ignition MERCEDES-BENZ A-CLASS SEDAN 2020 Owner's Manual

Re
stra int system functiona lity When
theignition isswitc hedon,aself-t estis
per form ed, during whic hth e0075 restra int sys‐
te m wa rning lam plight sup. Itgoes outnolater
th an afe w sec ond saf te rth eve hicle isstar ted.
The com ponen tsof there stra int system areth en
func tional. Malfu
nctioning restra int system A
malfun ction has occurredin there stra int sys‐
te m if:
R The 0075 restra int system warning lam p
does notlight upwhen theignition is
switc hedon
R The 0075 restra int system warning lam p
light sup con tinuousl yor repeat edly during a
jour ney &
WARNIN GRisk ofinju rydue tomalfu nc‐
tions inthere stra int system
If th ere stra int system ismalfunct ioning,
re stra int system com ponen tsma ybe trig‐ ge
redunint entionall yor ma yno tdeplo yas
int ended during anacciden t.This mayaf fect
th eEmer gency Tensi oni ng Device sor air‐
ba gs, forex am ple. #
Have there stra int system checkedand
re pair edimmediat elyat aqu alif ied spe‐
cialis two rkshop. Fu
nction ofthere stra int system inan acci‐
dent Ho
wthere stra int system worksis de term ined by
th ese verity of theim pact detected and thetype
of acciden tantic ipated:
R Front alim pact
R Rear impact
R Sideim pact
R Rollover
The activ ation thre sholds forth ecom ponen tsof
th ere stra int system arede term ined based on
th eev aluatio nof thesensor values measur edat
va rious points intheve hicle. Thisprocess ispre-
em ptive in nat ure. The trigg ering/ deplo yment ofth
ecom ponen tsof there stra int system mus t
ta ke place ingood timeatthest ar tof thecolli‐
sion.
Fa ctor swhi chcan only besee nand measured
af te ra colli sion hasoccur reddo notpla ya deci‐
siv ero le in thedeplo yment ofan airbag. Nordo
th ey prov ide anindic ation ofairbag deployment .
The vehicle maybe def ormed signif icantl ywit h‐
out anairbag beingdeployed. This isthecase if
onl ypar tswhic har ere lativ elyeasil ydef ormed
ar eaf fect ed and thera te ofvehicle deceler ation
is no thigh. Conversely ,an airbag maybe
deplo yedev en though theve hicle suffers onl y
minor deformation. Ifve ry rigid vehicle parts
suc has longitudinal membersar ehit, forex am‐
ple, this ma yre sult insuf ficie ntly highleve ls of
ve hicle deceler ation. Occupant
safety 35

R
The front passeng ersits insuc hawa yth at
th eir weight israised from thesitt ing sur‐
fa ce. &
WARNIN GRisk ofinju ryor deat hdue to
deactiv ated front passeng erairbag
If th ePA SSENGER AIRBAGOF Find icat or
lam pis lit,th efront passeng erairbag isdisa‐
bled. Itwill notbe deplo yedin theev ent of
an acciden tand cann otper form itsintended
pr otect ive func tion.
A per son inthefront passeng erseat could
th en, forex am ple, com eint ocon tact with
th eve hicle interior ,especially ifth eper son is
sitt ing tooclose tothecoc kpit.
If th efront passeng erseat isoccupied,
alw aysensur eth at:
R The classificat ion oftheper son inthe
fr ont passeng ersea tis cor rect and the
fr ont passeng erairb agisenabl edordisa ‐
ble din accor dance withth eper son inthe
fr ont passeng ersea t. R
The front passeng ersea thas been moved
as farbac kas possi ble.
R The person isseat edcor rectl y. #
Ensu re,bo th bef oreand during thejour‐
ne y,that thest atus ofthefront
passeng erairbag iscor rect. If
th efront passeng erseat isoccupied, theclas‐
sif ication oftheper son orchild restra int system
on thefront passeng erseat take splace afte rth e
fr ont passeng erairb agshut offself-t est.The
PA SSENGER AIRBAGind icat orlam psdispla yth e
st atus ofthefront passeng erairbag.
Alw aysobser vetheno teson thefunc tion ofthe
PA SSENGER AIRBAGind icat orlam ps
(/ page45). Fu
nction ofthePA SSEN GERAIRBAGindic a‐
to rlam ps Se
lf-te st of aut oma ticfront passeng erair bag
shu toff
When theignition isswitc hedon,aself-t estis
per form ed dur ing whic hth etw oPA SSENGER
AIR BAGON and OFFind icat orlam pslight up
simul taneou sly. Occu
pant safety 45

