key MERCEDES-BENZ A CLASS 2023 Owner's Guide

#
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

*
N N
O O
TE TE
Dam agefrom automa ticbrak ing If
one ofthefo llo wing functions isswitc hed
on, theve hicle brak es aut omati callyin cer tain
situations:
R ActiveBr ak eAssi st
R ActiveDist ance AssistDIS TRONI C
R HOLD function
R ActivePa rking Assist
To avoid damag eto theve hicle, deactivat e
th ese systems inthefo llo wing orsimilar situa-
tions: #
Duringtowing #
Inacar wash *
N NO O
TE TE
Damag edue tounsuit ablecarwash #
Beforedr ivi ng intoacar wash mak esur e
th at thecar wash issuit able forth eve hi-
cle dimen sions. #
Ensu rether eis su1cien tgr ound clear-
ance between theunderbody andthe
guide rails ofthecar wash. #
Ensur eth at theclear ance widthof the
car wash, inpar ticu larthewidt hof the
guide rails, issu1cien t. To
avo iddamag eto your vehicle when usingacar
wa sh, ensu rethefo llo wing beforehand:
R ActiveDist ance AssistDIS TRONI Cis dea ctiva-
te d.
R The HOLD function isswitc hedo..
R The surround viewcamer aor there ar vie w
camer ais switc hedo..
R The side windowsand slidingsunr oofarecom-
ple tely closed.
R The blowerfo rth eve ntila tion andheating is
sw itched o..
R The wind shield wipersw itchis in pos ition005A.
R The Smar tKey isat aminimum distance of
10 T(3 m) away from theve hicle. Other wise,
th etrunk lidcould openunintentionall y.
R Forcar washes withacon veyo rsy stem: -
neutr al005C iseng aged.
- F F
or v or
vehicles wit ehicles
withaut h
aut omatic tr omatic
transmission: ansmission:
If yo ulea vetheve hicle while itis bein g
wa shed, makesur eth eSmar tKey isloca-
te din theve hicle. Theparkposit ion005Dis
ot her wise automati callyeng aged.
% If,aTer thecar wash, youre mo vethewa x
fr om thewindshield andwiper rubber s,this
will prev ent smear ingand reduce wiper noise.
A A
ut ut
omatic carw omatic
carwash mode ash
mode
In car wash mode, theve hicle isprepar edfordr iv-
ing intoth eaut omatic carwash. Car wash mode
can beactiv ated ataspeed ofup to12 mph
(20 km/h )Ac tivate(/ page266) .
The follo wing settings aremade whencarwash
mode isactiv ated:
R The outsi demir rors arefo lded in.
R Toprev ent thewindshield washer system from
st ar tin gup aut omati cally,thera in sensor is
deactiv ated.
R The rear wind owwiper isdeacti vated.
R The aircondition ingsystem isse tto air-recir -
culat ionmode. Main
tenanc eand care
265 265

R
Parking Assist PARK TRON ICisdea ctivated.
R V V
ehi cleswit ehi
cleswit hsur r h
sur round vie ound
viewca mer w
ca mer a: a:
The front
ima geisactiv ated aTer approx.eight seconds.
If one ofthese tting scanno tbe select ed,this is
displa yedby a% behindth ere specti veset-
tin g.
Ab ove aspeed of12 mph(2 0km /h)ca rwa sh
mode isaut omati callydeacti vated.
The follo wing settings arere se twhen carwash
mode isdeacti vated:
R The outside mirrors arefo lded out.
R The rain sensor isactiv ated.
R The rear wind owwiper isactiv ated.
R The aircondi tioningsystem isse tto fres hair
mo de.
R Parking Assist PARK TRON ICisrese tto the
pr ev iousl yselect edsetting.
R V V
ehicles wit ehicles
withsur r h
sur round vie ound
viewcamer w
camer a: a:
The front
imag eis deactiv ated atspeeds above11 mph
(18 km/h ). AA
ctiv ctiv
atin g/deactiv atin
g/deactiv atingaut atin
gaut omatic carw omatic
carwash mode ash
mode RR
eq eq
uir uir
emen ts: emen
ts:
R The vehicle isstation ary.
R The engine isrunning.
Multim ediasystem:
4 © 5
Set tings 5
Quick Access
A A
ctiv ctiv
ating aut ating
automa ticcarw oma
ticcarw as hmod e as
hmod e #
Selec tAut omat icCar Wash Mode. #
Selec tSt art.
If one ofthese tting scanno tbe select ed,this is
displa yedby a% behindth ere specti veset-
tin g.
% Foran overvie wof these tting smade when
activ ating automatic carwash mode
(/ page264).
Deacti v Deacti
vatin gaut atin
gaut omati ccar w omati
ccar wash mode ash
mode #
Select Stop.
The automati ccar wash setting sar ere se t. %
The automati ccar wash mode isaut omati cally
deacti vatedas soon asaspeed of12 mph
(20 km/h )is exceeded. NNo o
t t
es on using apo w es
on using apo wer w er
washer asher
&
W W
AR NIN G AR
NIN GRisk ofan acciden twhen using
po we rwa sher swit hro und-spr aynozzles
The waterje tcan cause extern all yin visi ble
damag e.
Com ponentsdamag edinthis wa yma yun ex-
pect edlyfa il. #
Donotuse apo we rwa sher withro und-
spr aynozzles . #
Have damag edtires orchassis parts
re placed immediat ely. To
avo iddamag eto your vehicle, observethefo l-
lo wing when usingapo we rwa sher :
R The Smar tKey isat aminimum distance of
10 T(3 m) awa yfrom theve hicle. Other wise,
th etrunk lidcould openunintentionall y. 266266
Maint
enance andcare

