engine MERCEDES-BENZ A-CLASS SEDAN 2020 Owner's Guide

Secur
ingtheengine agains tst ar ting before
car rying out maintenance orrepair work: #
Swi tchon thehazar dwa rning light s.
or #
Unloc kth edoor s.
or #
Open aside windo wor thesliding sunroof. Br
eaking-in notes To
preser vetheengine during thefirs t
1, 000 miles(1 ,500 km):
R Drive at varying road spee dsand engine
spee ds.
R Drive th eve hicle indrive pr ogr am A
or ;.
R Shif tto thene xt highes tge ar attheve ry lat‐
es twhen theneedle reac hes thelas tth ird
bef oreth ere dar ea intheta ch ome ter.
R Donotshi ftdo wn age ar man uallyin order to
br ak e.
R Avoid overstrai ning theve hicle, e.g.driving at
full thro ttle . R
Vehicl eswith automatic transmiss ion:Do
no tdepress theaccelera torpeda lbe yond the
pr essur epoint (kickdo wn).
R Onlyincr ease theengine speedgradually and
accelera tetheve hicle tofull spee daf te r
1, 000 miles(1 ,500 km).
This also app lieswhe nth eengine orpar tsof the
dr ivet ra in have been replaced.
Please alsoobser vethefo llo wing breakin g-in
no tes:
R Incer tain drivin gand drivin gsaf etysy stems,
th esensor sadjus taut omaticall ywhile acer‐
ta in dis tance isbe ing driven afte rth eve hicle
has been delivered orafte rre pair s.Fu llsy s‐
te m effectiv enes sis no tre ac hed untilth e
end ofthis teac h-in proce ss.
R Brak epads ,br ak edisc sand tires that are
eit her newor have been replaced onlyac h‐
ie ve optimum braking effect and grip afte r
se veralhundr edkilom eter sof driving. Com‐
pensat efo rth ere duced braking effect by
appl ying grea terfo rc eto thebr ak epedal. No
teson driving &
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. 13
4
Driving and parking

&
WARNIN GRisk ofacci dent dueto
uns uitable foot we ar
Oper ationof thepedals maybe restrict ed
du eto uns uitable foot we arsuc has:
R Shoes withplat form soles
R Shoes withhigh heels
R Slipper s #
When driving alwayswe arsuit able
shoe sin order tobe able tooper ateth e
pedals safely. &
WARNIN GRisk ofacci dent whenswi tch‐
ing offth eignition whendriving
If yo uswit choffth eignition whiledriving,
saf etyfun ction sar ere strict ed orno long er
av ailable. Thismayaf fect thepo we rst eer ing
sy stem and thebr ak efo rc eboos ting,fo r
ex am ple.
Yo uwill then need touse consider ablymor e
fo rc eto steer and brak e. #
Donotswitc hof fth eignition whiledriv‐
ing. &
DANG ER Risk ofdeat hcause dby
ex haus tga ses
Combus tionengines emitpoisonous exhaus t
ga ses suchas carbon monoxide.Inhaling
th ese exhaus tga ses ishazar dous tohealt h
and leads topoisonin g. #
Neverlea vetheengine or,if pr esent ,
th eauxiliar yheating running inan
encl osedspa cewithout sufficie ntventi‐
la tio n. &
WARNIN GRisk ofskid ding and ofan
acci dent dueto shif ting down onslipper y
ro ad sur faces
If yo ushif tdo wn onslipp eryro ad sur faces to
inc rease theengine braking effect, thedr ive
wheels maylose traction . #
Donotshif tdo wn onslipper yro ad sur‐
fa ces toinc rease theengine braking
ef fect. &
DANG ER Risk offata linj urydue topoi‐
sonous exhaus tga ses
If th eta ilpipe isbloc kedor suf ficie ntventil a‐
tio nis no tpo ssi ble, po isonou sex haus tga ses
suc has carbon monoxidemayent ertheve hi‐
cle. This isthecase when theve hicle
becomes stuc kin snow ,fo rex am ple. #
Keep theta ilpipe andthear ea around
th eve hicle free from snowwhen the
engine orthest atio naryheat erareru n‐
ning . #
Ope nawi ndo won theside oftheve hi‐
cle facing away from thewind toensur e
an adeq uatesupply offresh air. &
WARNIN GRisk ofacci dent andinjury
due tobeing under theinf luence ofalco‐
hol and drugs while driving
Dr iving when under theinf luence ofalcohol
and/or drugs isan extreme lydang erous
combin ation.Even small quant ities ofalco hol
or drugs mayaf fect your reflexe s,per cep tion
and judgment. Dr
iving andparking 13
5

