2020 MERCEDES-BENZ S-CLASS COUPE warning

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Á Replace KeyBattery *T
heSmar tKey batt eryis disc harged. #
Replace thebatt ery(/ page63).
Á Key NotDetected (whit e
displa ymessag e) *T
heSmar tKey iscur rentl yund etect ed. #
Chang eth elocation oftheSmar tKey intheve hicle. #
Ifth eSmar tKey isstill no tre cogni zed,place itin themar kedspace forst ar tin gwit hth eSmar tKey
( / pag e14 1).
Á
Ke yNo tDete cted (red dis‐
pl ay messa ge) *T
heSmar tKey canno tbe detected and mayno long erbe intheve hicle.
The Smar tKey isno long erintheve hicle andyouswit choffth eengine:
R Youcan nolongerst ar tth eengine.
R Youcan notcen trally lockth eve hicle. #
Ensur eth at theSmar tKey isin theve hicle.
If th eSmar tKey detection functi onhasa mal functi ondueto ast ro ng radio signal source: #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions. #
PlacetheSmar tKey inthemar kedspace forst ar tin gth eengine withth eSmar tKey (/ pag e14 1). 44
2
Dis play messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Place theKey inthe
Marked SpaceSeeOpera-
tor's Manual *S
mar tKey detection ismal functi oning. #
Chang eth elocation oftheSmar tKey intheve hicle. #
Place theSmar tKey inthemar kedspace forst ar tin gth eengine withth eSmar tKey (/ pag e14 1).
Á
Don't Forget YourKey *A
warning tone also sou nds. Thismes sage reminds youto take your keywit hyo uwhen youlea vetheve hicle. Lights
Displa
ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
0049 Check LeftLow
Beam (exa mp le) *T
hecor responding lightsourceisfaulty . #
Drive on car efull y. #
Con sult aqu alif ied spec ialistwo rkshop immediat ely.
% LED lightbul bs: thedispla ymessag efo rth ecor responding lampappea rsonl ywhen allthelight- emitt ingdiodes
in thelam par efa ulty . Dis
playmes sagesand warning/ indic ator lam ps 44
3

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0049 Malfunct ionSee Opera-
tor’s Manual *T
heexterior lighting ismalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop.
0049 Automatic HeadlampMode
Inoperative *T
helight sensor ismalfunctionin g. #
Consult aqu alif ied spec ialistwo rkshop.
0049 Act ive Headla mpsInopera-
tive *T
heactiv eheadla mpsar emalfunctioning. #
Consult aqu alif ied spec ialistwo rkshop.
0049 Switch OnHeadla mps *Y
ouaredr iving without low- beam headlam ps. #
Turn thelight switc hto the0058 or0058 position . 444
Display messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0049 Switc hOff Lights *Y
ouarelea ving theve hicle andthelights arest ill switc hedon. #
Turn thelight switc hto the0058 position .
0049 Int ell. Light System Inoper-
ative *T
heIntellig entLight System isfaulty .The light ingsystem continues tofunction proper lywit hou tth efunc tionsof
th eInt ellig entLight System. #
Consult aqu alif ied spec ialistwo rkshop.
Adaptive Highbeam Assist
Currently UnavailableSee
Operator's Manual *A
dap tiveHighbeam Assistis temp orarily una vailable.
The system limits have been reac hed (/page12 3). #
Drive on.
Once thecause ofthepr oblem isno long erpresent ,th esy stem will beavailable again. TheAdap tiveHig hbeam
As sist Now Available displaymes sagewill appear .
Adap tiveHig hbeam Assist
In oper ative *A
daptiveHighbeam Assistis malfunc tioning. #
Consult aqu alif ied spec ialistwo rkshop.
Adaptive Highbeam Assist
Camera ViewRestricted
See Operator's Manual *T
hecamer avie wisrestrict ed. Possible causes are:
R Dirton thewindshield inthecamer a'sfield ofvision Displa
ymessag esand warning/ indic ator lam ps 44
5

