2020 MERCEDES-BENZ G-CLASS Owner's Manual

Dur
ing star tin gassis tance orbatter ych arg‐
ing ,bat tery gascan bereleased. #
Alw aysallo wabatt eryto thaw before
ch argin git or per form ing star tin gassis ‐
ta nce. If
th eindicat or/warning lampsintheins trument
clus terdo notlig ht up atlow temp eratur es,itis
ve ry likelyth at thedisc hargedbatt eryhas fro‐
zen .In this case youma yne ither jump-start the
ve hicle norcharge thebatt ery.
The service life of abatt eryth at has been
th awe dma ybe dramaticall yshor tened .The
st ar tin gch aract eristic sma ybe impair ed,espe ‐
ciall yat low temp eratur es.
It is recomme ndedthat youha ve ath aw ed bat‐
te ry checkedat aqu alif ied spec ialistwo rkshop.
* NO
TEDama gecau sed bynum erou sor
ex tende datt em ptsto star tth eengine Nu
me rous orextende datt em ptsto star tth e
engine maydamag eth ecat alytic converter
due tonon-co mbusted fuel. #
Avoid numer ousand extende datt em pts
to star tth eengine. Obser
vethefo llo wing pointsdur ing star tin g
assis tance and when chargin gth ebatt ery:
R Onlyuse undamag edjum per cables/c harg‐
ing cables withasuf ficie ntcross -secti onand
insu late dte rm inal clam ps.
R Non-insulat edpar tsof thete rm inal clam ps
mus tno tcom eint ocon tactwi th other metal
par tswhile thejum per cable/c harging cable
is con nect edtothebatt ery/jum p-start con‐
nectio npoi nt.
R The jumper cable/c harging cable mustno t
com eint ocon tactwi th anypar tswhic hma y
mo vewhen theengine isrunning .
R Alw aysmak esur eth at nei ther youno rth e
batt eryis elect rostatic allych arge d.
R Keep away from fire and open flames .
R Donotlean overth ebatt ery. Obser
vetheadditional follo wing pointswhen
ch argin gth ebatt ery:
R Onlyuse batterych arge rs tested and
appr oved forMer cedes-Benz.
R Read thebatt erych arge r's oper ating instruc‐
tions beforech argin gth ebatt ery.
Obser vetheadditional follo wing pointsdur ing
st ar tin gassis tance:
R Startin gassis tance mayonly beprov ided
using batteries withanom inalvoltag eof
12 V.
R The vehicles mustno tto uc h.
R Gasoline engine :On lyacc eptst ar tin gassis ‐
ta nce ifth eengine andexhaus tsy stem are
cold. St
arting assistance andchargin gth e12 V
batt ery Re
quirement s
R The vehicle issecur edwithth eelectr icpar k‐
ing brak e.
R The transmiss ionisin position 005D. Br
eakdo wnassis tance 37
5

R
The ignition andallelectr icalconsumer sar e
switc hedoff.
R The hood isopen. #
Slide cover1 ofposi tiveclam p2 onthe
jum p-starting con nection point inthedir ec‐
tion ofthear row . #
Con nect posi tiveclam p2 onyour vehicle to
th epositiv epole ofthedonor batteryusing th
ejum per cable/c harging cable. Always
begin withpositiv eclam p2 onyour ow n
ve hicle firs t. #
During star ting assistance :st ar tth e
engine ofthedonor vehicle andrunat idle
spe ed. #
Connect theneg ativepole ofthedonor bat‐
te ry and grou nd point 3 ofyour ow nve hicle
by usin gth ejum per cable/c harging cable.
Begin withth edonor batteryfirs t. #
During star ting assistance :st ar tth e
engine ofyour ow nve hicle. #
Dur ing thech argin gpr oc ess :st ar tth e
ch argin gpr oce ss. #
Dur ing star ting assistance :le tth eengines
ru nfo rse veralmin utes. #
Dur ing star ting assistance :bef oredis con‐
necting thejum per cable, switchon anelec‐
tr ical consumer inyour ow nve hicle, e.g.the
re ar wind owheat eror lighting.
When thest ar tin gassis tance/c harging proce ss
is com plet e: #
First,re mo vethejum per cable/c harging
cable from ground point 3and theneg ative
pole ofthedonor battery, then from positiv e
clam p2 and thepositiv epole ofthedonor
batt ery. Begi nea ch tim ewi th thecon tacts
on your ow nve hicle firs t. #
Afterre mo ving thejum per cable/c harging
cable, closecover1 ofposi tiveclam p2.
Fu rther information canbeobt ained ataqu ali‐
fi ed specialis two rkshop. Re
plac ingthe 12Vbatt ery #
Obs erve theno teson the12 Vbatt ery
(/ page37 2).
Mer cedes -Benz recomme ndsthat youha ve the
12 Vbatt eryre placed ataqu alif ied spec ialist
wo rkshop, e.g.atan aut hor ized Mercedes-Benz
Cent er. 37
6
Brea kdo wnassista nce

