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

ing
wheel, theBeginn ingEmer gencySt op mes‐
sag eappear sin themultifunc tiondispla y.Ifth e
dr iver still does notre spond, ActiveDis tance
Assi stDIS TRONI Creduces thespeed. Thevehi‐
cle isdeceler ated instag es toast ands till.
De pen dingon thecount ry,at speeds below
40 mph(60 km/h) thehazar dwa rning light s
switc hon aut omat ically.
When theve hicle isstatio nary,thefo llo wing
act ions arecar ried out :
R The vehicle issecur edwithth eelectr icpar k‐
ing brak e
R ActiveDis tance AssistDIS TRONI Cis end ed
R The vehicle isunloc ked
R Ifpossib le,an emer gency callis place dto
th eMer cedes- Benzemergency callcent er
The driver can cance lth edeceler ationatany
time byper form ing one ofthefo llo wing actions :
R Steer ing
R Braking oracceler ating
R Pressing ast eer ing-wheel button
R Oper ating Touc hCon trol R
Activati ng ordeacti vating ActiveDis tance
Assi stDIS TRONI C Ov
erview ofActiv eDi stance Assist
DI ST RO NIC displa ysintheins trum ent clus‐
te r The
assis tance grap hicand thest atus displa y
sho wthest atus ofthefo llo wing functionsin the
ins trumen tclus ter:
R ActiveDis tan ceAssi stDIS TRONI C
R Route-based speedadap tatio n
R ActiveSt eer ing Assis t Assis
tantdispla y 1
Route-based speedadap tatio n:typ eof route
eve nt
2 Vehicle infront
3 Distance indicator
4 Setspe cified dist anc e
5 ActiveLa ne Chang eAssi stlane chang edis‐
pla y Dr
ivin gand parking18
3

Ac
tiv eDi stance AssistDI ST RO NIC status dis‐
pla yand route-base dspee dadap tation 1
ActiveDis tance AssistDIS TRONI Csel ect ed,
se tsp eci fied distance (numbe rof seg ments
be low theve hicle)
2 ActiveDis tance AssistDIS TRONI Cde acti va‐
te d, speed stor ed 3
ActiveDis tance AssistDIS TRONI Cacti ve,
speed stor ed, novehicle detected (brigh t
ve hicle symbol)
4 ActiveDis tance AssistDIS TRONI Cacti ve,
speed stor ed, vehicle detected (green vehi‐
cle symbol)
5 ActiveDis tance AssistDIS TRONI Cand route-
based speedadap tatio nacti ve,speed stor ed
% Onhighw aysor high-speed major roads, the
gr een ç vehicle symbol isdispla yedcy cli‐
cally when theve hicle isready topull away.
% Ifyo udepr esstheacceler ator pedal beyond
th ese tting oftheAc tiveDis tance Assist
DIS TRONI C,thesy stem isswitc hedtopas‐
siv emode. Theç Suspen dedmessag e
appear sin themultifunc tiondispla y.
Speedome ter
The stor ed speed ishighlight edon thespeedom‐
et er.If th espeed oftheve hicle infront orthe
speed adjustment isless than thestor ed speed
due tothero uteeve ntahead, thesegment sin
th espeedome terlig ht up. Deactiv ationofActive
Dis tance AssistDIS TRONI C,as wellas altera‐
tion sto thespeed duetomanua lor automatic adop
tionofthespeed limit,aredispla yedin the
contr olfeedbac kof themultifunc tiondispla yon
a sing leline.
Ac tiv eSte ering Assis tst atus displa y 1
Gray steer ing wheel: ActiveSt eer ing Assis t
switc hedonand passiv e
2 Green steer ing wheel: ActiveSt eer ing Assis t
switc hedonand activ e
3 Flashing steer ing wheel: prom pttothedr iver
to act ivel ycon firm ortransition from activ e
to passiv est atus ,sy stem limits detected
Dur ing thetransition from activ eto passiv est a‐
tus ,symbo l3 issho wnasenl arge dand flash‐ 18
4
Driving and parking