Side
windo ws Opening
andclosing theside windo ws &
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. #
Ifsomeone istrappe d,release thebut‐
to nimm ediate ly or pullit in order to
clos eth eside windo wag ain. &
WARNIN GRisk ofbeco ming trap ped
whe nclos ingasid ewi ndo w
Whe nclos ingasid ewi ndo w,body parts
could betrapped intheclosing area inthe
pr ocess. #
When closing,mak esur eth at no body
par tsarein theclosing area. #
Ifsomeon eis tra pped, release thebut‐
to nimm ediate ly or pres sth ebutt onin
or der toreopen theside windo w. &
WARNIN GRisk ofbeco ming trap ped
whe nch ildr enopera tetheside windo ws
Childr encould become trapped ifth ey oper‐
at eth eside windo ws,par ticular lywhen unat‐
te nde d. #
Activateth ech ild safetyloc kfo rth e
re ar side windows. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. Re
quirement s:
R The powe rsupp lyor theignition isswitc hed
on. 1
Closes
2 Opens
The buttons onthedr iver's door take prece‐
denc e. #
Tostar taut omatic operation :pr ess the
0062 buttonbeyond thepoint ofresis tance
or pulland release it. 78
Opening andclosing

Pr
oblem
Possible causes/conseq uencesand0050 0050
Solutions
Ve hicl eswith apanor amicsliding
sunr oof:The sliding sunrooforthe
ro ller sunblin ddoes notopera te
smoo thly. #
Pulland hold the0057 buttonlittle bylittleunt ilth ero ller sunblin dis full yclos ed. #
Use automat icopera tiontofully open andthen close thesliding sunroof. Anti-t
heftpr otection Fu
nction oftheimm obiliz er The
immo bilizerpreve nts your vehicle from being
st ar tedwit hout thecor rect Smar tKey .
The immobilizer isaut omaticall yactiv ated when
th eignition isswitc hedoffand deactiv ated when
th eignition isswitc hedon.
When leaving theve hicle, alwaysta ke theSmar t‐
Ke ywit hyo uand lockth eve hicle. Anyone can
st ar tth eengine ifava lid Smar tKey has been left
inside theve hicle.
% Intheeve nttheengine cannotbe star ted
(y et theve hicle ’sbatt eryis ch arge d), the
sy stem isno toper ational. Contactan
aut hor ized Mercedes- BenzCenteror call 1-8
00-FOR-MER Cedes (intheUS A)or
1-8 00-387-0 100(in Canada). ATA
(anti-thef tala rm system) Fu
nction oftheATA system
If th eATA system isarmed, avisual andaudible
alar mistrigg ered inthefo llo wing situat ions:
R When adoor isopen ed
R When thetrunk lidisopened
R When thehood isopened
R When theint erior motion sensor istrigg ered
(/ page88)
R When theto w- aw ay alar mistrigg ered
(/ page87 ) The
ATAsy stem isarmed automatic allyafte r
appr oximat elyte nseco ndsinthefo llo wing situa‐
tion s:
R Afterloc king theve hicle withth eSmar tKey
R Afterloc king theve hicle using KEYLES S-GO 86
Opening andclosing

