2022 MERCEDES-BENZ E CLASS service

ASS
YS ASS
YSTPL T
PL US ser US
service int vice
interv er
val dis pla y al
dis pla y FF
uncti onoft uncti
onofthe ASS YS he
ASSYST PL T
PL US ser US
service int vice
interv er
val dis - al
dis -
pla y pla
y The
ASSYSTPL US service interva ldispla yon the
inst rument displa yinf orms youof thetime ordis-
ta nce remainin gbef oreth ene xt ser vice duedate.
Yo ucan hide this ser vice displa yusing theG
bac kbutt onon theleT-h andside ofthesteer ing
wheel.
Depending onhowtheve hicle isused, the
ASS YSTPL US service interva ldispla yma yshor ten
th eser vice interva l,e.g. inthefo llo wing cases :
R Mainl yshor t-dist ance driving
R When theengine isoTen leTidling forlong
per iods
R Intheev ent offreq uent coldstar tphases
Mer cedes-Benz recommen dsavo iding suchoper -
ating conditions.
Yo ucan obtain information concerningtheser vic-
ing ofyour vehicle from aqu ali/ed special ist
wo rkshop, e.g.an aut hor izedMer cedes- BenzCen -
te r. DisplaDispla
yingt ying
the ser he
ser vice duedate vice
duedate On-boar
dcom puter:
4 Service 5
ASSYST PLUS
The next ser vice duedateis displa yed. #
T T
o e o
exit t xit
the displa y he
displa y: :
pr ess theG backbut-
to non theleT-h andside ofthesteer ing wheel.
Bear inmind thefo llo wing relat ed topic:
R Oper ating theon-boar dcom puter
(/ page225). InfInf
or or
mation onr mation
onregular maint egular
maintenance w enance
wor k or
k *
N NO O
TE TE
Prematur ewe arthro ugh failur eto
obser veser vice duedates Main
tenanc ewo rkwhic his no tcar ried out at
th eright time orinco mplete ly can lead to
incr eased wearand damag eto theve hicle. #
Adher eto thepr escr ibed service inter-
va ls. #
Alwaysha ve thepr escr ibed maint enance
wo rkcar ried out ataqua li/ed specialist
wo rkshop. NNo o
t t
es on special ser es
on special service r vice
req eq
uir uir
emen ts emen
ts The
prescr ibed service interva lis based onnor -
mal oper ation oftheve hicle. Have themaint e-
nance workcar ried out mor eoTen than prescr i-
bed ifoper atingcond itions aredi1cu ltor the
ve hicle issubj ecttoincr eased stress.
The ASSYSTPL US service interva ldispla yis onl y
an aid. Thedriver oftheve hicle bearsre sponsi bil-
ity asrega rdsto whe ther maint enance work
need sto be per form ed mor eoTen than speci/ed
based ontheactual operating conditions and/or
loads.
Ex am ples ofarduous operating conditions:
R Regula rcity driving withfreq uent intermedi ate
st ops
R Mainl ysh ort-dist ance driving
R Freq uent operation inmount ainous terrain or
on poor road sur faces 274274
Main
tenanc eand care

R
When theengine isoTen leTidling forlong
per iods
R Oper ation inpar ticular lydust ycondition s
and/or ifair -recir culation modeisfreq uentl y
used
In these orsimilar operating conditions, have the
int erior air/lter,air /lter,engine oiland oil/lter,
fo rex am ple, chang edmor efreq uen tly. The tires
must becheckedmor efreq uentl yif th eve hicle is
oper ated und erincr eased loads. Further informa-
tion canbeobt aine dat aqu ali/ed special istwo rk-
shop. Bat
t Bat
ter er
ydiscon nectionper y
discon nectionperiods iods
The
ASSYST PLUS service interva ldispla ycan cal-
culat eth eser vice duedateonl ywhen thebatt ery
is connect ed. #
Displa yand note down theser vice duedate
on theinst rument displa ybef oredisconne ct-
ing thebatt ery(/ page274). Engine
com Engine
compar par
tment tment
Opening
andclosing t Opening
andclosing the hood he
hood &
W W
ARNIN G ARNIN
GRisk ofaccident duetodriving
wit hth ehood unlocked
The hood mayope nand blockyour vie w. #
Neverre lease thehood when driving. #
Beforeev erytrip, ensur eth at thehood is
loc ked. &
W W
ARNIN G ARNIN
GRisk ofaccident andinjury
when openingand closin gth ehood
The hood maysuddenl ydr op intoth eend
position.
