ECU MERCEDES-BENZ A CLASS 2023 Service Manual

#
ShiT thetransmission toposition 005B. #
Have thetransmission checkedat aqu ali/ed
special istwo rkshop immed iately. Manua
l Manua
lg g
ear ear
shiTin g sh
iTin g *
N NO O
TE TE
Mer cedes-AMG vehicles #
Obser vetheno tesin theSupplement.
Yo ucould other wise failto recogn ize
dang ers. When
theaut omatic transmission isshiTed to
position 005B,youcan manuall yshiT itwit hth e
st ee ring wheel pad dleshiTe r.Ifper mitted, the aut
omati ctransmi ssionshiTs toahighe ror lowe r
ge ar depen dingon thesteer ing wheel paddle
shiTer beingpulled.
Yo uha ve twoop tions tomanuall yshiT theaut o-
matic transmission:
R Temp oraryse ttin g
R Perm anen tse tting
The gearsshiT automati callywhen manualshiTing
is deact ivat ed.
T T
em em
por por
ar ar
yse y
se tting : tti
ng : #
T T
o activ o
activ at at
e: e:
pull steer ing wheel paddle shiTer
1 or2.
Man ualshiTing isactiv ated fora shor ttime.
The transmission positiondisplaysho ws0063
and thecur rent gear.
% Howlon gth emanual shiTingst ay sactiv ated
is depen denton various fact or s.
Manu alshiTing canbeaut omatical lydeactiv a-
te din thefo llo wing cases :
R Changing thedr ive pr og ram
R Restar ting theve hicle R
When thetransmission position005Bis
eng aged again
R Driving style #
T T
o o
shiT shiT
up: up:
pull steer ing wheel paddle shiTer
2. #
T T
o o
shiT shiT
do do
wn: wn:
pull steer ing wheel paddle
shiTer 1.
If yo upull and hold steer ing wheel paddle
shiTer 1,thetransmission shiTstothelow-
est possible gear. #
T T
o deact iv o
deact ivat at
e: e:
pull steer ing wheel paddle
shiTer 2and hold itin place.
The transmi ssionpositiondispl aysho ws005B.
P P
er er
manent se manent
setting : tting
: #
Chang eto drive pr og ram =(/ page138) . #
Sele ctdrive se ttin g0063 (/ page139). GearGear
shiT shiT
r r
ecommendati on ecommendati
on The
gearshiT recommen dationassistsyo uin
adop tinganeconomica ldr iving style. Dr
iving andparking
143 143

Onl
yre fuel with fuel that has atleas tth eoct ane
number speci/ed intheinf ormation labelinthe
fuel /ller 0ap. Othe rw ise, engine outputcanbe
re duced andfuelconsum ption incr eased. 1
Fuel/ller 0ap
2 Brac ketfo rfuel /ller cap
3 Tire pressur eta ble 4
Fueltype
5 QRcode forre scue card #
Press onthebac kar ea offuel /ller 0ap1. #
Turn thefuel /ller capcount er-cloc kwise and
re mo veit. #
Inser tfuel /ller capfrom aboveintobr ac ket
2 . #
Com pletely inser tth epum pnozzl eint oth e
ta nk /ller nec k,hook inplace andrefuel . #
Only/l lth efuel tank until thepum pnozzl e
switc heso.. #
Replace thecap onthe/ller neckand turn
cloc kwise untiliteng ages audibl y. #
Close fuel/ller 0ap1. PP
ar ar
king king
PP
ar ar
king t king
the v he
vehicle ehicle
&
W W
ARNIN G ARNIN
GRisk ofaccident andinjur y
caused byan insu1cie ntlysecur edvehi-
cle rolling away
If th eve hicle isno tsecur elypar kedsu1-
cient ly,it can rollawa yin an uncon troll ed way
eve nat asli ght downh illgradien t. #
Onuphil lor downhil lgr adien ts,turnth e
fr ont wheel sso that theve hicle rolls
to wa rdsth ecurb ifit star ts mo ving. #
Appl yth epar king brak e. #
Switc hth etransmission toposition 005D. &
W W
ARNIN G ARNIN
GRisk of/recaused byhot
ex haus tsy stem parts
Flammab lemat erials suchas lea ves, grass or
twig sma yign ite. #
Park theve hicle sothat no 0ammable
mat erial can come intocont actwithho t
ve hicle compone nts. Dr
iving and parking
147 147

#
Inpar ticu lar,do notpar kon drygr ass-
land orhar vested grain /elds. &
W W
AR NIN G AR
NIN GRisk ofacciden tand injurydue
to childr enleT unatt ended intheve hicle
If ch ildr enareleT unsuper visedintheve hicle,
th ey could, inpar ticul ar:
R open doors,ther eb yendang ering other
per sons orroad user s.
