engine coolant MERCEDES-BENZ CLS-Class 2021 Owner's Manual

Ins
trum ent Disp layove rview 1
Speedo meter
The segment son thespeedome terindica te
th est atus esofthefo llo wing systems: cruise
con trol/limit er/Active Dis tance Assist
DIS TRONI C
2 Inde xpo ints
3 Outside temp eratur e 4
Time
5 Area foradd itional values (exa mp le:tach om‐
et er): tach ome ter/na vigation/EC Odisp lay/
consum ption/ G-me ter/dat e
The fuel supp lywil lbe interru pted toprotect
th eengine whenthere dmar kon theta ch ‐
ome ter(o ve rrev ving rang e) isreac hed.
6 Coolan tte mp eratur edispla y Dur
ing normal oper ation, thecoolant tem‐
per atur edisp lay is per mitt edtorise to
24 8°F (120°C).
Ve hicles with48 Von-boar delectr icalsys‐
te m: POWER andCHARGE displ ay(elect rical
dr ive su ppo rtand recup erati on powe rof the
electr icmo tor)
7 Select eddrive pr ogr am 21
6
Instrument Displayand on-boar dcom puter

#
Turn cap 1cou nter-cloc kwiseand remo ve
it. #
Addengin eoil. #
Replace cap1and turnit cloc kwise untilit
eng ages. #
Chec kth eoil leve lag ain (/ page266 ). Chec
kingthecoolant leve l &
WARNIN GRisk ofburnsfrom hotcom‐
ponent partsintheengine compartmen t
Cer tain com pone ntpar tsintheengine com‐
par tmen tcan bevery hot,e.g. theengine,
th ecooler andpartsof 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
If yo uopen thecap, youco uld bescalded. #
Letth emo torcool down beforeopening
th ecap. #
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 lease overpressur 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, thecoolant isup to
mar kerbar 2.
R Ifth eengine iswa rm,th ecoolant isup to
0.6 in(1.5 cm) over mar kerbar 2. #
Ifnecessar y,add coolant that has been
appr ovedfo rMer cedes-Benz.
% Further information oncoolant
(/ page335) 268
Maintenance andcare

Ha
ve thebr ak efluid regular lyreplaced ata
qu alif ied spec ialistwo rkshop.
Onl yuse abr ak efluid appr ovedby Mer cedes-
Benz accor dingtoMB-F reigabe orMB- Appr oval
33 1.0. Co
olan t No
teson coolant
Obser vetheno teson oper ating fluids
(/ page33 1). &
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 #
Onlyus ecool 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 sfo r
Oper ating Fluids 310.1
- Athttps: //bevo.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.
Pr opor tionofantifr eezeconcen trat ein the
engine cooling system:
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))
Co olant capacity Mode
lC apacity
All mode ls 13.7 US qt
(1 3.0 lite rs) No
teson windshield washer fluid Obser
vetheno teson oper ating fluids
(/ page33 1). Te
ch nica lda ta 335

Engine
Displa
ymes sages
Possible causes/conseq uencesand0050 0050
Solutions
To switch engine off,press
and hold Start/S topbut-
ton foratleast 3secon ds
or press 3times. *Y
ouhave pressed thest ar t/ stop butt onwhile theve hicle isin mo tion. #
Information aboutswitchingoffth eengine whiledriving (/page13 4).
00BD Che ckCoo lant Level See
Opera tor'sManu al *T
hecoolant leve lis toolow.
* NO
TEEngi nedama gedue toinsuf ficie ntcool ant #
Avoid long journeys wit hins ufficie ntcool ant. #
Addcoolant (/page268 ). #
Have theengine cooling system checkedat aqu alif ied spec ialistwo rkshop.
ÿ
Coola ntToo HotStop Vehi-
cle Turn Engine Off *T
hecoolant istooho t. #
Pull overand stop theve hicle safely and switc hof fth eengine, paying attent ion toroad and traffic condi tions. &
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. 352
Display mess ages and warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
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 tobs truct 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.
00B6
Fuel Level Low *T
hefuel suppl yhas dropped intoth ere ser verang e. #
Refuel .
00B6
Ga sCa pLoose *T
hefuel filler cap isno tclos edcor rectly orthefuel system isleaking. #
Close thefuel filler cap. #
Ifth efuel filler cap wasalr eady proper lyclosed :con sult aqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 353