Ther eis arisk ofinjuryfo ran yone inthe
hood's rang eof mo vement. #
Donotopen orclose thehood ifth er eis
a per son inthehood's rang eof mo ve-
ment. &
W W
ARNIN G ARNIN
GRisk ofbur nswhen openin gth e
hood
If yo uopen thehood intheev ent ofan ove r-
heat edeng ineor/rein theengine compart-
ment, thefo llo wing situations mayoccur :
R Youma ycome intocont actwithho tga ses.
R Youma ycome intocont actwithot her
escapin gho toper ating0uids. #
Beforeopen ingthehood, allowthe
engine tocool down. #
Intheev ent ofa/r ein theengine com-
par tment, keep thehood closed andcall
th e/r eser vice. &
W W
ARNIN G ARNIN
GRisk ofinjur ydue tomo ving
par ts
Com ponen tsintheengine compartment may
continue torunor star tune xpectedl yev en
when thedr ive sy stem isswitc hedo..
Obser vethefo llo wing ifyo umust open the
hood: Main
tenanc eand care
275 275

#
Slowly slide oildips tick1 intoth eguide tube
to thestop, and pullitout again aTer approx-
imat elyth re eseconds.
R Oilleve lis cor rect: oilleve lis be tween 2
and 3.
R Oilleve lto olow: oil leve lis at 3 orbelo w.
R Oilleve lto ohigh: oilleve lis abo ve2 . #
Ifth eoil leve lis toolow, add 1.1USqt(1liter)
of eng ineoil. #
Ifth eoil leve lis toohigh, drain o.excess
eng ineoil.Consu ltaqu ali/ed special istwo rk-
shop.
Chec Chec
kingt king
the eng ineoillev he
eng ineoillevel usin gt el
usin gthe on- boar d he
on- boar d
com com
put put
er er
R R
eq eq
uir uir
emen ts: emen
ts:
R The enginehas been warmed up.
R The vehicle ispar kedon aleve lsur face.
R The engineisrunning atidle speed.
R The hoodis clo sed .
The engine oilleve lis de term ined during driving.
De term ining theengine oilleve lcan take up to 30
minut eswithanor mal driving styleand even
long erwit han activ edr iving style.
On-boar dcom puter:
4 Service 5
Engine OilLevel
One ofthefo llo wing messa geswill appear onthe
inst rument displa y:
R Measuring EngineOil Level... :meas urement
of theoil leve lis no tye tpos sible. #
Repeat there qu est aTer amaximum of
30 minut es'driving.
R Engine OilLevel OKand thebar displa yfo r
indicating theoil leve lon theinst rument dis-
pla yis green and isbe tween "min" and"max":
th eoil leve lis cor rect.
R Engine OilLeve lAdd 1,1qts. andthebar dis-
pla yfo rindicating theoil leve lon theinst ru-
ment displa yis orang eand isbelo w"min": #
Add1.1 USqt(1l)of engin eoil.
R Red uce Engine OilLevel andthebar displa y
fo rindicating theoil leve lon theinst rument
displa yis orang eand isabo ve"max": #
Drain o.anyex cess engineoilthat has been
added. Todo so, consult aqua li/ed specialist
wo rkshop.
R For Engine OilLeve lSwi tch Ignition On #
Switchon theve hicle tocheckth eengine oil
le ve l.
R Engine OilLevel System Inoperative: Theoil
le ve lsensor isdef ectiv eor notconnect ed. #
Consult aqua li/ed specialist workshop.
R Engine OilLeve lSys tem Currentl yUnav ail. #
Close thehood.
R R
e/lling e/lling
engine oil engine
oil &
W W
ARNIN G ARNIN
GRisk ofbur nsfrom hotcom po-
nent partsintheengine compartment
Cer tain com ponent partsintheengine com-
par tment canbevery hot,e.g .th eengine, the
cooler andpartsof theex haus tsy stem. #
Allow theengine tocool down and only
to uc hcom ponent partsdescr ibedinthe
fo llo wing. 278278
Maint
enance andcare

R
Donotpolish theve hicle andalloywheels.
R Onlyuse carwashes that cor respond tothe
lat est engineer ingstandar ds.
R Donotuse carwash prog ram wit ha/nal hot
wa xtreatme nt.
R Donotuse pain tclean ers, bu1ng orpoli shing
pr oduct s,glo sspreser vers,e.g .wa x.
In theev ent ofpaintw orkdamag e:
R Alwaysha ve paintw orkre pair scar ried out ata
qu ali/ed special istwo rkshop.
R Mak esur eth era dar sensor sfun ction
(/ page170). NNo o
t t
es on cleaning decor es
on cleaning decorativ ativ
ef e
foils oils
Obser
vetheno teson matt e/nish carein the
ch ap ter"No teson pain twork/mat te/nish paint-
wo rkcar e"(/ page283). Theyalso applyto
matt edecor ativefo ils.