R getout and bestruckby oncoming tra1c.
R oper ateve hicle equipme ntand become
tr apped, forex am ple.
In addit ion,th ech ildr encould alsosetth e
ve hicle inmo tion ,fo rex am ple by:
R releasing thepar king brak e.
R chang ingthetransmission position.
R star ting theve hicle. #
Neverlea vechildr enunatt ended inthe
ve hicle. #
When leavingth eve hicle, alwaysta ke the
Sma rtKe ywit hyo uand lockth eve hicle. #
Keep theve hicle SmartKey out ofreac h
of childr en. *
N NO O
TE TE
Damag eto theve hicle duetoitro ll-
ing awa y #
Alwayssecur eth eve hicle agains tro lling
awa y. #
Bring theve hicle toast ands tillby pressing the
br ak epedal. #
Ongradien ts,turnth efront wheels sothat the
ve hicle willrollto wa rdsth ecurb ifit star ts
mo ving. #
Appl yth eelectr icpar king brak e. #
V V
ehicles wit ehicles
withaut h
aut omatic tr omatic
transmission: ansmission:
Engage
tr ansmission position005Dinast ationar yve hi- 148148
Dr
iving and parking

cle
withth ebr ak epedal applied
(/ page142). #
Switc ho. theve hicle bypressing button1. #
Release theser vice brak eslo wly . #
Getout oftheve hicle andlockit.
% When youpar kth eve hicle, youcan stilloper -
at eth eside windo wsand thepanor amicslid-
ing sunr oofforappr oximat elyfo ur minut esif
th edr iver's door isclosed. GarGar
ag ag
edoor opener e
door opener PrPr
og r og
ramming butt amming
buttons f ons
for t or
the g he
gar ar
ag ag
edoor opener e
door opener &
D D
AN AN
GER GER
Riskoffata linjur iescaused by
ex haus tga ses
Combu stion enginesemit poison ousexhaus t
ga ses, suchas carbon monoxide.Inhaling
th ese exhaus tga ses ishazar dous tohealt h
and leads topoisoning . #
Neverru nth eve hicle and,ifpr esen t,the
st at iona ry heat erind oor swit hout su1-
cient ventila tion. &
W W
ARNI NG ARNI
NGRisk ofinjur yby becoming
tr apped whenopening andclosing a
ga rage door
When youoper ateor prog ram aga rage door
wit han integratedga rage door opener ,per -
sons canbecome trapped orstruckby the
ga rage door ifth ey stan dwi thin its rang eof
mo vement. #
Alwaysmak esur eth at nobo dyiswit hin
th era ng eof thega rage door's move-
ment. Onl
yoper ateth efo llo wing doorsusing thega rage
door opener :
R Door swit hasaf etyst op andre ve rsing featur e
R Door swhic hconf orm to thecur rent U.S.
sa fety standa rds
Bef oreprog ramming thega rage door opener ,par k
th eve hicle outside thega rage .Mak esur eth at the
ve hicle isswitc hedonbut notst ar ted. R R
eq eq
uir uir
ements: ements:
R The vehicle hasbeen parkedoutside the
ga rage oroutside thera ng eof mo vement of
th edoor .
R The vehicle isswitc hedon.
R The vehicle hasnotbeen star ted.
% The garage door opener function isalw ays
av ailabl ewhen theve hicle isswitc hedon. Dr
iving and parking
149 149

ApplAppl
ying/r ying
/relea sing t elea
sing the elec tr he
elec tric par ic
par king br king
brak e ak
e
ma nual ly manuall
y
Appl Appl
ying ying
#
Push handle 1.
