MERCEDES-BENZ A-CLASS SEDAN 2021 Owner's Guide

1
Safetyve sts →
265
2 ; mebutt on →
232
0053 SOSbutton →
232
3 002F Hazard warning light system →
111
4 Glovebox
5 Startin gassis tance →
276
6 Chec kingand refilling operatingfluids →
323
7 Tow- star tin gor towing away →
279
8 Flattir e →
266
9 B-pil larwi th: QR
code foraccessi ngthere scue card →
30
A Tow- star tin gor towing away →
279
B TIREFIT kit →
268
C First-ai dkit (softsided) →
266
D Fuelfiller flap with:
inf ormat ionlabel onfuel type →
142
Inf ormation labelon tirepr essur e →
290
QR code foraccessi ngthere scue card →
30
E Warning triang le →
265 At
aglanc e– Em erge ncie sand brea kdo wns 19

Callin
gup theDigital Operator' sMan ual
Multi media system:
4 © 5
Info 5
Operator 'sManual
5 Õ The
Digit alOper ator's Manual describesthe
functions andoper ation oftheve hicle andthe
multime diasystem. #
Select oneofthefo llo wing menuitems inthe
Dig ital Op erator' sMa nua l:
R Sea rch: searchfo rke yw ords inorder tofind
qu ick answ ersto question sabout theoper a‐
tion oftheve hicle. R
Quick start:hereis wher eyo ufind thefirs t
st eps towa rdsse ttin gup your vehicle.
R Tips: find informa tionth at prepar esyoufo r
cer tain eve ryda ysituation swit hyo ur vehicle.
R Animation s:wa tchani ma tions oftheve hicle
funct ions.
R Messages: recei veaddit ionalinf ormat ion
about themessag esintheIns trument Dis‐
pla y.
R Bookma rks:ga in acc ess toyour per son ally
sa ve dbookm arks .
R Langua ge:select thelanguag efo rth eDigit al
Oper ator's Manual. 1
Back
2 Adds bookm arks
3 Pictur e
4 Cont ents section
5 Direction sof mo vement ofcont ents section
6 Menu
Some sections intheDigit alOper ator's Manual,
e.g. warning notes, can beexpanded andcol‐
lapsed.
Ad diti onalme thods ofcal ling up the Digital
Ope rato r's Man ual:
Di rect access :open there qu ired con tent inthe
Dig ital Op erator' sMa nua lby pressing andhold‐ 20
DigitalOper ator's Manual

ing
anent ryon theta bbar inthemultimedia
sy stem: Ins
trument Display:cal lup briefinf ormati onas
di spl aymessa gesin theins trument cluster
Vo ice Contr olSy stem: callupvia thevo ice
con trol system
Fo rsaf etyre ason s,theDigit alOper ator's Man‐
ual isdeactiv ated while driving. Digita
lOper ator's Manual 21

Pr
otecting theen vir onmen t
+ ENV
IRONM ENTALNOTEEnvironme ntal
da ma gedue tooper ating condit ionsand
per sonal driving style The
pollut antemission oftheve hicle is
dir ectl yre lat ed tothewa yyo uoperat eth e
ve hicle.
Oper ateyo ur vehicle inan environment ally
re sponsible mannertohelp protect theen vi‐
ro nment. Plea se obser vethefo llo wing rec‐
omme ndations onope rating cond itions and
pe rsonal driving style.
Oper ating conditions: #
Mak esur eth at thetir epr essur eis cor‐
re ct. #
Donotcar ryanyunn ecessar ywe ight
(e.g. roof lugg agera ck sonce youno
lon gerneed them). #
Adher eto theser vice interva ls.
A regular lyser viced vehicle willcont rib‐
ut eto environmen talpr otect ion. #
Alw aysha ve maint enance workcar ried
out ataqu alif ied spec ialistwo rkshop.
Pe rsonal driving style: #
Donotdepr esstheaccelera torpeda l
when star tin gth eengine. #
Donotwa rm uptheengine whilethe
ve hicle isstatio nary. #
Drive car efu llyand maintain asu itab le
di st anc efrom theve hicle infront. #
Avoid freq uent, sudden acceleration
and braking. #
Chang ege ar ingood timeand useeach
ge ar onlyup to00C3 ofits maximum
engine speed. #
Switc hof fth eengine instatio narytraf‐
fi c, e.g. byusin gth eEC Ostar t/ stop
funct ion. #
Drive fuel-ef ficie ntly .Obs erve theEC O
displa yfo ra fuel -efficie ntdrivi ng style. En
vir onmental issuesandrecomm endations
It is recomme ndedthat youre -us eor recy cle
mat erials ins tead ofjus tdispo singof them.
The releva nt environme ntal gu ideline sand regu‐
lations servetoprotect theen vironmen tand
mus tbe strictly observe d. Genuine
Mercedes-Benz parts
+ ENVIR
ONMEN TALNO TEEnvironme ntal
da ma gedue tonotus ing recy cle dre con‐
di tione dcom pone nts Mercedes‑Be
nzAG offers recy cle dre condi ‐
tione dcom pone ntsand parts wit hth esame
qu alit yas newpar ts.The same entitlemen t
fr om theLimit edWarrant yis valid asforne w
par ts. #
Use recy cle dre condi tionedcom po‐
nents andparts from
Mer cedes‑Benz AG. 22
Gener alno tes

