ECU MERCEDES-BENZ A CLASS 2023 Repair Manual

#
Sele ctCon nect De vic eto Veh icleHo tspot.
Co nnec tingusing WPS PINg Co
nnec tingusing WPS PINgene r ene
rat ion at
ion #
Sele ctCon nect via WPS PINGeneration. #
EnterthePIN showninthemedia displayon
th ede vice tobe connect edand con/ rm.
Connecting usingWPSPINentry Connecting
usingWPSPINentry #
Select Connect viaWPS PINInput. #
EnterthePIN that issho wnontheex tern al
de vice 'sdispl ayon themultimedia system.
Connecting usingabutt Connecting
usingabutt on on
#
Select Connect viaWPS PBC. #
Press thepush buttononthede vice tobe
connect ed(see themanuf acturer'soper ating
inst ruction s). #
Select Continue .
Conn ectingusing asecur Conn
ectingusing asecur itykey ity
key #
Sele ctCon nect De vic eto Veh icleHo tspot.
A se cu rity keyis disp laye d. #
Select theve hicle from thede vice tobe con-
nect ed.The vehicle isdispl ayedwit hth e
DIR ECT -MBU XXXX XXnetworkname . #
Enterthesecur itykeywhic his sho wninthe
media displayon thede vice tobe connect ed. #
Con/r mtheentr y.
Connecting usingNFC Connecting
usingNFC #
Select Connect viaNFC. #
ActivateNFC onthemobile device (see the
manuf acturer'soper ating instruction s). #
Hold thede vice tobe connect edattheve hi-
cle's NFCinterface. #
Select Finis hed.
The mobile device isno wconn ectedtothe
multimed iasystem hotspo tvia NFC.
Gener Gener
atingane ating
ane wsecur w
secur itykey ity
key #
Sele ctVeh icleHo tspot . #
Sele ctGen erateSe cur ity Key .
A co nnec tionwi llbe establishe dwi th the
ne wly creat edsecur itykey. #
T T
o sa v o
sa ve asecur e
asecur itykey ity
key: :
sele ctSave.
When ane wsec urity keyis saved, all existin g
Wi -Ficonnec tionsareth en disconnect ed.If
th eWi -Ficonnec tionsarebeing re-est ab-
lish ed, thene wsecur itykeymus tbe entere d. Sy
st Sy
stem languag e em
languag e NNo o
t t
es on t es
on the syst he
system languag e em
languag e
This function allowsyouto determ ine thelan-
guag efo rth emenu displaysand thena vig ation
announcements. Theselect edlanguag ea.ect s
th ech aract ersav ailabl efo rentr y.The navig ation
anno uncements areno tav ailabl ein all lang uages.
If alang uageis no tav ailabl e,thena vig ation
announcements willbeinEnglish.
Se Se
tting t tting
the syst he
system languag e em
languag e
Multimedia system:
4 © 5
Settings 5
System
5 00A7 Langua ge #
Setth elanguag e. 224224
MBUX
multimedia system

#
Alwayske ep aneyeon theactual tra1c
situation whencarrying out alldriving
maneuv ers. SwitcSwitc
hingna hing
navig vig
ation on ation
on Multimedia
system:
4 © 5
Naviga tion(Navigation) #
Alternativ ely: press thez button.
The map displa ysthecur rent vehicle position.
The navig ation menuis sho wn.
The navig ation menuis hidden ifro uteguid-
ance isactiv e. #
T T
o sho w o
sho w: :
ta pon theto uc hscr een.
The menu ishidden automatical ly. 226226
MBUX
multimedia system

Sele
cting mapor Sele
cting mapor ien t ien
tat ion at
ion #
Tapre peat edlyon theÄ compass symbol
on themap.
The viewch ang esintheseq uence 3D,2D
Headi ngUp to2D North Up.
Switc Switc
hinghighw a hing
highw ay inf y
inf or or
mation mation
on/o. on/o.