ing.
Onceth esy stem ispassiv e,symbol 1is
sho wnasgray inthemultifunc tiondispla y. Fu
nction ofHill StartAss ist Hill
StartAs sis tholds theve hicle fora shor t
time when pulling away on ahill under thefo l‐
lo wing condition s:
R Vehicl eswith automatic transmiss ion:
The transmis sionisin posi tion 005Bor005E.
R The electricpar king brak eis released.
This gives youen ough timeto mo veyour foot
fr om thebr ak epedal totheaccelera torpeda l
and depr essitbef oreth eve hicle begins toroll
aw ay. &
WARNIN GRisk ofacci dent andinjury
due totheve hicle rolling away
Af tera shor ttime, HillStartAs sis tno longer
holds theve hicle anditcan rollaw ay. #
Ther efor e, swif tly mo veyour foot from
th ebr ak epedal totheacceler ator pedal.
Neveratt em pttolea vetheve hi‐
cle ifit is being heldbyHillSt artAs sis t. HOLD
functi on HOLD
functi on
The HOL Dfun ction holds theve hicle atast and‐
st ill wit hout requ iring youto depr essthebr ak e
pedal, e.g.while waitin gin traf fic.
The HOLD functionisonly anaid. The responsi‐
bility forth eve hicle safely standi ngstill remains
wit hth edr iver .
Sy stem limit s
The HOL Dfun ction isonl yint end edtoprov ide
assis tance when drivi ng and isno ta su fficien t
mean sof saf eguar dingtheve hicle agains tro lling
aw ay when statio nary.
R The incline mustno tbe great erthan 30%. Ac
tiv atin g/deac tivatin gthe HOL Dfun ction &
WARNIN GRisk ofan acci dent dueto the
HOLD functio nbei ng activ ated whe nyo u
lea vetheve hicle
If yo ulea vetheve hicle while onlyth eHOLD
func tion isbraking theve hicle, theve hicle
can rollaw ay inthefo llo wing situat ions:
R Ifth er eis amalfunct ioninthesy stem or
in thepo we rsupp ly.
R Ifth eHOLD function isdeactiv ated by
depr essing theacceler ator pedal orbrak e
pedal, e.g.byave hicle occupant. #
Alw aysdeactiv ateth eHOLD function
and secur eth eve hicle agains tro lling
aw ay bef orelea ving theve hicle. Dr
iving andparking 18
5

*
NO
TEDama gefrom automatic braking If
one ofthefo llo wing functionsis switc hed
on, theve hicle brak es aut omatically incer‐
ta in situat ions:
R ActiveBr ak eAssi st
R ActiveDis tance AssistDIS TRONI C
R HOLD functio n
R ActivePa rking Assist
To avo iddamag eto theve hicle, deactiv ate
th ese systems inthefo llo wing orsimilar sit‐
uation s: #
Dur ing towing #
Inacar wash Re
quirement s:
R The vehicle isstatio nary.
R The driver's door isclosed ortheseat belton
th edr iver's side isfastened.
R The engine isrunning orhasbe en automati‐
cally switc hedoffby theEC Ostar t/ stop
funct ion. R
The electr icpar king brak eis released.
R ActiveDis tance AssistDIS TRONI Cis de acti ‐
va ted.
R Vehicl eswith automatic transmiss ion:
The transmis sionisin posi tion 005B,005Eor005C
Ac tiv atin gthe HOL Dfunc tion #
Dep ress thebr ak epedal andafte ra shor t
time quickl ydepr essfurther until the00D9
displa yappear sin themultifunc tiondispla y. #
Release thebr ak epedal.
Deactiv atingtheHOLD function #
Depr esstheacceler ator pedal topull away.
or #
Depr essthebr ak epedal untilthe00D9 dis‐
pla ydisappear sfrom themultifunc tiondis‐
pla y.
The HOLD functionisdeactiv ated inthefo llo w‐
ing situat ions:
R ActiveDis tance AssistDIS TRONI Cis acti va‐
te d.
R Vehicl eswith automatic transmiss ion:
The transmis sionisswi tched toposition 005D.R
The vehicle issecur edwithth eelectr icpar k‐
ing brak e.
In thefo llo wing situat ions,th eve hicle isheld by
tr ans missi on positio n005D and /or bytheelectr ic
par king brak e:
R The seat beltisunf astened andthedr iver's
door isopened.
R The vehicle isswitc hedoff.
R Ther eis amalfunction inthesy stem orthe
po we rsupp lyis insuf ficie nt. St
art-of fassi st Fu
nction ofstar t-of fassi st
St art-of fassis tenab lesoptim alvehicle acceler a‐
tion from ast ands till.Fo rth is, asuit ablyhigh-
gr ip road sur face isrequ ired, thetir es and vehi‐
cle mus talso beingood condition.
Do notactiv atest ar t-of fassis ton public roads.
Be sureto obser vethesaf etyno tesand informa‐
tion onESP ®
(/ page16 1). 18
6
Driving and parking