*
NO
TEImpairment oftheoper ating effi‐
cie ncy ofthere stra int systems from
ins talling accessor ypar tsor from repair s
or we lding Air
bags andEmerge ncy Tensi oni ng Device s,
as wellas con trol unit sand sensorsfo rth e
re stra int systems, maybe installed inthefo l‐
lo wing areas ofyour vehicle:
R Door s
R Door pillars
R Doo rsi lls
R Sea ts
R Cockpit
R Instrument cluster
R Cen terconsole
R Lateral roof frame #
Donotins tallacc essor ypar tssuc has
audio systems inthese areas. #
Donotcar ryout repair sor we lding. #
Have afte rm arke tins tallation ofacc es‐
sor ies carried out ataqu alif ied spec ial‐
is two rkshop. Yo
uco uld jeopar dizeth eoper ating safetyof your
ve hicle ifyo uuse parts,tir es and wheel sas well
as acc essor iesreleva nt tosaf etywhic hha ve not
be en approve dby Mer cedes-Ben z.Saf ety-re le‐
va nt systems, e.g.thebr ak esy stem, maymal‐
func tion.Onl yuse Mercedes- BenzGenuineP arts
or par tsof equal qualit y.Onl yuse tires, wheels
and accessor iesthat have been specif ically
appr ovedfo ryo ur vehicle model.
Mer cedes-Ben zGenuineP arts aresubject to
st rict qualit yins pec tions.Eac hpar thas been
spec iallyde veloped, manufactured orselec ted
fo rMer cedes-Benz vehicles andadap tedto
th em. Ther efor e, onl yMer cedes- BenzGenuine‐
Pa rts should beused.
Mor eth an 300,0 00 differe nt Mer cedes-Be nz
Ge nui neP arts areav ailable forMer cedes-Benz
model s.
All author ized Mercedes-B enzCent ersmaint ain
a supply ofMer cedes-B enzGenuineP arts for nece
ssaryser vice andrepair work.In addition,
st ra tegically locatedpar tsdeliv erycent erspr o‐
vide forqu ick and reliable partsser vice .
Alw aysspecify theve hicle identif ication number
(VIN) (/page322) when order ing Mer cedes-
Benz GenuineP arts. Oper
ator's Manual
This Oper ator's Manual describesallmodels and
all standar dand optio nal equipme ntavailable for
yo ur vehicle atthetime ofthis Opera tor's Man‐
ua lgoing topress. Countr y-specif icdif fere nces
ar epo ssi ble. No tethat your vehicle mayno tbe
eq uipped withall featur esdesc ribed. Thisisalso
th ecase forsy stems andfunc tionsre leva nt to
saf ety. Ther efor e, theeq uipment onyour vehicle
ma ydif ferfr om that inthedescr iption sand illus‐
tra tion s.
The original purchase agreement foryo ur vehicle
cont ains alis tof all ofthesy stems inyour vehi‐
cle.
Should youha ve anyqu estion scon cerning
eq uipment andoper ation, please consult an
aut hor ized Mercedes- BenzCenter. Gener
alno tes 23