The red0049 (USA)or0024 (Canada) indica-
to rlam plights upintheinst rument cluster. %
The electr icpar king brak eis onl ysecur ely
applied ifth ere d0049 (USA)or0024 (Can-
ada) indicat orlam pis lit continu ously.
R R
eleasing eleasing
#
Switc hon theve hicle. #
Pullhandl e1.
The red0049 (USA)or0024 (Canada) indica-
to rlam pin theinst rument clustergoes out.
Emer g Emer
gency br ency
braking aking
#
Press and hold handle 1.
As long astheve hicle isdrivi ng ,th ePlea se
Rel ease Parking Brakemessag eis displa yed
and there d0049 (USA)or0024 (Canada)
indicat orlam p0ash es.
When theve hicle hasbeen brak ed toast and-
st ill, theelectr icpar king brak eis applied. The
re d0049 (USA)or0024 (Canada) indicator
lam plights upintheinst rument cluster. InfInf
or or
mation oncollision det mation
oncollision detection onapar k ection
onapar ked ed
v v
ehicle ehicle
If
acollision isde tected when theto w- awa yalar m
is armed onaloc kedve hicle, youwill receiv ea
no ti/cation inthemultimedia system when you
switc hth eve hicle on.
Yo uwill receiv einf ormation aboutthefo llo wing
points:
R The area oftheve hicle that ma yha ve been
damag ed.
R The forc eof theim pact.
The follo wing situation canlead toinadv ertent
ac tivatio n:
R The parkedve hicle ismo ved, forex am ple, ina
tw o-s tory garage .
% Deactiv ateth eto w- awa yalar minorder to
pr ev ent inadv ertent activatio n.Ifyo udeacti-
va te theto w- awa yalar m,coll isionde tection
will also bedeactiv ated. Dr
iving and parking
153 153

R
The incline must notbe gre ater than 30% .
A A
ctiv ctiv
atin g/deact iv atin
g/deact ivatin gt atin
gthe HOL Dfunct ion he
HOL Dfunct ion &
W W
AR NING AR
NING Riskofan acciden tdue tothe
HOLD functionbeing activewh en you
lea vetheve hicle
If th eve hicle isonl ybr ak ed withth eHOLD
function itcould, inthefo llo wing situations,
ro llawa y:
R Ifth er eis amalfunction inthesy stem orin
th epo we rsuppl y.
R Ifth eHOLD function isdeactiv ated by
depr essing theacceler ator pedal orbrak e
pedal, e.g.byave hicle occupan t. #
Alwayssecur eth eve hicle agains tro lling
awa ybef oreyo ulea veit. RR
eq eq
uir uir
ements: ements:
R The vehicle isstation ary.
R The driver's dooris clo sed ortheseat belton
th edr iver's side isfastene d. R
Theve hicle hasbeen star tedor has been
aut omaticall yswitc hedo.bytheEC Ostar t/
st op function .
R The electr icpar king brak eis released.
R ActiveDist ance AssistDIS TRONI Cis dea ctiva-
te d.
R V V
ehicles wit ehicles
withaut h
aut omatic tr omatic
transmission: ansmission:
The
tr ansmission isin position 005B,005Eor005C.
A A
ctiv ctiv
ating t ating
the HOLD function he
HOLD function #
Depr essthebr ak epedal, andaTer ashor t
time quickl ydepr essfurther until the00D9
displa yappear sin theInstr ument Display. #
Release thebr ak epedal.
Deactiv Deactiv
atingt ating
the HOLD function he
HOLD function #
Depr esstheacceler ator pedal topull away.
or #
Depr essthebr ak epedal untilthe00D9 display
disappear sfrom theInstr ument Display.
The HOLD functionisdea ctivated inthefo llo wing
situations:
R ActiveDist ance AssistDIS TRONI Cis acti va-
te d. R
V V
ehicles wit ehicles
withaut h
aut omatic tr omatic
transmission: ansmission:
The
tr ansmission isshiTed toposition 005D.
R The vehicle issecur edwithth eelectr icpar k-
ing brak e.
In thefo llo wing situations, theve hicle isheld by
tr ansm ission position 005Dand/or bytheelectr ic
par king brak e:
R The seat beltisunf astened andthedr iver's
door isopened.
R The vehicle isswitc hedo..