Wa
rning and indicat orlam ps Ov
ervie wof indicat orand warning lam ps Som
esy stems willperform aself -tes twhen the
ignit ionisswitc hedon.Som eindic ator and
wa rning lam psma ybr ief lylight uporflash. This
beha viorisno n-cr itical. Thes eind icat orand
wa rning lam psindic ateamalfun ction onlyif th ey
light uporflash afte rth eengine hasbeen star‐
te dor dur ing ajour ney.
Ins trum ent Disp lay De
pen dingon thedispla yse tting, theposition s
of theindicat orlam pson theIns trument Display
ma ydif ferfr om theex am ple shown. Indi
catorand warning lam ps:
0075 Re
stra int system (/ page388)
00E9 Seat
belt(/page388)
Ù Powe rst eer ing (/ page389)
ÿ Coolanttemp eratur e(/ page390)
00B9 Chec
kEn gine (/page390)
003D Elect
rical mal functi on(/ page 390)
00B6 Re
ser vefuel withfuel filler flap loca‐
tio nind icat or(/ page39 0)
0049 US
A:elec tric par kingbr ak e(red)
(/ page39 3)
0024 Canada:
electric par kingbr ak e(red)
(/ page39 3)
0024 Ele
ctric pa rking brak e(yello w)
(/ page393)
00C6 US
A:Recup erati ve Brak eSy stem
(/ page393)
004D Canada:
brak es (yello w)
(/ page393)
0027 US
A:brak es (red) (/ page393)
004D Canada:
brak es (red) (/ page393) L
Distance warning (/ page396)
ä AIR BO DY CONTR OL(/ page396)
ä DYNA MIC BODY CONTR OL
(/ page396)
0025 ABS
(/page39 7)
00E5 ESP®
(/ page39 7)
00BB ESP®
OFF (/page39 7)
0077 Ti
re pressur emonit oring system
(/ page399)
0060 Pa
rking lam ps(/ page11 4)
0058 Lo
wbe am (/ page11 4)
0057 Hi
gh beam (/ pag e11 5)
003E003D Tu
rn signal lights(/page11 5)
005E Re
ar foglight (/page11 4) Displ
aymessa gesand warning/ indic ator lam ps 38
7

Engine
Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
ÿ Coolant warning lam p(red) *T
he redcoolant warning lam pis lit while theengine isrunning .
Po ssible causes:
R The temp eratur esensor ismalfunct ioning
R The coolant leve lis toolow
R The airsuppl yto thera diat orisobs truct ed
R The radiat orfanis faulty
R The engin eco olan tpum pis faulty
If th er eis an additional warning tone, thecoolant temp eratur ehas exceeded themaximum permissible temp eratur e. &
WA RNIN 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. 390
Displa ymessag esand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
If th ecoolant temp eratur edispla yis at thelowe rend ofthete mp eratur escale: #
Consult aqu alif ied spec ialistwo rkshop.
If th ecoolant temp eratur edispla yis at theupper endofthete mp eratur escale: #
Exitth eve hicle andkeep asaf edis tance from itunti lth eengine hascooled down. #
Chec kth ecoolant leve l(/ page268) . #
Mak esur eth at theair supply tothera diat orisno tobs truct 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.
ÿ Coolant warning lam p(yel‐
lo w) *T
he yello wcoolan twa rning lam pis lit while theengine isrunning .
Po ssible causes:
R The temp eratur esensor ismalfunct ioning
R The charge air,tr ans miss ionoilorbat tery cool ingisfaulty #
Avoiding highloads ontheengine, drive to thenear estqu alif ied spec ialistwo rkshop.
00B9
Engine diagnosis warning
lam p *T
he yello wChec kEn gine warning lam pis lit while theengine isrunning .
A ma lfunctio nha soccu rred intheengine, theex haus tsy stem orthefuel system.
The emission limitvalues maybe exc eeded andtheengine 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. Disp
lay mess ages and warning/ indic ator lam ps 39
1