The
Oper ator's Manual andMaint enanc eBookle t
ar eim por tant docum ents andshould be kept in
th eve hicle. Ser
vice andvehicl eoper ation Ve
hicl eoper ation outside theUS Aor Cana da When
youar eabr oad withyo ur vehicle, observe
th efo llo wing points:
R Service point sor replacemen tpar tsma yno t
be available immediat ely.
R Unleaded fuelmayno tbe available forve hi‐
cles withacat alytic converter .Leaded fuel
ma ycause damag eto thecat alytic converter .
R The fuel mayha ve an extreme lylow oct ane
numb er.Un suit able fuelcancause engine
damag e.
Some Mercedes-Benz modelsareav ailable in
Eur ope thro ugh ourEuropean DeliveryPr og ram.
Fo rmor einf ormation, pleaseconsult anauthor‐
ized Mercedes‑B enzservice center,or write to
one ofthefo llo wing address:
In theUS A: Mer
cede s-Benz USA,LLC
Eur opea nDeliv eryDepar tment
One Mercedes-Benz Drive
Sandy Springs, GA30328
In Canada:
Mer cedes-Benz Canada,Inc.
Eur opea nDeliv eryDepar tment
98 Vande rhoof Avenue
To ronto, Ont ario M4G 4C9 Mai
nten anc e Yo
ur cus tomer advisorconf irms theser vice in
th eser vice repor t. Ro
adside Assistan ce The
Mercedes -Benz Roadside Assis tance Pro‐
gr am offers tech nica lhel pin thecase ofa
br eakdo wn.Your calls totheto ll-f reeRo adside
As sis tance Hotline areans weredby our agents
24 hour sa da y,365 days aye ar.
1- 80 0-FO R-MER Cedes (1-800-367-63 72)(US A) 1-8
00-387-0 100(Canada)
Yo ucan find further information inthe
Mer cedes-Ben zRo adside Assis tance Progr am
br oc hu re (US A)orthe"R oadside Assistance"
secti onintheSer vice andWarrant ybook let
(Canad a).Youwill find both intheve hicle docu‐
ment wallet. Chang
eof address orchang eof ow ner ship In
theev ent ofach ang eof addr ess, please send
us the"No tification ofaddr esschang e"inthe
Ser vice andGuarant eeboo kletor simply callth e
Mer cedes-Ben zCus tomer Assis tance Center
(US A)on theho tline number
1-8 00-FOR-MER Cedes (1-800-367-63 72)or Cus‐
to mer Service (Canada )on 1-800-38 7-0100. We
can then reac hyo uin atim elyfa shion, ifneces‐
sar y.
If yo usell your Mer cedes,pleas elea veall liter a‐
tur ein theve hicle sothat itis available tothe
ne xt ow ner .If yo uha ve pur chased aused vehi‐
cle, please sendusthe"No tice ofPur chase of
Used Car"intheSer vice andGuar anteebookle t
or sim plycall theMer cedes- BenzCustomer 24
Generalno tes

Assi
stanc eCent er(US A)attheho tline number
1-8 00-FOR-MER Cedes (1-800-367-63 72)or Cus‐
to mer Service (Canada )at 1-800-38 7-0100. Po
ssible dangerdue tosubs tances hazard‐
ous tohealth In
com pliance withPr oposi tion65("Prop65"),
th efo llo wing detach able label hasbeen added to
eac hve hicle soldinCali forn ia: Oper
ating safety &
WARNIN GRisk ofacci dent dueto mal‐
functions orsystem failur es
To avo idmalfun ctions orsystem failur es: #
Alw aysha ve thepr escr ibed service and
maint enanc ewo rkas wellan yre qu ired
re pair scar ried out ataqu alif ied spe‐
cialis two rkshop. &
WARNIN GRisk ofacci dent orinju rydue
to inc orrect mod ifica tions onelectr onic
com pone ntparts
Modif ication ofelectr oniccomponent s,their
sof twareor wir ing could impair their func tion
and/or thefunc tion ofother networke dcom‐
ponen tpar tsor saf ety-re leva nt systems.
This canendang ertheoper ating safetyof the
ve hicle. #
Neverta mp erwit hth ewir ing and elec‐
tr onic componen tpar tsor their soft‐
wa re. #
Yousho uld have all workon electr ical
and electr oniccomponent scar ried out
at aqu alif ied spec ialistwo rkshop. Obser
vethe"On-boar delectr onics"sect ionin
"T ec hnical data". &
WARNIN GRisk offire due toflammab le
mat erials onhotpar tsof theex haus t
sy stem
Flammable material suc has lea ves, grass or
twigs mayignit eif th ey come intocont act
wi th hotpar tsof theex haus tsy stem. #
When driving onunpavedro ads oroff-
ro ad, regular lych eckth eve hicle under‐
side. #
Remo vetrap pe dplants orother flam‐
mable material, inpar ticular . #
Ifth er eis damag e,con sult aqu alif ied
spec ialistwo rkshop immediat ely. Gener
alno tes 25

