2020 MERCEDES-BENZ CLS maintenance

yo
ur vehicle aswellas on possible vehi‐
cle damag e. QR
code forre scue card
The QRcode issecur edinthefuel filler flap and
on theopposit eside ontheB-pillar .In theeve nt
of an acci dent, rescue services canusetheQR
code toquickl yfind theappr opriatere scue card
fo ryo ur vehicle. Thecurrent rescue cardcon‐
ta ins themos tim por tant informa tionab ou tyo ur
ve hicle inacom pact form ,e.g. thero utin gof the
electr iclines.
Fu rther information canbeobt ained athttp: //
www .mercedes-benz .de/qr-code. Data
storage Electr
oniccontr olunit s Ele
ctro nic contr oluni tsareins talled inyour vehi‐
cle. Some ofthese areneces saryfo rth esaf e
oper ation ofyour vehicle, whilesome assistyo u
when drivin g(dr iver assis tance systems). In
addition, your vehicle prov ides comfort and ent
ertainm ent func tions,whic har ealso made
possible byelectr oniccontrol units.
Elect ronic contr oluni tscont ain da ta memor ies
whic hcan temp orarily orper manent lystor e
te ch nica linf orma tionab ou tth eve hicle's operat‐
ing stat e, com ponent loads, maintenance
re qu iremen tsand tech nica leve nts orma lfunc‐
tio ns.
In gener al,th is inf ormatio ndocum entsth est at e
of acom ponent part,amodul e,asy stem orthe
sur round ingssuc has:
R Operatin gst atus ofsystem com ponen ts(e.g.
fi ll le ve ls, batt eryst atus ,tir epr essur e)
R Status messagescon cerningth eve hicle or
its individua lcom ponent s(e.g. number of
wheel revo lution s/speed, longitudin alacc el‐
er ation ,lat eral acc eler ation ,displa yof fas‐
te ned seatbe lts)
R Malfunctio nsorfaults inim por tant system
com ponen ts(e.g. lights, brak es)
R Information oneve nts lead ing tovehicle
damag e R
System react ionsin spec ialdrivin gsit uatio ns
(e. g.airbag deployment,int erve ntio nof sta‐
bilit ycon trol systems)
R Ambien tcon ditions (e.g.temp eratur e,rain
sen sor)
In addition toprov iding theactual control unit
func tion,th is dat aassis tsthemanuf acturerin
de tecting andrectify ingmal functi onsand opti‐
mizi ngvehicle functions. Themajority ofthis
dat ais temp orar yand isonl ypr ocessed inthe
ve hicle itself. Onlya small portion ofthedat ais
st or ed intheeve ntor fault mem ory.
When your vehicle isser viced, tech nica lda ta
fr om theve hicle canberead out byser vice net‐
wo rkem ployees (e.g. workshops, manufactur‐
er s) or third par ties (e.g. breakdo wnservice s).
Ser vice sinc lude repair services, maintenanc e
pr ocesses ,wa rrant yclaim sand qualit yassur ‐
anc emeas ures, forex am ple. Theread out isper‐
fo rm ed via theleg ally prescr ibed portfo rth e
diagnos ticsconnection intheve hicle. The
re spectiv eser vice networklocations orthird
par ties collec t,pr oces sand usethedat a.The y
documen tte ch nica lst atus esoftheve hicle, Gener
alno tes 29

St
arting theve hicl e(R emo teOnline) &
WARNIN GRisk ofcrus hing orentr ap‐
ment dueto unin tentio nalstar tin gof the
engine
Limbs couldbecrushed ortra pped ifth e
engine isstar tedunint entionall ydur ing
ser vice ormaint enanc ewo rk. #
Alw ayssecur eth eengine agains tunin‐
te ntio nalstar tin gbef orecar rying out
maint enanceorrepair work. Re
quirement s:
R Park position 005Disselect ed.
R The anti- theftalar msystem isno tactiv ated.
R The panic alarmisno tactiv ated.
R The hazar dwa rning light sar eswitc hedoff.
R The hood isclos ed.
R The door sar eclos edand locked.
R The windo wsand slidin gsun roof areclosed. #
Startth eve hicle using thesmar tphon e.
Af tereve ryvehicle star t,th eengine runs for
te nminu tes.
Yo ucan carryout amaximum oftwoconsec u‐
tiv est ar tin gatt em pts. The vehicle mustbe star‐
te donc ewit hth eSmar tKey bef oretrying to
st ar tth eve hicle again withth esmar tphon e.you
can stop theve hicle again atanytime.
% Further information canbefound inthe
smar tphone app.
Secur ingtheengine agains tst ar ting before
car rying out maintenance orrepair work: #
Swi tchon thehazar dwa rning light s.
or #
Unloc kth edoor s.
or #
Open aside windo wor thesliding sunroof. Br
eaking-in notes Mer
cede s-AMG vehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yfa ilto rec‐
ogni zedangers. To
preser vetheengine during thefirs t
1, 000 miles(1 ,500 km):
R Drive at varying road spee dsand engine
spee ds.
R Drive th eve hicle indrive pr ogr am A
or ;.
R Shif tto thene xt highes tge ar attheve ry lat‐
es twhen theneedle reac hes thelas tth ird
bef oreth ere dar ea intheta ch ome ter.
R Donotshi ftdo wn age ar man uallyin order to
br ak e.
R Avoid overstrai ning theve hicle, e.g.driving at
full thro ttle .
R Donotde press theaccelera torpeda lpas t
th epr essur epoint (kickdo wn).
R Onlyincr ease theengine speedgradually and
accelera tetheve hicle tofull spee daf te r
1, 000 miles(1 ,500 km).
This also app lieswhe nth eengine orpar tsof the
dr ivet ra in have been replaced. 14
6
Driving and parking