The
probability ofaser ious oreven fata lacc i‐
dent greatl yinc reases ifyo udr ive when
und ertheinf luence ofalcohol ordrugs. #
Donotdr ink alcohol ortake drugs while
dr iving, anddonotallo wan yone to
dr ive who hasbeen drink ing alcohol or
ta king drug s. &
WARNIN GRisk ofacci dent dueto the
br ak esy stem overheating
If yo ulea veyour foot on thebr ak epedal
when driving, thebr ak esy stem mayov er‐
heat.
This increases thebr aking distance and the
br ak esy stem mayeve nfa il. #
Neveruse thebr ak epedal asafo ot re st. #
Donotde press thebr ak epedal andthe
acc elerat orpedal atthesame time
while driving. *
NO
TEWearing out thebr ak elinings by
continu ously dep ressing thebr ak epedal #
Donotdepr essthebr ak epedal contin‐
uousl ywhils tdr iving. #
Touse thebr aking effect of theengine,
shif tto alowe rge ar ingood time. *
NO
TEDama getothedr ivet ra in and
engin ewhen pulling away #
Donotwa rm uptheengine whilethe
ve hicle isstatio nary.Pull away immed i‐
at ely. #
Avoid high engine speeds anddriving at
full thro ttle untilth eengine hasreac hed
its operatin gte mp eratur e. *
NO
TEDama getothecat alytic converter
due tonon-co mbusted fuel The
engine isno tru nning smoothly and is
misf iring.
Non-c ombus tedfuel mayge tint oth ecat a‐
lyt iccon verter . #
Onlydepr esstheaccelera torpeda l
slig htly. #
Have thecause rectif ied imme diat ely at
a qu alif ied spec ialistwo rkshop. No
teson driving onsalt- treat edroads
The braking effect islimit edon salt-tr eated
ro ads.
Ther efor e, obse rveth efo llo wing notes:
R Due tosalt build-up onthebr ak ediscs and
br ak epads, thebr aking distance canincrease
consi derablyor result inbraking onlyon one
side
R Maint ainamuc hgr eat ersaf edis tance tothe
ve hicle infront
To remo vesalt build-up:
R Brak eoccasionall ywhile paying attention to
th etra ffic con dition s
R Carefull ydepr essthebr ak epedal attheend
of thejour neyand when star tin gth ene xt
jour ney 13
6
Driving and parking

No
teson hydropl aning
Hyd roplaning cantake place onceacer tain
amount ofwa terhas accumu lated on thero ad
sur face.
Obs erve thefo llo wing notesdur ing heavyprecip‐
it ation orinconditions inwhic hhy droplaning
ma yocc ur:
R Reduce speed
R Avoid tireru ts
R Avoid sudden steer ing movements
R Brak ecar eful ly
% Also obser vetheno teson regular lych ecking
wheels andtires (/ page422).
No teson driving through wateron the road
sur face
Wa terwhi chhas entered intoth eve hicle can
damag eth eengine, electricsand transmission .
Wa tercan alsoent ertheair intakeof theengine
and cause engine damage. Obser
vethefo llo wing ifyo umus tdr ive th ro ugh
wa ter:
R The water,when calm,ma yonl yre ac hth e
lo we redg eof theve hicle body
R Drive at wa lkin gpace atmos t,other wise
wa tercan entertheve hicle interior orengine
com partment
R Vehicles trave ling infront ,or onc omin gve hi‐
cles, cancreat ewav eswhic hma yexc eed the
maximu mper missi bleheig htofthewa ter
The braking effect of thebr ak es isreduced afte r
fo rd ing. Brak ecar efull ywhile paying attent ion to
th etra ffic con dition sunt ilbr akin gpo we rhas
been fullyrestor ed. ECO
star t/s topfunc tion Ope
ratio nof the ECOstar t/s topfunc tion
The engineisswi tched offau tomatical lyin the
fo llo wing situat ionsifall vehicle conditions for
an aut omat iceng inestop areme t:
R Vehicl eswith automatic transmiss ion:
Yo ubr ak eth eve hicle toast ands tillin trans ‐
miss ionposit ion005Bor005C.
Ve hicl eswith automatic transmiss ion:
If yo uswit chon theHOLD function intransmis‐
sion position 005Bor005C, theengine willautomati‐
call yst op inthefo llo wing situat ions:
R Youstop behind ave hicle that ispullin g
aw ay.
R Youstop atast op sign when ther eis no vehi‐
cle infront ofyou.
R Youtur nth esteer ing wheel hardat alow
speed.
% Intra nsmiss ionposition 005E,theengine is
no tswitc hedoffaut omatic allyevenwh en
th eHOLD function isswitc hedon. Dr
iving andparking 13
7