R Ther eis asy stem malf unct ion.
R The powe rsuppl yis insu1c ient. FF
unction ofHill St unction
ofHill Star ar
tAssis t t
Assis t Hil
lSt artAssis tholds theve hicle fora shor ttime
when pulling awayon ahill under thefo llo wing
conditions:
R V V
ehicles wit ehicles
withaut h
aut omatic tr omatic
transmiss ion: ansmiss
ion:The
tr ansmiss ionisin position 005Bor005E.
R The electr icpar king brak eis released. 160160
Dr
iving andparking

Do
notuse cruise contr olinthefo llo wing situa-
tions:
R Intra1c situations whichre qu ire freq uent
ch ang esofspeed, e.g.in hea vytra1c, on
wind ingroads
R Onslipp eryro ads. Acceler atingcan cause the
dr ive wheels tolose traction andtheve hicle
could then skid.
R When visibility ispoor
Oper Oper
ating cr ating
cruise contr uise
contr ol ol
&
W W
ARNIN G ARNIN
GRisk ofaccident duetostor ed
sp ee d
If yo ucall upthestor ed speed andthis is
lo we rth an your cur rent spe ed, theve hicle
decel erates. #
Take intoaccount thetra1c situation
bef orecalling upthestor ed speed. RR
eq eq
uir uir
ements: ements:
R ESP ®
must beactiv ated, but notint erve ning.
R The vehicle speed isat leas t15 mph
(20 km/h ). R
The trans missionis in pos ition005B. Ope
r Ope
rati ng cr ati
ng cruis econt r uis
econt rol ol
#
Press thero ck er switc hesonthesteer ing
wheel controlpanel upordown tothedesir ed
position.
A A
ctiv ctiv
ating cr ating
cruise contr uise
contr ol ol
#
Select Mwithth eright rock er switc h. A A
ctiv ctiv
ating cr ating
cruise contr uise
contr ol ol
#
Press rock er switc h1 upM ordown
N.
The current spe edisstor ed and maintaine dby
th eve hicle.
or #
Select J withth eleT rock er switc h.
The laststor ed speed iscalled upand main-
ta ined bytheve hicle.
If th elast stor ed speed hasprev iousl ybeen
dele ted, thecur rent vehicle speed isstor ed.
% When youswitc ho. theve hicle, thelast
speed stor ed isdele ted.
Incr Incr
easing ordecr easing
ordecr easing t easing
the st he
stor or
ed speed ed
speed #
1mp h(1 km /h):pr es sro ck er switc h1 up
M ordown N tothepr essur epoint.
or #
5mp h(1 0km /h):pr es sro ck er switc h1 up
M ordown N beyond thepr essur e
point.
or 164164
Dr
iving andparking

R
Ifth er ear enar row vehicles infront ,suc has
bicy cles ormo torc yc les.
In addition, onslipper yroads, braking oracceler -
ating cancause oneorseveralwheels tolose
tr action andtheve hicle could then skid.
Do notuse ActiveDist ance AssistDIS TRONI Cin
th ese situations. &
W W
ARNING ARNING
Riskofaccident from acceler a-
tion orbraking byActiveDist ance Assist
DIS TRONI C
Ac tiveDist ance AssistDIS TRONI Cma yacc el-
er ateor brak ein thefo llo wing cases ,fo r
ex am ple:
R Ifth eve hicle pullsawa yusin gAc tiveDis-
ta nce AssistDIS TRON IC.
R Ifth estor ed speed iscalled upand iscon-
sider ablyfa ster or slowe rth an thecur -
re ntl ydr iven spe ed.
