engine coolant MERCEDES-BENZ S-CLASS CABRIOLET 2020 Owner's Manual

Ins
trum ent Disp layove rview &
WARNIN GRisk ofacci dent dueto an
ins trumen tdispla ymalf unction
If th eIns trument Displayhas failed ormal‐
func tioned,youma yno tre cogni zefuncti on
re strictions applyi ngtosaf etyre leva nt sys‐
te ms.
The oper ating safetyof your vehicle maybe
im pair ed. #
Drive on car efull y. #
Have theve hicle checkedimmediat ely
at aqu alif ied spec ialistwo rkshop. Mer
cedes‑AMG vehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yfa ilto rec‐
ogni zedangers.
If th eoper ating safetyof your vehicle is
im pair ed,parkth eve hicle safelyas soon aspos‐
sible. Contactaqu alif ied spec ialistwo rkshop. Ins
trument Display 1
Speedome ter
2 Multifunction display
3 Tach ome ter
4 Coolan tte mp eratur ega ug e
5 Fuelleve land fuel filler flap locatio nind ica‐
to r
% This displa yis an exam ple. Other displa ys
ar eposs ibleinstead oftach ome ter3.
The segments inspee dome ter1 indica tethe
sy stem status forth efo llo wing:
R Cruise control (/ page17 2) R
ActiveDis tance AssistDIS TRONI C
(/ page 174)
Ve hicl eswith Traf fic Sign Assis t:De tected
ins tructi ons and traf fic sig ns willap pea ron the
speedome ter(/ page209).
* NO
TEEngi nedama gedue toexc essiv ely
high engine speeds The
engine willbedamag edifyo udr ive wit h
th eengine intheov errevving rang e. #
Donotdr ive wi th theengine intheove r‐
re vving rang e. The
overrev ving rang eis sho wninredon tach ‐
ome ter3. When theov errevving rang eis
re ac hed, thefuel suppl ywill beinterru pted to
pr otect theengine.
Dur ing normal oper ating conditions ,coolant
te mp eratur edispla y4 mayrise to248°F
(1 20 °C). Ins
trument Displayand on-bo ardcom puter 22
1

*
NO
TEEngi nedama gecau sed byan
inc orrect oil filt er ,inc orrect oil oraddi‐
tiv es #
Donotus eengi neoilsor oil filt er s
whic hdo notcor respond tothespecif i‐
cation sex plicitl ypr escr ibed forth e
ser vice interva ls. #
Donotalt er theengine oiloroil filt er in
or der toachie velong erchang eint erva ls
th an presc ribed. #
Donotuse additiv es. #
Followtheins truction sin theser vice
int erva ldispla yre ga rding theoil
ch ang e. *
NO
TEDama gecau sed byrefilling too
muc hengine oil To
omuc hengine oilcan damag eth eengine
or thecat alytic converter . #
Have excess engineoilremo vedat a
qu alif ied spec ialistwo rkshop. %
Depending ontheengine, thecap maybe
ins talled intheengine compartmen tin dif‐
fe re nt locati ons. #
Turn cap 1cou nter-cloc kwiseand remo ve
it. #
Addengin eoil. #
Replace cap1and turnit cloc kwise asfar
as itwill go. #
Chec kth eoil leve lag ain (/ page353 ). Chec
kingthecoolant leve l &
WARNIN GRisk ofburnsfrom hotcom‐
ponent partsintheengine compartmen t
Cer tain com pone ntsin theengine compart‐
ment canbevery hot,e.g. theengine ,th e
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 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. 35
4
Maint enanc eand care

#
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. #
Ifnecessar y,remo vetheco ver. #
Slowly turncap 1cou nter-cloc kwiseto
re lie ve ove rpressur e. #
Continue turning cap1count er-cloc kwise
and remo veit.
The coolan tle ve lis cor rect inthefo llo wing
cases :
R Ifth eengine iscold, uptomar kerbar 2.
R Ifth eengine iswa rm,up to0.6 in(1.5 cm)
ov er mar kerbar 2. #
Ifnecessar y,add coolant that has been
appr ovedby Mer cedes-Ben z.
R Further information oncoolant (/page429) Re
filling thewindsh ieldwasher system &
WARNIN GRisk ofburnsfrom hotcom‐
ponent partsintheengine compartmen t
Cer tain com pone ntsin theengine compart‐
ment canbevery hot,e.g. theengine ,th e
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. Maint
enance andcare355