Switc
hingthest eer ing wheel heateron/of f Re
quirement s:
R The ignit ionisswitc hedon. #
Push theswitc hint oposition 1or2.
If indicat orlam p3 lights up,thesteer ing
wheel heaterisswitc hedon. When
youswit chtheignition off,th esteer ing
wheel heaterwill switc hof f. Easy
entryand exitfeatur e Usi
ngtheeasy entryand exitfeatur e &
WARNIN GRisk ofacci dent whendr ivi ng
of fwhi lead jus ting theeasy exitfeatur e
‑ If yo udr ive of fwhile theeasy entryand exit
fe atur eis mak ingadjus tment s,yo uco uld
lose contro lof theve hicle. #
Alw ayswa itunt ilth eadjus tmentpr oc‐
ess iscom pletebef oredr iving off. &
WARNIN GRisk ofbeco ming trap ped
whi lead jus ting theeasy entryand exit
fe atur e
When theeasy entryand exitfeatur eadjus ts
th edr iver's seat, youand other vehicle occu‐
pants –par ticular lych ildr en–could becom e
tr apped. #
Dur ing theadjus tmentpr ocess ofthe
easy entryand exitfeatur e,mak esur e th
at no onehas anybody partsinthe
sw eep oftheseat.
If th er eis arisk ofbecoming trapped bythe
dr iver's seat: #
Press theseat adjus tmentswitc h.
The adjus tmentpr ocess isstopped. Yo
ucan stop theadjus tmentpr ocess bypress‐
ing one ofthememor yfunc tion position
switc hes. &
WARNIN GRisk ofbeco ming trap ped
du ring acti vatio nof theeasy entryand
ex itfeatur eby childr en
If ch ildr enact ivat eth eeasy entryand exit
fe atur e,they can beco metrap ped ,pa rticu‐
lar lywhen unattende d. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. Seats
andstow ing 97

When
theeasy entryand exitfeatur eis act ive,
th edr iver's seat willmovebac kwards and the
bac kres twill bemo vedto ast eeper position
when:
R Youswit chtheignition offwit hth edr iver's
door open
R Youopen thedr iver's door withth eignition
switc hedoff
% The driver's seat willmovebac kwards onl yif
it is no talr eady inthere ar mos tposit ion.
The seat backres twill moveforw ards onlyif
it is no talr eady inthefo re mos tposi tion.
The driver's seat willmo vebac kto thelas tdr ive
position when:
R Youswit chtheignition onwithth edr iver's
door closed
R Youclo sethedr iver's door withth eignition
switc hedon
The lastdr ive position willbestor ed when:
R Youswit chtheignition off
R Youcall uptheseat settings viathememor y
func tion R
Yousa ve theseat setting using thememor y
func tion Se
tting theeasy entryand exitfeatur e Mul
timedi asy stem:
4 © 5
Set ting s5
Vehicle
5 AUTO. SEAT ADJUSTME NT
5 Easy Entry/E xit #
Activateor deacti vate thefunc tion. Oper
ating themem oryfun ction &
WARNIN GRisk ofan acci dent ifth e
memor yfunction isused whiledr iving
If yo uuse thememor yfunc tion onthedr iv‐
er's side while driving, youco uld lose contro l
of theve hicle asare sult oftheadjus tments
being made. #
Onlyuse thememor yfunc tion onthe
dr iver's side when theve hicle isstatio n‐
ar y. &
WARNIN GRisk ofentr apment whense t‐
ting theseat withth ememor yfunc tion
When thememor yfunc tion adjus tstheseat,
yo uand other vehicle occupants –par ticu‐
lar lych ildr en–could becom etrapped. #
Dur ing theadjus tmentpr ocess ofthe
memor yfunction, makesur eth at no
on ehas anybody partsinthesw eep of
th eseat. #
Ifsomeon ebecomes trapped, press a
pr ese tposition buttonorseat adjus t‐
ment switchimmediat ely. &
WARNIN GRisk ofentr apment ifth e
memor yfunction isactiv ated bychildr en
Childr encould becom etrapped ifth ey act i‐
va te thememor yfunc tion,par ticular lywhen
unatt ended. #
Neverlea vechildr enunat tende din the
ve hicle. 98
Seats andstow ing

Using
the12 Vso cket inthetrunk Re
quirement s:
R Onlycon nectde vices uptoamax imum of
18 0W (15 A). #
Liftup cap 1ofthesoc ketand insertth e
plug ofthede vice. USB
portin there ar passe nger comp artment %
Dependi ngon theve hicle equipment, the
design ofthestow agecom partment and the
num berof USB ports in there ar passe nger
com partment centerconsole mayva ry. If
th eignition isswitc hedonyoucan charge a
USB device, e.g.amobile phone, atUSB ports
1 using asuit able chargin gcable . Wi
reless chargin gof themobil eph one and
connecti onwit hth eex terior ant enna No
teson wir elessl ych argin gth emobil e
ph one &
WARNIN GRisk ofinju rydue toobject s
being stowe dinco rrect ly
If objects intheve hicle interior arestowe d
inc orrectly ,th ey can slide orbe throw n
ar oun dand hitvehicle occupants. Inaddi‐
tion, cupholder s,open stow agespac esand
mobi lephon ere cep tacle scanno tal wa ys
re tain all obje ctsth ey cont ain.
The reisarisk ofinjur y,par ticular lyin the
ev ent ofsudden braking orasudden chang e
in dir ect ion. #
Alw aysst ow object sso that they can‐
no tbe throw nar ou nd insuch situa‐
tions. #
Alw aysmak esur eth at obj ect sdo not
pr otru de from stow agespac es,lugg age
ne ts or stow agene ts. Seat
sand stow ing 10
9

