2020 MERCEDES-BENZ S-CLASS engine

Batt
ery Di
spl aymes sages
Possible causes/conseq uencesand0050 0050
Solutions
003D 12 VB attery See Opera-
tor's Manual *T
heengine isoffa nd thec har geleve list oo low. #
Swi tcho ffelectr icalconsu mersthat aren otrequ ired.
To charge theb attery: #
Lea vethee ngine running foraf ewmin utes, ordrivea ne xtende ddista nc e.
*I fthe messag eappear swhile thee ngine isrunning ,this indicat esan on-boar delect rical system malfunct ion. #
Consult aqualif iedspec ialistworks hop.
003D See Operator's Manual *T
hebatt eryi sn otbeing charge d.
* NO
TEPossible engine damageify ou cont inue driving #
Donotc ontin ue drivin gunder anyc ircum stanc es. #
Con sult aqualif iedspec ialistworks hop. #
Pull overand stop thev ehicle safely and switc hoffthee ngine, paying attent ion toroad and trafficc ondi tions . #
Consul taq ualifiedspec ialistworks hop. Displa
ymessag esand warning/ indic ator lam ps 533

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
003D St op Vehicle SeeOpera-
tor's Manual *T
hebatt eryi sn olong erbeing charge da nd thec har geleve list oo low.
* NO
TEPossible engine damageify ou cont inue driving #
Donotc ontin ue drivin gunder anyc ircum stanc es. #
Con sult aqualif iedspec ialistworks hop. #
Stop thev ehicle immediat elyinaccor dance withthe traf ficc ondi tions .Don otcontinu edrivi ng und eranyc ir‐
cums tances. #
Swi tcho ffthee ngine. #
Consult aqualif iedspec ialistworks hop.
003D Stop Vehicle LeaveEngine
Running *T
hebatt eryc har geleve list oo low. #
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. #
Ifth ed isplaym essaged oes notd isa ppear: consult aqualif iedspec ialistworks hop. 53
4
Displa ymessag esand warning/ indic ator lam ps

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
Tires Overheated *A
tlea st one tireisov erheating. Theaffect ed tires ared ispl ay ed inred. At temp eratur esclose tothel imit value, the
tir es ared ispl ay ed inyello w. #
Drivem ores lowl y.
Decre aseS peed *A
tlea st one tireisov erheating. Theaffect ed tires ared ispl ay ed inred. At temp eratur esclose tothel imit value, the
tir es ared ispl ay ed inyello w. &
WARNIN GRisk ofan acci dent from drivi ng with ove rheat edtires
Ov erheat edtires ma yburst,p artic ular lyat high speeds. #
Reduce speed sothat thet ires cool down. #
Reduce speed sothat thet ires cool down. Engine
oil Displa
ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
00B3 Check Engine OilAtNext
Refueling *T
heengine oilleve lh as dropped tothem inimum leve l.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hinsufficie ntengi neoil. 538
Displaym essages and warning/ indic ator lam ps

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions #
Chec kthe engine oilleve lw hen next refuel ing.
Ad de ngin eoil(/ page412).
No teso ne ngine oil(/ page484).
00B3
Check Engine OilLevel
(Add 1quart) *D
ispla ymessageo nlyf or cer taine ngines:
The engineoilleve lhas dropped tothem inimum leve l.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hinsufficie ntengi neoil. #
Whe nnextrefueling, add1.1U Sqt(1l )o fengine oil(/ page412).
No teso ne ngine oil(/ page484).
00B3
Engine OilRedu ceOil Level *D
ispla ymessageo nlyf or cer tain engin es:
The engin eoille ve list oo high.
* NO
TEEngi nedama gecau sed bydriving withe xcess engine oil #
Avoid long journeys wit he xcess engi neoil. #
Consul taq ualifiedspec ialistworks hop immediat elya nd have thee ngine oilleve lreduced. Displa
ymessag esand warning/ indic ator lam ps 539

