roof MERCEDES-BENZ A-CLASS SEDAN 2021 Owner's Manual

Symbols
........................................................ 5 At
agl ance ....................................................6
Coc kpit ....... ..................... ..................... ..........6
Indica torand warning lam ps(stan dar d)........ 10
Indicat orand warning lam ps(Wide‐
scr een Cockpit)............................................ 12
Ov erhead controlpanel ................................ 14
Doo rop erati ng unitand seatad jus tment .....16
Emerg enciesand brea kdo wns ............ .......... 18 Digita
lOp erator' sMa nua l......................... 20
Callin gup theDigit alOper ator's Manual ...... 20 Gener
alno tes... .......................................... 22
Pr otect ing theen vironmen t... ....................... 22
Genuine Mercedes- Benzparts......................2 2
Oper ator's Manual ........................... .............2 3
Ser vice andvehicle operation ......... .............. 24
Oper ating safety...........................................2 5
Decl arati on ofconf ormity forwireless
ve hicle component s... ..................................2 6
Dia gno stics con nection ................................ 27 Qua
lified speci alistwo rkshop ....................... 28
Cor rect useof theve hicle ............................2 8
No tesfo rper sons withelectr onicmedi‐
cal aids..... ........................................ ............ 28
Pr oble mswithyo ur vehicle ............... ............ 29
Re por tingsaf etydef ects ...............................2 9
Limit edWarrant y.......................................... 30
QR cod efo rre scue card... ............... .............3 0
Dat ast or ag e... ..............................................3 0
Cop yright ...................................................... 35 Occup
antsafety.... .....................................36
Re stra int system .............................. .............3 6
Sea tbel ts<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 38
Airb ags<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 42
PR E-S AFE ®
sy stem ....................................... 50
Au tomatic measu resaf te ran accide nt..... .... 51
Saf ely transp orting childr enintheve hi‐
cle ...... ........................................................... 51
No teson pets intheve hicle ............ .............6 5 Opening
andclosing .................................. 66
Smar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 66
Door s<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 70Tr
unk ............................................................ 73
Sid ewi ndo ws<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 77
Sli ding sunroof <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 80
Anti-t heftpr otect ion .....................................8 4 Seats
andstowing ...................................... 87
No teson thecor rect driver's seatpos i‐
tion <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011>.......87
Sea ts<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 88
St eer ing wheel ..............................................9 5
Eas yentr yand exitfeatur e...........................9 6
Memor yfunct ion.......................................... 97
St ow agear eas .............................................. 98
Soc kets ........... ............................................ 105
Wi reless chargin gof themobile phone
and connect ionwithth eex terior ant enna ..105
Ins talling/ remo ving thefloor mats .............1 07 Light
andvisibili ty................................... 10 9
Ext eriorlighti ng............. .............................109
Int erior ligh ting ............................................ 114
Wi ndsh ield wipe rand windsh ield wa sher
sy stem ........................................................ 115
Mir rors <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 117 2
Contents

1
Sun visors
2 003D Switches thelef t-hand readin glam p
on /of f →
114
3 0033 Switches automatic interior ligh ting con‐
tr ol on/of f →
114
4 004A Switches thefront interior lighting
on/ off →
114
5 0042 Switches there ar interior light ing
on /of f →
114 6
003D Switches theright-h andreadin glam p
on /of f →
114
7 ; mebutt on →
232
8 0053 SOSbutton →
232
9 0057 Opens/close sth epanor amaroof wit h
po we rtilt/sli dingpanel →
80
0057 Opens/clos esthero ller sunblin d →
80
A Inside rear vie wmir ror →
118 At
aglanc e– Ov erhead control pane l15