Ac
tiv atin gthe star t-of fassi st &
WARNIN GRisk ofskid ding and having
an acci dent from whe elsspi nning
Whe nyo uuse star t-of fassis t,ind ividual
wheels couldspin andyouco uld lose contro l
of theve hicle.
If ESP ®
is deactiv ated, ther eis arisk ofskid‐
ding andaccident! #
Mak esur eth at no per son sor obs tacles
ar ein theclose vicinit yof your vehicle. #
Deactiv atingESP®
(/ page16 3). #
Movethesteer ing wheel tothest ra ight -
ahead position. #
Depr essthebr ak epedal firm lywith your left
fo ot and keep itdepr essed. #
Engage the005B drive position (/page14 4). #
Select thespor tiestav ailable drive pr ogram
B orC(/ page14 0). #
Rapidl ydepr esstheacceler ator pedal fully. #
Take your foot offth ebr ak e, but keep the
acc elerat orpedal depresse d.
The vehicle pullsaway atmax imum acceler a‐
tio n. #
Swit chon ESP ®
once theaccelera tionproce‐
dur eis com plete.ESP ®
wi llot her wise notbe
able tostabiliz eth eve hicle ifth eve hicle
st ar ts to skid orawheel star ts to spin.
Cancel ingstar t-of fassi st #
Remo veyour foot from theacceler ator pedal. #
React ivat eth eES P®
. Fu
nction ofada ptive dam ping adjustm ent Suspen
sionwithadap tivedam ping adjus tment
con tinuously adjuststhech aract eristic sof the
suspension dampersto thecur rent operati ng
and drivi ng cond itions.
The damp ing issetindiv iduall yfo reac hwhee l
and isaffect ed bythefo llo wing fact or s:
R The road sur face condi tions
R Vehicle load
R The drive pr ogr am select ed R
The driving style
The drive pr ogr am can beadjus tedusing the
DY NA MIC SELE CTswitc h. Pa
rking Assis tPA RK TRONI C Fu
nction ofParking Assis tPA RK TRONI C Pa
rking AssistPA RK TRONI Cis an elec tron ic
par kingassi stanc esy stem withultr asound. It
monit orsth ear ea around your vehicle using mul‐
tiple sensor s1 onthefront bum perand onthe
re ar bum per.Pa rking AssistPA RK TRONI Csho ws
yo uth edis tance betwee nyo ur vehicle anda
de tected obs tacle visually and audibly . Dr
iving and parking 18
7

Pa
rking AssistPA RK TRONI Cis on lyan aid. Itis
no ta subs titutefo ryo ur att entio nto thesur‐
ro und ings.The responsibili tyforsaf emaneu ver‐
ing and parking remains withyo u. Mak esur e
th at ther ear eno per sons, animals orobjec tsin
th emaneuv ering area while maneuv ering and
par king in/exitingpar king spaces.
In thest andar dse tting ,an intermit tent wa rning
to ne sou nds from adi st anc eof appr oximat ely
1. 0 ft (0.3 m)toan obs tacle infront and approx ‐
imat ely3. 3ft (1.0 m) toan obs tacle beh ind. A
continu ouswa rning tone sou nds from adi st anc e
of appr oximat ely0. 7ft (0.2 m).Using theWarn
Early AllAroun dse tting inthemultimedia sys‐
te m, thewa rning tones forfr ont and side impact
pr otect ion can besetto sound atagr eat erdis‐
ta nce ofapprox imat ely3. 3ft (1.0 m) infront and
2.0 ft(0.6 m)onthesides (/page19 2).
% TheWar nEarl yAll Arou ndsetting isalwa ys
act ive in there ar oftheve hicle.
If Pa rking AssistPA RK TRONI Cis deac tiva ted,
Ac tivePa rking Assistis una vailable. Pa
rking Assis tPA RK TRONI Cdispl ayinthe
mu ltim edia system Ve
hicles withAc tivePa rking Assistwit hout a
360 °Camer a Ve
hicles withAc tivePa rking Assistand a360 °
Camer a
If Ac tivePa rking Assistis deact ivat ed and an
obs tacle isde tected inthepat hof theve hicle, a
pop-up windowforPa rking AssistPA RK TRONI C
1 appear sin themultimedia system atspeeds
belo w6mp h(1 0 km/h).
The color oftheindividual segmentsof thewa rn‐
ing displa yis based onthedis tance tothede tec‐
te dobs tacle :
R Yello wsegment s:obs tacle sat adi st anc e
be tween appr ox.2.0 ft(0.6 m)and 3.3ft
(1 .0 m) 18
8
Driving and parking