*
NO
TEDama getotheve hicle duetodriv‐
ing toofast and due toimpact sto the
ve hicle underbody orsuspension compo‐
nent s In
thefo llo wing situat ions,in par ticular ,th er e
is arisk ofdamag eto theve hicle:
R The vehicle becomes grounded, e.g.ona
high curb oran unpavedro ad
R The vehicle isdriven toofa st over an
obs tacle ,e.g. acurb ,spe edbump orpot‐
hole
R Ahea vyobject strike sth eunderbody or
suspension componen ts
In situation ssuc has these, damag eto the
body ,underbody ,suspension componen ts,
wheels ortires ma yno tbe visible. Compo‐
nen tsdamag edinthis wa ycan unexpec tedly
fa ilor ,in thecase ofan acciden t,ma yno lon‐
ge rabso rbthere sulting forc eas intended.
If th eunderbody panelingisdamag ed,flam‐
mable materials suchas lea ves, grass or
twigs cancollect between theunderbody and th
eunderbody paneling.Thesematerials may
ignit eif th ey come intocont actwith hot
par tsof theex haus tsy stem. #
Have theve hicle checkedand repair ed
immediat elyat aqu alif ied spec ialist
wo rkshop.
or #
Ifdr iving safetyis im pair edwhile con‐
ti nui ng your jour ne y,pull over and stop
th eve hicle immediat ely, while paying
att ent ion toroad and traffic condi tions,
and cont actaqu alif ied spec ialistwo rk‐
shop. Dec
laration ofconf ormity forwi reless vehi‐
cle comp onent s
US A:"Radio based devic es ofthis vehicle com‐
ply withPa rt15 oftheFCC Rules. Opera tionis
subje ctto thefo llo wing twocon dition s:1) These
de vice sma yno tcause harmful interfere nce, and
2) The sedevice smu stacc eptan yint erfere nce
re cei ved, includin gint erfere nce that ma ycaus e
unde sired oper ation.Chan gesor modif ications no
tex pressl yappr ovedby thepar tyresponsible
fo rcom pliance could void theuser's author ityto
oper ateth eeq uipment. "
Canada :"This vehicle contains license-e xemp t
tr ans mitter( s)/r ece iver( s)that com plywit hInno ‐
va tio n,Scie nceand Econo micDe velopmen tCan‐
ada ’sRSS (s).Operatio nis subj ectto thefo llo w‐
ing twocon dition s:(1) These device sma yno t
cause interfere nce, and(2)The sedevice smu st
acc eptan yint erfere nce, including interfere nce
th at ma ycaus eunde sired oper ationof the
de vice. "
US A:"W ireless chargin gsy stem formobil ede vi‐
ces (mode l:WMI2 Wireless Mobile Inte rface) :
This devic ecom plies withPa rt18 oftheFCC
Ru les."
The name andaddr essofthere sponsible party
is:
peik eracus ticGmbH
Max-Planc k-St r.28-32
61 38 1Fr iedr ichsdor f
Ger man y 26
General notes

