ECU MERCEDES-BENZ G-CLASS 2020 Service Manual

#
When usingtheint egr ated garage door
opener ,alw aysmak esur eth at nobody
is wit hin thera ng eof mo vement ofthe
door . Onl
yoper ateth efo llo wing doorsusing the
ga rage door opener :
R Door swit hasaf etyst op and reve rsing fea‐
tur e.
R Doorswhic hcon form tothecur rent U.S.
sa fety standar ds.
Re quirement s:
R The vehicle hasbeen parkedoutside the
ga rage oroutside thera ng eof mo vement of
th edoor .
R The engine isswitc hedoff.
R The ignition isswitc hedon.
% The garage door opener function isalw ays
av ailable whentheignition isswitc hedon. #
Chec kif th etra nsmiss ionfreq uency ofthe
re mo tecontr olha sth efreq uency rang eof
280 to868 MHz.
Ra dio equipment approval num ber:
R NZLM UAHL5 (USA)
R 4112 A-MU AHL5 (Canada ) #
Press and hold button1, 2or3 that you
wish toprog ram.
Indicat orlam p4 flashes yello w.
% Itcan take up to20 seconds beforeth eindi‐
cat orlam pflashes yello w. #
Release thepr ev iousl ypr essed button.
Ind icat orlam p4 con tinues toflash yello w. #
Point remo tecontr ol5 from adi st anc eof
0. 4in (1 cm )to 3in (8 cm) towa rdsbutt on
1, 2or3. #
Press and hold button6 ofremo tecontr ol
5 unti lone ofthefo llo wing signalsappear s:
R Indicat orlam p4 light sup green contin‐
uousl y.Progr amming iscom plete.
R Indicat orlam p4 flashes green .Pr o‐
gr ammi ngwassuccessful. Addition ally,
sync hronization ofthero lling code with
th edoor system mus talso becar ried out. #
Ifindicat orlam p4 does notlight uporflash
gr ee n: repeat thepr ocedur e. #
Release allofthebutt ons. Dr
iving andparking 15
7

Ra
dio equipme ntappr oval number s Br
azil
Es te equipament ooper aem caráter secundár io,
is to é,não tem dir eitoàpr oteção contra int erfer‐
ência prejudi cial,mesmo deestações domesm o
tipo ,e não podecau sar interferê ncia asist emas
oper ando emcaráter primár io.
Pa ra maio resinf ormações acessar
www .anat el.gov.br Ra
dio equipme ntappr oval number s Co
untr yR adiotype approval number
Egyp tT AC.25 111 51293.WIR
Andor ra CE
Au stra lia R-NZ
Barbad osMED1 578
Chile 2488/DFRS205 76/F -74
Eur ope an
Union CE
Gi bralta rC E
Iceland CE
Jor dan TRC/LPD/20 15/299
Ca nad aI C:4112 A-MU AHL5
Ku wa it CE
Liec hten‐
st ein CE Countr
yRadiotype approval number
Me xico RCPGEMU1 5-0448
Monaco CE
Ne wZea‐
land R-
NZ
Nor wayC E
Ru ssian
Fe der a‐
tion No
tre qu ired
Saudi Ara‐
bia TA
10525
Switzer‐
la nd CE
Sout h
Afr ica TA
-20 15/1 386
Tu rkey Notre qu ired 16
0
Driving and parking

