2023 MERCEDES-BENZ A CLASS sensor

of
apar king space. Theradar sensor sin the
bum peralso monit orthear ea adjacent tothe
ve hicle. Ifacr itical situ ation isde tected, theL
symbol appearsin themedia displayand theve hi-
cle can bebrak ed aut omati cally.
If th era dar sensor sar eobstr uctedbyvehicles or
ot her objects, detection isno tpossible .
Cr oss Tra1c Alertisactiv eunder thefo llo wing
conditions:
R Ifth eve hicle isbac king upatawa lking pace.
R Maneuv ering assist anceisactiv ated
(/ page204).
% Also obser vetheinst ruction son Blind Spo t
Assis tand ActiveBlind SpotAssi st
(/ page184) .
Sy st Sy
stem limits em
limits
Cr oss Tra1c Alertisno tav ailabl eon incl ines.
A A
ctiv ctiv
atin g/deact iv atin
g/deact ivatin gt atin
gthe mane uv he
mane uver er
ing assis t ing
assis tant ant
Mul time diasystem:
4 © 5
Setting s5
Assi stance
5 Camera &Pa rking #
SwitchMa neu veringAssi stance onoro.. %
The mane uvering assis tant must beactivefo r
th efunction ofDrive Aw ayAss ist
(/ page203) andCross Tra1c Alert
( / pag e203). VV
ehicle to ehicle
towing ins wing
instr tr
ucti ons ucti
ons
The vehicle isno tsuit able forth euse oftow bar
sy stems that areused for0at towing ordin ghy
to wing ,fo rex am ple. Attach ing and using tow bar
sy stems canresult indamag eto theve hicle.
When youar eto wing ave hicle withtow bar sys-
te ms, safedr ivin gch aract eristics cann otbe guar -
ant eed forth eto wing vehicle ortheto we dve hicle.
The vehicle- trailer combin ationmaysw erve from
si de toside.
Obser vethefo llo wing information:
R Perm itted towing methods (/page284)
R The noteson towing theve hicle withbo th
axles onthegr ound (/page285) 204204
Dr
ivin gand parking

#
Drain o.anyex cess engineoilthat has been
added. Todo so, consult aqua li/ed specialist
wo rkshop.
R For Engine OilLeve lSwi tch Ignition On #
Switchon theve hicle tocheckth eengine oil
le ve l.
R Engine OilLevel System Inoperative: Theoil
le ve lsensor isdef ectiv eor notconnect ed. #
Consult aqua li/ed specia listworkshop.
R Engine OilLeve lSys tem Currentl yUnav ail. #
Close thehood.
T T
opping upengine oil opping
upengine oil &
W W
ARNIN G ARNIN
GRisk ofbur nsfrom hotcom po-
nent partsintheengine compartment
Cer tain com ponent partsintheengine com-
par tment canbevery hot,e.g .th eengine, the
cooler andpartsof theex haus tsy stem. #
Allow theengine tocool down and only
to uc hcom ponent partsdescr ibedinthe
fo llo wing. &
W W
ARNIN G ARNIN
GRisk of/reand injur yfrom
engine oil
If engine oilcomes intocont actwithho tcom-
ponent partsintheengine compartment, it
ma yignit e. #
Mak esur eth at no eng ineoilisspill ed
ne xt to the/ller opening. #
Allo wtheengine tocool o.and thor -
oughl yclean theengine oilfrom com po-
nent partsbef orestar ting theve hicle. *
N NO O
TE TE
Eng inedamag ecaused byan inco r-
re ct oil /lter,incor rect oil oradditi ves #
Donotuse engin eoils oroil /lterswhic h
do notcor respond tothespeci/c ations
ex plicitl ypr escr ibed forth eser vice inter-
va ls. #
Followtheinst ruction son theser vice
int erva ldispla yfo rch ang ingtheengine
oil and obser vethepr escr ibed chang e
int erva ls. #
Donotuse additiv es. *
N NO O
TE TE
Damag ecaused byre/lli ng too
muc hengi neoil To
omuc hengin eoil can damag eth eengine or
th ecat alytic converter . #
Have excess engineoilremo vedat a
qu ali/ed special istwo rkshop. %
Depen dingon drivi ng style, theve hicle con-
sumes upto0.9 USqt(0.8 liter) ofoil per
600 miles (1000 km).Theoilconsum ption
ma ybe higher than this when theve hicle is
ne wor ifyo ufreq uentl ydr ive at high engine
speeds. Maint
enance andcare
261 261

