2020 MERCEDES-BENZ S-CLASS engine

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
Á Replace KeyBattery *T
heSmar tKey batt eryi sd ischar ged. #
Replace theb attery( /pag e66).
Á Key NotDetected (whit e
displa ymessag e) *T
heSmar tKey iscur rentl yu ndetect ed. #
Chang ethe location oftheS mar tKey inthev ehicle. #
Ifth eS mar tKey isstill no trecog nized, placeitin them arke ds pace fors tartin gw itht he Smar tKey
( / pag e173).
Á
Ke yN otDete cted (red dis‐
pl ay messa ge) *T
heSmar tKey canno tbed etect edand maynolong erbe inthev ehicle.
The Smar tKey isno long erinthev ehicle andyous wit ch offt he engine:
R Youc an no longers tart thee ngine.
R Youc anno tc entrall yloc kt he vehicle. #
Ensur ethat theS mar tKey isin thev ehicle.
If th eS mar tKey detection functi onhasam alfuncti onduet oas trong radio signal source: #
Stop thev ehicle immediat elyinaccor dance withthe traf ficc ondi tions . #
PlacetheS mar tKey inthem arke ds pace fors tartin gt he engine withthe Smar tKey (/ pag e173). Displ
aymessa gesa nd warning/ indic ator lam ps 49
7

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
Place theKey inthe
Marked SpaceSeeOpera-
tor's Manual *S
mar tKey detection ismal functi oning. #
Chang ethe location oftheS mar tKey inthev ehicle. #
Place theS mar tKey inthem arke ds pace fors tartin gt he engine withthe Smar tKey (/ pag e173).
Á
Don't Forget YourKey *A
warning tone also sou nds. Thism essage reminds yout ot akey our keyw ithy ou when youl eave thev ehicle. Lights
Displa
ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
0049 Check LeftLow
Beam (exa mp le) *T
hecor responding lightsourceisfaulty . #
Driveo ncarefull y. #
Con sult aqualif iedspec ialistworks hop immediat ely.
% LED lightbulbs: thed ispla ymessag efor thec orresponding lampappea rsonl yw hen allthel ight-emitt ingdiodes
in thel am parefaulty . 498
Displaym essag esand warning/ indic ator lam ps

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
Act ive Hood Malfunct ion
See Operator' sManual *T
heactiv ehood (pedes trian protect ion) ismalfunct ioningorinoper ativeafter having already been trigg ered. #
Cons ultaqualif iedspec ialistworks hop.
0051 *A
tlea st one door isop en. #
Close alld oo rs.
0083 *T
hehood isopen. &
WARNIN GRisk ofacci dent ifth ee ngine hoodisunlatc hedwhile driving
An unloc kede ngin ehood mayopen upwhen thev ehicle isin mo tion andblockyour view. #
Neveru nla tcht he engine hoodwhile driving. #
Beforee very trip, ensur ethat thee ngine hoodislatc hed. #
Stop thev ehicle immediat elyinaccor dance withthe traf ficc ondi tions . #
Close theh ood.
0084 *T
hetrunk lidisopen. &
DANG ER Risk ofexhaus tgas poi son ing
Com bustione ngines emitpoisonous exhaus tgases suchascarbon monoxide.Exhaus tgases canenterthe
ve hicle interior ifth et runk lidisopen when thee ngine isrunning ,especi ally ifth ev ehicle isin mo tion. 50
4
Displa ymessag esand warning/ indic ator lam ps

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
ÿ Coolant TooHotStop Vehi-
cle Turn Engine Off *T
hecoolant istooh ot. #
Stop thev ehicle immediat elyinaccor dance withthe traf ficc ondi tions andswitcho ffthee ngine. &
WARNIN GDang erofburnsw hen opening theh ood
If yo uo pen theh ood when thee ngine hasoverheat edordur ing afirei nt he engine compartment, youc ould
co me intoc ontact wit hh otgases orother escaping operating fluids. #
Beforeo pen ingtheh ood, allowthe engine tocool down. #
Inthee vent ofafirei nt he engine compartment, keep theh ood closed andcallthef ires ervice. #
Waitunt ilth ee ngine hascooled down. #
Mak esuret hat thea irsupply tother adiat orisno timp aired. #
Avoiding highloads onthee ngine, drivet ot he near estq ualif iedspec ialistworks hop. Indoing so,ensur ethat
th ec oolant temp eratur edispla yremain sbelo wt he redm arkin g.
ÿ *T
hefanm otorisf aulty . #
Avoiding highloads onthee ngine, drivet ot he near estq ualif iedspec ialistworks hop. Indoing so,ensur ethat
th ec oolant temp eratur edispla yremain sbelo wt he redm arkin g.
To switch engineoff,press
and hold Start/ Stop but-
ton foratleast 3secs. or
press 3times. *Y
ouhave pressed thes tart/s topb utton while driving. #
Information aboutswitchingofft he engine whiledriving (/page173). 50
6
Dis play messa gesa nd warning/ indic ator lam ps