Ha
ve thebr ak efluid regular lyreplaced ata
qu alif ied spec ialistwo rkshop.
Onl yuse brak efluid appr ovedby Mer cedes-Ben z
accor dingtoMB-F reigabe orMB- Appr oval 33 1.0.
Yo ucan obtain further information onbrak efluid
in thefo llo wing places:
R IntheMer cedes- BenzSpecif ication sfo r
Oper ating Fluids
- Athttps: //bevo.mercedes-b enz.com
- IntheMer cedes- BenzBeVoapp
R Ataqu alif ied spec ialistwo rkshop Cool
ant No
teson coolant
Obser vetheno teson oper ating fluids
(/ page42 5). &
WARNIN G‑Ri sk offire and injuryfrom
ant ifreez e
If ant ifreez ecom esintocon tact with hot
com ponent partsintheengine compart‐
ment ,it ma yignit e. #
Allo wtheengine tocool down before
ad ding anti freeze . #
Makesur eth at no ant ifreez espills out
ne xt to thefiller open ing. #
Thor oughl yclean offan yant ifreeze
fr om com pone ntpar tsbef orest ar tin g
th eve hicle. *
NO
TEDama gecau sed byinc orrect cool ‐
ant #
Onlyad dcool antthat has been pre‐
mix edwithth ere qu ired ant ifreeze pro‐
te ction.
Inf ormati ononcool antisavailable atthefo l‐
lo wing locations:
R IntheMer cedes- BenzSpecif ication for
Oper ating Fluids 310.1
- Athttp: //be vo.mer cedes-b enz.com
- IntheMer cedes- BenzBeVoapp
R Ataqu alif ied spec ialistwo rkshop *
NO
TEOverhea ting athigh outsid ete m‐
per atur es If
an inapp ropr iat ecoolant isused, the
engine cooling system isno tsuf ficie ntlypr o‐
te cted agains tov erheating andcorrosion at
high outside temp eratur es. #
Alw aysuse coolant approvedby
Mer cedes-Ben z. #
Obser vetheins truction sin the
Mer cedes-Ben zSpecif ications forOper‐
ating Fluids310.1. Ha
ve thecoolant regular lyreplaced ataqu alif ied
spec ialistwo rkshop.
The propor tionofcor rosion inhibit or/antifr eeze
concen trat ein theengine cooling system should
be:
R aminimum of50% (antifr eezeprotect ion
do wn toappr oximat ely-3 5°F (-37°C))
R amaxim umof55% (antifreeze protect ion
do wn to-49 °F(-45 °C)) Te
ch nica lda ta 429