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

PRE-S
AFE®
sy stem PRE-
SAFE®
(ant icipa tory occupa ntprotec‐
tion) PRE-
SAFE®
is ab leto detect cer tain critic aldriv‐
ing situat ionsandimplemen tpr e-em ptive meas‐
ur es toprotect theve hicle occupants.
PRE-S AFE®
can implement thefo llo wing meas‐
ur es indepe ndently of eac hot her :
R Tight ening theseat belts onthedr iver's seat
and front passeng erseat.
R Closing theside windo ws.
R Vehicl eswith sliding sunroof:Clo sethe
sliding sunroof.
R Vehicl eswith memor yfuncti on:Movethe
fr ont passeng ersea tto amor efa vo rable
seat position .
R PRE-S AFE®
Sound: prov ided that themulti‐
media system isswitc hedon,gener ates a
br iefnoi sesigna lto stimulat eth einnat epr o‐
te ctiv emec hanism ofaper son's hearing. *
NO
TEDama gecau sed byobject sin the
fo ot we llor behin dth eseat The
automatic adjustmentof theseat posi‐
tion mayre sult indamag eto theseat and/or
th eobjec t. #
Stow object sin asuit able place. Re
versing thePRE- SAFE®
sy stem mea sures If
an acc iden tdid notocc ur,th epr e-em ptive
measur esthat we retak en arere ve rsed.
Yo uwill need toper form certain settings your‐
self . #
Ifth eseat beltpre-t ension ingisno tre duced,
mo vetheseat backres tbac kslightl y.
The locking mechanism releases. Fu
nction ofPRE-S AFE®
PL US (anticipat ory
occupant protection plus) PRE-
SAFE®
PL US can detect cer tain im pact s,
par ticular lyan imm inentrear impact ,and take
pr e-em ptive measur estoprotect theve hicle occupants.
Thesemeasur escanno tnecessar ily
pr eve ntan imm inentimpact.
PR E-S AFE ®
PL US can implem entthefo llo wing
measur esindepe ndently of eac hot her :
R Tight ening theseat belts onthedr iver's seat
and front passeng erseat.
R Increasin gbr ak epr essur ewhen theve hicle
is statio nary.This brak eapplication iscan‐
celed automaticall ywhen theve hicle pulls
aw ay.
If an accident didnotoccur ,th epr e-em ptive
measur esthat we retake nar ere ve rsed.
Sy stem limit s
The system will notinitiat ean yaction inthefo l‐
lo wing situat ions:
R When backingup
The system will notinitiat ean ybr aking applica‐
tion inthefo llo wing situat ions:
R Whils tdr ivin g
or 50
Occupant safety

#
Tointerru pt aut omatic operation :pr ess or
pul lth e0062 buttonagain.
When theve hicle isswitc hedoff,yo ucan con‐
tin ue tooper ateth eside windo ws.
This funct ionisavailable forar ound four min utes
or unt ila fron tdoor isopen ed.
Au tomatic reve rsing funct ionoftheside win‐
do ws
If an obs tacle imped esasid ewi ndo wdu ring the
clos ingproces s,theside windo wwill open again
aut omaticall y.The automatic reve rsing func tion
is onl yan aid and isno ta subs titutefo ryo ur
att entiven ess . #
Dur ing theclosing process, makesur eth at
no body partsarein theclosing area. &
WARNIN GRisk ofbeco ming trap ped
des pite ther ebeing reve rsing protect ion
on theside windo w
The reve rsing func tion does notre act :
R Tosof t,light andthin obje cts, e.g. fin‐
ge rs. R
Dur ing rese ttin g.
The reve rsing func tion cannotpr eve ntsom e‐
one from becomi ngtrap pe din these situa‐
tion s. #
Dur ing theclosing process, makesur e
th at no body partsarein theclosing
ar ea. #
Ifsomeon ebecomes trapped, press the
0062 buttontoopen theside windo w
ag ain. Con
venience opening (ventilating theve hicl e
bef orest ar ting ajour ney) &
WARNIN GRisk ofentr apment when
ope ning asid ewi ndo w
Whe nope ning asid ewi ndo w,par tsof the
body could bedraw nin or become trap pe d
be twee nth eside windo wand windo wframe. #
When opening ,mak esur eth at nobody
is touc hin gth eside windo w. #
Release thebutt onimmediat elyif
somebody becomestrapped. #
Press and hold theÜ buttononthe
Smar tKey .
The follo wing functionsar eper form ed:
R The vehicle isunloc ked.
R The side windo wsareopen ed.
R The pano ramic sliding roof isopened.
R The seat ventil ation ofthedr iver's seat is
switc hedon.
% Ifth ero ller sunblin dof thepanor amicsliding
sunr oofisclosed, thero ller sunblin dis
open edfirs t. #
Tointerru pt con venience opening: release
th eÜ button. #
Tocont inue convenience opening: press
and hold theÜ buttonagain. 78
Opening andclosing