#
Push handle 1.
The red0049 (USA)or0024 (Canada) indica‐
to rlam papp earsin theins trument cluster.
% The electr icpar king brak eis onl ysecur ely
applied ifth eindicat orlam pis lit con tinu‐
ously .
Re leasing #
Swit chon theignition . #
Pull handle 1.
The red0049 (USA)or0024 (Canada) indica‐
to rlam pin theins trument clustergoes out.
Emer gency braking #
Press and hold handle 1.
As long astheve hicle isdriving, thePlease
Release ParkingBrak emessag eis displa yed.
When theve hicle hasbeen brak ed toa
st ands till,th eelectr icpar king brak eis
applied. Thered0049 (USA)or0024 (Can‐
ada) indicat orlam pappear sin theins tru‐
ment cluster. Inf
orma tion ondetectin gda ma geon a
pa rked vehicl e If
acolli sion isde tected whe nth eto w- aw ay
alar misarmed onaloc kedve hicle, youwill
re cei veano tificat ion inthemultimedia system
when youswit chon theignition .
Yo uwill recei veinformatio nabout thefo llo wing
point s:
R The area oftheve hicle that ma yha ve been
damag ed.
R The forc eof theim pact.
The follo wing situat ionscanlead toinadv ertent
acti vatio n:
R Thepa rked vehicle ismo ved, e.g. inatw o-
st or yga rage .
% Dea ctivateth eto w- aw ay alar minorder to
pr eve ntina dvertent acti vatio n.Ifyo udeac ti‐
va te theto w- aw ay alar m,damag ede tection
wi llal so be dea ctivated.
% Inthecase ofsevere batt erydisc harging,
th efunc tion forde tecting damag eon a pa
rked vehicle isaut omaticall ydeactiv ated
to facil itat eth ene xt engine star t.
Sy stem limit s
De tection maybe restrict ed inthefo llo wing sit‐
uation s:
R The vehicle isdamag edwithout impact, e.g.
if an outside mirroris torn offor thepaint is
damag edbyake y.
R Impact occur sat low speed .
R The electr icpar king brak eis no tappl ied. No
teson par king theve hicl efo ran extended
per iod If
yo ulea vetheve hicle parkedfo rlong erthan six
we eks,itma ysuf ferdisu sedama ge.
The 12Vbatt eryma yalso beimpair edordam‐
ag ed byhea vydisc harging.
% Further information canbeobt ained ata
qu alif ied spec ialistwo rkshop. Dr
iving andparking 16
3

Ac
tiv atin g/deac tivatin gES P®
(E lectr onicSta‐
bil ity Prog ram) #
Todeac tivateES P®
:pr ess button 1 unti l
th e00BB ESP®
OFF warning lam plight sup in
th eins trument cluster.The 00E5 OFFmes‐
sag eappear sin themultifunc tiondispla y. #
Toactiv ateESP ®
:br ief lypress butt on1.
The 00BB ESP®
OFF warning lam pin the
ins trumen tclus tergoes out.
Obser vetheinf ormation onwarning lam psand
displa ymess ages whic hma ybe sho wninthe
ins trumen tclus ter. Fu
nction ofESP ®
trailer stabil izatio n &
WARNIN GRisk ofacci dent inpoo rro ad
and weather condition s
In poor road and weather condition s,the
tr ai le rst abiliz ationcan notpr eve ntlurc hing of
th eve hicle/tr ailercombination. Trailer swit h
a high centerof grav ity ma ytip over bef ore
ES P®
de tects this. #
Alw aysadap tyo ur drivin gst yle to suit
th ecur rent road and weather condi‐
tio ns. When
drivin gwit hatrailer ,ES P®
can stabiliz e
yo ur vehicle ifth etrailer begins tosw erve from
side toside:
R ESP ®
traile rst abiliz ationis act ive abo ve
speeds of40 mph(65 km/h).
R Slight swerving isreduced bymeans ofata r‐
ge ted, individual brak eapplication onone
side.
R Intheeve ntofsevere sw erving, theengine
output isalso reduced andallwheels are
br ak ed.
ES P®
tra iler stabiliz ationma ybe impair edor
ma yno tfun ction if:
R The trailer isno tcon nectedcor rectl yor is
no tde tected prope rly by theve hicle. Fu
nction ofEBD (electr onicbrak efo rc edis‐
tr ibut ion) EB
Dis ch aract erize dby thefo llo wing:
R Mon itor ing and regulating thebr ak epr essur e
on there ar wheels . 16
8
Driving and parking

