
R Avoid anyho t-w axtreatment .
R Remo vetheSmar tKey inorder toensur eth at
th ewind deflect oron thewindshield retracts .
R ActiveDis tance AssistDIS TRONI Cis de acti ‐
va ted.
R The HOLD function isswitc hedoff.
R The surround viewcam eraor there ar vie w
cam erais swit ched off.
R The side windo wsand softto par eclosed
com pletely.
R Theblowe rfo rth eve ntil ation/he ating is
sw itched off.
R The windsh ield wipe rsw itchis in po sitio n
005A.
R The Sma rtKe yis at amin imum distance of
10 ft(3 m) away from theve hicle. Other wise,
th etrunk lidcould openunintentionally .
R Forcar washes withacon veyo rsy stem: neu‐
tr al 005C iseng aged. %
Incar washes withacon veyo rsy stem: ifyo u
lea vetheve hicle while itis being washed,
mak esur eth eSmar tKey islocat edinthe
ve hicle. Theparkposition 005Disother wise
aut omaticall yeng aged.
% If,afte rth ecar wash, youre mo vethewa x
fr om thewindshield andwiper rubber s,this
will preve ntsme aring and reduce wiper
noise. No
teson using apo we rwa sher &
WARNIN GRisk ofan acci dent when
us ing powe rwa sher swit hro und -spr ay
nozzl es
The waterje tcan caus eex tern all yin visi ble
damag e.
Com ponentsdamag edinthis wa yma yune x‐
pec tedly fail. #
Donotuse apo we rwa sher withro und-
spra yno zzles. #
Have damag edtires orchassis parts
re placed immediat ely. Maint
enance andcare27
1

To
avo iddamag eto your vehicle, observethefo l‐
lo wing when usingapo we rwa sher :
R The Smar tKey isat amin imum distance of
10 ft(3 m) away from theve hicle. Other wise,
th etrunk lidcould openunintentionally .
R Maint ainadis tance ofat leas t11 .8 in
(30 cm) totheve hicle.
R Vehicl eswith decorativ efo il: par tsof your
ve hicle areco veredwit hadecor ativefo il.
Maint ainadis tance ofat leas t27 .6 in
(70 cm) between thefo il-c ove redpar tsof the
ve hicle andthenoz zleofthepo we rwa sher .
Mo vethepo we rwa sher nozzlearound whilst
cleaning. Thewaterte mp eratur eof the
po we rwa sher mustno tex ceed 140°F
(60°C ).
R Obse rveth einf ormation onthecor rect dis‐
tan ceintheim plement manufacturer'soper‐
ating instruction s.
R Donotdir ect thenoz zleofthepo we rwa sher
dir ectl yat sensitiv epar ts,e.g. tires, softto p,
wind deflect ornet,ga ps, elect rical com po‐
nents, batter ies, light sources and ventil ation
sl its. Wa
shing theve hicl eby hand *
NO
TEEngi nedama gedue towa ter
ing ress #
Take car eno tto point thewa terje t
dir ectly towa rdsth eair inle tgr ille belo w
th ehood. Obser
vetheleg alrequ iremen ts,e.g. inanumb er
of coun tries, washing byhand isonl yper mitt ed
in specially designatedwash bays. #
Use amild cleaning agent, e.g.carsham poo. #
Washtheve hicle withluk ewa rmwaterusi ng
a sof tcar spong e.When doingso,donot
ex pose theve hicle todirect sunlight . #
Carefully hosetheve hicle offwit hwa terand
dr yusi ng ach amois .
% Obse rveth eno teson thecar eof vehicle
par ts(/ page27 6). No
teson paint work/ma tte finish paint work
car e Obse
rveth eno teson cleaning andcareto avo id
damagin gth epaintw ork.
Pa int
R Insect remains: soakwithinsect remo verand
ri nse offth etreat edareas afte rw ards.
R Birddr oppin gs:soak withwa terand rinse off
af te rw ards.
R Tree resin, oils, fuels andgreases: remo veby
ru bbing gentl ywi th aclo thsoak edinpe tro‐
leum ether orlight erfluid.
R Coolan tand brak efluid: remo vewit hadam p
clo thand clean water.
R Tarst ains :use tarre mo ver.
R Wax:usesilicone remo ver.
R Donotatt achsticke rs,fi lms orsimilar mate‐
ri als.
R Remo vedirtimmediat ely,wher epossible.
Mat tefinish
R Onlyuse carepr oducts approvedfo r
Mer cedes-Ben z. 27
2
Maint enance andcare

#
Light dirt:clean wind deflect ornet1 with
a sof tbr ush oradam pclo th. #
Hea vier dirt:clean net1 withcar epr od‐
ucts andcleanin gag ent sre comme ndedand
ap prove dfo rMer cedes-Benz. #
Subse quent ly,ri nse with cle an water.
Cleani ngthewind screen
Re quirement s:
R The softto pis open.
R The elect ric pa rking brak ehas been applied.
R The ignit ionisswitc hedon. #
Pull button1.
The AIRCA Pwind screen movesupw ards. #
Clea nwind screen net1 withadam pclo th
in con junction withth ecar epr oducts and
cleanin gag ent sre comme ndedandapprov ed
fo rMer cedes-Benz. Cle
aning thefo lding windscreen Re
quirement s:
R Neveruse apo we rwa sher tocle an thene tof
th ewind deflect or.
R Obser vetheno teson thecor rect ins tallation
and stow ing locat ionofthefo lding wind
scr een (/page80). Maint
enanceand care27
5

Emer
gency Re
mo ving the safetyve st The
safetyve stsar elocat edinthestow agecom ‐
par tment sin thedr iver and front passeng er
door . #
Toremo ve:pu llou tsa fety vest bag byloop. #
Open thesaf etyve st bag and pulloutthe
saf etyve st. 1
Maximum numberofwa shes
2 Maximum wash temp eratur e
3 Donotbleac h
4 Donotiron 5
Donottumble dry
6 Donotdr yclean
7 Class 2saf etyve st
The requ iremen tsdef ined bytheleg alstandar d
ar eon lyfulfille d ifth esaf etyve st isthecor rect
size andisful lyclos ed.
The safetyve st mus tbe replaced inthefo llo wing
situat ions:
R The reflect ive st rips aredamag edordir ty
R The maximum permissible numberofwa shes
is exceed ed
R The fluor esc ence has faded Wa
rning triang le Re
mo ving the warning triang le #
Push both sides ofwa rning triang leholder
1 inthedir ect ion ofthear row and open it. #
Remo vewarning triang le2. Br
eakdo wnassis tance 27
9