Sma
r Sma
rtK ey tK
ey DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons
Á
Obtain aNew Key *H
aveth eSmar tKey replaced. #
Consult aqua li/ed specialist workshop.
Á
Re place Key Batte ry *T
heSmar tKey batt eryis disc harged. #
Replace thebatt ery(/ page68).
Á Key NotDetected (white
displa ymessag e) *T
heSmar tKey iscur rentl yunde tected. #
Chang eth elocation oftheSmar tKey intheve hicle. #
Ifth eSmar tKey isstill notre cogn ized,place itin themar kedspace forst ar ting withth eSmar tKey (/ pag e129). Displa
ymessag esand warning/in dicatorlam ps
341 341

DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons
Á
Key NotDetected (red dis-
pla ymessag e) *T
heSmar tKey canno tbe detected and mayno long erbe intheve hicle.
The Smar tKey isno long erintheve hicle andyouswitc ho. theve hicle:
R Youcan nolong erstar tth eve hicle.
R Youcanno tcentr allyloc kth eve hicle. #
Ensu rethat theSmar tKey isin theve hicle.
If th eSmar tKey detection function hasamalfu nctiondue toast ro ng radio signal source: #
Stop theve hicle immed iatelyin accor dance withth etra1c conditions. #
Place theSmar tKey inthemar kedspace forst ar ting theengine withth eSmar tKey (/ pag e129).
Á
Don't Forget YourKey *A
warning tone willals osou nd. This message reminds youto take your Smar tKey withyo uwhen youlea vetheve hicle.
Á
Key BeingIniti alize dPlea se
Wa it *T
hevehicle isprocessin gin order toteac hin thene wSmar tKey . #
Waituntil process ingiscom plete. 342342
Displa
ymessa gesand warning/in dicatorlam ps

DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons
Pla cethe Key inthe
Marked SpaceSeeOpera -
tor's Manua l *S
mar tKey detection ismalfu nctionin g. #
Chang eth elocation oftheSmar tKey intheve hicle. #
Place theSmar tKey inthemar kedspace forst ar ting theengine withth eSmar tKey (/ pag e129). LightsLights
DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Solut ions Solut
ions
:
Check LeftLow
Beam (exa mp le) *T
hecor respond inglight sour ceisdef ecti ve. #
Drive on car efull y. #
Visit aqu ali/ed special istwo rkshop immed iately.
% LED light sources: thedispla ymessag efo rth ecor respond inglight appear sonl ywhen allthelight-emittin gdiodes
in thelight arefa ulty .
: Malfu nction See Opera-
tor’s Manual *T
heexterior lightin gis malfunct ioning. #
Consult aquali/ edspecialist workshop. Displ
aymessag esand warning/in dicatorlam ps
343 343

VV
ehicle ehicle
DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Solution s Solution
s
0072
Vehicle ReadytoDrive
Switch theIgnition Off
Before Exiting *Y
ouarelea ving theve hicle inare ady -to-dr ive stat e. #
Getout oftheve hicle, secureit ag ains tro lling awayand take theSmar tKey wit hyo u. #
Ifyo udo notlea vetheve hicle, switcho. theelectr icalconsumer s,e.g. theseat heating. Other wise, the12‑ Vbat-
te ry ma ydisc hargeand star tin gth eengine maybe possible onlywit hth ehelp ofasecond battery(jum pstar t).
Head-up DisplayCurre ntly
Unavail ableSee Operator's
Manua l *T
heHead -upDispl ayistemp orarily una vailable. Possible causes:
R Malf unct ionsin thepo we rsuppl y
R Sign alint erfere nce #
Stop inaccor dance withth etra1c conditions andswitc hth eve hicle o.and onagain. #
Ifth edispla ymessag estill appear s,consult aqu ali/ed special istwo rkshop.
Hea d-upDisp layInop era-
tive *T
heHead -upDispl ayhas aninternal erro r. #
Consult aqua li/ed specialist workshop. 346346
Displ
aymessag esand warning/in dicatorlam ps

