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

Indicat
orlam p1 flashes whentheAT Asy stem
is armed.
The ATAsy stem isdeactiv ated aut omaticall yin
th efo llo wing situat ions:
R Afterunloc kingtheve hicle withth eSmar t‐
Ke y
R Afterunloc kingtheve hicle using KEYLES S-
GO R
Afterpr essing thest ar t/ stop butt onwithth e
Smar tKey inthestow agecom partment
(/ page13 2)
% WhentheMer cedes‑ Benzemergency call
sy stem isactiv eand thealar mstay son for
mor eth an 30 sec onds, ames sageis aut o‐
mat icall ysen tto theCus tomer Assis tance
Ce nter (/ page 357).
% Inthecase ofsevere batt erydisc harging,
th eanti- theftalar msystem isaut omaticall y
deactiv ated tofacil itat eth ene xt engine
st ar t.
Deact ivat ing theATA #
Press theÜ, ßor008B buttononthe
Smar tKey .
or #
Press thest ar t/ stop butt onwithth eSmar t‐
Ke yin themar kedspace (/page13 2)
Dea ctivat ingth eala rm using KEYLESS-GO #
Grasp theoutside doorhandle withth e
Smar tKey outside theve hicle. Fu
nction oftheto w- aw ay alar m %
This function mayno tbe available inall
coun tries.
An audible andvisual alarmistrigg ered ifan
alt eratio nto your vehicle's angleof inclination is
de tected whi letheto w- aw ay alar misarmed.
The tow- aw ay alar misaut omat icallyar med afte r
appr oximat ely60 seco nds:
R Afterloc king theve hicle withth eSmar tKey
R Afterloc king theve hicle using KEYLES S-GO
The tow- aw ay alar mison lyarmed when thefo l‐
lo wing compone ntsar eclos ed:
R The door s
R The trunk lid
The tow- aw ay alar misaut omat icallydeac tiva‐
te d:
R Afterpr essing theÜ or008B buttonon
th eSmar tKey
R Afterpr essing thest ar t/ stop butt onwithth e
Smar tKey inthemar kedspace (/page13 2) Op
ening an dclos ing 87

R
Afterunloc kingtheve hicle using KEYLES S-
GO
R When usingHAND S-FREE ACCES S
In fo rm atio non detecting damag eon apa rked
ve hicle (/page15 8). Ar
min g/dis armin gthe tow- aw ay alar m Mul
timedi asy stem:
4 © 5
Set ting s5
Quick Access #
Activateor deacti vate Tow-away Protection.
The tow- aw ay alar misarmed again inthefo llo w‐
ing cases :
R The vehicle isunloc kedag ain.
R Adoor isopened.
R The vehicle isloc kedag ain.
% Ifqu ick acc ess isuna vailable, selectth e
Vehicle submenu intheSet ting smain menu
to arm or disar mtheto w- aw ay alar m. Fu
nction oftheint erior motion sensor %
This function mayno tbe available inall
coun tries.
When theint erior motion sensor isactiv ated, a
visual andaudible alarmistrigg ered ifmo ve‐
ment isde tected intheve hicle interior .
The interior motion sensor isactiv ated aut omati‐
cally afte rapp roxima tely tenseco nds:
R afte rloc king theve hicle withth eSmar tKey
R afte rloc king theve hicle using KEYLES S-GO
The interior motion sensor isonl yactiv ated
when thefo llo wing compone ntsar eclos ed:
R thedoor s
R thetrunk lid
The interior motion sensor isaut omaticall ydeac‐
tiv ated:
R afte rpr essing theÜ or008B buttonon
th eSmar tKey
R afte rpr essing thest ar t/ stop butt onwithth e
Smar tKey inthestow agecom partment
(/ page13 2) R
afte runloc kingtheve hicle using KEYLES S-
GO
R when usingHAND S-FREE ACCES S
The follo wing situat ionscanlead toafa lse
alar m:
R movingobje ctssuc has masc otsin theve hi‐
cle interior
R when theside windo wisopen
R when thepanor amicsliding sunroofisopen Ac
tiv atin g/deac tivatin gthe inte rior mo tion
sensor Mult
imedia system:
4 © 5
Set ting s5
Quick Access #
Activateor deacti vate Interior MotionSen-
sor.
The interior motion sensor isactiv ated again in
th efo llo wing cases :
R The vehicle isunloc kedag ain.
R Adoor isopened.
R The vehicle isloc kedag ain. 88
Openin gand closin g