Oper
ating cruise contr ol &
WARNIN GRisk ofacci dent dueto stor ed
speed
If yo ucall upthestor ed speed andthis is
lo we rth an your cur rent spe ed,th eve hicle
deceler ates. #
Take intoacc ount thetra ffic situat ion
bef orecallin gup thestor ed speed. Re
quirement s:
R ESP®
mus tbe act ivat ed, but notint erve ning .
R The driven spe edisat leas t15 mp h
(20 km/ h).
R The transmis sionisin positio n005B. #
Toactiv atecr uise contr ol: press rock er
switc h1 up. #
Toactiv atecr uise contr ol: press rock er
switc h2 up(SET +)or down (SET -).
The current spe edisstor ed and maint ained
by theve hicle.
or #
Press rock er switc h3 up(RES).
The lastst or ed speed iscalled upand main‐
ta ined bytheve hicle.
If th elas tst or ed speed hasprev iousl ybeen
dele ted, thecur rently driven spe edisstor ed.
% When youswit choffth eve hicle, thelas t
speed stor ed isclear ed. #
Toincr ease/r educespeed:pr ess rock er
switc h2 up(SET +)or down (SET -)to the
pr essur epoint .
The stor ed speed isincr eased orreduced by
1 mp h(1 km/h) .
or #
Press rock er switc h2 up(SET +)or down
(SET -)be yond thepr essur epoint .
The stor ed speed isincr eased orreduced by
5 mp h(1 0 km/h) .
or #
Accel erateth eve hicle tothedesir edspeed. #
Press rock er switc h2 up(SET +). #
Todeac tivatecr uis eco ntr ol:
pr ess rock er switc h3 down (CNCL). Dr
iving andparking 17
3

#
Toactiv ate/ deacti vate Activ eDi stance
Ass istDI ST RO NIC :press button 1. #
Toactiv ateAc tiv eDi stance Assist
DI ST RO NIC :press rock er switc h3 up(SET
+) or down (SET -),or press rock er switc h4
up (RES). Remo veyour foot from theacceler‐
at or pedal.
The current spe edisstor ed and maint ained
by theve hicle. or #
Toactiv ateAc tiv eDi stance Assist
DI ST RO NIC with ast or ed speed :pr ess
ro ck er switc h4 up(RES). Remo veyour foot
fr om theacceler ator pedal. #
Topull away wit hAc tiv eDi stance Assist
DI ST RO NIC :re mo veyour foot from the
br ak epedal andactiv ateAc tiveDis tance
Assi stDIS TRONI C. #
Press rock er switc h4 up(RES).
or #
Depr esstheacceler ator pedal brief lyand
fi rm ly.
The funct ionsofActiveDis tan ceAssi st
DIS TRONI Cconti nuetobe car ried out. &
WARNIN GRisk ofacci dent dueto Active
Dis tance AssistDIS TRONI Cstill being
act ivat ed when youlea vethedr iver's
seat
If yo ulea vethedr iver's seat while theve hicle
is being brak ed byActiveDis tan ceAssi st
DIS TRONI Conly ,th eve hicle canrollaw ay. #
Alw aysdeactiv ateAc tiveDis tance
Assi stDIS TRONI Cand secur eth eve hi‐
cle topreve ntitfrom rolling away
bef oreyo ulea vethedr iver's seat. #
Todeac tivateAc tiv eDi stance Assist
DI ST RO NIC :press rock er switc h4 down
(CNCL). #
Toincr ease/r educespeed:pr ess rock er
switc h3 up(SET +)or down (SET -)to the
pr essur epoint .
The stor ed speed isincr eased orreduced by
1 mp h(1 km/h) .
or #
Press rock er switc h3 up(SET +)or down
(SET -)to thepr essur epoint andhold.
The stor ed speed isincr eased orreduced in
incr ement sof 1mp h(1 km/h).
or #
Press rock er switc h3 up(SET +)or down
(SET -)be yond thepr essur epoint .
The stor ed speed isincr eased orreduced by
5 mp h(1 0 km/h) . 17
6
Driving and parking

3
ActiveDis tance AssistDIS TRONI Cacti ve,
speed stor ed, novehicle detected (gray vehi‐
cle symbol)
4 ActiveDis tance AssistDIS TRONI Cacti ve,
speed stor ed, vehicle detected (green vehi‐
cle symbol)
Speedome ter
The stor ed speed ishighlight edon thespeedom‐
et er.If th espeed oftheve hicle infront isless
th an thestor ed speed, thesegment sin the
speedome terlig ht up. The deactivation ofActive
Dis tance AssistDIS TRONI C,as wellas altera‐
tion sto thestor ed speed andthedis tance tobe
maint ained, aredispla yedin thecon trol feed‐
bac kof themultifunc tiondispla yon asing leline. 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 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. 17
8
Driving and parking