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
00B3 En gine OilLevel LowStop
Vehicle TurnEngine Off *D
ispla ymessageo nlyf or cer tain engin es:
The engin eoille ve list oo low.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hinsufficie ntengi neoil. #
Stop thev ehicle immediat elyinaccor dance withthe traf ficc ondi tions .Don otcontinu edrivi ng und eranyc ir‐
cums tances. #
Swi tcho ffthee ngine. #
Add1 .1US qt(1l)of engine oil(/ page412). #
Che ckthee ngine oilleve l.
No teso ne ngine oil(/ page484).
00B3
Engine OilPressure Stop
Switch OffEngine *D
ispla ymessageo nlyf or cer taine ngines:
The oilp ress urei st oo low.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntoil press ure #
Avoid driving withinsuf ficie ntoil press ure. #
Stop thev ehicle immediat elyinaccor dance withthe traf ficc ondi tions .Don otcontinu edrivi ng und eranyc ir‐
cums tances. 54
0
Dis play messa gesa nd warning/ indic ator lam ps

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions #
Consult aqualif iedspec ialistworks hop.
00B3 Engine OilLevel Cannot Be
Measured *T
heelectr icalconn ection totheo ille ve ls en sor has been interru pte dorthe oilleve ls en sor isfaulty . #
Con sult aqualif iedspec ialistworks hop. Wa
rning and indicat orlam ps Ov
ervie wo findicat orand warning lam ps Som
esystems will perform aself-tes tw hen the
ignit ionisswitc hedon.Som eindic ator and
wa rning lam psma ybrief ly light uporflash. This
beha viorisno n-cr itical. Thes eind icat orand
wa rning lam psindic ateam alfunction onlyifthe y
light uporflash afte rt he engine hasbeen star‐
te do rduring ajour ney. Ins
trum ent Disp lay De
pen dingo nthe displa ysetting, thep osition s
of thei ndicat orlam pson theI nstrument Display
ma ydiffe rf romt heexam ple shown. Pr
og ressiv esetting If
yo us ele ctthep rogressiv edispla ysetting, the
position softhe indicat orlam pson theI nstru‐
ment Displa ywillch ang e. Dis
playm essag esand warning/ indic ator lam ps 54
1

Engine
Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
ÿ Coolant warning lam p The
redc oolant warning lam pislitwhile thee ngine isrunning .
*P oss ible cau ses:
R The temp eratur esensor ismalfunct ioning
R Coolant leve ltoo low
R The airsuppl ytot he radiat orisobs truct ed
R The radiat orfani sfaulty
If th er ei sa na dditional warning tone, thec oolant temp eratur ehasexceed edthem aximum permissible temp eratur e. &
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. #
Stop thev ehicle immediat elyinaccor dance withthe traf ficc ondi tions andswitcho ffthee ngine. Donotc ontinue
dr iving under anyc ircums tances. #
Notethem essag eson them ultifunc tiondispla y.
If th ec oolant temp eratur edispla yisa tthe lowe rend ofthet em per atur escale: Displa
ymessag esand warning/ indic ator lam ps 54
5

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions #
Consult aqualif iedspec ialistworks hop.
or #
Exit thev ehicle andkeep asafed ista nce from itunti lthe engine hascooled down. #
Chec kthe coolant leve l(/ pag e413). #
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 the
cool anttemp eratur edispla yremain sbelo wt he reda rea.
00B9 En gine diagnosis warning
lam p The
yello wC heckEngine warning lam pislitwhile thee ngine isrunning .
*A malfunctio nhasoccu rred inthee ngine, thee xhau stsystem orthef uel system.
The emission limitvalues maybee xceed edand thee ngine maybeine mer gency mod e.
In som estates, leg alrequ iremen tsstipulat ethat youm ustimm ediat elyc onsul taq ualifiedspec ialistworks hop as
soon asthey ello wC heckEngine warning lam plight sup. #
Have thev ehicle checkeda ssoon aspossible ataq ualif iedspec ialistworks hop.
003D Electr icalmalfunction warn‐
ing lam p The
rede lect rical mal functi onwarning lam pislit.
*T her eisam alfunction inthee lectr ics. #
Obser vethem essag eson them ultifunc tiondispla y. 54
6
Dis play messa gesa nd warning/ indic ator lam ps