2021 MERCEDES-BENZ CLS engine oil

Engine
oil Displa
ymes sages
Possible causes/conseq uencesand0050 0050
Solutions
00B3 Check Engine OilLevel
(Add 1quart) *T
heengine oilleve lhas dropped totheminimum leve l.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hins ufficie ntengi neoil. #
Whe nne xt refuel ing, add 1.1 US qt(1l)of engine oil(/ page26 7).
No teson engine oil(/ page333).
00B3
Engine OilRedu ceOil Level *T
heengine oilleve lis toohigh.
* NO
TEEngi nedama gecau sed bydriving withexc ess engine oil #
Avoid long journeys wit hex cess engineoil. #
Consul ta qu alif ied spec ialistwo rkshop immediat elyand have theengine oilleve lre duced.
00B3 En gine OilLevel LowStop
Vehicle TurnEngine Off *T
heengine oilleve lis toolow.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hins ufficie ntengi neoil. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions.Do notcontinu edr ivi ng. Disp
lay mess ages and warning/ indic ator lam ps 385

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Switc hof fth eengine. #
Add1.1 US qt(1l)of engine oil(/ page26 7). #
Che cktheengine oilleve l.
No teson engine oil(/ page333).
00B3
Engine OilPressure Stop
Switch OffEngine *T
heoilpressur eis toolow.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntoil press ure #
Avoid driving withinsuf ficie ntoil press ure. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions.Do notcontinu edr ivi ng. #
Consul ta qu alif ied spec ialistwo rkshop.
00B3 Engine OilLevel Cannot Be
Measured *T
heelectr icalconn ection totheoil leve lsen sor has been interru pte dor theoil leve lsen sor isfaulty . #
Con sult aqu alif ied spec ialistwo rkshop. 386
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

Ac
tiv eSte ering Assis t.............................1 78
Ac tivati ng/d eactiv ating ........... ............180
Ac tiveEmerg encyStop Assis t.............1 80
Ac tiveLa ne Chang eAssi st<0011001100110011001100110011001100110011001100110011001100110011
001100110011> 181
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>178
Sy stem limits ....................................... 178
Ac tiv eTr af fic Jam Assis t
Ac tivati ng/d eactiv ating ........... ............178
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>177
Ad aptiv ecr uise contr ol
see ActiveDis tance AssistDIS TRONI C
Ad aptiv eHighb eamAssist
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>117
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 118
Ad diti ves.................................................. 333
En gine oil............................................ 333
Fu el ..................................................... 333
Ad diti ves(engine oil)
see Additiv es
Ad diti ves(fuel)
see Fuel
ADS PLUS dam ping system
see AIR BO DY CONTR OL Af
ter-sales service center
see ASSYSTPL US
Air bag
Re duced protect ion ...............................4 3
AIR BODY CONT ROL................................ 196
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 197
Sus pens ion <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 196
Air cond itioning menu
Callin gup ........................................ .... 128
Air distribut ion
Se tting ............................................ .....1 27
Se tting (MBU Xmul time diasy stem) ..... 129
Air freshen ersystem
see Perfume atomiz er
Air inle t
see Air-water duct
Air pressu re
see Tire pressur e
Air suspension
see AIRBODY CONTR OL
Air vents ................................................... 132
Ad jus ting (front) ............. .....................132
Ad jus ting (rea r) ............. .......................132 Air
vents
see Airvents
Ai r-condi tioningsystem
see Climat econ trol
Air -recir cula tion mode............................ 130
Air -water duct .......................................... 269
Ke eping free ........................................2 69
Airb ag....... ..................................................41
Ac tivati on ........... ...................................36
Fr ont airbag (driver ,fr ont passeng er)..... 41
Ins tallation locations .............................. 41
Knee airbag............................................ 41
Ov ervie w ................................................ 41
PA SSENGER AIRBAGind icat orlam p.....4 6
Pr otect ion ..............................................4 2
Sid eairba g<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 41
Wi ndo wcur tain airbag ...........................4 1
Air flow
Se tting .................................................1 27
Alar m
see Panic alar m
Al ar m system
see ATA(anti-t heftal ar m system) 402
Index

