engine MERCEDES-BENZ S CLASS 2022 Repair Manual

usin
gth ejum per cable. Startwit hth edonor
ve hicle firs t. #
Startth eengine ofyour ow nve hicle. #
Letth eengines runfo rse veralmin utes. #
Beforedisco nnect ing thejum per cables,
switc hon anelectr icalconsumer inyour ow n
ve hicle, e.g.there ar wind owheat eror the
light ing.
When star tin gassis tance hasfinis hed : #
First,re mo vethejum per cable from the
gr ou nd point ofyour ow nve hicle andthe
neg ative term inal ofthedonor battery, then
re mo vethejum per cable from thepositiv e
con tacts ofboth vehicles. Alwaysst ar twit h
yo ur ow nve hicle firs t. #
Close protect ive co ver2 ofposi tivecont act
3 and close cover1.
Fu rther information canbeobt ained ataqu ali‐
fi ed specialis two rkshop. Char
ging the12 Vbatt ery #
Connect thepositiv econ tacts oftheve hicle
and thech arge rwit hth ech argin gcable .
St artwit hth eve hicle firs t. #
Connect theneg ativecon tact of thech arge r
and grou nd point 4 ontheve hicle withth e
ch argin gcable .St artwit hth ech arge rfirs t. #
Startth ech argin gpr oce ss.
When thech argin gpr oce ssiscom plete: #
Remo vethech argin gcable from groun d
poin t4 ontheve hicle andtheneg ativecon ‐
ta ct of thech arge rfirs tand then from the
positiv econ tacts ontheve hicle andcharge r.
Alw aysst ar twit hth eve hicle firs t. #
Close protect ive co ver2 ofposi tivecont act
3 and close cover1. Re
plac ingthe 12Vbatt ery #
Obs erve theno teson the12 Vbatt ery
(/ page349).
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.
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)or alith ‐
ium-io nbatt ery. Fu llve hicle functionality is
onl yguar anteed withan AGMbatt eryor lith‐
ium-ion battery. Fo rsaf etyre ason s,
Mer cedes-Ben zre comme ndsthat youon ly
use batteries whic hha ve been tested and
appr ovedfo ryo 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. 35
4
Breakdo wnassis tance

To
wing theve hicl ewith both axle son the
gr ound #
Obser vetheno teson theper mitt edtowing
me thods (/page355). #
Mak esur eth at thebatt eryis con nect edand
ch arge d.
When thebatt eryis disc harged, thefo llo wing
act ions cannotbe per form ed:
R The engine cannotbe star ted
R The electr icpar king brak ecann otbe
re leased orapplied
R The automat ictransmissio ncan notbe shif‐
te dto position 005Cor005D
% Ifth eaut omatic transmiss ioncann otbe shif‐
te dto position 005Corthedr iver's displa yin
th eins trument clusterdoes notsho wan y‐
th ing, have theve hicle transpor ted
( / pag e35 7). Atowing vehicle withlifting
eq uipment isrequ ired forve hicle transpor ta‐
tio 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 distan ceof30 miles(50 km)
mus tno tbe exc eeded. &
WARNIN GRisk ofacci dent whento wing
a ve hicle whichis toohea vy
If th eve hicle tobe 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 orrollo ver. #
Beforeto w- star tin gor towing away,
ch eckif th eve hicle tobe tow- star tedor to
we daw ay exc eeds theper missible
gr oss mass. If
ave hicle mustbe tow- star tedor towe daw ay,
its weight mustno texc eed theper missible gross
mass oftheto wing vehicle. #
Information ontheper missible gross mass of
th eve hicle canbefound ontheve hicle iden‐
tif ication plate(/ page48 4). #
Donotopen thedr iver's door orfront
passeng erdoor ;th eaut omatic transmiss ion
will other wise automatically shiftto position
005D. #
Installth eto wing eye(/ page360). #
Fasten theto wing devic e.
* NO
TEDama gedue toinc orrect connec‐
tion oftheto w bar #
Onlyconnect theto w rope ortow bar to
th eto wing eyes. #
Deact ivat eth eaut omatic locking mecha‐
nism . 356
Breakdo wnassis tance

#
Donotacti vate theHOLD function. #
Deact ivat eth eto w- aw ay alar m
(/ page10 1). #
Deactiv ateAc tiveBr ak eAssi st
( / pag e236). #
Shif tth eaut omatic transmiss 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 The ignit ionisswitc hedoff.
R The brak esy stem orpowe rst eer ing sys‐
te m ismalfu nctioning.
R The ener gysupp lyor theon- boar delectr i‐
cal system ismalfunct ioning.
When your vehicle istowe daw ay,signif i‐
cant 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 beforeto 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. Lo
adi ng the vehicl efo rtr ans port Re
quiremen ts:
R The vehicle isstatio nary.
R The engine isswitc hedoff.
R The driver displa yis in theinitial stat ewit h
no men usopen (/page27 2).Tr ans portis
also possiblewithawa rning mess agevisible.
R The 12Vbatt eryis ch arge d. #
Ifnec essar y,se tth esy stem languag e
(/ page298). #
Obser vetheno teson towing away
( / pag e356). #
Connec tth eto wing devic eto theto wing eye
in order toload theve hicle. #
Switc hon thepo we rsupp ly(/ pag e18 1). #
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 e353).
* NO
TEPossible damag eto theve hicle
when loading orunloading When
loading orunloading, theve hicle must
be raised totrans portleve l.
If th etranspor tse ttings areno tsho wnorthe
Vehicle notready forload ingdispl aymes‐
sag eis sho wn, theve hicle mayno tbe loaded
or unloaded. Br
eakdo wnassis tance 35
7