ASS
YSTPL US service interva ldisp lay Fu
nction oftheASS YSTPL US service interva l
displ ay The
ASSYSTPL US service interva ldispla yon the
Ins trument Displaypr ov ides informatio non the
re maini ngtime ordis tance before thene xt
ser vice duedate.
Yo ucan hide this ser vice displa yusing thebac k
butt ononthelef t-hand sideofthesteer ing
wheel.
Depen dingonhowtheve hicle isused, the
ASS YSTPL US service interva ldispla yma y
shor tenth eser vice interva l,e.g. inthefo llo wing
cases :
R Mainl yshor t-dis tance drivi ng
R Whe nth eengine isoftenleft idling forlong
per iods
R Intheeve ntoffreq uent col dstar tphase s
Mer cedes-Ben zre comme ndsavoiding such
oper ating condit ions.
Yo ucan obtain informat ionconcernin gth eser v‐
icing ofyour vehicle from aqu alif ied spec ialist wo
rkshop, e.g.anaut hor ized Mercedes-Benz
Cent er. Displa
yingtheser vice dueda te On-boar
dcom puter:
4 Service 5
ASS YST PLUS
The next ser vice duedateis displa yed. #
Toexitth edisp lay: press thebac kbutt on
on thelef t-hand sideofthesteer ing wheel.
Be sureto also payatt ent ion tothefo llo wing
re lat ed topic:
R Oper ating theon- boar dcom puter
(/ page232). Inf
ormat iononregular maintenance work *
NO
TEPrema turewe arthro ugh failur eto
obser veser vice duedates Ser
vice workwhic his no tcar ried out atthe
ri ght time orincom pletely can lead to
inc reased wearand damag eto theve hicle. #
Alw aysobser vethepr escr ibed service
int erva ls. #
Alw aysha ve thepr escr ibed service
wo rkcar ried out ataqu alif ied spec ialist
wo rkshop. Special
service requ irement s The
prescr ibed service interva lis based onnor ‐
mal opera tionoftheve hicle. Maintenance work
will needto be per form ed mor eof tenif th eve hi‐
cle isoper ated under arduous conditions or
incr eased loads.
The ASSYSTPL US service interva ldispla yis onl y
an aid. Thedriver oftheve hicle bearsre sponsi‐
bility asrega rdsto whe ther maint enanc ewo rk
nee dstobe per form ed mor eof tenth an spec i‐
fi ed based ontheactual operating conditions
and/or loads.
Ex am ples ofarduous operating conditions :
R regular citydriving withfreq uent intermedi‐
at estops
R mainly short-distance drivi ng Ma
intena nce and care35
7

#
Push handle 1ofthehood catchupw ards
and liftth ehood byappr oximat ely15 in
(40 cm). #
Toclose: lowe rth ehood andletit fallfrom a
height ofappr oximat ely8 in (20 cm). #
Ifth ehood canstill be lifte dslightl y,open
th ehood again and close itwit halittle more
fo rc euntil iteng ages cor rectl y. Engine
oil Chec
kingtheengine oilleve lusing theon-
boar dcom puter
Re quirement s
The engin eoil leve lis de term ined during drivin g.
De term inin gth eengine oilleve lcan take up to
30 minut eswit hanor mal driving style and even
long erwit han act ive dr ivin gst yle.
In order torecei veare sult asquickl yas possi‐
ble:
R Warm uptheengine
R Park theve hicle onaleve lsur face
R Lea vetheengine running atidle spe ed
On-bo ardcom puter:
4 Service5
Engine OilLeve l
Yo uwill see oneof thefo llo wing mess ages on
th emultifunc tiondispla y:
R Measuring Engine OilLevel.. .:measur ement
of theoil leve lis no tye tpo ssi ble. #
Repeat there qu estaf te ra maximu mof 30
minut es'driving. R
Engine OilLevel OKand thebar displa yfo r
indic atingth eoil leve lon themultifunc tion
displa yis green and isbe tween "min" and
"max": theoil leve lis cor rect.
R Engine OilLeve lAdd 1.0land thebar displa y
fo rindica tingtheoil leve lon themultifunc ‐
tion displa yis orang eand isbelo w"min": #
Add1.1 US qt(1l)of engine oil.
R Red uce Engine OilLevel andthebar displa y
fo rindica tingtheoil leve lon themultifunc ‐
tion displa yis orang eand isabo ve"max ": #
Drain offan yex cess engineoilthat has been
added. Todo so, con sult aqu alif ied spec ialist
wo rkshop.
R For Engine OilLevel Switch Ignition On: #
Switc hon theignition tocheckth eengine oil
le ve l.
R Engine OilLeve lSyst emInoperat ive:sensor
fa ulty ornotins erted. #
Consult aqu alif ied spec ialistwo rkshop.
R Engine OilLevel System Currently Unavail.: 360
Maintenance andcare