R
Orang esegments: obstacle sat adi st anc e
be tween appr ox.1. 0 ft (0.3 m)and 2.0ft
(0.6 m)
R Redse gme nts: obstacle sat ave ry shor t
dis tance ofapprox .1. 0 ft (0.3 m)orless
Displa yof Activ ePa rking Assis tPA RK TRONI C
in the Head-u pDi spla y Op
tiona lly,obs tacle sde tected byActivePa rking
Ass istPA RK TRONI Cfrom adis tance ofapprox ‐
imat ely3. 3ft (1.0 m) infront 2and 2.0ft (0.6
m)onthesides 3can also bedispla yedin
th eHead-up Display.
Sy stem limit s
Pa rking AssistPA RK TRONI Cdoes notne cessa‐
ri ly take intoacc ount thefo llo wing obstacle s:
R Obs tacle sbel ow thede tection rang e, e.g .
pe rsons, animals orobject s.
R Obs tacle sab oveth ede tection rang e, e.g .
ove rhang ingloads, overhang sor loadin g
ra mp sof truc ks.
The sensor smus tbe free ofdir t,ice and slush.
Ot her wise, they ma yno tfunction correctly .
Cl ea nth esensor sre gular ly,ta king careno tto
scr atc hor damag eth em. Pr
oblems withPa rking Assis tPA RK TRONI C Ve
hicles without 360° Camer a Ve
hicles with360° Camer a Dr
iving andparking 18
9

Pr
oblem
Possible causes/conseq uencesand0050 0050
Solutions
Re ar segm ents1 orall-r oundseg‐
men ts2 light upred. The é sym‐
bol appear sin themultifunc tiondis‐
pla y. Pa
rking AssistPA RK TRONI Cis malf unction ing and hasbeen deactiva teddue tosignal interfere nce. #
Startth eve hicle again. #
Chec kif Pa rking AssistPA RK TRONI Cis wo rking atadif fere nt locati on.
Re ar segm ents1 orall-r oundseg‐
men ts2 light upred. At thesame
time, awa rning tone sou nds for
appr oximat elytw oseco ndseverytim e
th eve hicle isstar ted. The é symbol
appear sin themultifunc tiondispla y. The
sensor sar edir ty. #
Clean thesensor sand obser vetheno teson car eof vehicle parts(/ page39 7).
Pa rking AssistPA RK TRONI Chas been deactiva teddue toamalf unction. #
Startth eve hicle again. #
Ifth epr oblem persists, con sult aqu alif ied spec ialistwo rkshop. Fu
nction ofthepa ssiv eside impact protec‐
tion
Pa ssiv eside impact protect ion isan additional
Pa rking AssistPA RK TRONI Cfun ction whic h
wa rnsth edr iver about obstacle sat theside of
th eve hicle. Awa rning isissued whenobstacle s
ar ede tected between thefront and rear detec‐
tion rang e. In orde rfo ran object ontheside to
be detected, thesensor sin thefront and rear bum
permus tfirs tde tect theobjec twhile you
ar edr ivin gpas tit.
Dur ing thepar king procedur eor maneuv ering,
objec tsarede tected astheve hicle drives pas t.
If yo usteer inthedir ect ion ofade tected obs ta‐
cle and ther eis arisk ofalat eral collision, a
wa rning isissued. Thesegme ntson thesides
light upyello wor red, dependin gon thedis tance
to theobs tacle . Seg
ment colordepe ndingon distan ce
Co lor Lateral dis tan ce
Ye llo wA pprox.1. 0 -2.0 ft
(30 -60 cm)
Re dA pprox.< 1.0 ft
(30 cm) 19
0
Driving and parking