Coolant
capacit y Mod
el Capacity
S 56 01 5.0USqt(14.2 l) No
teson windshield washer fluid Obser
vetheno teson oper ating fluids
(/ page42 5). &
WARNIN G‑Ri sk offire and injuryfrom
wind shieldwa sher concen trat e
Wi ndsh ield wa sher concen trat eis highly
fl ammab le.Itcoul dign ite if it com esinto
con tact with hotengine component partsor
th eex haus tsy stem. #
Mak esur eth at no wind shieldwa sher
concen trat espills outnext to thefiller
open ing. *
NO
TEBlocked spr aynozzl escau sed by
mixing windshieldwa sher fluids #
Donotmix MBSum merFitand MBWin‐
te rFit withot her windshield washer flu‐
ids. Do
notuse distilled orde- ionizedwa teras thefill
le ve lsen sor maybe trigg ered erro neou sly.
Re comme ndedwindsh ield wa sher fluid:
R Abo vefreezing point:e.g. MBSummerFi t
R Belo wfreezing point:e.g. MBWinterFi t
Fo rth ecor rect mixi ngratio ,re ferto theinf orma‐
tion ontheantif reeze container .
Mix thewa sher fluid withth ewindshield washer
fl uid allyear round . Re
frig er ant No
teson refrig er ant
Obser vetheno teson oper ating fluids
(/ page42 5). *
NO
TEDama gedue toinc orrect refrig er‐
ant If
anon-appr ovedre frig er ant isuse d,thecli‐
mat econ trol system maybe damag ed. #
Onlyuse there frig er ant R‑134a *
NO
TEDama getotheclimat econ trol
sy stem due toinc orrect refrig er ant com‐
pr essor oil #
Onlyuse refrig er ant com pressor oilthat
has been approvedby Mer cedes-Ben z. #
Donotmix theappr ovedre frig er ant
com pressor oilwithadif fere nt refrig er‐
ant com pressor oil. Wo
rkon theclimat econ trol system maybe car‐
ri ed out onlyby aqu alif ied spec ialistwo rkshop.
All appli cable regulations, aswellas SAEstand‐
ar dJ63 9,mus tbe adher edto.
The information labelontheclimat econ trol sys‐
te m forth ere frig er ant type andthere frig er ant
com pressor oilisloca tedon theinside ofthe
hood. 430
Tech nica lda ta

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
006F Fron tLeft Seat Backrest
Not Lock ed(Exam ple) *T
heseat backres tof thecor responding front seat isno teng aged. #
Foldtheseat backres tbac kuntil iteng ages.
00B2 Check Washer Fluid *T
hewasher fluid leve lin thewa sher fluid reser voirhas dropped belowtheminimum. #
Refill wa sher fluid (/ page35 5). Engine
Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
00BD Check Coolant LevelSee
Operator' sManual *T
hecoolant leve lis toolow.
* NO
TEEngi nedama gedue toinsuf ficie ntcool ant #
Avoid long journeys wit hins ufficie ntcool ant. #
Addcoolant (/page35 4). 44
8
Dis play messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Have theengine cooling system checkedat aqu alif ied spec ialistwo rkshop.
ÿ
Coola ntToo HotStop Vehi-
cle Turn Engine Off *T
hecoolant istooho t. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions andswitchof fth eengine. &
WARNIN GDang erofburnswhen opening thehood
If yo uopen thehood when theengine hasoverheat edordur ing afire intheengine compartmen t,yo uco uld
co me intoco ntact withho tga ses orother escaping operating fluids. #
Beforeopen ingthehood, allowtheengine tocool down. #
Intheeve ntofafire intheengine compartmen t,ke ep thehood closed andcallthefire ser vice. #
Waitunt ilth eengine hascooled down. #
Mak esur eth at theair supply tothera diat orisno tim pair ed. #
Avoiding highloads ontheengine, drive to thenear estqu alif ied spec ialistwo rkshop. Indoing so,ensur eth at
th ecoolant temp eratur edispla yre mains belowthere dmar king.
ÿ *T
hefanmo toris faulty . #
Avoiding highloads ontheengine, drive to thenear estqu alif ied spec ialistwo rkshop. Indoing so,ensur eth at
th ecoolant temp eratur edispla yre mains belowthere dmar king. Displa
ymessag esand warning/ indic ator lam ps 44
9

Engine
Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
ÿ Coolant warning lam p The
redcoolant warning lam pis lit while theengine isrunning .
*P oss ible cau ses:
R The temp eratur esensor ismalfunct ioning
R Coolant leve lto olow
R The airsuppl yto thera diat orisobs truct ed
R The radiat orfanis faulty
If th er eis an additional warning tone, thecoolant temp eratur ehas exceed edthemaximum permissible temp eratur e. &
WARNIN GDang erofburnswhen opening thehood
If yo uopen thehood when theengine hasoverheat edordur ing afire intheengine compartmen t,yo uco uld
co me intoco ntact withho tga ses orother escaping operating fluids. #
Beforeopen ingthehood, allowtheengine tocool down. #
Intheeve ntofafire intheengine compartmen t,ke ep thehood closed andcallthefire ser vice. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions andswitchof fth eengine. Donotcon tinue
dr iving under anycir cums tances. #
Notethemessag eson themultifunc tiondispla y.
If th ecoolant temp eratur edispla yis at thelowe rend ofthete mp eratur escale: Displa
ymessag esand warning/ indic ator lam ps 48
7

