ECU MERCEDES-BENZ S CLASS 2022 Workshop Manual

HOLD
functio n HOLD
functio n
The HOLD function holdsth eve 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 Dfunc tion &
WARNIN GRisk ofan acci dent dueto the
HOLD functio nbei ng activ ewhe nyo u
lea vetheve hicle
If th eve hicle isonl ybr ak ed withth eHOLD
func tion itcould, inthefo llo wing situat ions,
ro llaw ay:
R Ifth er eis amalfunct ioninthesy stem or
in thepo we rsupp ly.
R Ifth eHOLD function isdeactiv ated by
depr essing theaccelera torpeda lor brak e
peda l,e.g. byave hicle occupant. #
Alw ayssecur eth eve hicle agains tro ll‐
ing away bef oreyo ulea veit. 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 The transmis sionisin position 005B,005Eor005C.
Ac tiv atin gthe HOL Dfun ction #
Dep ress thebr ak epedal, andafte ra shor t
time quickl ydepr essfurther until the00D9
displa yappear sin thedr iver displa y. #
Release thebr ak epedal.
Deactiv atingtheHOLD function #
Depr esstheacceler ator pedal topull away.
or #
Depr essthebr ak epedal untilthe00D9 dis‐
pla ydisappear sfrom thedr iver displa y.
The HOLD functionisdeactiv ated inthefo llo w‐
ing situat ions:
R ActiveDis tance AssistDIS TRONI Cis acti va‐
te d.
R The transmission isshif tedto position 005D.
R The vehicle issecur edwithth eelectr icpar k‐
ing brak e. Dr
iving andparking 21
5

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 asy stem malfunct ion.
R The powe rsupp lyis insuf ficie nt.
In addition, theBrak eImmediately messagema y
appear inthedr iver displa yand ahor nto ne may
sou ndatregular interva ls. #
Imm ediat elydepr essthebr ak epedal firm ly
unt ilth ewa rning mess agedisappear s.
The HOL Dfunc tion isdeact ivat ed. #
Addition allysecur eth eve hicle agains tro lling
aw ay. 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 The transmissio nis in posit ion005Bor005E. R
The elect ric pa rking 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. #
Swif tly mo veyour foot from thebr ak e
pedal totheaccelera torpeda l.Do not
lea vetheve hicle when itis being held
by HillSt artAs sis t. AT
TENTI ONASSIST Fu
nction ofATTENTI ONASSIST wit hmi cro‐
sleep detection
% The microsleep detection subfu nction isonly
av ailable incom binatio nwit hth edr iver cam‐
er a. AT
TENTION ASSISTassis tsyouon long,mon oto‐
nous journeys,e.g. onhighw aysand trunk roads.
If ind icat orsof fatig ue orincr easing laps es in
conce ntration onthepar tof thedr iver are
de tected, thesy stem sugg ests taking abr ea k.
AT TENTION ASSISTis onl yan aid. Itcann ot
alw aysde tect fatig ue orlaps es inconce ntration
in tim e.The system isno ta subs titutefo ra we ll-
re sted and attent ive dr iver .On long journeys,
ta ke regular break sin good timethat allo wfor
adeq uatere cup erati on.
Yo ucan choose between twose ttings:
R Standar d:nor mal system sensit ivity.
R Sensitiv e:incr eased system sensit ivity:the
dr iver iswa rned ear lier and theatt ent ion
le ve lde tected bythesy stem isadap ted
acc ordin gly.
If dr ow siness orincr easing lapsesinconcen tra‐
tion arede tected, theATTE NTION ASSIS T:Take
a Break !wa rning appear son thedr iver displa y.
Yo ucan ackn ow ledg eth emessag eand take a
br eak wher enec essar y.Ifyo udo nottak ea
br eak and ATTENTION ASSISTcont inues to
de tect incr easing lapse sin concentr ation, you 21
6
Driving and parking