R
Obser vetheno teson sur round lighting
(/ page11 8).
Au tomatic drivin glights function
The parking lam ps,low beam anddaytime run‐
ning lamp swill beswitc hedonaut omatically
depending ontheignition status andtheambi‐
ent light. &
WARNIN GRisk ofacci dent whenth elow
beam isswitc hedoffin poor visibility
When thelight switc his setto 0058 ,th elow
beam mayno tbe switc hedonaut omaticall y
if th er eis fog, sno wor other causes ofpoor
visibili tysuc has spr ay. #
Insuc hcases, turnth elight switc hto
0058 . The
automatic driving lights areonl yan aid. You
ar ere sponsible forve hicle lighting.
Switc hingthere ar foglights onoroff
Re quirement s:
R The light switc his in the0058 or0058 posi‐
tion . #
Press the 005E button.
Please observethecount ry-spe cificlaws onthe
use ofrear foglam ps. Oper
ating thecombin ation switc hfo rthe
li ghts 1
Highbe am
2 Turn signal light,right
3 High-beam flasher
4 Turn signal light,left #
Use thecombin ationswitchto act ivat eth e
desir edfunc tion. 11
4
Light andvisib ility

Wi
ndshield wiperandwindshield washer
sy stem Switc
hingthewindsh ieldwiper son/of f 0047
005AWindsh ield wipe rs off
0048 0062 Automatic wiping, normal
0049 0063 Automatic wiping, freq uent 004A
00AA Continuo uswip ing, slow
004B 00A9 Continuo uswip ing, fast #
Turn thecombin ationswitchto thecor rect
pos ition 0047 -004B. #
Singlewipe/w ashing: push thebutt onon
th ecombin ationswitchin thedir ect ion of
ar row 1.
R 00D3 Singlewipe
R 00D4 Wipes withwa sher fluid Cha
nging thewindsh ieldwiper blades &
WARNIN GRisk ofbeco ming trap ped if
th ewindshield wipersar eswitc hedon
while wiper blades arebeing replaced
If th ewindshield wipersbegin tomo vewhile
yo uar ech ang ingthewiper blades, youcan
be trapped bythewiper arm. #
Alw aysswitc hof fth ewindshield wipers
and theignition beforech ang ingthe
wiper blades. Mo
ving thewiper arms intoth ere plac eme nt
pos ition #
Swi tchth eignition onand switc hof fag ain
immediat ely. #
Within around 15seconds, press the00D4
butt ononthecombin ationswitchfo rapp rox‐
ima tely thre esecon ds(/ page12 0).
The wiperarms willmo veintoth ere place‐
ment position .
Re mo ving the wiper blade s #
Foldthewiper arms away from thewind‐
shield. 12
0
Light andvisib ility

#
Hold thewiper arm wit hone hand. With the
ot her hand, turnth ewiper bladeinthedir ec‐
tion ofarrow 1away from thewiper arm as
fa ras itwil lgo. #
Slide catch2 inthedir ect ion ofarro w 3
unt ilit eng ages inthere mo valposit ion. #
Remo vethewiper bladefrom thewiper arm
in thedir ect ion ofarrow 4. Ins
tallin gth ewiper blades #
Inser tth ene wwiper bladeintoth ewiper
ar m inthedir ect ion ofarrow 1. #
Slide catc h2 inthedir ect ion ofarro w 3
unt ilit eng ages intheloc king position . #
Mak esur eth at thewiper bladeisseat edcor‐
re ctly . #
Foldthewiper arms backont oth ewind‐
shield. #
Switc hon theignition . #
Press the00D4 buttononthecombin ation
switc h(/ page12 0).
Th ewip erarms willmo veintoth eor iginal
position . #
Switc hof fth eignition . Light
andvisibility 12
1