%
Ifqu ick acc ess isuna vailable, selectth e
Vehicle menuunder Settings toact ivat eor
deac tivateth eint erior motion sensor . Openin
gand closing 89

No
teson thecor rect driver' sseat position &
WARNIN GRisk ofinju ryfrom adju sting
th eve hicle settin gswhile theve hicle isin
mo tion
Yo uco uld lose contro lof theve hicle inthe
fo llo wing situat ions:
R ifyo uadj ustth edr iver's seat, thehead
re stra int ,th esteer ing wheel orthemir ror
while theve hicle isin mo tion
R ifyo ufa sten your seat beltwhile theve hi‐
cle isin mo tion #
Beforest ar tin gth eengine: adjustth e
dr iver's seat, thehead restra int ,th e
st eer ing wheel orthemir rorand fasten
yo ur seat belt. En
sur eth efo llo wing when adjustingst eer ing
wheel 1,seat belt2and driver's seat 3:
R Youar esit tin gas faraw ay from thedr iver's
airbag aspossible, taking thefo llo wing
point sint ocon sider ation .
R Youar esit tin gin an upr ight position
R Your thighs areslight lysuppor tedby theseat
cushion R
Your legs areno tfull yex tende dand youcan
depr essthepedals proper ly
R The backof your head issuppo rted ateye
le ve lby thecent erofthehead restra int
R Youcan hold thesteer ing wheel withyo ur
ar ms sligh tly ben t
R Youcan moveyour legs freel y
R Youcan seeallthedispla yson theins tru‐
ment clusterclea rly
R Youha ve agood overvie wof thetra ffic con ‐
dition s
R Your seat beltsitssn ug lyag ains tyo ur body
and pass esacr oss thecent erofyour sho ul‐
der and across your hips inthepelvic area 90
Seats andstow ing

Seats
Ad
jus tingthe fron tse at mec hanicall y(w ith
Se at Co mf ortPa ckag e) #
Toadjus tth eseat cushionlengt h:liftle ve r
1 and slide thefront sect ionoftheseat
cushion forw ards orbac kwards. #
Toadjus tth eseat fore -and-af tposi tion:
lif tle ve r2 and slideth eseat intoth e
desir edposition . #
Mak esur eth at theseat iseng aged. #
Toadjus tth eseat cushioninclina tion:
tur nhand wheel 3forw ards and backwards
unt ilth edesir edposition hasbeen reac hed. #
Toadjus tth eseat heigh t:push orpull leve r
4 untilth edesir edposition hasbeen
re ac hed. #
Toadjus tth eseat backres tinclina tion:
tur nhand wheel 5forw ards and backwards
unt ilth edesir edposition hasbeen reac hed. Ad
jus tingthe fron tse at elec tric all y 1
Seatba ckrest inc linat ion
2 Seat height
3 Seat cushio ninc linat ion
4 Seat fore -and -aftpo sitio n #
Save these ttings withth ememor yfunc tion
(/ page98). Seats
andstow ing 91