Obser
vethefo llo wing notesif yo uwa ntto
re place thebatt eryyo urself :
R Alw aysre place afa ulty battery wit habatt ery
whic hmee tsthespecif icvehicle requ ire‐
men ts.
The vehicle iseq uipped withan AGMtech nol ‐
ogy batter y(A bso rbentGlas sMa t).Fullve hi‐
cle funct ionality isonl yguar anteed withan
AG Mbatt ery. Fo rsaf etyre ason s,Mer cedes-
Ben zre comme ndsthat youon lyuse batter‐
ies whichhave been tested and appr ovedfo r
yo ur vehicle byMer cedes-Ben z.
R Carryove rde tach able parts,suc has vent
hos es,elbo wfitting sor term inal covers from
th ebatt erybeing replaced. R
Mak esur eth at theve nt hos eis alwa ys con‐
nect edtotheor iginal opening ontheside of
th ebatt ery.
Ins tallan yex istin gor supplied cellcaps.
Ot her wise, gases orbatt eryacid could
escape.
R Mak esur eth at detach able partsarere con‐
nect edinthesame way. To
w star ting ortowing away Pe
rm itted towing methods Mer
cede s-Ben zre comme ndstransp orting your
ve hicle inthecase ofabr eakdo wn,rath er than
to wing itaw ay. Fo
rto wing, useato w rope ortow bar withbo th
axle son thegr ound. Donotuse tow bar sys‐
te ms.
* NO
TEDama getotheve hicle duetotow‐
ing away inc orrectl y #
Obs erve theins truction sand noteson
to wing away. %
Ifyo uto w theve hicle withra ised front or
re ar axle s,yo umus tre mo vethepr opeller
shaf tbe tween thetra nsf ercase andthero ll‐
ing axles. Br
eakdo wnassis tance 37
7

Pe
rm itted towing methods Bo
th axle son thegr ound Fr
ont axle raised Re
ar axle raised
Ye s,maximum 31mile s(50 km) at31 mp h
(50 km/ h) Ye
sY esTo
wing theve hicl ewith both axle son the
gr ound #
Obser vetheno teson theper mitt edtowing
me thods (/page37 7). #
Makesur eth at thebatt eryis con nect edand
ch arge d.
When thebatt eryis disc harged:
R The engin ecann otbe star ted.
R The elect ric pa rking brak ecan notbe
re leased orapplied.
R The transmissio ncan notbe shif tedto posi‐
tion 005Cor005D. %
Ifth etransmission cannotbe shif tedto posi‐
tion 005C,transpor tth eve hicle (/page380).
A towing vehicle withlifting equipment is
re qu ired forve hicle transpor tatio n.
* NO
TEDama gedue totowing away at
exc essiv elyhigh speeds orove rlong dis‐
ta nces The
drivet ra in could bedamag edwhen tow‐
ing atexc essiv elyhigh speeds orover long
dis tances. #
Atowing speed of30 mph(50 km/h)
mus tno tbe exc eeded. #
Atowing distance of30 miles(50 km)
mu stnotbe exc eeded. &
WARNIN GRisk ofacci dent whento wing
a ve hicle whichis toohea vy
If th eve hicle being tow- star tedor towe d
aw ay ishea vier than theper missible gross
mass ofyour vehicle, thefo llo wing situat ions
can occur:
R The towing eyema ybecome detach ed.
R The vehicle/tr ailercombination may
sw erve oreve nov ertur n. 37
8
Brea kdo wnassista nce