The
engine isrestar tedaut omatic allyif:
R Vehicl eswith automatic transmiss ion:In
tr ansmis sionposition 005B,youre lease the
br ak epedal whentheHOLD function isno t
activ e.
R Vehicl eswith automatic transmiss ion:
Yo ushif tint otransm issionposi tion005B or
005E.
R Youdepr esstheaccelera torpeda l.
R Anautomatic engine star tis requ ired bythe
ve hicle.
EC Ostar t/ stop funct ionsymbols inthemulti‐
func tion displa y:
R The 00D6 symbol (green) appear swhen the
ve hicle isat ast ands till:th eengine was
switc hedoffby theEC Ostar t/ stop funct ion.
R The 00D5 symbol (yello w)appear swhen the
ve hicle isat ast ands till:no tall vehicle condi‐
tions foran engine stop have been met.
R Neit herthe00D6 nor00D5 symbol appears
when theve hicle isat ast ands till:an intelli‐
ge nt stop inhibit orwa sde tected, e.g. ast op
sign. R
The 00D6OFF symbolappears:theEC O
st ar t/ stop funct ionisdeactiv ated orther eis
a malfunct ion.
% If,inspit eof an intellig entstop inhibit or,th e
engine shouldbeswitc hedoffby theEC O
st ar t/ stop funct ion,youha ve thefo llo wing
op tion s:
R Swit chon theHOLD function intransmis‐
sion position 005Bor005C.
R Youen gage trans missi on positio n005D.
If th eengine wasswitc hedoffby theEC Ostar t/
st op funct ionand youlea vetheve hicle, awa rn‐
ing tone sou nds and theengine isno tre star ted.
The Vehicle ReadytoDriv eSwitc hthe Ignit ion
Off Befor eEx iting displa ymessag ealso appear s
in themultifunc tiondispla y.Ifyo udo notswit ch
of fth eignition ,th eignition isaut omaticall y
switc hedoffaf te rth re eminut es. Deactiv
atingoractiv ating theECO star t/
st op fun ction #
Press butt on1.
A displa yappear sin theins trument cluster
when switching theEC Ostar t/ stop funct ion
of f/on .
% Acont inuous displayappear sin theins tru‐
ment clusterwhi letheEC Ostar t/ stop func‐
tion isdeactiv ated. 13
8
Driving and parking

Conf
iguringDYNA MIC SELECT (multimedia
sy stem) Multi
media system:
4 © 5
Set ting s5
Vehicle
5 DYNA MICSELECT
Se tting drive pr og ram I #
Select IndividualCo nfig.. #
Select and seta cat egory.
Switc hingthere se tdispla yon/of f #
Switc hRequest atStar ton oroff.
Fu nction on:thene xt time theve hicle isstar ted
a pr om ptappear sask ing whe ther thelas tactiv e
dr ive pr og ram shou ldbe restor ed. Ifth eEC O
st ar t/ stop funct ionwasdeactiv ated, anaddi‐
tional prom ptappear sask ing ifth efunc tion
should remain deactivated.
% The prom ptappear son lyifth epr ev iousl y
act ive se ttings deviat efrom thest andar d
se tting s.
Fu nction off:thene xt time theve hicle isstar‐
te dth eA drive pr ogr am issetaut omaticall y.The
ECOstar t/ stop funct ionisactiv ated aut o‐
matically .
% This funct ionmus tbe activ ated foreac huser
pr ofile sepa rately.Only when this func tion is
act ivat ed will thedr ive pr og ram and Eco
st ar t/ stop setting forth epr ev ious journey
be save dfo rth ere spectiv euser profile. Displa
yingvehicl edata Mul
timedi asy stem:
4 © 5
Info #
Select Vehicle.
The vehicle datais displa yed. Displa
yingengine data Multimedia
system:
4 © 5
Info #
Select Engine.
The engine datais displa yed.
% The actual (maximum) values that can be
ac hie vedfo rengine outputand engine tor‐
qu ema yde viat efrom thecer tified values wit
hin thecount ry-spe cificgu ideline sfo r
per missible toler anc es(basis: UN-ECE No.
85 orcount ry-spe cificgu ideline s).
Fa ctor sth at can influen cethis are, forex am‐
ple:
R Sea leve l
R Fuelgrade
R Outside temp eratur e
% The values displa yedser veonl yas orient a‐
tion. Thevalues forengine outputand
engine torq ue show nin themedia display
ma yde viat efrom theactual values. Calling
upfuel consum ption indicat or Multime
diasystem:
4 © 5
Info #
Select Consumpt ion.
The current and average fuel consum ption is
displa yed. Dr
iving andparking 14
1