#
Press J.
The limit speed displayedin thedr iver displa y
is adop tedas thestor ed speed. Thevehicle
adap tsits speed tothat oftheve hicle in
fr ont, butonlyup tothestor ed speed.
Pulling away wit hAc tiv eDi stance Assist
DI ST RO NIC #
ActivateAc tiveDis tance AssistDIS TRONI C
and remo veyour foot from thebr ak epedal. #
Press J.
or #
Depr esstheacceler ator pedal brief lyand
fi rm ly.
The funct ionsofActiveDis tan ceAssi st
DIS TRONI Cconti nuetobe car ried out.
Re duci ngorinc reasin gth especif ieddis‐
tance from theve hicl ein front #
Press K.
The h display app ears.The speci fied dis‐
ta nce isreduced byone leve l.
If th elowe stleve lis alr eady selected, the
selection jumpstothehighes tle ve l. Deactiv
ating Activ eDi stance Assist
DI ST RO NIC &
WARNIN GRisk ofan acci dent dueto
Ac tiveDis tan ceAssi stDIS TRONI Cbe ing
acti vewhen youlea vethedr iver's seat
If yo ulea vethedr iver's seat while theve hicle
is being brak ed byActiveDis tance Assist
DIS TRONI Conly ,th eve hicle canrollaw ay. #
Alw aysdeactiv ateAc tiveDis tance
Assi stDIS TRONI Cand secureth eve hi‐
cle topreve ntitfrom rolling away
bef oreyo ulea vethedr iver's seat. #
Press ±.
% Ifyo ubr ak e, deac tivateES P®
or ifES P®
int erve nes, ActiveDis tance Assist
DIS TRONI Cis de acti vated.
Fu nction ofActiv eSpe edLimit Assist
If ach ang ein thespeed limitof12 mp h
(20 km/ h)or mor eis de tected and automatic
adop tionofspeed limitsisactiv ated, thene w
speed limitisaut omaticall yadop tedas the
st or ed speed (/page22 4). The
driven speed isadjus tedwhen theve hicle is
le ve lwit hth etraf fic sig nat thelat est.In the
case ofsig ns indi cati ngentr yint oan urb anarea ,
th espeed isadap tedaccor dingtothespeed
per mitt edwithin theurban area. The speed limit
displa yin thedr iver displa yis alw aysupda ted
when theve hicle isleve lwit hth etraf fic sig n.
If yo uar edr ivin gon Ger man highways and ther e
is no speed limit,thesy stem uses thespeed
st or ed fora st re tchof road withno spee dlimit
as these tspeed. Ifyo udo notalt er thestor ed
speed onast re tchof road withno spee dlimit ,
th ere comme ndedspeedof80 mph(1 30 km/h)
is adop ted.
If Ac tiveDis tance AssistDIS TRONI Cha sbe en
pu tint opa ssi ve mode bypressing theaccelera ‐
to rpeda l,onl yspee dlimi tswhi charehigh er
th an these tspeed areadop ted.
The maximum permissible speeddoesnotta ke
th ero ad con dition and current we ather and traf‐
fi c condi tions intoacco unt.Adjus tyo ur spee d
acc ordin gly, when necessar y. 222
Driving andparking

If
th esy stem detects that thedr iver has not
st eer edtheve hicle fora consider ableper iod of
time orhas remo vedth eir hands from thesteer‐
ing wheel, visualwarning 1isissued. Ifth e
dr iver still does notst eer theve hicle, orgiv es no
conf irmation tothesy stem, awa rning tone
sou nds inad ditio nto thevisual warning mes‐
sag e.
Also obser vetheins truction son thecon tact
de tection ofActiveSt eer ing Assis t
(/ page225). Ac
tiveEmerg encyStop Assis tissues thefo llo w‐
ing warnings inorder :
R Disp lay mess age1 appear sin thedr iver's
displa y.
R Inaddi tion todispla y1 awa rning tone
sou nds.
R The BeginningEmerg encyStopmessage
appear son thedr iver displa y,acon tinuous
wa rning tone sou nds, theve hicle nolong er
acceler ates, and ther eis aslight, repeat ed
te nsi oni ng oftheseat belt.
R The vehicle speed isreduced inincr ement s
until itis at ast ands till.Sh arpbr ak eim pul‐
ses arealso produc ed.
De pen dingon thecount ry,a lane chang eto the
adjac entright-h andlane iscar ried out, ifpossi‐
ble.
% Itis onl ypossible tochang eacr oss onelane
and onlyinto theright-h andlane, andnot
ont oth ehar dshoulder .
When automatic braking isinitiat ed,ActiveDis ‐
ta nce AssistDIS TRONI Cis de acti vated. Depen d‐ing
onthecount ry,th ehazar dwa rning light sys‐
te m isswitc hedon.
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 The vehicle isunloc ked.
R Ifpossible, anemer gency callis place dto
th eMer cedes- Benzemergency callcent er.
Bef oreau tomatic braking isinitia ted, youcan
can celActiveEmerg encyStop Assis tby steer‐
ing.
Yo ucan canceltheint erve ntio nby ActiveEmer ‐
ge ncy Stop Assis taf te rau tomatic braking isini‐
tiat edbyone ofthefo llo wing actions :
R Accel erati ng orbraki ng: theemer gency stop
is canceled, butthewa rning mess age, wa rn‐
ing tone and powe rst eer ing remain active
R Steer ing: powe r-assis tedsteer ing iscan‐
celed, thewa rning mess ageand warning
to ne remain activeand theve hicle continues
to be brak ed 228
Driving andparking