No
tes(st artin gassis tance and charg-
ing )........................................................ 281
Bel t Bel
t
see Seatbelt
Bli nd Spo Bli
nd Spot Assis t t
Assis t
Ac tivating/dea ctivating <000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F> 187
Fu nctio n........... ..................................... 184
Sy stem limita<0055004A0050004F0054000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F> 184
Blo w Blo
wer er
see Clima tecont rol
Br Br
ak ak
eAss is e
Ass istSyst t
Sy stem em
se eBAS (BrakeAss istSystem)
Br Br
ak ak
e e
0u id 0u
id
No tes... .................................................. 332
Br Br
ak ak
ef e
for orce
dis ce
distr tr
ib ut ion ib
ut ion
EB D(elect ro nic brak efo rc edistr ibu-
tion).... ...................................................1 59
Br Br
ak ak
epad g epad
gaug e aug
e........ ................................... 264
Br Br
ak ak
es es
ABS (Anti-loc kBr aking System).......... ....157
Ac tiveBr ak eAssi st<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F> 175
BAS (BrakeAssi stSystem) .....................1 57
Br eaking-in notes... ................................ 131 Chec
kingthebr ak epad thickness ........... 264
Dr iving tips...... ......................................132
EBD (electr onicbrak efo rc edistr ibu-
tion).... .................... ...............................1 59
HOLD function....... ................................159
Limit edbraking e.ect (salt-tr eated
ro ads) ..................... ...............................1 32
Ne w/r eplaced brak elin ing s/br ake
discs ...................................................... 131
Po st-c ollisi on brak e.<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F> 51
Br Br
aki ng ass ist aki
ng ass istance ance
see BAS (BrakeAssi stSystem)
Br Br
eakdo eakdo
wn wn
Assi stance overview. <000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F> 18
Cha nging awhe <0046004D000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F> 316
Ro adside Assista<004F00440046000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F> .............25
To w- star ting. ......... ................................. 288
To wing away.......................................... 285
Tr anspo rting theve hicle .........................2 87
Br Br
eakdo eakdo
wn wn
see Flat tire
Br Br
eaking-in not eaking-in
notes es
....... ..................... ............. 131
Butt Butt
ons ons
St eer ing wheel....... ................................207 CC
Calls Calls
Mercedes me......................................... 239
Camer a Camer
a
Inf ormation..... ....................................... 155
Camer a Camer
a
see 360° Camer a
see Dashc am
see Rear vie wcamer a
Car key Car
key
see Smar tKey
Car w Car
wash ash
see Care
Car w Car
wash (car ash
(care) e)
...... ......................................264
Car Car
-t -t
o-X o-X
-Communication -Communication
Displa yinghazar dwa rnings ....................232
Car e Car
e
Air -water duct....... ................................. 264
Au tomatic carwash...............................2 64
Car pet...... .............. ...............................270
Decor ativefo il...... .................................. 268
Displa y......... .......................................... 270
Ext erior lighting ......................................269 404404
Inde
x