#
Ifre qu ired, raise theve hicle totrans ‐
po rtleve lag ain. #
Ave hicle that can notbe raised totrans ‐
po rtleve lma yno tbe loaded orunloa‐
ded using ara mp .Co nsu ltaqu alif ied
spec ialistwo rkshop. &
WARNIN GRisk ofacci dent dueto act i‐
va tedtra nspor tle ve l
When youuse trans portle ve l,dr ivin gand
dr ivin gsaf etysy stems have onl ylimit edavail‐
abilit yand thevie wfrom theve hicle islimi‐
te d. Dr
iving safetyis se verely restrict ed and ther e
is arisk ofan accident! #
Donotuse transpor tle ve lin nor mal
ro ad operation . #
Onlyact ivat eand usetrans portle ve l
when noton public roads. #
Ensur eth at no per son sor obs tacle sar e
loca tedin thear ea sur round ingthe
ve hicle. Ra
ising theve hicl eto trans portle ve l #
Press theG buttonforat lea stfive sec‐
onds. #
Immediat elypr ess and hold the0076 button
fo rat lea stone second.
The Switch vehicle onfor transpor tlevel dis‐
pla ymessag eappear s. #
Startth eengine (/page18 2).
Th etrans portsettin gsaredispla yed. #
Swipe down wardtoselect Transport level
and press 0076.
The vehicle israised andtheVehicle rising
displa ymessag eis sho wnfor5 seconds. The ra
ising proces scan lastup to60 seconds
and canbecancele dwit hth eG button. #
When raising ,do notswitc hof fth eengine.
While theve hicle isbeing raised, youcan
man euveratamax imum speedof 25 mph
(40 km/ h). #
Waitto load untiltranspo rtleve lhas been
re ac hed andtheTranspor tlevel status is
sho wn.
% Ifth eve hicle israised totrans portleve l,th e
tr ans portsettin gswill cont inue tobe sho wn
eve naf te ra re star t.Oper ationof thedr iver
displa yis mean while restrict ed. 358
Brea kdo wnassista nce

When
theve hicle isat transpor tle ve l,it is low‐
er ed again inthefo llo wing situat ions:
R When driven faster than 25 mph(4 0km/h).
R The 12Vbatt eryis disc harg ed. The
vehicle isadjus tedto theheight ofthelas t
activ eleve l.
Tr anspo rting theve hicl e #
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. #
Swi tchof fth eengine andthepo we rsupp ly. #
Onlysecur eth eve hicle bythewheels.
4MA TICvehicl es #
Mak esur eth at thefront and rear axle scom e
to rest on thesame transpor tatio nve hicle.
* NO
TEDama getothedr ive train due to
inc orrect pos itioning oftheve hicle #
Donotposition theve hicle abovethe
connecti onpointofthetranspor tve hi‐
cle. Un
loading theve hicl e #
Mak esur eth at theve hicle israised totrans ‐
po rtleve lbef oreunloadin g(/ page35 7).
Lo we ring theve hicl eaf te runl oad ing #
Swi tchon thepo we rsupp ly. #
Startth eengine. #
Swipe upwardin thetranspor tse ttings to
select Standard levelandpress 0076.
The vehicle issetto theheight ofthelas t
activ eleve land theVehicle lowering display
messag eis sho wn. #
Afterth eve hicle hasbeen lowe red, press the
G buttonforat lea sttwose cond s.
The trans portsettin gsareclosed. Br
eakdo wnassis tance 35
9

To
wing eyesto rage location To
wing eye1 islocat edunder thetrunk floor .
Depending ontheve hicle equipment, theto wing
ey ema ybe locat edatano ther position inthe
tr unk . In
stalli ng theto wing eye #
Press themar kon cover1 inwa rdsand
re mo ve. #
Screw intheto wing eyecloc kwiseasfaras it
wil lgo and tight en. #
Mak esur eth at cover1 eng ages inthe
bum perwhen youre mo vetheto wing eye. *
NO
TEDama getotheve hicle dueto
inc orrect useof theto wing eyeor tra iler
hitc h When
ato wing eyeor tra iler hitchis used to
re co vera ve hicle, theve hicle maybe dam‐
ag ed inthepr ocess. #
Onlyuse theto wing eyeor trailer hitch
to tow aw ay ortow star tth eve hicle. #
Donotuse theto wing eyeor tra iler
hitc hto tow theve hicle during reco very. To
w- star ting theve hicl e(eme rgency engine
st ar t) *
NO
TEDama getotheaut omatic trans‐
mission duetotow- star tin g To
w- star tin gth eve hicle candamag eth e
aut omat ictransm ission. #
Donotto w- star tth eve hicle. #
Donotto w- star tth eve hicle. 360
Breakdo wnassis tance