*
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

R
Donotpolish theve hicle andalloywheels.
R Onlyuse carwashes that cor respond tothe
lat est engineer ingstandar ds.
R Donotuse carwash prog ram wit ha/nal hot
wa xtreatme nt.
R Donotuse pain tclean ers, bu1ng orpoli shing
pr oduct s,glo sspreser vers,e.g .wa x.
In theev ent ofpaintw orkdamag e:
R Alwaysha ve paintw orkre pair scar ried out ata
qu ali/ed special istwo rkshop.
R Mak esur eth era dar sensor sfun ction
(/ page155). NNo o
t t
es on cleaning decor es
on cleaning decorativ ativ
ef e
foils oils
Obser
vetheno teson matt e/nish carein the
ch ap ter"No teson pain twork/mat te/nish paint-
wo rkcar e"(/ page267). Theyalso applyto
matt edecor ativefo ils.
Obser vetheno teson clean ingdecor ativefo ils to
avo idvehicle damag e. Clean
ing Clean
ing
R Forcleaning, useplenty ofwa terand amild
cleaning agent without additiv esorabr asiv e
subst ances, e.g.acar sham pooappr ovedfo r
Mer cedes-Be nz.
R Remo vedirtimmediat ely, wher epossibl e,
whils tav oiding rubbing toohar d.Ther eis oth-
er wise arisk ofdamagi ngthedecor ativefo il
ir re par ably.
R Ifth er eis dir ton the/n ish orifth edecor ative
fo ilis dull: UsethePa int Cleaner recommen -
ded andappr ovedfo rMer cedes-Benz.
R Insect remains: Soakwithinsect remo verand
ri nse o.thetreat edareas aTer wards.
R Birddr oppin gs:Soak withwa terand rinse o.
aT erwa rds.
R Toprev ent waterst ains, drya fo il-wr apped
ve hicle withasoT, absorbe ntclo thaTer every
car wash.
Av Av
oiding damag oiding
damag et e
to t o
the decor he
decor ativ ativ
ef e
foil oil
R The service life and color ofdecor ativefo ils
ar eim pair edby:
- Sunl ight -
Temp eratur e,e.g. hotair blower
- Weather cond itions
- Stone chippings anddirt
- Chemica lcleaning agents
- Oilypr oducts
R Donotuse polish onmatt edecor ativefo il.
Po lishing willhave thee.ect ofshining the
fo il-wr apped surface.
R Donottr eat matt eor stru ctur eddecor ative
fo ils wit hwa x.Pe rm anen tst ains mayoccur .
Scr atches, corrosiv edeposi ts,areas a.ect edby
cor rosion anddamag ecaused byincor rect car e
canno talw aysbe com pletely repair ed. Insuc h
cases, visitaqua li/ed specialist workshop.
Yo ucan obtain mor einf ormation oncar eand
cleaning products from themanuf acturer.
In thecase offoil-wr apped surfaces, optical di.er -
ences mayoccur between thesur faces that we re
no tpr otect edbyadecor ativefo ilaTer remo vinga
decor ativefo il. 268268
Maint
enance andcare