#
Ifano ther vehicle istow- star tedor
to we daw ay,its weight mustno texc eed
th eper missible gross mass ofyour ow n
ve hicle. If
ave hicle mustbe tow- star tedor towe daw ay,
its per missib legross weight mustno texc eed the
per missible gross weight oftheto wing vehicle. #
Information ontheper missible gross weight
of theve hicle canbefound ontheve hicle
identif ication plate(/ page41 5). #
Donotopen thedr iver's door orfront
passeng erdoor ,ot her wise thetransmission
aut omaticall yshif tsto position 005D. #
Fasten theto w bar totheto wing eyes.
* NO
TEDama gedue toinc orrect connec‐
tion oftheto w bar #
Onlyconnect theto w rope ortow bar to
th eto wing eyes. #
Donotactiv ateth eHOLD function. #
Deact ivat eth eto w- aw ay alar m(/ page79) . #
Deact ivat eAc tiveBr ak eAssi st(/ pag e17 1). #
Shif tth etra nsmiss iontoposition 005C. #
Release theelectr icpar king brak e. &
WARNIN GRisk ofacci dent dueto limi‐
te dsaf ety-re lat ed func tionsdur ing the
to wing proce ss
Saf ety-re lat ed func tionsar elimit edorno lon‐
ge rav ailable inthefo llo wing situat ions:
R theignition isswitc hedoff.
R thebr ak esy stem orpowe rst eer ing sys‐
te m ismalfu nctioning.
R theener gysupply ortheon- boar delectr i‐
cal system ismalfunct ioning.
When your vehicle isthen towe daw ay,signif ‐
icant lymor eef fort ma ybe requ ired tosteer
and brak eth an isno rm allyre qu ired. #
Use ato w bar . #
Mak esur eth at thesteer ing wheel can
mo vefreely ,bef oreto wing theve hicle
aw ay. *
NO
TEDama gedue toexcess ive tracti ve
po we r If
yo upull away shar ply, thetractiv epo we r
ma ybe toohigh andtheve hicles couldbe
damag ed. #
Pull away slo wlyand smoo thly. No
teson reco vering ave hicl eth at isstuc k *
NO
TEDama geasare sult ofreco vering a
ve hicle that isstuc k If
th etractiv epo we ris toohigh, theve hicles
could bedamag ed. #
Pull theve hicle that isstuc kout as
st ra ight andevenlyas possi ble du ring
re co very. Obser
vethefo llo wing during reco very to avo id
damag eto your vehicle:
R Ifth edr iven wheels gettr ap pe don loose or
mu ddygr ou nd, reco verth eve hicle withth e
utm ostcar e, Br
eak down assis tance 37
9

Esp
ecially so ifth eve hicle isladen.
R Neveratt em pttoreco vera ve hicle that is
st uc kwit hatrailer attached.
R Pull outtheve hicle that isstuc kbac kwards,
if poss ible, usingth etra cksit made beforeit
became stuc k. To
wing vehicl eaw ay intheeve ntofmalf unc‐
tions No
teson towing away intheev ent ofma l‐
fun ctions
* NO
TEDama gedue toinc orrect att ach‐
ment anduseof old nuts The
vehicle andcomponent sof theve hicle
can bedamag eddue toinc orrect att achment
and useof old nuts. #
Ifyo ure mo vethepr opeller shaft,place
th eM1 0nuts ontheM8 bolts as
spacer sand secur eth em withM8 nuts. #
Alw aysuse newself-loc kingnuts when
ins talling thepr opeller shafts. Obser
vetheno teson towing away
( / pag e37 7).
% Forfur ther information ,con sult anaut hor‐
ized Mercedes- BenzCenter.
To wing away intheev ent ofma lfun ctions
To wing away intheev ent ofdama getothe
engine, transm ission orelectr ics #
Shif tth etra nsmiss iontoposition 005C.
To wing away intheev ent oftransf ercase
da ma ge #
Remo vethepr opeller shaftsbetween the
axle sand thetransf ercase.
To wing away intheev ent offront axle dam‐
ag e #
Remo vethepr opeller shaftbe tween there ar
axle andthetransf ercase. #
Tow aw ay theve hicle withara ised front axle.
To wing away intheev ent ofrear axle dam‐
ag e #
Remo vethepr opeller shaftbe tween thefront
axle andthetransf ercase. #
Tow aw ay theve hicle withara ised rear axle
and withwheel roller sunder thefront axle. Loading
theve hicl efo rtr ans port #
Obser vetheno teson towing away
( / pag e37 7). #
Con nect theto w bar totheto wing eyein
or der toload theve hicle. #
Shif tth eaut omatic transmiss iontoposition
005C.
% The automatic transm ission maybe locked
in posit ion005Dintheeve ntofdama getothe
electr ics.Toshif tto 005C ,pr ov ide theon-
boar delectr icalsystem withpo we r
( / pag e37 5). #
Load theve hicle ontoth etra nspor ter. #
Shif tth eaut omatic transmiss iontoposition
005D. #
Use theelectr icpar king brak eto secur eth e
ve hicle agains tro lling away. #
Onlysecur eth eve hicle bythewheels. 380
Breakdo wnassis tance