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
R Hea vyrain, sno wor fog
Dr iving systems anddriving safetysy stems maybe malfunct ioningortemp orarily una vailable.
Onc eth ecause ofthepr oblem isno long erpresent ,th edr iving systems anddriving safetysy stems willbeavailable
ag ain.
If th edispla ymessag edoes notdisappear : #
Pull overand stop theve hicle safely assoon aspossible, paying attention toroad and traf fic condi tions. #
Clea nth ewindshield.
Hazard Warning Flashers
Malfunct ioning *T
hehazar dwa rning lam pswitc his malfun ctionin g. #
Consult aqu alif ied spec ialistwo rkshop. Climat
econtr ol Displa
ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
Air Condition ingMalfunc-
tion SeeOperator' sManual *O
peration oftheclimat econ trol system istemp orarily restrict ed. Airflow and fresh airsuppl yar ese tto aut omat ic
mode . #
Have theclimat econ trol system checkedat aqu alif ied spec ialistwo rkshop.
Let fresh airinto thevehi-
cle interior. AirCondition-
ing Malf. VisitWorkshop *T
heclimat econt rolsy stem ismalfunct ioning. 44
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Dis play messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions &
WARNIN GRisk ofinju ryand acciden tdue toan insufficie ntsupply offresh air
If th eclimat econ trol system ismalfunct ioning,carbon dioxide leve ls ma yinc rease intheve hicle interior .
Br eat hing incarbon dioxide maycause dizziness. #
Open thewindo wto ensur eth at ther eis asuf ficie ntsupply offresh air. #
Open thewindo wto ensur ean adeq uatesuppl yof fresh air. #
Consult aqu alif ied spec ialistwo rkshop immediat ely. Ve
hicl e Dis
playmessag es
Possible causes/conseq uencesand0050 0050
Solutions
0072 Vehicle ReadytoDrive
Switc hthe Ignit ionOff
Before Exiting *Y
ouarelea ving theve hicle when itis in are ady -to- dr ive st at e. #
When youlea vetheve hicle, switchof fth eignition ,secur eth eve hicle agains tro lling away and taketh eSmar t‐
Ke ywit hyo u. #
Ifyo udo notlea vetheve hicle, switchof fth eelectr icalconsumer s,e.g. theseat heating. Other wise, the12 V
batt eryma ydisc hargeand itwill then be possible tostar tth eve hicle onlywit hth eaid ofasecon dbatt ery
(s ta rting assis tance) . Disp
lay mes sage sand warning/ indic ator lam ps 44
7

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Ù St eering Malfunct ion
Inc reased Physical Effort
See Operator' sManual *T
hepowe rst eer ing assis tance isma lfunctio ning. &
WARNIN GRisk ofan acci dent dueto altered steer ing charact eristic s
If th epo we rassi stanc eof thesteer ing fails par tiall yor com pletely,yo uwill need touse morefo rc eto steer . #
Ifsaf esteer ing ispossible, drive on car efully . #
Visit orconsult aqu alif ied spec ialistwo rkshop immediat ely. #
Ifsaf esteer ing ispossible, drive on car efully . #
Visit orconsult aqu alif ied spec ialistwo rkshop immediat ely.
Ù
Steer ingMalfunction Stop
Imme diate lySee Opera-
tor's Manua l *T
hesteer ing ismalfunct ioning.Steer ing capability issignif icantlyim pair ed. &
WARNIN GRisk ofacci dent ifsteer ing capability isim pair ed
If th esteer ing does notfunc tion asintended, theve hicle's operating safetyis jeopar dized. #
Pull overand stop theve hicle safely assoon aspossible, paying attention toroad and traf fic condi tions.
Do notcontinu edr ivi ng und eranycir cums tances. #
Consu ltaqu alif ied spec ialistwo rkshop. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions.Do notcontinu edr ivi ng und eranycir‐
cums tances. #
Consu ltaqu alif ied spec ialistwo rkshop. 44
8
Dis play messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Act ive Hood Malfunct ion
See Operator' sManual *T
heactiv ehood (pedes trian protect ion) ismalfunct ioningorinoper ativeaf te rha ving alread ybeen trigg ered. #
Consu ltaqu alif ied spec ialistwo rkshop.
0051 *A
tle as tone door isop en. #
Close alldo ors.
0083 *T
hehood isopen. &
WARNIN GRisk ofacci dent ifth eengine hoodisunlatc hedwhile driving
An unloc kedengin ehood mayopen upwhen theve hicle isin mo tion andblockyo ur vie w. #
Neverunla tchth eengine hoodwhile driving. #
Beforeev erytrip, ensur eth at theengine hoodislatc hed. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions. #
Close thehood.
0084 *T
hetrunk lidisopen. &
DANG ER Risk ofexhaus tga spoisoning
Combus tionengines emitpoisonous exhaus tga ses suchas carbon monoxide.Exhaus tga ses can enterthe
ve hicle interior ifth etrunk lidisopen when theengine isrunning ,esp ecially ifth eve hicle isin mo tion. Displa
ymessag esand warning/ indic ator lam ps 44
9