ExtExt
er er
ior light ing ior
light ing
R Clean thelenses withawe tspo ngeand mild
clea ning agent, e.g.carshampoo.
R Onlyuse cleaning agents orcleaning cloths
th at aresuit able forplastic lenses.
Sensor s Sensor
s
R Clean thesensor sin thefront and rear bum p-
er swit hasoT clothand carsham poo
(/ page155) .
R When usingapo we rwa sher ,maint ainamin i-
mum distance of11.8 in(30 cm).
R R
ear vie ear
viewca mer w
ca mer aand surr a
and surround vie ound
viewca mer a w
ca mer a
R Ope nth ecamer aco verwit hth emultimedia
sy stem (/ page194).
R Use clean waterand asoT clothtoclean the
camer alens.
R Donotuse apo we rwa sher .
T T
ailpi pes ailpi
pes
R Clean withaclean ingagent recommen dedfor
Mercede s-Benz,especiallyin thewint erand
aTer washing theve hicle.
R Donotuse acidic cleaningagent s. NNo o
t t
es on car es
on car eof t e
of the int he
inter er
ior ior
&
W W
AR NIN G AR
NIN GRisk ofinjuryfrom plas ticpar ts
br eakin go. aTer theuse ofsol vent-ba sed
ca re products
Car eand cleaning products containing sol-
ve nts canca use surfaces inthecoc kpit to
become porous. When theairbags are
deplo yed, plastic partsma ybr eak away. #
Donotuse anycar eor cleaning products
cont aining solvents toclean thecoc kpit. &
W W
ARNIN G ARNIN
GRisk ofinjur yor fata linjur ies
fr om bleac hedseat belts
Bleac hingordyeing seat belts canseverely
we aken them.
This can, forex am ple, cause seatbeltsto tear
or failin an accident. #
Neverbleac hor dyeseat belts. To
avo iddamag eto theve hicle, observethefo l-
lo wing noteson clean ingand care: Se
atbelt s Se
atbelt s
R Clean withluk ewa rmand soap ywa ter.
R Donotuse chemical cleaning agents.
R Donotdr yby heati ngthem toove r176°F
(80°C) orexposing them todirect sunlight.
Displa y Displa
y
R Switc ho. thedispla yand letit cool down.
R Clean thesur face car efully wit hamicr o/ber
clo thand asuit able displaycar epr oduct (TFT-
LC D).
R Donotuse anyot her agent s.
Head -upDispl ay Hea
d-up Display
R Cleanwithaso T, non-st atic,lint- free cloth.
R Donotuse cleaning agents.
Plas Plast
ictr tic
trim im
R Clean withadam pmicr o/ber cloth.
R Forhea vysoiling: Useacleaner recommen -
ded forMer cedes-Benz.
R Donotatt achstic kers,/lms orsimil armat eri-
als. 270270
Main
tenanc eand care

th
elow tirepr essur ete lltale illuminat es,you
should stop and checkyo ur tires assoon as
possible, andin0ateth em tothepr oper pres-
sur e.Driving onasign i/can tlyu nde r-in0 ated
tir ecauses thetir eto overheat andcanlead
to tirefa ilur e.Under -in0at ion also reduces fuel
e1ciency andtiretread life, and maya.ect
th eve hicle ’shandl ingand stoppin gabili ty.
Ple ase note that theTPMS isno ta substitut e
fo rpr oper tiremaint enance, anditis thedr iv-
er ’s responsi bilityto maint aincorrect tire
pr essur e,even ifunder -in0at ion has not
re ac hed theleve lto trigg erillum inatio nof the
TPMS low tirepr ess urete lltale.
Yo ur vehicle hasalso been equipp edwith a
TP MS malf unct ionindicat ortoindicat ewhen
th esy stem isno toper ating proper ly.The
TPMS malfunction indicatoris combined with
th elow tirepr essur ete lltale. When thesy stem
de tects amalfu nction, thete lltale will 0ashfo r
appr oximat elyone minut eand then remain
contin uouslyillumin ated. This sequence will
contin ueupon subseq uentvehicle star t-ups as
lon gas themalfunction exists. When
themalfunction indicatorisilluminat ed,
th esy stem mayno tbe able todetect or sign al
lo w tirepr essur eas intende d.TPMS malfu nc-
tion sma yoccur fora va riet yof reasons,
incl udin gth einst allation ofreplacement or
alt ernat etir es orwheels ontheve hicle that
pr eve nttheTPMS from function ingproper ly. The
system checks thetir epr essur eand thetir e
te mp eratur eof thetir es inst alled ontheve hicle by
means ofatir epr essur esensor .
The tirepr essur eand thetir ete mp eratur eappear
in theon-boar dcom puter(/ page297).
If th er eis asubst antial pressur eloss orifth etir e
te mp eratur eis excessiv e,youwill bewarned with
displa ymessag es(/ page379) orthe0077
wa rning lampin theinst rument cluster
(/ page399).
The tirepr essur emonit oring system isonl yan aid.
It is thedr iver's responsi bilityto setth etir epr es-
sur eto there commen dedcold tirepr essur esuit a-
ble forth eoper ating situation.
In most cases ,th etir epr essur emonit oring sys-
te m will automaticall yupdat eth ene wrefere nce va
lues aTer youha ve chang edthetir epr essur e.
Yo ucan, howev er,also updat eth ere fere nce val-
ues byrestar ting thetir epr essur emonit oring sys-
te m manuall y(/ page298).
Sy st Sy
stem limits em
limits
The system maybe impair edorma yno tfun ction
par ticular lyin thefo llo wing situations:
R Incor rect refere nce values weretaught in
R Sudden pressur eloss caused byafo re ign
object penetrating thetir e, forex am ple
R Ther eis amalf unct ioncaused byano ther
ra dio signal source
Chec Chec
kingt king
the tir he
tirepr e
pr essur essur
ewit e
wit ht h
the tir he
tirepr e
pr essur e essur
e
monit monit
or or
ing syst ing
system em
R R
eq equir uir
ements: ements:
R The vehicle isswitc hedon.
On- boar dcom puter:
4 Service5
Tires
One ofthefo llo wing displa ysappear s:
R Current tirepr ess ureand tirete mp eratur eof
th eindividual wheels: Wheels
andtires
297 297