pur
pose, information from thedigit alroad map
of thena vig ation system isused. Depen dingon
th ecur rent situa tionand theassumed route, the
displa ymessag eis sho wnupto380 yds(350 m)
in adv ance. TheAssista ncemenu canalso dis‐
pla ya dyna micvisualizatio nof thespeed limits
ahead.
If Traf fic Sign Assistcanno tde term ine thecur‐
re ntly applica ble ma ximu mperm issible speed
(e.g. duetomissi ngsigns), thefo llo wing displa y
appear son thedr iver displa y: Tr
af fic Sign Assistisno tav ailable inall coun ‐
tr ies. Ifth eve hicle isin acountr ywher eTr af fic
Sig nAssi stisno tsuppor ted, this isdispla yed
continu ously .
% Also observe theinf ormation ondispla ymes‐
sag esinTraf fic Sign Assist(/ pag e495 ). Wa
rning when thema xim um permis sible
speed isexc eeded
The system can warnyouif yo uunin tentio nally
exc eed themaximum permissible speed.Todo
th is, youcan spec ifyinthemultimedia system
by howmuc hth emaximum permissible speed
can beexc eeded beforeawa rning isissued. You
can setth ewa rning tovisu alonly (the traf fic
sign flashes thre etimes onthedr iver displa y)or
visual andacous tic,including awa rning tone.
Ad diti onalfunc tions ofTraf fic Sign Assis t
(count ry-spec ific )
Wa rning forno -en try sign s:Traf fic Sign Assist
can warnyouif yo udr ive th ewr ong waydo wn a
sec tion ofroad, forex am ple onfree wa yacc ess
ro ads orone-w aystre ets.
Wa rning atpedes trian crossings: Ifyo u
appr oachpedes trian cross ings,prov ided that
pedes trians arein thedang erzon eor aremo ving
to wa rdsit, Traf fic Sign Assistcan warnyouup to
a spee dof appr oximat ely44 mph(70 km/h).
Wa rning atstop signs: Traf fic Sign Assistcan
wa rnyouup toaspee dof appr oximat ely44 mph
(70 km/ h)ifyo uar eabout todrive pas ta st op sign
unint ention ally.Fo rth is to be possible, the
signs mustbe clear ,fo rex am ple ifth esy stem
de tects mor eth an onestop sign, orast op sign
can beconf irmed using thedigit alna vig ation
map. Nowarning can beissued ifse veraldif fer‐
ent signs arede tected.
Wa rning atredlights: Traf fic Sign Assistcan
wa rnyouup toaspee dof appr oximat ely44 mph
(70 km/ h)ifyo uar eabout todrive th ro ugh are d
light unintentio nally.
The follo wing condition smus tbe fulf illed:
R Severaltr af fic lights have been detected.
R Alltraf fic lights detected arere d.
R Atleas tone ofthere dtraf fic lights detected
is on thefront passeng erside beside the
ve hicle's ownlane.
R The traf fic lights arein thefo llo wing
seq uenc e(fr om topto bottom): red, yello w,
gr ee n. 23
8
Drivin gand parking