Obser vetheno teson clean ingdecor ativefo ils to
avo idvehicle damag e. Clean
ing Clean
ing
R Forcleaning, useplenty ofwa terand amild
cleaning agent without additiv esorabr asiv e
subst ances, e.g.acar sham pooappr ovedfo r
Mer cedes-Be nz.
R Remo vedirtimmediat ely, wher epossibl e,
whils tav oiding rubbing toohar d.Ther eis oth-
er wise arisk ofdamagi ngthedecor ativefo il
ir re par ably.
R Ifth er eis dir ton the/n ish orifth edecor ative
fo ilis dull: usethePa int Cleaner recommen -
ded andappr ovedfo rMer cedes-Benz.
R Insect remains: soakwithinsect remo verand
ri nse o.thetreat edareas aTer wards.
R Birddr oppin gs:soak withwa terand rinse o.
aT erwa rds.
R Toprev ent waterst ains, drya fo il-wr apped
ve hicle withasoT, absorbe ntclo thaTer every
car wash.
Av Av
oiding damag oiding
damag et e
to t o
the decor he
decor ativ ativ
ef e
foil oil
R The service life and color ofdecor ativefo ils
ar eim pair edby:
- Sunl ight -
Temp eratur e,e.g. hotair blower
- Weather cond itions
- Stone chippings anddirt
- Chemica lcleaning agents
- Oilypr oducts
R Donotuse polish onmatt edecor ativefo il.
Po lishing willhave thee.ect ofshining the
fo il-wr apped surface.
R Donottr eat matt eor stru ctur eddecor ative
fo ils wit hwa x.Pe rm anen tst ains mayoccur .
Scr atches, corrosiv edeposi ts,areas a.ect edby
cor rosion anddamag ecaused byincor rect car e
canno talw aysbe com pletely repair ed. Insuc h
cases, visitaqua li/ed specialist workshop.
Yo ucan obtain mor einf ormation oncar eand
cleaning products from themanuf acturer.
In thecase offoil-wr apped surfaces, optical di.er -
ences mayoccur between thesur faces that we re
no tpr otect edbyadecor ativefo ilaTer remo vinga
decor ativefo il. 284284
Maint
enance andcare

NN
o o
t t
es on st es
on star ar
ting assist ting
assist anceandc ance
andchar har
ging t ging
the 12 he
12
V batt V
batt ery er
y All
v All
vehicles ehicles
When chargin gth ebatt eryand during star ting
assist ance, alwaysuse thejum p-st artconnection
point intheengine compartment.
* NO NO
TE TE
Damag eto thebatt eryfrom over-
vo ltag e When
chargin gusin gabatt erych arge rwit hout
a maximum chargin gvo ltag e, thebatt eryor
th eon-boar delectr onics maybe damag ed. #
Onlyuse batterych arge rs wit hamaxi-
mum chargin gvo ltag eof 14.8 V. &
W W
ARNI NG ARNI
NGRisk ofexplosion duetoigniting
hy drog en gas
If th er eis ashor tcir cuit orspar ksstar tto
fo rm when chargin gabatt ery, ther eis adan-
ge rof thehy drog en gasign iting . #
Take car eth at thepositiv ete rm inal ofa
connect edbatt erydoes notcome into
cont actwithve hicle parts. #
Neverplace metalobjects ortools ona
batt ery. #
When connecting anddisconnecting the
batt ery, alw aysobser vetheseq uence of
batt eryte rm inals descr ibed. #
Alwaysta ke car eto conn ectonlybatt ery
te rm inals ofidentical polaritywhen jump
st ar ting ave hicle. #
Duringstar tin gassis tance, itis ess entia l
to obser vetheseq uence describedfor
conn ectingand discon nectingthe
jum per cable s. #
Donotco nnec tor dis connec tth ebat-
te ry term inals while theengine isrun-
ning. &
W W
ARNI NG ARNI
NGRisk ofexplosion duetoamix-
tur eof explosiv ega ses
A mixtu reofexplosiv ega ses can escape from
th ebatt erydur ing chargin gand jump star tin g. #
Fire ,open 0ames, smokingand creati ng
spar ksmust beavo ided. #
Mak esur eth at ther eis su1cien tve ntila -
tion. #
Donotst and overth ebatt ery. &
W W
ARNI NG ARNI
NGRisk ofexplosion from afrozen
batt ery
A disc hargedbatt eryma yfreeze attemp era-
tur es slightl yabo veorbelo wfreezin gpoint.