Coolant
(engine)
Capacit y.......................................... .... 335
Chec kleve l.......................................... 268
No tes .................................................. 335
Cool ing
see Clima tecontr ol
Co pyrights
Licen se.................................................. 34
Tr ademar ks<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 34
Co rnering light .........................................1 17
Cr oss Traf fic Aler t.................................... 213
Cr osswind Assist
Fu nctio n/no tes ................................... 165
Cr uise contr ol.......................................... 169
Ac tivati ng ........... ................................. 170
Butt ons <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>......170
Callin gup aspee d...............................1 70
Deactiv ating........................................ 170
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>169
Re quiremen ts:.....................................1 70
Selecti ng....... ................................... ...170
Se tting aspe ed <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 170
St or ing aspeed ................................... 170
Sy stem limit ations ...............................1 69 Cus
tomer Assist ance Center (CAC ).........2 8
Cus tomer Relat ions Depar tment .............2 8 D
Dash board
see Cockpit
Data acquisition
Ve hicle ............................................. ..... 29
Data protection rights
Dat ast or ag e .......................................... 32
Data storage
Dat apr otect ion rights ..................... ...... 32
Elect ronic contr oluni ts <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 29
Onl ine service s<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> ............32
Ve hicle ............................................. ..... 29
Da ytime running lampmode
see Daytime running lights
Da ytime running lights ............................1 18
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 118
Deact ivat ing theala rm (ATA ).................... 84
Deale rship
see Qualified speci alist wo rkshop Dec
laration ofconf ormity
Wi reless vehicle component s................2 5
Decor ative fo il(cleaning instructions) ..272
Def initions (tiresand loading) ................3 13
Des tinat ion entry<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 236
Ent ering aPOI oraddress <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 236
De tectin ginat tentiv eness
see ATTENTION ASSIST
Diagnos ticsconnec tion............................2 5
Digita lOp erator' sMa nua l.........................1 8
Dingh yto wing
see Tow- bar system
DIRECT SELECT leve r............. ..................147
Eng aging drive po sitio n............ ........... 149
Eng aging neu tral ............ ...................... 148
Eng aging park position ........................ 148
Eng aging park position automatic ally .. 148
Eng aging reve rsege ar .........................1 48
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 147
Disp lay(car e)...........................................2 74
Disp lay(MB UXmultim edi asy stem)
Hom escr een .......................................2 23 Inde
x40
7

Disp
lay(m ult imedi asy stem) .................. 224
Operating ............ ................................ 224
Displa y(on-boa rdcom puter)
Dis play son themultifunc tiondispla y... 219
Disp laymes sage...... ...............................3 40
Ca lling up (on-boa rdcom puter) ..... ...... 340
No tes ..................... ............................. 340
Displa ymessag es
00B2 -- -mp h...... ...............................3 63
ç ---mp h.....................................3 63
003D 12VBatt erySee Oper ator's
Manual ................................................ 377
00D7 48VBatt erySee Oper ator's
Manu al....... ......................................... 378
: ActiveHea dlamps Inoperati ve .... 347
é ATTENTION ASSISTInoper ative
... ............ ..............................................3 62
é ATTENTION ASSIST: Take a
Br ea k! <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>........363
: Automatic HeadlampMode
Inoper ative..... ..................................... 347 0027
CheckBr ak eFlui dLe vel.............. 361
0026 CheckBr ak ePa ds See Oper a‐
to r's Manua l...... .................................. 362
00BD CheckCool antLevelSee Oper‐
at or's Manual ...................................... 352
00B3 CheckEn gine OilLevel(A dd 1
qu art) .................................................. 385
: CheckLef tLo wBeam (exa m‐
ple) ...................................................... 346
0077 CheckTire s ................................ 381
00B2 CheckWa sher Fluid .................... 351
ÿ CoolantTooHo tSt op Vehicle
Tu rn Engi neOff............ ........................ 352
00CE Current lyUn available Camera
Vi ew Restrict ed <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> ......369
ç Current lyUn available Radar
Sen sorsDir ty ...................................... 368
0025 Currentl yUna vailable See
Opera tor's Manua l...... ......................... 372 00E5
Currentl yUna vailable See
Opera tor's Manua l..... ..........................3 73
Á Don't Forget Your Key................ 345
00CC Drive Mor eSlo wly .......................3 71
00B3 EngineOilLe velCann otBe
Mea sured <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>..386
00B3 Engine OilLevelLo wStop Vehi‐
cle Turn Engi neOff............ ..................385
00B3 EngineOilPr ess ureSt op
Switc hOf fEngin e................................ 386
00B3 EngineOil Reduce OilLevel........ 385
0075 Front LeftMalfunction Service
Re quired (exa mp le) .............................. 341
00B6 FuelLevelLo w ............................ 353
00B6 GasCap Loose ...........................3 53
0025 Inoper ativeSee Oper ator's
Manu al....... ......................................... 373
00E5 Inoper ativeSee Oper ator's
Manua l..... ............................................ 374 408
Index