A
se ttur nsigna lle ft or right and lane recom‐
mend ations during acti verouteguidan ceare
ta ke nint oacco untforth edispla y.
The service isforinf ormation purposes onlyand
is no tlink edtoanyot her vehicle functions, sys‐
te ms orcom ponents. Pleasenote that thedis‐
pla yeddat ais no tav ailable inall traf fic ar ea s
and maybe incor rect.
Ce rtain light signalsystems automaticall yadap t
th eir switc hingtimes tothecur rent traf fic situ a‐
tion. Thiscan lead toasudden chang ein the
cou ntdo wndispl ay.
The driver displa yis sho wnafte rsele cting the
Assi stance menu .If ano ther menu isselect ed,
th etraf fic light countdo wnisno tdi spl ayed.
Also obser vethefo llo wing informatio n:
R Selec ta speed adaptedto thetraf fic, sur‐
ro und ingsand weather condition s
R Obse rveactual traffic sign s
R Obser veapplic abletraffic ru les and regula‐
tions Obser
vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers.
Sy stem limit s
The displa ydoes notappear inthefo llo wing sit‐
uation s,forex am ple:
R Ther eis no traf fic light data available.
R The timere maini nguntil thene xt green
phase isless than tenseco nds.
R Emerg encyvehicles orlocal publictranspor t
ar elocat edinthevicinit yof theint ersect ion.
R The datatra nsmiss ionfrom theve hicle has
been interru pte d.
R Light signal systems arelocat edinacon ‐
st ru ction sitear ea orarebei ng mai ntained.
R The light signal system ismalfunct ioning.
R The subscr iption totheser vice hasexpir ed. Ac
tiv eBli nd Spo tAs sist wit hex itwa rning Fu
nction ofActiv eBli nd Spo tAs sist wit hex it
wa rning
Ac tiveBli nd Spo tAssi stuses radar sensor sto
monit orthear ea up to130ft (40 m)behind and
10 ft(3 m) next to your vehicle.
The system can detect vehicles trave ling from
speeds ofappr oximat ely8 mp h(12 km/h) and
issue awa rning ifth ey mo veintoth emonit oring
ra ng e.
St atus displa yin thedr iver's displa y
¸ Gray:th esy stem isactiv ated but inoper a‐
tiv e.
¸ Green: thesy stem isactiv ated and oper a‐
tion al. 24
2
Driving and parking

pension
andconstant groun dcle aranc e,eve n
wit haladen vehicle. When driving atspeed, the
ve hicle islowe redaut omatic allytoimprove driv‐
ing safetyand toreduce fuelconsum ption. The
suspen sionsetting isadjus teddependin gon the
ro ad sur face, vehicle loadandthedr ive pr ogr am
select ed.
The ROAD SUR FACE SCAN function detects
ar ea sof une venness inthero ad bef oreyo udr ive
ove rth em bymeans ofamultifu nctioncamera.
This reduces chassis movements.
The dam ping isadju sted individually toeac h
wheel anddepends onthefo llo wing fact or s:
R Driving style, e.g. spor ty
R Road con dition ,e.g .bum ps
R Drive pr ogram
E- AC TIVE BODY CONTR OLiscom prised ofthe
fo llo wing functionsand compone nts:
R Vehicl eswith Drivin gAss istanc ePa ck‐
ag e:RO AD SUR FACE SCAN
R Cur veinc linat ionfunc tion CURVE
R Airsuspen sionwithaut omat icleve lcon trol R
Speed -dependentlo we ring toreduce fuel
con sum ption
R ADSPL US: AdaptiveDam pingSy stem with
con stant adjus tment ofdam pingch aract eris‐
tic s
R DYNA MIC SELE CTbutt onforsele cting a
dr ive pr ogr am (/ page19 4)
R Manua lle ve ladjus tment viathemultimedia
sy stem
Dr ive pr og ram C andB
R The susp ension setting isfirm er.
R The vehicle issetto low leve l-1 .
R The vehicle islowe redto low leve l-2 when
dr ivin gat speeds aboveappr ox.75 mph
(1 20 km/ h).
R When driving atspeeds belowappr ox.
50 mph(80 km/h), theve hicle israised
ag ain tolow leve l-1 .
R ROAD SUR FACE SCAN isact ive.
Dr ive pr og ram A, Nand;
R The susp ension setting iscomf ortable. R
The vehicle issetto thenor mal leve l.
R The vehicle islowe redto low leve l-1 when
dr ivin gat speeds above75 mph(120 km/h).
R The vehicle islowe redto low leve l-2 when
dr ivin gat speeds above100mp h
(1 60 km/ h).
R When driving atspeeds below75 mph
(1 20 km/ h),theve hicle israised again tolow
le ve l-1 .
R When drivin gat speeds below50 mph
(80 km/ h),theve hicle israised again tothe
nor malle ve l.
R A andN: ROAD SUR FACE SCAN is
act ive.
R N: thecur veinc linat ionfunc tion isact ive.
% Oper ation withatrailer orbicy clerack :if
th eelectr icalconnect ionhas been correctly
es tablished, theve hicle, irre spectiv eof
speed orthedr ive pr og ram sele cted, isno t
au tomatical lylowe redor raised butrath er
re mains atnor mal leve l. Dr
ivin gand parking 25
1