#
Sele ctZ. #
Activateor deac tivateHighway Information . Usi
ngser Usi
ngser vices vices
RR
eq eq
uir uir
ements : ements
:
R Ther eis an Interne tconnec tion.
R Mer cede sme connec tis availabl e.
R Youha ve setup auser accoun tin the
Mercede sme Portal.
R The vehicle isconn ectedtoauser accoun t
and youha ve accep tedth econditions ofuse
fo rth eser vice.
Fu rther informatio ncan befound at:https://
www .mercedes.me
R The service isavailabl e. R
The service hasbeen activated atan aut hor -
ize dMer cedes- BenzCen ter.
R The follo wing additional conditions applyto
th ePa rking service:
- The navig ation services option isavailabl e,
subscr ibedtoand activ ated inthe
Mercede sme Portal.
- The Parking service iswit hin thescope of
th eNa vigatio nSer vice s.
Multim ediasystem:
4 © 5
Navigat ion
Dis pla Dis
playing t ying
the he
tr tr
a1 c a1
csitu ation wi t si
tu ation wi th Liv h
Live e
Tr Tr
a1c a1c
Inf Inf
or or
matio n matio
n #
Select Z. #
ActivateTraffic . #
Select Advanced. #
Select View. #
Select MapElemen ts. #
Switc hon Traffic Incidents, FreeFlowing Traf-
fic and Delay.
If tra1c informati onhas been receiv ed,then
tr a1c incidents suchas roadw orks ,ro ad
bloc ks,local area repor ts(e.g. fog) and warn-
ing messa gesar edispla yed.
The tra1c delayis displa yedfo rth ecur rent
ro ute. Tra1c delayslasting oneminut eor lon-
ge rar eta ke nint ocons ideration.
Dis pla Dis
playing hazar ying
hazar dw d
war ar
nings wit nings
withCar h
Car -t -t
o-X o-X
-Com mu- -Com
mu-
nica tion nica
tion
If ha zar dwa rnings areav ailabl eth ese can be
sho wnassymbols onthemap. Thedispla y
depends onthese tting sfo rth eTraffic andTraf-
fic Incidents options. #
Setth eop tions.
If Traffic isswitc hedo.and Traffic Incidents
is switc hedon,thesymbols aresho wnonthe
pr ospectiv ero ute.
Displa Displa
yingw ying
weat eat
her inf her
infor or
mation andot mation
andother map her
map
cont cont
ents ent
s #
Select Z. #
Select Adva nced. 232232
MB
UX mult imedi asy stem

A
repor tma yappear inthefo llo wing cases :
R Forth eIndividu alRecordi ngrecor ding mode:
th ememor yis full orther ear eonl ya few
minut esrecor ding time availabl e.The video
re cor ding stops orwill bestopped imminently.
Chang eth eUSB device ordele teavid eo /le.
R Ifavid eo recor ding hasstar tedand anational
bor der isde tected, theNational Border
Crossed .Plea seobserve thecountry-spe-
cific regul ations onvideo recording. message
appear s.
This function isno tav ailabl ein all coun tries.
R The camer ais no tfu nct ional,theCame ra
Unavail ablemessag eappear s.