*
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 The transmis sionisin position 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 The transmission isswitc hedtoposition 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 orby theelectr icpar k‐
ing 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. Fu
nction ofadj ustable damping The
variable adjus table dam ping improve sdr iv‐
ing comf ortand ensur esthebes tpossible sus‐
pension ,eve nwi th aladen vehicle. Thedam ping
is adjus teddependin gon thedr ive pr og ram
select edorwhen usingtheof f-r oad systems.
The adjus table dam ping consistsof:
R Steel suspension
R Threedam persettings: Comf ort,Spor tand
Of f-road Dr
iving andparking 17
9

When
youen gage reve rsege ar,th eimag efrom
re ar vie wcam era1 issho wninthemultimedia
sy stem. Dynamic guidelinesshowthepat hth e
ve hicle willtake wit hth esteer ing wheel inits
cur rent positio n.Thi shel psyouto orient your‐
self and toavoid obstacle swhe nba cking up.
The rear vie wcam erais on lyan aid. Itis no ta
subs titutefo ryo ur att entio nto thesur round ings.
The responsibili tyforsaf emaneu vering and pa
rking remains withyo u. Mak esur eth at ther e
ar eno per sons, animals orobjec tsetc., inthe
maneu vering area while ma neu vering and park‐
ing.
The guide linesinthemedia displaysho wthe
dis tances toyour vehicle. Thedistances dis‐
pl ay ed onlyapply toroad leve l.
Yo ucan selectfrom thefo llo wing views:
R Normalvie w
R Wide-ang levie w
The area behind theve hicle isdispla yedas a
mir rorimag e,as intheinside rear vie wmir ror.
Ve hicl eswithout Activ ePa rking Assis t
The follo wing camer avie ws areav ailable inthe
multime diasystem: Nor
mal view
1 Yello wguide line,vehicle width(dr iven sur‐
fa ce) dep endi ngon thecur rent steer ing
wheel angle(dynamic)
2 Yello wlane markingth ecour sethetir es will
ta ke atthecur rent steer ing wheel angle
(dynamic)
3 Yello wguide lineatadis tance ofapprox ‐
imat ely3. 3ft (1.0 m) from there ar area
4 Bum per
5 Redguide lineatadis tance ofapprox imat ely
1. 0 in (0.3 m)from there ar area 18
6
Driving and parking

Wi
de-ang levie w
Ve hicl eswith Activ ePa rking Assis t
The follo wing camera views areav ailable inthe
multime diasystem: Nor
mal view
1 Yello wlane markingth ecour sethetir es will
ta ke atthecur rent steer ing wheel angle
(dynamic)
2 Yello wguide line,vehicle width(dr iven sur‐
fa ce) dep endi ngon thecur rent steer ing
wheel angle(dynamic)
3 Redguide lineatadis tance ofapprox imat ely
1. 0 in (0.3 m)from there ar area
4 Yello wwa rning indic ator ofParking Assist
PA RK TRONI C:obs tacles atadis tance
be twee nap prox imat ely2. 0ft (0.6 m)and
3.3 ft(1.0 m) 5
Redwa rning displa yof Parking Assist
PA RK TRONI C:obs tacles areve ry clos e
(a ppr oximat ely1. 0 ft (0.3 m)orless)
6 Orang ewa rning displa yof Parking Assist
PA RK TRONI C:obs tacles areamed iumdis‐
ta nce away (be tween appr oximat ely1. 0 ft
(0.3 m)and 2.0ft(0.6 m))
% Ifth eent ire sy stem fails, thesegment sof
th ewa rning displa yar esho wninred. The
indicat orlam pon thePA RK TRONI Cbut ton
light sup and theé symbol appearsin
th emultifunc tiondispla y.
If th esy stem fails atthere ar,th edispla yof
th esegment sch ang esasfollo ws :
R The rear segm entsar esho wninred
when backingup.
R The rear segm entsar ehidde nwhen driv‐
ing forw ards.
If Pa rking AssistPA RK TRONI Cis deac tiva ted,
th ewa rning displa yfa des out(/ page18 2). Dr
iving and parking 18
7