Obser
vethefo llo wing when selecting, installing
and replacing tires:
R Further mor e,theuse ofcer tain tiretypes in
cer tain regions andareas ofoper ationca nbe
high lybene/cia l.
R Onlyuse tires and wheels ofthesame type
(summer tires, wint ertires, MOExt ended tires)
and thesame make.
R Onlyinst allwheels ofthesame sizeonone
axle (leTandright) .
It is onl yper mis sibleto inst alladi.er ent
wheel sizeintheev ent ofa0at tirein order to
dr ive to thespecialist workshop.
R V V
ehicle swit ehicle
swit hatir h
atir epr e
pr essur essur
emoni t e
moni tor or
ing sy ing
sys- s-
t t
em: em:
Allinstalled wheels mustbeequipped
wit hfunctionin gsensor sfo rth etir epr essur e
monit oring system.
R Attemp eratur esbelo w45 °F(7°C) use win-
te rtir es orall-season tires mar ked004D M+S
fo rall wheels.
Wi nter tires prov ide thebest possible grip in
wintr yroad conditions. R
ForM+S tires, onlyuse tires withth esame
tr ead.
R Obser vethemaximum permissible speedfor
th eM+S tires inst alled.
If th etir e's maximum speedisbelo wthat of
th eve hicle, this must beindicat edbyan
appr opriatelabel inthedr iver's /eld ofvision.
R Break inne wtires atmoder atespeeds forth e
/r st 60 miles (100km).
R Replace thetir es aTer sixyearsat thelat est,
re ga rdless ofwe ar.
R When r When
replaci ngwit eplaci
ngwithtir h
tir es t es
that dono hat
donotf t
featu r eatu
re e
r r
un-0at un-0at
c c
har har
act act
er er
is is
tics: tics:
vehicles with
MOExt endedtires areno teq uipp edwitha
TIR EFIT kitatthefa ct or y. Eq uip theve hicle
wit haTIR EFIT kitaTer replacing withtir es that
do notfe atur eru n-0at charact eristics, e.g.
wint ertires.
Fo rmor einf ormation onwheels andtires, cont act
a qu ali/ed special istwo rkshop.
Be sureto also obser vethefo llo wing further rela-
te dsubjects:
R Noteson tirepr essur e(/ page293) R
Tire and Loadi ngInformatio nplacar d
(/ page300)
R Tire size desig nation,load- bearingcapacit y,
speed rating andload index(/ page307)
R Tire pressur eta ble (/ page295)
R Noteson theemer gency sparewheel
(/ page321) NNo o
t t
es on rot es
on rotatin gt atin
gthe wheels he
wheels &
W W
AR NIN G AR
NIN GRisk ofinjuryth ro ugh di.er ent
wheel sizes
Ro tating thefront and rear wheels can
se verely im pair thedr iving charact eristics.
The wheel brak es orsuspen sioncomponen ts
ma yalso bedamag ed. #
Rotate front and rear wheels onlyif th e
wheels andtires areof thesame dimen-
sions. The
wearpatt erns on thefront and rear wheels
di.er :
R Front wheels wearmor eon thetir eshoulder 314314
Wheels
andtires