Ha ve thecamer ach eckedin an aut hor ized
Mer cedes-Benz Center. TT
elephone elephone
TT
elephon y elephon
y NNo o
t t
es on t es
on telephon y elephon
y &
W W
ARNIN G ARNIN
GRisk ofdist raction from oper at-
ing integratedcommunication equipment
while theve hicle isin mo tion
If yo uoper atecommunica tionequipment inte-
gr ated intheve hicle when drivi ng ,yo ucould
be distr acted from thetra1c situation. This
could alsocause youto lose contr olof the
ve hicle. #
Onlyoper ateth is eq uipment whenthe
tr a1 csitu ation pe rm its. #
Ifyo ucanno tbe sureof this, stop the
ve hicle whilstpa ying attent ion toroad
and tra1c cond itions and oper ateth e
eq uipment withth eve hicle station ary. &
W W
ARNI NG ARNI
NGRisk ofan accid ent from oper-
atin gmobil ecommun icationequipme nt
while theve hicle isin mo tion
Mobi lecommun ications device sdis tract the
dr iver from thetra1c situation. Thiscould also
cause thedr iver tolose contr olof theve hicle. #
Asthedr iver ,onl yoper atemobile com-
munications devices when theve hicle is
st ation ary. #
Asave hicle occupan t,onl yuse mobil e
commun ications device sin thear eas
int ended forth is pur pose, e.g.inthere ar
passen gercom partment. Yo
umust obser vetheleg alrequ irements forth e
count ryinwhic hyo uar ecur rentl ydr iving when
ope rating mobi lecom munic ationequipme ntin
th eve hicle. &
W W
AR NIN G AR
NIN GRisk ofinjurydue toobjects
being stowe dincor rectl y
If obje ctsintheve hicle interior arestowe d
incor rectl y,they can slide orbe thro wn aroun d MB
UX mult imedi asy stem
235 235

and
hitvehicle occupan ts.Inaddit ion,cup
holder s,open stow agespaces andmobil e
phon ere cep tacles canno talw aysre tain all
objects within.
Ther eis arisk ofinjury, par ticular lyin the
eve ntofsud den brak ing orasud den chang e
in dir ecti on. #
Alwaysst ow objects sothat they canno t
be thro wn aroun din suc hsitu ation s. #
Alwaysmak esur eth at obj ects donot
pr otru de from stow agespaces, parcel
ne ts or stow agene ts. #
Close theloc kable stow agespaces
bef orestar tin gajou rney . #
Alwaysst ow and secur ehea vy,har d,
poin ted, shar p-edg ed,fragile orbulky
objects inthetrunk/car gocom part-
ment. Obser
vetheadditional information onstow ing
mobile communications devices correctl y:
R Loading theve hicle (/page100) R
Stow ing and secur ingthemobile phone
(/ page109)
Blue t Blue
too th oo
th® ®
conn ection: conn
ection:
The menu viewand theav ailabl efu nct ionsin the
te lephone menuarein par tdependent onthe
Blue toot h®
pro/le oftheconnect edmobile
phone. Fullfunctionality isonl yav ailabl eif th e
mobile phonesuppor tsbo th ofthefo llo wing Blue-
to ot h®
pro/les:
R PBAP (Phone BookAccess Pro/le)
- The cont acts onthemobile phoneare
sho wnautomaticall yon themultimedia
sy stem.
R MAP (Messag eAc cess Pro/le)
- The mobile phonemessag efun ction scan
be used onthemultimedia system.
Ir re specti veofthis, Blue toot h®
audio funct ionality
can byused withan ymobile radio unit.
Fo rinf ormation onthera ng eof functi onsofthe
mobile radio unit tobe connect ed,see themanu-
fa ctur er's oper atingins tructio ns.
Ne Ne
tw tw
or or
kconnec tion: k
connec tion: The
follo wing cases canlead tothecall being dis-
connect edwhile theve hicle isin mo tion :
R Youswitc hint oatransmiss ion/receptionsta-
tion, inwhic hno communica tionchann elis
fr ee.
R The SIM cardused isno tcom patiblewithth e
ne tworkav ailabl e
R Amobil ephon ewit h"Twinc ard" islog gedint o
th ene tworkwit hth esecond SIMcardat the
same time
The mult imedi asy stem suppor tscalls inHD
Vo ice ®
forim prov ed speec hqu alit y.Arequ ire-
ment forth is isthat themobile phoneandthe
mobile phonenetworkpr ov ider oftheper son you
ar ecalli ngsuppor tHD Voice ®
.
Depending onthequ alit yof theconnection, the
vo ice qualit yma y0uctuat e.