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

App
lying orreleasing manuall y............ 159
Emerg encybraki ng ............ ..................159
Re leasing automat ically.................. .....1 59
Ele ctroni cSt abil ityProg ram
see ESP®
(Electr onicStabilit yPr og ram)
Emer gency
Fir st-ai dkit (softsided) ....................... 277
Ov ervie wof thehelp functions...... ........ 16
Re flect ive saf etyve st <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 276
Re mo ving thewa rning triang le............ 276
Se tting upthewa rning triang le...........2 77
Emer gency braking ................................. 159
Emer gency braking
see BAS(Br akeAssi stSystem)
Emer gency engine star t....... .................. 292
Emer gency key
Loc king adoor ....................................... 70
Un loc kin gadoor ...................................7 0
Emer gency oper ation mode
St artin gth eve hicle ............................. 135
Emer gency release
Tr unk lid(from inside) .................... ........ 76 Emer
gency spar ewheel .........................3 25
No tes .................................................. 325
Emer gency Tensioning Devices
Ac tivati on ........... ...................................36
En gine
ECO star t/ stop funct ion.................. ....1 41
Engi nenum ber............. ....................... 329
St artin g(eme rgency operation
mode) .................................................. 135
St artin g(R emo teOnline) ............... ...... 136
St artin g(sta rt/s topbutt on) ............ .....1 34
St artin gassis tance <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .....287
Swi tching off(s ta rt/s topbutt on) .... .... 154
Engine data
Dis playing ...................................... ...... 146
Engine number ........................................ 329
Engine oil.................................................2 67
Ad ditiv es........................................ .....3 33
Ca paci ty....... ................................... .... 334
Che cking theoil leve lusing theon-
boar dcom puter .............................. ..... 266
MB- Freig abe orMB- Appr oval .......... .....3 34
Qua lity ....... .......................................... 334
To pping up...........................................2 67 EQ
boos t
Operating safety .................................... 23
ESC (Elect ronic Stabil ityContr ol)
see ESP®
(Electr onicStabilit yPr og ram)
ESP ®
Cr osswi ndAssis t..... ............................ 165
ESP ®
(Electr onicStabil ityProg ram) ...... 163
Ac tivati ng/d eactiv ating ........... ............165
Fu nctio n/no tes ................................... 163
Ext erior light ing
see Ligh ts
Ext erior light ing(car e)............................ 272
Ext erior mir rors <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 123, 124
Anti-g lare mode (automatic) ................1 24
Au tomatic mirrorfo lding function ........ 125
Fo lding in/out .....................................1 23
Oper ating thememor yfunc tion ..........1 00
Pa rking posit ion...................................1 24
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 123 F
Fa tig ue detection
see ATTENTION ASSIST Inde
x41
3