R IfAc tiveDist ance AssistDIS TRONI Cno
long erdetects ave hicle infront ordoes
no tre act toreleva nt obje cts. #
Alwayscar efull yobser vethetra1c con-
ditions andbeready tobrak eat all
times. #
Take intoaccount thetra1c situation
bef orecalling upthestor ed speed. &
W W
ARNIN G ARNIN
GRisk ofaccident duetoinsu1-
cient deceler ationbyActiveDist ance
Assi stDIS TRONI C
Ac tiveDist ance AssistDIS TRONI Cbrak es your
ve hicle withupto50% ofthepossible deceler-
ation. Ifth is deceler ationisno tsu1cien t,
Ac tiveDist ance AssistDIS TRONI Caler tsyou
wit havisu aland acous ticwarning. #
Adjust your speed andmaint ainasuit a-
ble distance from theve hicle infront . #
Brak eth eve hicle yourself and/or take
ev asiv eactio n. &
W W
AR NIN G AR
NIN GRisk ofacciden tif de tection
fun ction ofActiveDist ance Assist
DIS TRONI Cis im pair ed
Ac tiveDist ance AssistDIS TRONI Cdoes not
re act orhas alimi tedre actio n:
R when drivi ng on adi.er entlane orwhen
ch ang inglane s
R topedest rians, anim als,bicycles orsta-
tio nar yve hicles, orune xpect edobs tacles
R tocom plextra1c condi tions
R tooncoming vehicles andcrossin gtra1c
As are sult ,Ac tiveDist ance AssistDIS TRONI C
ma yneit her givewa rnings norinterve ne in
suc hsitu atio ns. #
Alwaysobser vethetra1c conditions
car efull yand react accor dingly. OperOper
ating A ating
Activ ctiv
eDis t e
Dis tance Assis ance
AssistDIS t
DIS TR TR
ONIC ONIC
R R
eq eq
uir uir
ement s: ement
s:
R The electr icpar king brak eis released.
R ESP ®
is activ ated and isno tint erve ning. Dr
iving andparking
167 167

&
W W
ARNI NG ARNI
NGRisk ofan accid ent due to
Ac tiveDist ance AssistDIS TRONI Cbeing
acti vewhen youlea vethedr iver's seat
If yo ulea vethedr iver's seat while theve hicle
is bein gbr ak ed byActiveDist ance Assist
DIS TRONI Conl y,theve hicle canrollaw ay. #
Alwaysdeacti vate Ac tiveDist ance Assist
DIS TRONI Cand secureth eve hicle to
pr ev ent itfrom rolling awaybef oreyo u
lea vethedr iver's seat. #
Select Owithth eleT rock er switc h.
% Ifyo ubr ak e, deactiv ateESP ®
or ifESP ®
int er-
ve nes, ActiveDist ance AssistDIS TRONI Cis
deac tivated.
Incr Incr
easing ordecr eas
ing ordecr easing t eas
ing the spee d he
spee d #
1mp h(1 km /h):pr es sro ck er switc h1 up
M ordown N tothepr essur epoint.
or #
5mp h(1 0km /h):pr es sro ck er switc h1 up
M ordown N beyond thepr essur e
point. or #
Acceler ateth eve hicle tothedesir edspeed
and press rock er switc h1 upM.
Changing t Changing
the he
speci/ed speci/ed
dist dist
ance t ance
to t o
the v he
vehicle in ehicle
in
fr fr
ont ont
#
T T
o r o
reduce t educe
the he
speci/ed speci/ed
dist dist
ance: ance:
press the
ri ght rock er switc hup (Ñ). #
T T
o incr o
incr ease t ease
the he
speci/ed speci/ed
dist dist
ance: ance:
press the
ri ght rock er switc hdo wn (Ò).
F F
unction ofA unction
ofActiv ctiv
eSpeed LimitAssist e
Speed LimitAssist
If ach ang ein thespeed limitof12 mph
(20 km/h )or mor eis de tected and automatic
adop tionofspeed limitsis activ ated, thene w
speed limitisaut omaticall yadop tedas thestor ed
speed (/page181).
The driven speed isadjust edwhen theve hicle is
le ve lwit hth etra1c signatthelat est. Inthecase
of signs indicating entryint oan urban area, the
speed isadap tedaccor dingtothespeed permit-
te dwit hin theurban area. The speed limitdispla y
in theInstr ument Displayis alw aysupdat edwhen
th eve hicle isleve lwit hth etra1c sign. If
th er eis no speed restr iction onanunlimited
str etch ofroad (e.g .on afree wa y), there com-
mende dspeed isaut omatical lyadop tedas the
st or ed spee d. Thesy stem uses thespeed stor ed
on anunlimit edstretch ofroad asthere commen -
ded speed. Ifyo udo notalt er thestor ed speed on
an unlimit edstretch ofroad, there commen ded
speed is80 mph(1 30 km/h).