Fu rther informatio ncan beobt aine dfrom an
aut hor izedMer cedes- BenzCen teror at: https://
www .mer<00440046004500460054000E00430046004F005B000F00440050004E00100044
0050004F004F004600440055> 236236
MBUX
multimedia system

TT
elephone menuov elephone
menuover er
vie w vie
w 1
Blue toot h®
de vice name ofthecur rentl ycon-
nect edmob ilepho ne/of themobile phone
2 Blue toot h®
de vice name ofthecur rentl ycon-
nect edmob ilepho ne/of themobile phone
(tw ophone mode)
3 Batteryst atus oftheconnect edmobile phone
4 Sign alstr engt hof themobile phonenetwork
5 Options 6
Device manag er
7 Messag es
8 Numer icalpad
9 Cont actsear ch T T
elephon elephon
yoper y
oper ating modes ov atin
gmodes over er
vie w vie
w
Depending onyour equipment, thefo llo wing tel-
ephon yoper ating modes areav ailabl e:
R Amobil ephon eis conn ectedtothemultime-
dia system viaBlue toot h®
. MBUX
multimediasystem
237 237

R
Twomobile phones areconnect edwithth e
multimed iasystem viaBlue toot h®
(tw ophon e
mode ).
- Youcan useallthefunction sof themulti-
media system withth emobile phoneinthe
fo re ground.
- Youcan receiv eincomi ngcalls andmes-
sag eswithth emobile phoneinthebac k-
gr ound.
Yo ucan interch ang eth emobile phonein
th efo re ground andbackground.
Connecting amobile phone Connecting
amobile phone
R R
eq eq
uir uir
ements: ements:
R Blue toot h®
is activ ated on themobile phone
(see themanuf acturer'soper ating instruc-
tion s).
R Bluetoo th®
is activ ated on themultimedia sys-
te m. Mult
imedia system:
4 © 5
Phone
Sear c Sear
ching f hing
for amobile phone or
amobile phone #
Sele ctí. #
Sele ctConnect NewDevice .
Conn ecting amobile phone Conn
ecting amobile phone
Au thor ization follo ws using securesim ple pair ing. #
Select amobile phone.
A code isdispla yedin themultimedia system
and onthemobile phone. #
Ifbo th codes match,con/r mthecode onthe
mobile phone.
F F
uncti onsint uncti
onsinthe t he
telephon elephon
ymenu y
menu
In thete lephon ymenu youha ve thefo llo wing
functions, forex am ple:
R Makin gcalls, e.g.:
- R Accep ta call
- k EndCall
- i Create Confer. Call
- Accep tingor rejec ting awa iting call R
Managing contacts, e.g.:
- Downloading mobilephonecontacts
- Managing thefo rm atof acont act's name
- Savin gacont actasafa vo rite
R Receivi ngand sendi ngmessag es,e.g.:
- Using there ad-al oudfunct ion
- Dict atingane wmessag e 238238
MB
UX mult imedi asy stem

%
Ifyo uselect LateraTertheser vice messag e
appear s,themessag eis hidden andreap-
pear sat alat er time .
T T
r r
ansf ansf
err er
red dat ed
dat adur a
dur ing aMer ing
aMer cedes mecall cedes
mecall
When youmak easer vice callviaMer cedes me,
dat ais transmitt ed.This enables targ eted advice
and asmoo thser vice .
The follo wing requ irements mustbeful/lled for
th etransf erofthedat a:
R The vehicle isswitc hedon.
R The requ ired data transf ertech nolo gyissup -
por tedby themobile phonenetworkpr ov ider .
R The qualit yof themobile connection issu1-
cient .
Multi-s tage transf erdepe ndsonthefo llo wing fac-
to rs:
R Reason forth einitiation ofthecall
R The availabl emobil ephon etransmi ssiontech -
nolo gy.
R The activated Mer cedesme conne ctser vice s.