#
Mak esur eth at thefront and rear axle scom e
to rest on thesame transpor tatio nve hicle.
* NO
TEDama getothedr ivet ra in due to
inc orrect pos itioning #
Donotpos ition theve hicle abovethe
connecti onpointofthetranspor tve hi‐
cle. Po
sition oftowing eyes To
wing eyes 1 areatt ached tothefront and
re ar oftheve hicle. To
w- star ting theve hicl e(eme rgency engine
st ar t) *
NO
TEDama getotheaut omatic trans‐
mission duetotow star tin g The
automat ictransm issionma ybe damag ed
in thepr ocess oftow star tin gve hicles with
aut omatic transmission. #
Vehicles withaut omatic transmission
mus tno tbe tow star ted. #
Donotto w- star tth eve hicle. Elec
trical fuses No
teson electr icalfuses &
WARNIN GRisk ofacci dent andinjury
due tooverloaded lines
If yo uman ipulat eor bridg eafa ulty fuse orif
yo ure place itwit hafuse withahigher
am per age, theelectr icline could beove rloa‐
ded.
This could result inafire . Br
ea kdo wnassista nce 38
1

#
Alw aysre place faulty fuseswit hspec i‐
fi ed newfuses containin gth ecor rect
am per age. *
NO
TEDama gedue toinc orrect fus es Electr
icalcom pone ntsorsystems maybe
damag edbyinc orrect fus es, ortheir func ‐
tion ality maybe signif icantlyim pair ed. #
Onlyuse fuses that have been approved
by Mer cedes-Ben zand whic hha ve the
cor rect fus era ting . Blo
wn fuse smu stbe replaced withfuses ofthe
same rating ,wh ich yo ucan recogni zeby the
colo rand fusera ting .The fuse rating sand fur‐
th er information tobe obser vedcan befound in
th efuse assignmen tdiagr am.
Fu se assignment diagram: onthefuse boxin
th ere ar passe nger com partment (/ page38 3). *
NO
TEDama geormalfunct ionscaused
by mois ture Mois
turema ycause damagetotheelectr ical
sy stem orcause itto malfu nction. #
When thefuse boxis open, makesur e
th at no mois turecan enterthefuse
bo x. #
When closing thefuse box,mak esur e
th at theseal ofthelid isposition edcor‐
re ctly onthefuse box. If
th ene wlyinser tedfuse alsoblows,ha ve the
cau setrace dand rectif ied at aqu alif ied spec ial‐
is two rkshop.
Ensur eth efo llo wing beforere placing afuse:
R The vehicle issecur edagains tro lling away.
R Allelectr icalconsu mersar esw itched off.
R The igniti onissw itched off.
The electr icalfu ses arelocat ed invarious fuse
bo xes:
R Fuse boxin theengine compartmen ton the
lef t-hand side(/page382) R
Fuse boxon theright-h andside ofthecoc k‐
pit (/ page383)
R Fuse boxin there ar passe nger com partment
(/ page38 3) Open
ingand closing thefus ebo xin the
engine compartmen t Re
quiremen ts:
R Adr yclo thand asc rewdr iver areav ailable.
Obse rveth eno teson electr icalfuses
(/ page38 1).
Opening &
WARNIN GRisk ofinju ryfrom using the
winds hieldwiper swhile theengine hood
is open
When theengine hoodisopen andthewind‐
shield wipersar ese tin mo tion ,yo ucan be
tr apped bythewiper linkage. #
Alw aysswitc hof fth ewindshield wipers
and ignition beforeopening theengine
hood. 382
Breakdo wnassis tance