Mer
cede s-Benz emergency callsys‐
te m ........... ........... ......................................251
Au tomatic emerg encycall............... .... 252
Inf ormation .......................................... 251
Inf ormation ondat atransf er............... 253
Manua lemer gency call<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 253
Ov ervie w <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>252
Mer cedes -Ben zLi nk
see Sma rtphone integratio n
Me ssag e(mu ltifun ction displa y)
se eDis play messa ge
Messag ememor y...... .............................. 340
Mir rors
see Exterior mir rors
Mobi lephone
Wi reless chargin g.................................1 11
Mobi lephone
see Smar tphone integr ation
see Telephon e
Model series
see Vehicle identif ication plate
MOExt ended tires .................................... 278 Multifunc
tiondispla y
Ov ervie wof thedispla ys<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 219
Multifunc tionsteer ing wheel
Ov ervie wof butt ons .............................2 17
Multifunc tionsteer ing wheel
see Steer ing wheel
Mult imedia system
Collision detection (parked vehicle) ..... 160
Multimedia system
see Display(mult imedia system)
see MBUX Interior Assis tant (mu lti‐
med iasystem)
see MBUX multimedia system
see Touc hpad N
Na vig ation
No tes .................................................. 234
Ov ervie w .......................................... ... 235
Sho wing/hiding themenu ............... ....2 34
Switc hingon....... ............................ .... 234
Na vig ation
see Destination entry
see Map see
Route
Ne utr al
Inser ting.............................................. 148
No teson breaking-in ane wvehicl e...... .136 O
Occ upant safety
see Airbag
see Automatic front pass engerfront
airb agshut off
see Pets intheve hicle
see PRE-S AFE®
(anticipat oryoccu‐
pant protect ion)
see PRE-S AFE®
Im pulse Side
see PRE-S AFE®
PL US (antic ipatory
occupant protect ion plus)
see Restra int system
see Seat belt
Oil see Engine oil
On-boar dcom puter................................. 217
Dis play ing theser vice duedate........... 263
Head-up Displaymenu ........................ 220
Multifunc tiondispla y............................2 19 Inde
x41
9

Oper
ating ............ ................................. 217
Ov ervie wof menus .............................. 217
On-boar ddiagnos ticsinterface
see Diag nostics con nection
Online services
Dat ast or ag e ............ .............................. 32
Open-sour cesof tware .............................. 34
Opening thetrunk lidusing your foot
HANDS-FREE ACCES S.................... .......7 4
Oper ating fluids
Ad ditiv es(fuel) .................................... 333
Br ak efluid ...................................... .....3 34
Coo lant (engi ne)....... ........................... 335
Engine oil....... .....................................333
Fu el(gasoline) .....................................3 32
No tes .................. ................................. 331
Re frig er ant (airconditio ningsystem) ...336
Wi ndsh ield wa sher fluid .................. .... 335
Ope ratin gsaf ety
48 Von-boa rdelectr icalsystem ............ 23
Dec laration ofcon form ity (wir eless
ve hicle component s)........................ ..... 25
EQ boos t............................................... 23
Inf ormation ............................................ 23 Oper
ating system
see On-bo ardcom puter
Oper ator' sMan ual
Ve hicle equipment ........................... ...... 21
Oper ator's Manua l(digital) ....................... 18
Op timiz edacceler ation........................... 137
Ac tivati ng ........... ................................. .137
Ov erhead controlpanel
Ov ervie w .......................................... ...... 12 P
Pa int code ................................................ 329
Pa intw ork(cleaning instructions) .......... 271
Pa nel heating
Se tting ............................................. ...... 95
Pa nic alar m................................................ 65
Ac tivati ng/d eactiv ating ........... ..............65
Pa rk pos ition
Inser ting<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> .............148
Sel ecting automatical ly<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 148
Pa rking
see Elec tric par kingbr ak e Pa
rking aid
see Parking AssistPA RK TRONI C
Pa rking Assis tPA RK TRONI C<0011001100110011001100110011001100110011001100110011001100110011
00110011> 203
Ac tivati ng ........... ................................. 207
Ad jus ting warning tones <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 208
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>203
Sid eim pa ct protect ion ........................ 206
Switc hingoff....................................... 207
Sy stem limit ations ...............................2 03
Pa rking assis tance systems
see ActivePa rking Assist
Pa rking brak e
see Elec tric par kingbr ak e
Pa rking foran extended period .............. 160
Pa rking light s...........................................1 14
Pa rking posit ion
Ex terior mir rors <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 124
St or ing theposition ofthefront -
passeng eroutside mirrorusi ng
re ve rsege ar .........................................1 25
PA SSEN GERAIRBAGstatus displa y
see Automatic front pass engerfront
airb agshut off 420
Index