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions #
Chang ethe transmission position. #
Startt he engine.
Only Shift to'P' when Vehi-
cle isStationary *
Pa rk position 005Dcan beeng aged onlyw hen thev ehicle isstatio nary. #
Tostop, depr esstheb rake pedal. #
Shif tthe transmission topar kposition 005Dwhile thev ehicle isstatio nary.
App lyBra ketoShi ftto 'R' *
Youh ave attem pte dtos elect transmission position005E. #
Depr esstheb rake pedal. #
Select transmiss ionposition 005E.
Driver 'sDoor Open &
Transm issionNotinPR isk
of Vehicle RollingAway *
The driver's door isno tfully closed andtransmiss ionposition 005B,005Eorneutr al005C isselect ed. #
Select parkposition 005Dwhen switchingofft he vehicle.
Shift to'P' or'N' toStart
Engin e *
Youh ave attem pte dtos tart thee ngine intransmission position005Bor005E. #
Depr esstheb rake pedal. #
Select parkposition 005Dorneutral 005C. #
Startt he engine. 508
Displa ymessag esand warning/ indic ator lam ps

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions #
Engage par kposition 005D. #
Consult aqualif iedspec ialistworks hop.
Stop Vehicle LeaveEngine
Running WaitTransmission
Cooli ng *T
hetransmission isove rheating. Pullingaway ma ybetem por arilyi mp aired ornotp ossible. #
Stop thev ehicle immediat elyinaccor dance withthe traf ficc ondi tions .Don otcontinu edrivi ng und eranyc ir‐
cums tances. #
Lea vethee ngine running . #
Waitunt ilth ed ispla ymessag edisappear sbefor ep ulling away.
Auxi liar yB atte ryMa lfunc-
tio n *T
heauxilia rybatt eryf or thet ransmiss ionisno long erbeing charge d. #
Consult aqualif iedspec ialistworks hop. #
Untilthen, alwayss elect parkposition 005Dmanually beforey ou switc hoffthee ngine. #
Beforel eaving thev ehicle, applythee lectr icpar king brak e. 51
0
Display messa gesa nd warning/ indic ator lam ps

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions #
Ifth ed ispla ymessag edoes notd isappear ,stopt he vehicle inaccor dance withthe traffic con dition sand restar t
th ee ngine.
Act ive Blind SpotAssist
Inoper ative *A
ctiveBlind Spo tAssistismalfun ctionin g. #
Consult aqualif iedspec ialistworks hop.
Act ive Parking Assistand
PARKTRONIC Inoperative
See Operator's Manual *A
ctiveParking Assista nd Parking AssistP ARK TRON ICarem alfunc tion ing . #
Stop thev ehicle inaccor dance withthe traffic con dition sand restar tt he engine. #
Ifth ed ispla ymessag econtinues tobe displa yed, con sult aqualif iedspec ialistworks hop.
Traffic SignAssist Cur-
rently Unavaila bleSee
Operator's Manual *T
raffic Sign Assisti st em por arilyu navailable. #
Driveo n.
Onc ethe cause ofthep roblem isno long erpresent ,the system will beavailable again.
Traf ficSig nA ssist Inoper a-
tiv e *T
raffic Sign Assisti sm alfun ctionin g. #
Stop thev ehicle inaccor dance withthe traffic con dition sand restar tt he engine. #
Ifth ed ispla ymessag econtinues tobe displa yed, con sult aqualif iedspec ialistworks hop.
Traffic SignAssist Camera
View Restricted SeeOpera-
tor's Manual *T
hecamer aviewi srestrict ed. Possible causes:
R Dirtonthe windshield inthec amer a'sfield ofvision
R Hea vyrain, sno worfog
Dr ivin gs ystems anddriving safetys ystems maybem alfunct ioningortemp orarily una vailable. 52
4
Disp laym essages and warning/ indic ator lam ps

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
Dr iving systems anddriving safetys ystems maybem alfunct ioningortemp orarilyu navailable.
Onc ethe cause ofthep roblem isno long erpresent ,the driving systems anddriving safetys ystems will beavailable
ag ain.
If th ed ispla ymessag edoes notd isappear : #
Stop thev ehicle inaccor dance withthe traffic con dition s. #
Clean allsen sors(/pag e421). #
Restar tt he engine. Mer
cedes meconnect Displa
ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
Mercedes meconn ect
Servic esLimited SeeOper-
ator's Manual *S
ervice limited.
At leas tone ofthem ainfunc tionsofthe Mer cedes meconnect system ismalfunct ioning. #
Obser vethen otes on thed iagnos ticsconnect ion(/ page26). #
Consult aqualif iedspec ialistworks hop.
0053 Inoperative *A
tlea st one ofthem ainfunc tionsofthe Mer cedes meconnect system oroftheS OS emer gency callsyst em is
malfunct ioning. #
Consult aqualif iedspec ialistworks hop. 532
Displa ymessag esand warning/ indic ator lam ps