0077
CheckTire s<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F> 380
00B2 CheckWa sher Fluid... ...................3 49
ÿ Coolant TooHo tSt op Vehicle
Tu rn Engi neO... ...... .............................. 351
0025 Currentl yUna vailable SeeOper -
at or's Manual. ............ ............................ 372
00E5 Currentl yUna vailable SeeOper -
at or's Manual. ........................................ 373
Á Don't Forget Your Key<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F> 342
00B3 Engine OilLevelCanno tBe
Measur ed........ ......................................385
00B3 Engine OilLevelLo wStop Vehi-
cle Turn Engi neO... ...............................3 84
00B3 Engine OilPressur eSt op Switc h
O. Engin e....... ....................................... 385
00B3 EngineOil Reduce OilLevel........... 384
0075 Front LeT Malfu nction Service
Re quired (examp le)...... ..........................338
00D4 FuelLevelLo w... ...... ..................... 352
00D4 GasCap Loose ............................. 352 0025
Inoper ativeSee Oper ator's
Manual....... ...........................................3 73
00E5 Inoper ativeSee Oper ator's
Manual....... ...........................................374
007A Inoper ativeSee Oper ator's
Manual....... ...........................................375
0053 Inoper ative....... ..................... ....... 376
: Intell. Light System Inoper ative..... 345
Á KeyBe ing Ini tia lized Please Wait.... 342
Á KeyNo tDe tected (red displa y
messag e)...............................................3 42
Á KeyNo tDe tected (whit edispla y
messag e)...............................................3 41
0075 LeTSide Curtain Airbag Mal-
function Service Required (exa mp le).... ..338
ä Malfunction Drive at Max. 50
mp h<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F> 371
: Malfunctio nSee Oper ator ’s
Manua l................. .................................343
Á ObtainaNe wKe y<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F> 341ç
O.<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F> 364
00D9 O.<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F> 362
0049 Parking Brak eSee Oper ator's
Manual....... ...........................................3 57
0077 Please Correct Tire Press ure........ .381
0049 Please Release Parking Brak e...... ..360
Á Replace KeyBat tery <000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F> 341
003D SeeOper ator's Manual<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F> 377
0075 SRSMalfunctio nSer vice
Re quired....... ......................................... 338
Ù Steer ing Malfunction Increased
Ph ysical E.or tSee Oper ator's Manual. ...347
Ù Steer ing Malfunction SeeOper -
at or's Manual .........................................3 47
Ù Steer ing Malfunction Stop
Immediat elySee Oper ator's Manual ....... 347
003D Stop Vehicle LeaveEngi neRun-
ning .......... .............................................379
003D Stop Vehicle SeeOper ator's
Man ual...................... ............................3 78 408408
Inde
x

Decr
ease Speed ........ ............................ 382
De vice Detected atDiagn ostics Con-
nect ionSee Oper ator's Manu al... ........... 377
Dr iver's Door Open &Transmi ssion
No tin PRisk ofVehicle Rolling Away...... 354
Fr ont Passeng erAir bag Disabl edSee
Oper ator's Manual................................. 339
Fr ont Passeng erAir bag Enabl edSee
Oper ator's Manual...... ........................... 339
Haz ardWa rning Flasher sMalfunction-
ing........ .................................................345
Head-up DisplayCur rentl yUna vaila-
ble See Oper ator's Manual .....................346
Head-up DisplayInoper ative...... .............346
N Pe rm anen tly Ac tiveRisk ofRo lling
Aw ay<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F> 354
Onl ySh iTto 'P' when Vehicle isSta-
tio nar y.... ............................................... 353
Pa rking Assist andPARK TRON ICInop -
er ativ eSee Operator's Manual ........... .... 371 Pa
rking LockInoper ativeAppl yPa rk-
ing Brak e...... ......................................... 355
Place theKe yin theMar kedSpace
See Oper ator's Manual .......................... 343
PRE-S AFEInoper ativeSee Oper ator's
Manual.. ................................................ 340
Re versing NotPo ssible Service
Re quired....... ........................ ................. 354
Ru nFla tInd icatorInoper ative....... .......... 383
Ser vice Required Do NotShiT Gears
Vi sit Deale r... ......................................... 354
Te ac hing inTransmi ssionComplete........ 356
Te ac hing inTransmi ssionOperate
Se lect orLeverAppl yBr ak efo rXX s
Risk ofVehicle Rolling Away<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F> 355
Ti re Press .Monit orCur rentl yUna vail-
able......... ........................ ...................... 379
Ti re Press .Monit orIno per ative............... 379
Ti re Press ureMonit orIno per ative No
Wh eelSens ors.... ........................ ........... 380 Ti
re sOv erheat ed.................................... 382
To Deselect Por N, Depr essBrak e
and StartEng ine......... ........................... 353
To switc heng ineo., press and hold
St art/ Stop butt onforat least 3sec-
onds orpress 3times. ........................... 350
Tr a1c Sign Assis tCur rentl yUna vaila-
ble See Oper ator's Manual .....................366
Tr a1c Sign Assis tInope rativ e<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F> 366
Tr ansmi ssionMalfunct ion....................... 355
Tr ansmi ssionMalfunct ionService
Re quired....... ............ ............................. 356
Tr ansmi ssionMalfunct ionStop.... ........... 354
Wi per Malfun ctioning............................. 349
Dist Dist
ance contr ance
control ol
see ActiveDist ance AssistDIS TRONI C
DIS DIS
TR TR
ONI C ONI
C
see ActiveDist ance AssistDIS TRONI C
Door Door
Childsaf etyloc k(rear door ).<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F> 63
Loc king/unloc king(emerge ncy key).........7 2 410410
Inde
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