Electr
icalfuses 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 . #
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 zedbythe
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: intheve hicle docu‐
ment wallet.
* 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 inthefo llo wing
fuse boxes:
R Fuse boxin theengine compartmen ton the
dr iver's side (/page36 1)
R Fuse boxon thedr iver's side ofthecoc kpit
(/ page363)
R Fuse boxin thefront passeng erfoot we ll
(/ page36 4)
R Fuse boxin thetrunk ontheright-h andside
of theve hicle, when viewe din thedir ect ion
of tra vel(/ page36 4) Opening
andclosing thefus ebo xin the
engine compartmen t Re
quirement s:
R Obser vetheno teson electr icalfuses
(/ page36 1).
R Have thefo llo wing tools readil yav ailable:
- Adr yclo th Br
ea kdo wnassista nce 36
1

-
Ascr ewdriver wit han appr opriatehead
Opening
% Depen dingontheve hicle equipment, access
to thefuse boxma ybe limit ed.Mer cedes-
Benz recomme ndsconsu lting aqu alif ied
spec ialistwo rkshop, e.g.anaut hor ized
Mer cedes-Benz Center. &
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. #
Release thero tary catc hesoncover1 and
pul lth eco verup and out. #
Remo veanyex istin gmois turefrom thefuse
bo xusing adr yclo th. #
Dep endingontheve hicle equipment, ther e
ma ybe anelectr icalcom ponen t2 onthe
fuse boxlid .If pr esent, unscrewscrew 3
and putthecom ponen tto theside without
discon nectingtheelectr icalconnect ion. #
Ifpr esent ,re lease hoses 4from there tain‐
ing clips onthefuse boxand vehicle body. 362
Breakdo wnassis tance

#
Ifpr esent, release hoses 5from there tain‐
ing clips intheengine compartmen tand
ve hicle body. #
Unscr ew screws6 and fold out bar7. #
Unscr ew screws8 and remo vefuse boxlid
9 totheside.
Closing #
Chec kwhe ther theseal isposition edcor‐
re ctly inlid 9. #
Placelid 9 onthefuse boxand tight en
scr ews8. #
Foldbac kbar 7and tightenscr ews6. #
Ifpr esent, engagehoses 5inthere tainin g
clips intheengine compartmen tand vehicle
body . #
Ifpr esent, engagehoses 4inthere tainin g
clips onthefuse boxand vehicle body. #
Ifpr esent, insertelectr icalcom ponent 2
int oth eholder onthefuse boxlid and
tight enscrews3. #
Inser tco ver1 and engageth ero tary
catc hes. Ope
ningand clos ing the fuse boxin the
co ckpit Re
quirement s:
R Obser vetheno teson electr icalfuses
(/ page36 1). Br
eakdo wnassis tance 36
3

Pr
epar ingtheve hicl efo ra wh eelch ang e Re
quirement s:
R The vehicle isno ton aslope.
R The vehicle ison solid, non-slipper yand leve l
gr ou nd .
R There qu ired tire-c hang eto ol kit isavailable.
% Ifyo ur vehicle isno teq uipped withth etir e-
ch ang eto ol kit, consult aqu alif ied spec ialist
wo rkshop tofind outab ou tsu itab letools. #
Appl yth eelectr icpar king brak emanually . #
Movethefront wheels tothest ra ight -ahead
posit ion. #
Shif tth etra nsmiss iontoposition 005D. #
Vehicl eswith leve lcontr olsystem: Setth e
nor malve hicle leve l(/ page24 9). #
Swi tchof fth eengine. #
Mak esur eth at theengine cannotbe star ted. #
Place choc ks orother suitable items under
th efront and rear ofthewheel that isdiago‐
nall yoppos ite th ewheel youwish tochang e. #
Remo vethehub capifneces sary
(/ page388). #
Raise theve hicle (/page388). Re
mo ving and inst alli ng thewheel trim/h ub
cap s Re
quirement s:
R The vehicle isprepar edfora whee lch ang e
(/ page38 8).
Alum inum hubcap #
Toremo ve:po sitio nsoc ket2 from thetir e-
ch ang eto ol kit onhub cap1. #
Position wheel wrenc h3 onsoc ket2. #
Usingwheelwr enc h3, turnhu bcap 1
cou nter-clo ckwise andremo veit. #
Toins tall: follo wtheins truction sabo vein
re ve rseor der .
% Specif iedtight ening torq ue: 18lb-f t
(25 Nm). Ra
ising theve hicl ewhe nch angi ngawhe el Re
quirement s:
R Ther ear eno per sons intheve hicle.
R The vehicle hasbeen prepar edfora whee l
ch ang e(/ page38 8).
R The hub caps have been remo ved
( / pag e388).
Im por tant noteson using thejac k:
R Use onlya ve hicle-specif icjac kth at has
been approved byMer cedes-Ben zto raise
th eve hicle.
R The jackis onl ydesigned forra ising and
holdin gth eve hicle fora shor ttime whilea 388
Wheel sand tires