If Ac tiveDist ance AssistDIS TRONI Chas been put
int opas sivemode bypressing theacceler ator
pedal, onlyspeed limitswhichar ehigher than the
se tspeed areadop ted.
Obser vetheno teson drivi ng systems andyour
re sponsi bility;yo uma yot her wise failto recogn ize
dang ers(/ page155) .
Sy st Sy
stem limit s em
limit s
The system limit sof Tra1c Sign Assis tappl yto
th ede tection oftra1c signs(/ page180) .
Spe edlimit sbelo w12 mph(2 0km /h)ar eno t
au tomaticall yadop tedby thesy stem asthestor ed
speed. Temp oraryspeed restr iction s(e .g. fora
cer tain time ordue towe ather cond itions) cannot
be proper lyde tected bythesy stem. Themaxi- Dr
iving andparking
169 169

to
ne sou nds inadd itionto thevisual warning mes-
sag e.
If th edr iver still does notre spond tothewa rning,
th eBeginning Emergency Stopmessag eappear s
in theInstr ument Display.Ifth edr iver still does
no tre spond ,Ac tiveDist ance AssistDIS TRONI C
re duces thespeed. Thevehicle isdecel erated in
st ag es toast ands till.
Depen dingon thecountr y,at speeds below
40 mph(6 0km /h)th ehazar dwa rning lights
switc hon automaticall y.
When theve hicle isstation ary, thefo llo wing
actions arecar ried out:
R The vehicle issecur edwithth eelectr icpar k-
ing brak e.
R ActiveDist ance AssistDIS TRONI Cis ended.
R The vehicle isunl ocked.
R Ifpossible, anemer gency callis pla ced tothe
Mercede s-Benzemergency callcent er.
The driver can cancel thedeceler ationatanytime
by per form ing one ofthefo llo wing actions:
R Steer ing R
Braking oracceler ating
R Deactiv atingActiveDist ance Assist
DIS TRONI C AA
ctiv ctiv
eLane Chang e
Lane ChangeAssi st e
Assi st FF
unctio nof A unctio
nof Activ ctiv
eLane Chang e
Lane ChangeAssi st e
Assi st
Ac tiveLane ChangeAssi stsupp orts thedr iver
when chang inglane sby appl ying steer ing torq ue
if th edr iver activ ates atur nsignal indicat or.
Obser vetheno teson drivi ng systems andyour
re sponsi bility;yo uma yot her wise failto recogn ize
dang ers(/ page155) .
Assis tance when chang inglane sis prov ided ifall
th efo llo wing conditions areme t:
R Youar edr iving onafree wa yor road withmul-
tip lelane sin thedir ection oftrav el.
R The neighbor inglane issepar ated byabr ok en
lane marking .
R Novehicle isde tected intheadjacent lane.
R The vehicle speed isbe tween 50mph
(80 km/h )and 110 mph(1 80 km/h). R
ActiveLane ChangeAssi stisswi tched onin
th emultimedia system.
R ActiveSt eer ing Assist isactiv ated and activ e.
If no vehicle isde tected intheadjacent laneanda
lane chang eis per mitt ed,thelane chang ebeg ins
aTer thedr iver has activ ated thetur nsignal indi-
cat or.This issho wntothedr iver wit hagr een
ar ro w ne xt to the± steer ing wheel symbol.
The Lane Change tothe Left messag e,forex am-
ple, also appear s.IfAc tiveLane ChangeAssi st
has been activatedwit hth etur nsignal indicat or
but alane chang eis no timmed iatelypossibl e,a
gr ay arro w appear sne xt to the± steer ing
wheel symbol, whichre mains green.
When lanechang eassis tance star ts, thetur nsig-
nal indicat orisaut omaticall yactiv ated along with
th edispla yin theInstr ument Display.
If th eassist ancegraphic issho wnwhen chang ing
lane s,an addit ionalarro w appear sin itpoin ting
to wa rdsth eadjacent lane(/page165).
If alane chang eis no tpossibl e,thear ro w isfaded
out aTer afew secon dsand ane wlane chang e
mus tbe initiat ed. Animmed iatelane chang eis 174174
Dr
iving and parking