Ad
jus tingthe 4-waylum bar support 1
Raise
2 Soften
3 Lowe r
4 Harden #
Usingbuttons 1to4 ,adjus tth econ tour
of thebac kres tindividuall yto suit your bac k. Head
restra ints Ad
jus tingthe fron tse at head restra ints
mec hanica lly &
WARNIN GRisk ofinju ryfrom adju sting
th eve hicle settin gswhile theve hicle isin
mo tion
Yo uco uld lose contro lof theve hicle inthe
fo llo wing situat ions:
R ifyo uadj ustth edr iver's seat, thehead
re stra int ,th esteer ing wheel orthemir ror
while theve hicle isin mo tion
R ifyo ufa sten your seat beltwhile theve hi‐
cle isin mo tion #
Beforest ar tin gth eengine: adjustth e
dr iver's seat, thehead restra int ,th e
st eer ing wheel orthemir rorand fasten
yo ur seat belt. &
WARNIN GRisk ofinju rydue tohead
re stra int swhic har eno tins talled orare
adjus tedincor rectl y
If hea dre stra int sar eno tins talled orare
adjus tedincor rectly ,th ehead restra int scan ‐
no tpr ov ide protect ion asintended.
Ther eis an incr eased risk ofinjur yin the
head andneckar ea, e.g. intheeve ntofan
acci dent or wh en braki ng. #
Alw aysdr ive wit hth ehead restra int s
ins talled. #
Beforedr ivin gof f,mak esur efo rev ery
ve hicle occupant that thecent erofthe
head restra int suppor tsthebac kof the
head atabout eyeleve l. Do
notint erch ang eth ehead restra int sof the
fr ont and rear seat s.Ot her wise, youwill notbe
able toadjus tth eheight andangleof thehead
re stra int scor rectl y.
Ad jus tth ehead restra int fore -and -aftpo sitio nso
th at itis as clo seasposs ibletothebac kof your
head. 92
Seatsand stow ing

#
Toraise: pullthehead restra int up. #
Tolowe r:press release knob 1 inthedir ec‐
tion ofthear row and push thehead restra int
do wn. #
Tomo veforw ards: press release knob 2
and pullthehead restra int forw ards. #
Tomo vebac kwards: press release knob 2
and push thehead restra int bac kwards. Ad
jus tingthe head restra ints ofthere ar
seats mechanic ally #
Toraise: pullthehead restra int up. #
Tolowe r:press there lease knob 1 inthe
dir ect ion ofthear row and push thehead
re stra int down. Ins
talling/r emoving there ar seat head
re stra ints
Re mo ving #
Release there ar seat backres tand fold itfor‐
wa rdsslightly (/page10 2). #
Pullth ehead restra int upw ards asfaras it
wil lgo. Seats
andstow ing 93

#
Push release knob 1 inthedir ect ion ofthe
ar row and pulloutthehead restra int .
Ins talling #
Insertth ehead restra int suc hth at the
no tches onthebar areon thelef twhen
vie we din thedir ect ion oftra vel. #
Push thehead restra int down untilit
eng ages. #
Foldthere ar seat backres tbac kunt ilit
eng ages. Conf
iguringtheseat settings Multi
media system:
4 © 5
Comfort 5
Seat Comfort
Ad jus tingthe backres tco ntou rin the lumb ar
re gion oftheseat backres t(lum bar) #
Sele ctLumbar . #
Sele ctthese ttings Z forth edesir edseat. #
Adjus tth eair cushions . Ad
jus tingthe backres tsi de bolste rs #
Select SideBol sters . #
Adjus tth eair cushion forth edesir edseat. Selecting
thema ssag epr og ram forthe fron t
se ats Mu
ltimed iasystem:
4 © 5
Comfort 5
Massage #
Select WaveMassage orPulsating Massage. #
Startth epr ogr am forth edesir edseat 0065. #
Tosetth ema ssag eint ensit y:switc hHigh
Inten sityonoroff. Re
setting seat settings Multimedia
system:
4 © 5
Comfort 5
Seat Comfort #
Select Reset. #
Select 00D1forth edesir edseat.
The settings forth eselect edseat arere se t. Switc
hingtheseat heatingon/of f &
WARNIN GRisk ofburnsdue torepeat‐
edl yswitc hingontheseat heating
Re peat edly switc hingontheseat heating can
cause theseat cushion andseat backres t
padding tobecome very hot.
The healt hof per sons withlimit edtemp era‐
tur esensit ivityoralimit edability toreact to
high temp eratur esma ybe affect ed orthey
ma yeve nsu ffer bur n-lik einjur ies. #
Donotre peat edlyswitc hon theseat
heating. To
protect agains tove rheating, theseat heating
ma ybe temp orarily deactiv ated afte rit is
swi tched onrepeat edly.
* NO
TEDama getotheseats caused by
object sor document swhen theseat
heating isswitc hedon When
theseat heating isswitc hedon,over‐
heati ngmayoccur duetoobject sor docu‐ 94
Seatsand stow ing