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions #
Consult aqu alif ied spec ialistwo rkshop.
or #
Exit theve hicle andkeep asaf edis tance from itunti lth eengine hascooled down. #
Chec kth ecoolant leve l(/ page35 4). #
Mak esur eth at theair supply tothera diat orisno tim pair ed. #
Avoiding highloads ontheengine, drive to thenear estqu alif ied spec ialistwo rkshop. Indoing so,ensur eth at the
cool anttemp eratur edispla yre mains belowthere dar ea.
00B9 En gine diagnosis warning
lam p The
yello wChec kEn gine warning lam pis lit while theengine isrunning .
*A malfunctio nha soccu rred intheengine, theex haus tsy stem orthefuel system.
The emission limitvalues maybe exceed edand theengine maybe inemer gency mod e.
In som est at es, legalrequ iremen tsstipulat eth at youmus timm ediat elyco nsult aqu alif ied spec ialistwo rkshop as
soon astheye llo wChec kEn gine warning lam plight sup. #
Have theve hicle checkedas soon aspossible ataqu alif ied spec ialistwo rkshop.
003D Electr icalmalfunction warn‐
ing lam p The
redelect rical mal functi onwarning lam pis lit.
*T her eis amalfunction intheelectr ics. #
Obser vethemessag eson themultifunc tiondispla y. 488
Displa ymessag esand warning/ indic ator lam ps

Se
tting theclimat est yle ......................1 29
Se tting thefragr ance system ............... 131
Ve ntil ating theve hicle (convenie nce
op eni ng) <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 86
Cl imat est yle
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>129
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 129
Coc kpit ............ .............................................6
Ov ervie w .......................................... .......6
Cof feecup symbol
see ATTENTION ASSIST
COMAND see Multimedia system
COMAND Touc h
Mana gingdevices ................................263
Comb inationswi tch ...... ...........................117
Com pass .......... ........................................ 296
Com puter
see On-boar dcom puter
Conne ctionstatus
Displ aying ...................................... ...... 321
Ov ervie w ...... .................................. ...... 321 Connectivit
y
Swit ching transm ission oftheve hicle
position on/off.............................. ...... 260
Cont acts ................................................... 304
Call ingup ....................................... ..... 305
Dele ting .......................................... ..... 306
Do wnloading (from mobile phone) ...... 305
Im por ting ....................................... ..... 306
Im por ting (ove rview) ...................... .....3 05
Inf ormatio n....... ................................... 304
Maki ngacall ....................................... 306
Na me form at .......................................3 05
Op tions .......................................... ...... 306
St or ing ............................................. ... 306
Contr oller
Oper ating ............................................. 251
Con venience closing featur e....... ............. 86
Co nvenience opening................................ 86
Coolant (engine)
Chec kleve l.......................................... 354
Fillin gcapac ity.................................... 430
No tes .................................................. 429
Cop yrights
License .................................................. 32 Tr
ademar ks<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 32
Co rnering light function .......................... 119
Cr oss Traf fic Aler t...................................2 07
Cr osswind Assist
Fu nctio n/no tes ................................... 166
Cr uise contr ol.......................................... 172
Butt ons <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> .......173
Callin gup aspee d...............................1 73
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 172
Re quiremen ts:.....................................1 73
Sel ecting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 173
Se tting aspe ed <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 173
St or ing aspeed .................................... 173
Swi tching off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 173
Swi tching on<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 173
Sy stem limit ations ...............................1 72
Cup holder................................................ 110
Ins talling/ remo ving (cent erconsole) ...110
Re ar passe nger com partment .............. 111
Cus tomer Assist ance Center (CAC ).........2 7
Cus tomer Relat ions Depar tment .............2 7 Inde
x505