Au
tomatic trans mis sion DI
REC TSE LECT leve r Fu
nction oftheDIRECT SELECT leve r &
WARNIN GRisk ofacci dent dueto inc or‐
re ct gearshif ting
If th eengine speedishigher than theidle
speed andyouen gage thetransmission posi‐
tion 005Bor005E, theve hicle mayacceler ate
shar ply. #
Ifyo uen gage thetransmission position
005B or005E when theve hicle isat a
st ands till,alw aysdepr essthebr ak e
pedal firm lyand donotacc eler ateat
th esame time. &
WARNIN GRisk ofacci dent andinjury
due tochildr enleftunat tende din the
ve hicle
If ch ildr enarelef tunat tende din theve hicle,
th ey cou ld:
R Ope ndoo rs,th er eb yendang ering other
per sons orroad user s.
R Getout and bestru ck byoncom ingtraf‐
fi c.
R Ope rate vehicle equipment andbecome
tr apped, forex am ple.
In addit ion,th ech ildr encould alsosetth e
ve hicle inmo tion, forex am ple by:
R Releasing thepar king brak e.
R Changing thetra nsmiss ionposition .
R Startin gth eve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eke ywit hyo uand lockth eve hicle. #
Keep theve hicle keyout ofreac hof
ch ildr en. Use
theDIRE CTSELECT leve rto shif tth etra ns‐
mission position.The current trans mis sion posi‐
tio nis displ ayed inthemultifunc tiondispla y. 005D
Park position
005E Reversege ar 14
2
Driving and parking

005C
Neutr al
005B Drive position
Eng aging reve rsege ar R #
Depr essthebr ak epedal andpush the
DIR ECT SELEC Tleve rupw ards pas tth efirs t
point ofresis tance.
The trans mis sion positio ndispl ay005E is
sho wninthemultifunc tiondispla y.
Eng aging neutralN #
Depr essthebr ak epedal andpush the
DIR ECT SELEC Tleve rup ordown tothefirs t
point ofresis tance.
The trans mis sion positio ndispl ay005C is
sho wninthemultifunc tiondispla y.
Sub sequently releasing thebr ak epedal will
allo wyo uto mo vetheve hicle freel y,e.g. topush
it or tow itaw ay.
Pr ocee das follo ws ifyo uwa nttheaut oma tic
tr ansm ission toremain inne utr al005C 005C
eve nif
th eignit ionisswitc hedoffor thedr iver' s
door isopened : #
Startth eve hicle. #
Depr essthebr ak epedal andengageneutral
005C when theve hicle isstatio nary. #
Release thebr ak epedal. #
Switc hth eignition off.
% Ifyo uth en exitth eve hicle leaving the
Smar tKey intheve hicle, theaut omatic trans‐
mission remains inneutr al005C.
Eng aging parkpositio nP #
Obser vetheno teson par king theve hicle
(/ page15 0). #
Dep ress thebr ak epedal untiltheve hicle is
st atio nary. #
When theve hicle isstatio nary,press butt on
005D.
Pa rk position isonl yeng aged when the
tr ans missi on positio ndisp lay 005D issho wnin
th emultifunc tiondispla y.Ifno transmissi on
positio ndispl ay005D appear s,sec ureth eve hi‐
cle topreve ntitfrom rolling away. Pa
rk position 005Diseng aged aut omatic allyif one
of thefo llo wing condition sis me t:
R Youswit choffth eignition whentheve hicle
is statio naryand thetransmission isin posi‐
tion 005Bor005E.
R Youopen thedr iver's door when theve hicle
is statio naryor when drivin gat ave ry low
speed andthetra nsmiss ionisin position 005B
or 005E.
% Tomaneu verwit han open driver's door ,
open thedr iver's door while statio naryand
eng agetrans miss ionposit ion005Bor005E
ag ain.
% Atvery low outs idetemp eratur esbelo w
appr ox.-4 °F (-20 °C),yo uma yno tbe able
to shif tth etra nsmiss ionfrom 005Dtoano ther
tra nsmiss ionposition whentheengine is
switc hedoff.Ifth is isthecase, onlych ang e
th etransmission positionwhiletheengine is
ru nning . Dr
iving and parking 14
3