Con
venience closing (closing theve hicl e
fr om outside ) &
WARNIN GRisk ofentr apment dueto not
pa ying attenti onduring con venie nce
clo sing
Whe nth econ venie nce closing featur eis
oper ating,par tsof thebody could become
tr apped intheclosing area oftheside win‐
do wand thesliding sunroof. #
When thecon venie nce closing featur e
is operatin g,mon itor theent ire closing
pr ocess andmakesur eth at no body
par tsarein theclosing area. #
Press and hold theß buttononthe
Smar tKey .
The follo wing functionsar eper form ed:
R The vehicle isloc ked.
R The side windo wsareclo sed.
R The pano ramic sliding roof isclosed. #
Tointerru pt con venience closing: release
th eß button. #
Toclose thero ller sunblind s:press and
hold theß buttonagain.
% Con venie nce closing also func tions with
KEYLESS- GO(/ page70). Re
sol ving problems withtheside windo ws &
WARNIN GRisk ofbeco ming trap ped or
fa ta lly injured ifre ve rsing protect ion is
no tactiv ated
If yo uclo seaside windowagain imm ediat ely
af te rit has been blocked, theside windo w
will close withincr eased ormaximum forc e.
The reve rsing func tion isthen notactiv eand
body partsma ybecome trapped. #
Mak esur eth at no par tsof thebody are
in theclosing area. #
Tostop theclosing process, release the
butt onorpress thebutt onagain to
re open theside windo w. A
sid ewind owcann otbe closed andyoucan‐
no tsee thecaus e. #
Chec kto see whether anyobjec tsarein the
windo wguide. #
Adjus tth eside windo ws.
Ad jus tingthe side windo ws
If aside windo wisobs truct eddur ing closing and
re opens again immediat ely: #
Immediat elyaf te rth is, pull and hold thecor‐
re sponding buttonagain until theside win‐
do whas closed andhold thebutt onforat
lea stone moresecond (re-adjus tment).
The side windo wwill beclosed without the
aut omat icreve rsing func tion.
If th eside windo wisobs truct edagain and
re opens again immediat ely: #
Immediat elyaf te rth is, pull and hold thecor‐
re sponding buttonagain until theside win‐
do whas closed andhold thebutt onforat Opening
andclosi ng 79

leas
tone moreseco nd(follo w-up adjust‐
men t).
The side windowwill beclos edwithout the
aut omat icreve rsing func tion.
Th eside windo wscann otbe opened or
closed usingthecon venience opening fea‐
tur e.
Po ssible cause:
R The Smar tKey batt eryis we ak ordisc harged. #
Chec kth ebatt eryusing theindicat orlam p
(/ page66). #
Replace theSmar tKey batt ery, ifnec essar y
(/ page68). Slidin
gsunr oof Opening
andclosing theslidi ngsunr oof %
The term "slidin gsun roof" also refers to the
panor amaroof wit hpo we rtilt/sli dingpanel . &
WARNIN GRisk ofbeco ming trap ped
whe nth esliding sunroofisbeing opened
and closed
Body partsma ybecome trapped inthera ng e
of mo vement. #
Dur ing opening andclosing, makesur e
th at no body partsarein thera ng eof
mo vement. #
Release thebutt onimmediat elyif
somebody becomestrapped.
or #
Brief lypress thebutt oninanydir ect ion
dur ing automatic operation.
The opening orclosing process willbe
st opped. &
WARNIN GRisk ofbeco ming trap ped if
th esliding sunroofisoper ated bychil‐
dr en
Childr enoper atingth esliding sunroofcould
get caught inthemo ving parts,par ticular lyif
unatt ended. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eke ywit hyo uand lockth eve hicle. &
WARNIN GRisk ofbeco ming trap ped
whe nth ero ller sunblin dis being opened
and closed
Body partsma ybecom etrapped between
th ero ller sunblin dand frame orslidin gro of. #
When opening orclosing, makesur e
th at no body partsarein thero ller sun‐
blind' sra ng eof mo vement. #
Release thebutt onimmediat elyif
somebody becomestrapped.
or #
Brief lypress thebutt oninanydir ect ion
dur ing automatic operation.
The opening orclosing process willbe
st opped. 80
Opening andclosing