Dur ingstar ting assist anceorbatt erych argin g,
batt eryga scan bereleased. #
Alwaysallo wabatt eryto thaw before
ch argin git or per form ing star ting assis -
ta nce. If
th eindicat or/warning lampsintheins trument
clust erdo notlight upatlow temp eratur es,itis
ve ry likelyth at thedisc hargedbatt eryhas frozen.
In this case youma yneit her jump-st artth eve hi-
cle nor charge thebatt ery.
The service life of abat tery that has been thawe d
ma ybe dramaticall yshor tened. Thestar ting char- 298298
Br
eakdo wnassis tance

Yo
ur vehicle hasalso been equipp edwith a
TP MS malf unct ionindicat ortoindicat ewhen
th esy stem isno toper ating proper ly.The
TPMS malfunction indicatoris combined with
th elow tirepr essur ete lltale. When thesy stem
de tects amalfu nction, thete lltale will 0ashfo r
appr oximat elyone minut eand then remain
contin uouslyillumin ated. This sequence will
contin ueupon subseq uentvehicle star t-ups as
lon gas themalfunction exists.
When themalfunction indicatorisilluminat ed,
th esy stem mayno tbe able todetect or sign al
lo w tirepr essur eas intende d.TPMS malfu nc-
tion sma yoccur fora va riet yof reasons,
incl udin gth einst allation ofreplacement or
alt ernat etir es orwheels ontheve hicle that
pr eve nttheTPMS from function ingproper ly. The
system checks thetir epr essur eand thetir e
te mp eratur eof thetir es inst alled ontheve hicle by
means ofatir epr essur esensor .
The tirepr essur eand thetir ete mp eratur eappear
in theon-boar dcom puter(/ page314). If
th er eis asubst antial pressur eloss orifth etir e
te mp eratur eis excessiv e,youwill bewarned with
displa ymessag es(/ page398) orthe0077
wa rning lampin theinst rument cluster
(/ page420).
The tirepr essur emonit oring system isonl yan aid.
It is thedr iver's responsi bilityto setth etir epr es-
sur eto there commen dedcold tirepr essur esuit a-
ble forth eoper ating situation.
In most cases ,th etir epr essur emonit oring sys-
te m will automaticall yupdat eth ene wrefere nce
va lues aTer youha ve chang edthetir epr essur e.
Yo ucan, howev er,also updat eth ere fere nce val-
ues byrestar ting thetir epr essur emonit oring sys-
te m manuall y(/ page315).
Sy st Sy
stem limits em
limits
The system maybe impair edorma yno tfun ction
par ticular lyin thefo llo wing situations:
R Incor rect refere nce values weretaught in
R Sudden pressur eloss caused byafo re ign
object penetrating thetir e, forex am ple
R Ther eis amalf unct ioncaused byano ther
ra dio signal source Chec Chec
kingt king
the tir he
tirepr e
pr essur essur
ewit e
wit ht h
the tir he
tirepr e
pr essur e essur
e
monit monit
or or
ing syst ing
system em
R R
eq equir uir
ements: ements:
R The vehicle isswitc hedon.
On- boar dcom puter:
4 Service5
Tires
One ofthefo llo wing displa ysappear s:
R Current tirepr ess ureand tirete mp eratur eof
th eindividual wheels: R
Tire pressure willbe displ ayedafter driving a
few minutes 314314
Wheels
andtires

R
Tire Pressure MonitorActive: thete ac h-in
pr ocess ofthesy stem isno tyet com plete.The
tir epr ess ures arealr eady being monitored. #
Com pareth etir epr essur ewit hth ere com-
mende dtir epr essur efo rth ecur rent ope rating
condi tion(/page312) .Ad ditionall y,obser ve
th eno teson cold tires (/ page310).
% The values displa yedin theon-boar dcom-
put erma yde viat efrom those ofthetir epr es-
sur ega ug eas they referto sea leve l.At high
ele vations, thetir epr essur eva lues indicat ed
by apr essur ega ug ear ehigher than those
sho wnbytheon-boar dcom puter.In this case,
do notre duce thetir epr essur e.
R R
est est
ar ar
ting t ting
the tir he
tirepr e
pr essur essur
emonit e
monit or or
ing syst ing
system em
R R
eq eq
uir uir
ements: ements:
R The recommen dedtirepr essur eis cor rectl y
se tfo rth ere specti veoper ating status onallof
th ewheels (/page310).
Re star tth etir epr essur emonit oring system inthe
fo llo wing situations:
R The tirepr essur ehas chang ed. R
The wheels ortires have been chang edor
ne wly installed.