R The service select edinthevo ice contr olsys-
te m. Dat Dat
atr a
transf ansf
erifMer er
ifMer cedes meconnect ser cedes
meconnect services vices
ar ar
eno e
no tactiv t
activ at at
ed ed
If no Mer cedes meconnect services areactiv a-
te d, thefo llo wing datais transf erred:
R Vehicle identi/cation number
R Time ofthecall
R Reason forth einitiation ofthecall
R Countr yindicat oroftheve hicle
R Setlang uagefo rth emultimedia system
R Telephone numberofthecommunication plat-
fo rm inst alled intheve hicle
If acall ismade fora ser vice appointment viathe
ser vice reminder ,th efo llo wing datais also trans-
mitt ed:
R Current mile ageand maintenanc edat a
If aca llis ma de aTer aut oma ticaccid ent orbreak -
do wn detection using themultimedia system, the
fo llo wing datais also transmitt ed:
R Current mile ageand maintenanc edat a
R Current vehicle location If
Ac ciden tand Breakdo wnManag ementis called
via thevo ice contr olsystem, thefo llo wing data
can also becalled upfrom theve hicle bythe
Mer cedes-Be nzcust ome rcent er:
R Current vehicle location
Dat Dat
atr a
transf ansf
erifMer er
ifMer cedes meconn ectser cedes
meconn ectservice s vice
s
ar ar
eactiv e
activ at at
ed ed
An ove rview of thedat atransmitt edcan befound
in there specti veterm sof use forMer cedes me
connect services. These canbeobt ained inthe
Mer cedesme portal:https://
me.secur e.mercedes-benz.com
Dat Dat
apr a
pr ocess ing ocess
ing
The datatransmitt edwithin thescope ofthecall
is dele tedfrom thepr ocessing system aTer the
call is/nished, inso faras this dat ais no tbeing
used forot her activ ated Mer cedes meconn ect
ser vice s.
The incident-speci/c datais processed andstor ed
in theMer cedes-Benz customer centerand, if
re qu ired toprocess theincident, forw arded tothe
ser vice partner aut hor izedby theMer cedes-Benz
cust omer center.Please take note of thedat apr o-
te ction information ontheMer cedes meInterne t MBUX
multimedia system
241 241

pag
ehttps:// www.mercedes.me orinthere cor -
ded messag eimmedi atelyaTer callingth e
Mer cedes-Be nzcust ome rcent er.
% The recor ded messag eis no tav ailabl ein
ev erycountr y. MerMer
cedesme conne ct ced
esme conne ct InfInf
or or
ma tion onMer ma
tion onMer cedesme conne ct ced
esme conne ct
Mer cedesme conne ctcons istsofmul tipleser v-
ices.
Yo ucan usethefo llo wing services viathemulti-
media system and theove rhead contr olpanel, for
ex am ple:
R Acciden tand Breakdo wnManag ement(me
butt onorsituat ion-depen dentdispla yin the
multimed iasystem)
R Mer cedes-Be nzemer gency callsy stem (aut o-
ma tic eme rgency calland SOS button)
The Mercedes meconnect Acciden tand Break -
do wn Manag ementand theMer cedes-Benz emer-
ge ncy callcent erareav ailabl eto youar ound the
cloc k. The
mebutt onand theSOS buttoncan befound
on theve hicle' sove rhead contr olpanel
(/ page239).
Yo ucan also calltheMer cedes-Benz customer
cent erusing themultimedia system
(/ page239).
Please note that Mer cedes meconn ectisa
Mer cedes- Benzser vice .In emer gencie s,/rst call
th enational emergency service susi ng thestand-
ar dnational emergency service telephone num-
ber s.In emer gencie s,youcan also usethe
Mer cedes-Be nzeme rgency callsystem
(/ page246).