Diag
nostics connect ion
The diagn ostics conn ection isate ch nica lint er‐
fa ce intheve hicle. Itis used, forex am ple, within
th escope ofrepair andmaint enanc ewo rkor for
re adin gout vehicle databy aspec ialistwo rk‐
shop. Diagnos ticdevices should ther efor eonl y
be con nect edbyaqu alif ied spec ialistwo rkshop. &
WARNIN GRisk ofacci dent dueto con‐
necting device sto thediagnos ticscon‐
nect ion
If yo uco nn ect devic es tothediagnos tics
con nect ionoftheve hicle, thefunc tion of
ve hicle systems andoper ating safetyma ybe
im pair ed. #
Forsaf etyre ason s,we recomme ndthat
yo uon lyuse and conn ect produc ts
appr ovedby your aut hor izedMer cedes-
Ben zCen ter. &
WARNIN GRisk ofacci dent dueto
object sin thedr iver's foot we ll
Obj ectsin thedr iver's foot we llma yim pede
pedal trav el or bloc kadepr essed pedal.
This jeopar dizestheoper ating androad
saf etyof theve hicle. #
Stow allobj ect sin theve hicle secur ely
so that they canno tget intoth edr iver's
fo ot we ll. #
Alw aysins tallth efloor mats securely
and asprescr ibed inorder toensur e
th at ther eis alw ayssuf ficie ntroom for
th epedals. #
Donotuse loose floor mats anddonot
place floor mats ontopof one another. *
NO
TEBatt erydi sc ha rging from using
de vice sconne cted tothediagnos tics
con nect ion Using
devices atthediagnos ticsconnect ion
dr ains thebatt ery. #
Chec kth ech arge leve lof thebatt ery. #
Ifth ech arge leve lis low, charge the
batt ery, e.g. bydriving acon sider able
dis tance. Co
nnecti ngand using ano ther device withth e
diagnos ticsconnection canhave thefo llo wing
ef fects:
R Malfunctions intheve hicle system
R Perm anen tdamag eto vehicle component s Gener
alno tes 27

Please
referto thewa rrant yte rm sand condi‐
tions forth is matt er.
Mor eover,connecti ngequipme nttothediagnos‐
tics connect ioncan lead toemissions monitor‐
ing information beingrese t,forex am ple. This
ma ylead totheve hicle failing tomee tth e
re qu iremen tsof thene xt emissions inspection
dur ing themain inspect ion. Qualif
iedspecialis two rkshop
An author ized Mercedes-B enzCent erisaqu ali‐
fi ed specialis two rkshop. Ithas theneces sary
special skills,tools and qualif icat ionsto cor‐
re ctly carryout thewo rkrequ ired on your vehi‐
cle. This particular lyapplies tosaf ety-re leva nt
wo rks.
Fo rth efo llo wing, alwaysha ve your vehicle
ch eckedat an aut hor ized Mercedes- BenzCen‐
te r:
R Safety-re leva nt wo rks
R Service andmaintena nce work
R Repair work R
Modif ications aswellas installation sand
con versions
R Workon electr oniccomponent s
Mer cedes‑B enzrecomme ndsaMercedes‑Be nz
ser vice center. Co
rrect use oftheve hicl e
If yo ure mo veanywa rning sticke rs,yo uor other s
could failto recogni zecer tain dang ers. Lea ve
wa rning sticke rs inposit ion.
Obser vethefo llo wing informatio nin par ticular
when drivin gyo ur vehicle:
R thesaf etyno tesin this manual
R tech nica lda ta forth eve hicle
R traf fic ru les and regulations
R laws and safetyst andar dsper tainin gto
mo torve hicles No
tesfo rper sons with elec tron icmedi cal
aids
Me rcedes-B enzAGcanno t,des pite car efu lly
de veloping vehicle systems, completely rule out
th eint eraction ofvehicle systems withelectr onic
medical aidssuchas car diac pacemak ers.
In addition, ther ear ecom ponen tsins talled in
th eve hicle that, rega rdless oftheoper ating sta‐
tus oftheve hicle, cangener atema gne ticfields
on apar withper manen tmagne ts.These fields
can befound ,fo rex am ple, inthear ea around
th emultimedia andsound system oralso inthe
ar ea oftheseats, depending ontheve hicle
eq uipment.
Fo rth is reason ,th efo llo wing canoccurinisola‐
te dcases, dependin gon theaids used:
R Medical aidsmalfunct ioning
R Adversehealt hef fects
Obs erve theno tesand warnings ofthemanuf ac‐
tur erofthemedical aids;ifin doubt, contact the
de vice manuf acturerand/or your doc tor.If th er e
is con tinuin guncer taint ycon cerningth epossi‐
bility ofmedical aidsmalfunct ioning,Mercedes- 28
Gener alno tes