Chec
kingcoolant leve l &
WARNIN GRisk ofburnsfrom hotcom‐
ponent partsintheengine compartmen t
Cer tain com pone ntsin theengine compart‐
ment canbevery hot,e.g. theengine, the
ra diat orand partsof theex haus tsy stem. #
Allo wtheengine tocool down and only
to uc hco mp onent partsdescr ibedin
th efo llo wing. &
WARNIN GDang erofburnswhen open‐
ing thehood
If yo uopen thehood when theengine has
ove rheat edordur ing afire intheengine
com partmen t,yo uco uld come intoco ntact
wit hho tga ses orother escaping operating
fl uids. #
Beforeopen ingthehood, allowthe
engine tocool down. #
Intheeve ntofafire intheengine com‐
par tmen t,ke ep thehood closed and
call thefire ser vice. &
WARNIN GRisk ofscal ding from hot
cool ant
The enginecool ingsystem ispressur ized,
par ticular lywhen theengine iswa rm.If yo u
open thecap, youco uld bescalded byhot
coolant spraying out. #
Letth eengine cooldown beforeopen‐
ing thecap. #
When opening thecap, wearprotect ive
gl ove sand safetygl asses . #
Open thecap slowlyto release pres‐
sur e. #
Park theve hicle onaleve lsur face. #
Checkth ecoolant temp eratur edispla yin the
ins trumen tclus ter.
The coolant temp eratur emus tbe inthebo t‐
to m quarterof thete mp eratur edispla y. #
Slowly turncap 1cou nter-clo ckwise to
re lie ve ove rpressur e. 362
Maintenance andcare

No
teson paint work/ma tte finish paint workcar e Obser
vethefo llo wing informa tion: Cleaning
andcareA voiding paintworkdam age
Pa intw ork R
Insect remains: soakwithinsect remo verand rinse offth e
tr ea tedar eas afte rw ards.
R Birddr oppin gs:soak withwa terand rinse offaf te rw ards.
R Tree resin, oils, fuels andgreases: remo veby rubbing gen‐
tl y wi th aclo thsoak edinpe troleum ether orlight erfluid.
R Coolan tand brak efluid: remo vewit hadam pclo thand
cle an water.
R Tarst ains :use tarre mo ver.
R Wax:usesilicone remo ver. R
Donotatt achsticke rs,fi lms orsimilar materials.
R Remo vedirtimmediat ely, wher epossi ble. 366
Maintenanceand care

Obser
vethefo llo wing informa tion: Cleaning
Avoiding dama getothedecor ative fo il
R Forclea ning, useplenty ofwa terand amild cleaning agent without
add itivesorabr asive subs tances, e.g.a car shampooappr ovedfo r
Mer cedes-Ben z.
R Remo vedirtimmediat ely,wher epossible, whilstavo iding rubbing
to ohar d.Ther eis other wise arisk ofdamagi ngthedecor ativefo il
ir re par ably .
R Ifth er eis dir ton thefinis hor ifth edecor ativefo ilis dull: usethe
Pa int Cleaner recomme ndedandapprove dfo rMer cedes-Benz.
R Insect remains: soakwithinsect remo verand rinse offth etreat ed
ar eas afte rw ards.
R Birddr oppin gs:soak withwa terand rinse offaf te rw ards.
R Toprev ent waterst ains ,dr ya fo il-wr apped vehicle withasof t,
absorbent clothafte reve rycar wash. R
The service life and color ofdecor ativefo ils areim pair edby:
- Sunl ight
- Temp eratur e,e.g. hotair blower
- Weather condition s
- Stone chipping sand dirt
- Chemic alclean ingagent s
- Oilypr oduct s
R Donotuse polish onmatt edecorativ efo il. Po lishin gwill have theef fect
of shi ning thefo il-wrapped surface.
R Donottr ea tmatt eor stru ctur eddeco rativ efo ils wit hwa x.Pe rm anen t
st ains mayocc ur. Sc
ratche s,cor rosiv edeposits, areas affect ed by
cor rosion anddamag ecaused byinc orrect car e
canno tal wa ys be com pletely repair ed.Insuc h
cases, visitaqu alif ied spec ialistwo rkshop.
Yo ucan obtain mor einf ormat iononcar eand
cle anin gpr oduc tsfrom themanuf acturer. In
thecase offoil-wrapped surfaces, optica ldi f‐
fe re nces mayoccu rbe twee nth esur faces that
we renotpr otect edbyadec orativ efo ilaf te r
re mo ving adecor ativefo il. %
Have wo rkor repair sto decor ativefo ils car‐
ri ed out ataqu alif ied spec ialistwo rkshop,
e.g. inan aut hor ized Mercedes-Benz Center. 368
Maintenance andcare