Obser vetheconditions ofuse forMer cedes me
connect andother service s.These canbe
obt aine din theMer cedes mePortal: http s://
me.se cure.me rcedes-benz.com
Fu rther informatio nabout Mercedes meconn ect
ser vice scan beobt aine din theMer cedes mePor-
ta l:https://me.secur e.mercedes-benz.com Inf Inf
or or
mation onMer mation
onMer cedes meconnect A cedes
meconnect Accident ccident
and Br and
Breakdo eakdo
wnManag wn
Manag ement ement
The Acciden tand Breakdo wnManag ementcan
incl ude thefo llo wing functions:
R Supplement totheMer cedes-Benz emergency
ca llsy stem (/ page246)
If nece ssary, thecont actperson atthe
Mer cedes-Be nzeme rgency callcent erfor-
wa rdsth ecall toMer cedesme conne ctAcci-
dent andBreakdo wnMan agemen t.Fo rw ard-
ing thecall isho wev ernotpossible inall coun-
tr ies.
R Breakdo wnassist ancebyate ch nici anon
loc atio nand/o rth eto wing awayof theve hicle
to thenear estauthor ized Mercedes-Benz Cen-
te r
Yo uma ybe charge dfo rth ese services.
R Addition totheemer gency guide aTer aut o-
ma tic accid ent orbreak down detection
(/ page240)
In theev ent ofabr eakdo wnoraccident, fur-
th er vehicle datais sent whichenab lesoptimal
suppor tby theMer cedes-Benz customer cen- 242242
MBUX
multimedia system

te
rand theaut hor ized service partner or
br eakdo wnassist ance.
R Addition totheMer cedes meconnect service
Te lediagnostics
Wi th theTe lediagnostics function,speci/c
we arand failur ere por tsarere cor ded bythe
ser vice prov ider ,in so faras these can be
clear lyint erpr eted and areav ailabl eth ro ugh
th emonit oring ofcom ponents that aresubj ect
to diagnos tics.
If yo ur vehicle detects abr eakdo wnorthre at
of abr eakdo wn,youma ybe prom pted via the
multimed iasystem tocont acttheMer cedes-
Benz customer centerforfur ther help. This
pr om ptinthemultimedia system onlyappear s
when theve hicle isstation ary.
% Thes eser vice sar esub ject totech nica l
re str iction ssu ch asthemobile phonecover-
ag e, mobil ene tworkqu alit yand theability of
th epr ocessing systems tointerpr et thetrans-
fe rred dat a.In some circumst ances, this can re
sult indela ysorthefa ilur eof theinf orma-
tion toappear inthemultimedia system.
Mor einf ormation aboutMercedes meconnect
ser vices canbeobt ained intheMer cedes mePor-
ta l:https://me.secur e.mercedes-benz.com
Dat Dat
atr a
transf ansf
err er
red dur ed
dur ing Mer ing
Mer cedes meconnect cedes
meconnect
call ser call
services vices
The datatransf erreddur ing aMer cedes mecon-
nect calldepends on:
R The reason forinitiation ofthecall
R The service that isselect edinthevo ice con-
tr ol system
R The activ ated Mer cedes meconnect services
Yo ucan /ndout whic hdat ais transf erredwhen
using theser vices inthecur rentl yva lid Mer cedes
me connect term sof use and thedat apr otection
inf ormation forMer cedes meconnect. Youcan
/n dth ese inyour Mer cedes meuser account. OvOv
er er
vie vie
wof t w
of the Mer he
Mer cedes me&Apps menu cedes
me&Apps menu When
youlog inwit hauser account tothe
Mer cedesme Portal, then ser vices ando.er s
fr om Mer cedes-Benz willbeavailabl eto you.
Fo rmor einf ormation consult anaut hor ized
Mer cedes-Benz Centeror visit theMer cedes me
por tal:https://me.secur e.mercedes-benz.com
% Mak esur eyo ualw ayske ep theMer cedes me
apps updat ed.
Yo ucan callupthemenu usingMercedes me&
Apps inthemultimedia system.
In theMercedes me&Apps menu, thefo llo wing
op tions canbeavailabl e:
R Con nect ingtheve hicle withth eMercedes me
user account
R Dele tingaconnection between aMercedes
me user account andtheve hicle
R Calli ngup theMer cedes meservices
R Calling upapps suchas, In-Car O1ceorthe
we bbr ow ser depen dingon availabi lity MB
UX mult imedi asy stem
243 243