On-boar dcom puter:
4 Service 5
Tires #
Swipe down wardson Touc hContr olon the
leT-h andside ofthesteer ing wheel.
The Use Curre ntPressure sas New Refer-
ence Valuesmessag eis sho wnintheInstr u-
ment Displa y. #
Torestar t,pr es sTo uc hContr olon theleT-
han dside ofthesteer ing wheel.
The Tire Press. Monitor Restarted messageis
sho wnintheInstr ument Display.
Cur rent wa rning messa gesar edele tedand
th eye llo w0077 warning lampgoes out.
ATer youha ve been driving fora few minut es,
th esy stem checks whe ther thecur rent tire
pr ess ures arewit hin thespeci/ed rang e. The
cur rent tirepr ess ures areth en accep tedas
re fere nce values andmonit ored.
Be sureto also payatt ent ion tothefo llo wing rela-
te dto pic:
R Noteson tirepr essur e(/ page310) TT
ir ir
e pr e
pr essur essur
eloss w e
loss war ar
nin gsy st nin
gsy stem em
FF
unct ionoft unct
ionofthe tir he
tirepr e
pr essur essur
eloss w e
loss war ar
nin gsy st nin
gsy stem em
The tirepr essur eloss warning system warnsth e
dr iver by means ofdispla ymessag eswhen ther e
is ase vere tirepr ess ureloss .
Sy st Sy
stem limits em
limits
The system maybe impair edorma yno tfunction
par ticula rly in thefo llo wing situations:
R Incor rect refere nce values weretaught in
R Sudden pressur eloss caused byafo re ign
object penetrating thetir e, forex am ple
R Aneven pressur eloss onmor eth an one tire
occur s
The system has are str icte dor dela yedfun ction
par ticular lyin thefo llo wing situations:
R Poor ground condition s,e.g. snowor grav el
R Driving withsno wch ains
R When adoptingave ry spor tydrivi ng style wit h
high corner ing speeds orsudden acceleration
R Driving withahigh load Wheels
andtires
315 315

The
tirepr ess urelos swa rning system isonl yan
aid. Itis thedr iver's responsi bilityto setth etir e
pr essur eto there commen dedcold tirepr essur e
suit able forth eoper ating situation andtocheck
it.
Be sureto also obser vethefo llo wing further rela-
te dsubjects:
R Noteson tirepr essur e(/ page310)
R Displ aymessag esabout thetir es
(/ page398)
R R
est est
ar ar
ting t ting
the tir he
tirepr e
pr essur essur
eloss w e
loss war ar
ning syst ning
system em
R R
eq eq
uir uir
ements: ements:
R The recommen dedtirepr essur eis cor rectl y
se tfo rth ere specti veoper ating status onall
wheels.
Re star tth etir epr essur eloss warning system in
th efo llo wing situations:
R The tirepr essur ehas chang ed.
R The wheels ortires have been chang edor
ne wly installed. On-boar
dcom puter:
4 Service 5
Tires #
Swipe down wardson theTo uc hContr olon the
leT-h andside ofthesteer ing wheel.
The Tire Pressure ControlSystem Active
Restart messageis sho wninthedispla y. #
Tobegin restar t,pr es sth eTo uc hContr olon
th eleT-h andside ofthesteer ing wheel.
The Tire Pressure NowOK?messag eis sho wn
in thedispla y. #
Sele ctYes . #
Tocon/r mrestar t,pr es sth eTo uc hContr olon
th eleT-h andside ofthesteer ing wheel.
The Run FlatIndicator Restarted messageis
sho wninthedispla y.
ATe ryo uha ve driven fora few minut es,the
tir epr ess ureloss warning system monit ors
th ese ttir epr essur esofall thetir es.
Be sureto also payatt ent ion tothefo llo wing rela-
te dto pic:
R Noteson tirepr essur e(/ page310) Loadi
ngt Loadi
ngthe v he
vehicle ehicle
NNo o
t t
es on T es
on Tir ir
e and Loadi ngInf e
and Loadi ngInfor or
matio nplacar d matio
nplacar d &
W W
AR NIN G AR
NIN GRisk ofacciden tfr om overloa-
ded tires
Ov erloaded tires ma yove rheat and burstas a
conseq uence. Overloaded tires can also
im pair thesteer ing and handling charact eris-
tics and lead tobrak efa ilur e. #
Obser vetheload rating ofthetir es. #
The load rating must beatleast halfth e
per missible axleload oftheve hicle. #
Neverov erload thetir es by exceedin g
th emaximum load. The
Tire and Loadi ngInformatio nplacar dis on the
B-pi llaron thedr iver's side oftheve hicle. 316316
Wheel
sand tires