Eng
aging drive posit ionD #
Dep ress thebr ak epedal andpush the
DIR ECT SELEC Tleve rdo wn pas tth efirs t
point ofresis tance.
The trans mis sion positio ndispl ay005B is
sho wninthemultifunc tiondispla y.
When theaut omatic transmiss ionisin transmis‐
sion position 005B,itshif tsthege arsaut omat i‐
call y.This depends, amongother things ,on the
fo llo wing fact or s:
R The select eddrive pr ogr am
R The position oftheaccelera torpeda l
R The driving speed Manual
gearshif ting &
WARNIN GRisk ofskid ding and ofan
acci dent dueto shif ting down onslipper y
ro ad sur faces
If yo ushif tdo wn onslipp eryro ad sur faces to
inc rease theengine braking effect, thedr ive
wheels maylose traction . #
Donotshif tdo wn onslipper yro ad sur‐
fa ces toinc rease theengine braking
ef fect. Whe
nth eaut omatic transmiss ionisshif tedto
position 005B,youcan man uallyshif tit wit hth e
st eer ing wheel gearshif tpaddle. Ifper mitted, the
aut omat ictransm issionshif tsto ahigh eror
lo we rge ar depen dingon thesteer ing wheel
ge arshif tpaddle beingpulled.
Yo uha ve twoop tio ns tomanua lly shif tth eaut o‐
matic transmiss ion:
R Temp orar yse tting
R Perm anen tse tting The
gearsshif taut omat icallywhen manualgear‐
shif tingis deac tivated.
Te mp oraryse tting: #
Toactiv ate: pul lst eer ing wheel gearshif t
paddle 1or2.
Man ualgearshif tingis act ivat ed fora shor t
time. Trans miss ionposit ion0063and thecur‐
re nt gear appear inthemultifunc tiondispla y.
% Howlong themanual gearshif tingst ay sacti‐
va tedis dependen ton various fact or s. Ma n‐
ua lshi fting can bedeact ivat ed aut omat ically
when chang ingthedr ive pr og ram, restar tin g
th eve hicle when thetransmission positionis
eng aged again 005Bordue tothedr iving style. #
Toshif tup: pull steer ing wheel gearshif t
paddle 2. #
Toshif tdo wn: pullsteer ing wheel gearshif t
paddle 1.
If yo upull and hold thesteer ing wheel gear‐
shif tpaddle 1,thetra nsmiss ionshiftsto
th elowe stpossible gear. 14
4
Driving and parking

#
Todeac tivate: pullst eer ing wheel gearshif t
paddle 2and hold itin place .
The transm issionposit ion005Bappear sin the
multifu nctiondisplay.
Pe rm anen tse tting: #
Cha ngeto drive pr og ram =(/ page14 0). #
Select drive se tting 0063(/ page14 1).
Me rcedes- AMGvehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yfa ilto rec‐
ogni zedangers. Gear
shiftrecomm endation Mer
cedes -AMG vehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yfa ilto rec‐
ogni zedangers.
The gearshif tre comme ndation assists youin
adop tingan eco nomic aldrivin gst yle. #
Ifge arshif tre comme ndation mess age1 is
sho wnonthemultifunc tiondispla y,shif tto
th ere comme ndedgear. Using
kickdow n #
Maximum acceleration: depress theaccel‐
er ator pedal beyond thepr essur epoint .
The automatic transmiss ionshiftsup tothene xt
ge ar when themaximum enginespeedis
re ac hed toprotect theengine from overrev ving. Glide
mode functio n Wi
th an ant icip ator ydr ivin gst yle, glide mode
helps youto reduce fuelconsum ption.
Glide mode isch aract erize dby thefo llo wing:
R The com bustion engin eis disco nnect edfrom
th edr ivet ra in and continues torunin neu tral .
R The trans mis sion positio n005B isdispl ayed in
gr een inthemultifunc tiondispla y.
Glide mode isact ivat ed ifth efo llo wing condi‐
tion sar eme t:
R Drive pr og ram ; issele cted.
R The speed iswit hin asui table rang e.
R The road's courseissuit able, e.g.no steep
uphill ordownhill inclinesortight bends.
R Youdo notdepr esstheaccelera toror brak e
peda l(e xc ep tfo rlig ht brak eapp lications).
% Glide mode canalsobe activ ated ifyo uha ve
select edthe"Eco" setting forth edr ive in the
dr ive pr og ram =.
Gli de mode isdea ctivated again ifone ofthe
condi tions isno long erme t. Dr
iving and parking 14
5