maneu
vering area while ma neu vering and park‐
ing.
% The area behin dth eve hicle isdispla yedas a
mir rorimag e,as intheinside rear vie wmir ‐
ro r. Camer
aViews menu(top view)
1 Park ingAssist anc emen u
2 Rear vie wcam erawit hto pvie w 3
Wide-ang levie w
4 Activates /de activatesPa rking Assist
PA RK TRONI C(/ page26 3)
5 Warning displa yof Parking Assist
PA RK TRONI C(/ page26 0)
6 Guide lines atadis tance ofapprox imat ely
1. 6 ft (0.5 m),3.3 ft(1.0 m), 5ft (1.5 m) and
9.9 ft(3.0 m)from there ar area
7 Path mar king thecour sethetir es will take
wit hth ecur rent steer ing wheel angle
(dynamic)
8 Driven sur face dep endi ngon thecur rent
st eer ing wheel angle(dynamic)
9 Guide lineatadis tance ofapprox imat ely
1. 0 ft (0.3 m)from there ar area
% When ActivePa rking Assistis act ive, lanes
7 aredispla yedin green (/page263). Wi
de-ang levie w
Sy stem limit s
If th esy stem isno tre ady foroper ation, theSys-
tem Inoper ativemessag eappear son thecent ral
displa y. 25
4
Driving andparking

Menu
overview Camer aViews 1
Menu Parkin gAss istan ce
2 Topvie wwit himag efrom thefront camer a
3 Topvie wwit himag efrom there ar vie wcam ‐
er a
4 3Dview, left-hand sideoftheve hicle
5 3Dview, right- hand sideoftheve hicle
6 3Dautovie w 7
Toact ivat e/d eact ivat ePa rking Assist
PA RK TRONI C(/ page26 3)
8 Tosetth eGPS activation point
(/ page259)
9 Toswitc hbe tween standar dand wide- angle
vie w
% Inall views,th ePa rking AssistPA RK TRONI C
wa rning displa yis sho wn(/ page260). Fu
nction oftheguid elines 1
Guide linesatadis tance ofapprox imat ely
1. 6 ft (0.5 m),3.3 ft(1.0 m), 5ft (1.5 m) and
9.9 ft(3.0 m)from there ar area
2 Path mar king thecour sethetir es will take
wit hth ecur rent steer ing wheel angle
(dynamic)
3 Driven sur face dep endi ngon thecur rent
st eer ing wheel angle(dynamic)
4 Guide lineatadis tance ofapprox imat ely
1. 0 ft (0.3 m)from there ar area 256
Drivin gand parking

%
When ActivePa rking Assistis act ive, lanes
and guide linesaredispla yedin green
ins tead ofyello w(/ page263 ).
To pvie wwi th imag efrom the fron tor rear
vie wcamer a
If th efunc tion isactiv ated, theimag efrom the
re ar vie wcam erais aut omat icallydispla yedon
th ecent raldispla ywhen reve rsege ar isselec ‐
te d. 1
Warning displa yof Parking Assist
PA RK TRONI C(/ page26 0)
2 Your vehicle from above
3 Lane indicating thero uteth eve hicle will
ta ke atthecur rent steer ing ang le 3D
view,left/r ight -hand side oftheve hicl e
* NO
TERisk ofacci dent dueto object s
being severely dist or tedin thedispla yor
no tdispla yedat all Due
tothepr ojec tion ofthecamer as,
objec tsinthe3D views maybe severely dis‐
to rted when displayedor notdispla yedat all. #
Mak esur eth at ther ear eno per sons,
animals orobjec tsetc. in themaneu‐
ve ring area while ma neu vering and
pa rking. 1
Disp lay of Parking AssistPA RK TRONI C
(/ page26 0)
In the3D view, left-/r ight -han dside oftheve hi‐
cle, thevir tual camer amo vesto there spectiv e
side oftheve hicle. When youch ang eth etra ns‐
mission position,th evie wisaut omatic allyadap‐
te d.
3D autovie w
% The area behind theve hicle isno tdispla yed
as amir rorimag eas isusu alin the3D
vie ws. Dr
iving and parking 25
7