*
NO
TEMalfunctio ndu eto sno wand ice Sno
wand icemaycause thesliding sunroof
to malfu nction. #
Open thesliding sunroofonlyif it is free
of sno wand ice. *
NO
TEDama gecau sed byprotru ding
objec ts Objec
tsthat protru de from thesliding sun‐
ro of ma ydamag eth esealing strips. #
Donotallo wan ything toprotru de from
th esliding sunroof. *
NO
TEImpo rtant poin tsto remember
when aro of lugg agera ck isins talled When
aro of lugg agera ck isins talled, raising
or open ingthesliding sunroofmaybe limi‐
te d. #
Chec kwhe ther thesliding sunroofcan
be raised oropen edwhen aro of lug‐
ga ge rack isins talled. #
Ifin doubt, donotra ise oropen the
sliding sunroof. 1
Toraise
2 Toopen
3 Toclos e/lowe r Use
the0057 buttontooper ateth epanor ama
ro of wit hpo we rtilt/sli dingpanel andthero ller
sunblin d.
The panorama roof wit hpo we rtilt/sli dingpanel
can beoper ated only when thero ller sunblin dis
open . #
Chec kwhe ther thesliding sunroofcan be
ra ised oropen edwhen aro of lugg agera ck is
ins talled. #
Tostar taut omatic operation :pr ess the
0057 buttonbeyond thepoint ofresis tance
or pulland release it. #
Tointerru pt aut omatic operation :br ief ly
pr ess the0057 buttoninanydir ect ion.
The opening /closingpr ocess willbestop‐
ped.
Ve hicl eswith apanor amaroof wit hpo we r
til t/s lidin gpane l:The automatic raising featur e
is available onlywh en thesliding sunroofis
closed orraised. Open
ingand closing 81

Au
tomatic reve rsing funct ionoftheslidi ng
sunr oof
If an obs tacle obs tructs thesliding sunroofdur‐
ing theclosing process, thesliding sunroofwill
open again automaticall y.The automatic reve rs‐
ing func tion isonl yan aid and isno ta subs titute
fo ryo ur att entiven ess . #
Dur ing theclosing process, makesur eth at
no body partsarein theclosing area. &
WARNIN GRisk ofbeco ming trap ped
des pite there ve rsing func tion being
act ive
In par ticular ,th ere ve rsing func tion does not
re act :
R Tosof t,light andthin obje cts, e.g. fin‐
ge rs.
R Towa rdsth eend oftheclosing proce‐
dur e.
R Dur ing rese ttin g. #
Dur ing theclosing process, makesur e
th at no body partsarein theclosing
ar ea. #
Release thebutt onimmediat elyif
somebody becomestrapped.
or #
Brief lypress thebutt oninanydir ect ion
dur ing automatic operation.
The closing process willbestopped. Au
tomatic reve rsing funct ionofthero ller
sunblind
If an obs tacle obs tructs thero ller sunblin ddur‐
ing theclosing process, thero ller sunblin dwill
open again automat ically.The automatic reve rs‐
ing func tion isonl yan aid and isno ta subs titute
fo ryo ur att entiven ess . #
When closingth ero ller sunblin d,mak esur e
th at no body partsarein thera ng eof mo ve‐
ment. &
WARNIN GRisk ofbeco ming trap ped
des pite reve rsing func tion
In par ticular ,th ere ve rsing func tion does not
re act tosof t,light andthin obje cts, e.g. fin‐
ge rs. #
When closing thero ller sunblin d,mak e
sur eth at no body partsarein thera ng e
of mo vement. #
Release thebutt onimmediat elyif
somebody becomestrapped.
or #
Brief lypress thebutt oninanydir ect ion
dur ing theaut omatic closing process.
The closing process willbestopped. Au
tomatic functionsof the slidi ng sun roof %
The term "slidin gsun roof" also refers to the
panor amaroof wit hpo we rtilt/sli dingpanel .
Ra inclosing functionwhen driving
Ve hicl eswith apanor amaroof wit hpo we r
til t/s lidin gpane l:If it star ts to rain, thera ised
slidin gsunr oofwill automat icallybe lowe red
while theve hicle isin mo tion.
Au tomatic lowe ring function
Ve hicl eswith apanor amaroof wit hpo we r
til t/s lidin gpane l:If th esliding sunroofisraised
at there ar,it will automat icallybe lowe red 82
Openin gand closing