2020 MERCEDES-BENZ SL ROADSTER ECU

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00E9
0051
The redseat beltwar ning lamp lights upafter theengine starts,assoon as
the drive r'sorthe front-passenge rdoor isclosed .
The drive ror front passenger hasnotfastened theirseatbelt.
X Fasten yourseat belt(Y pag e44).
The warning lamp goesout.
There areobjects onthe front-passenge rseat.
X Remo vethe objects fromthefront-passenge rseat andstow them inasecure
pla ce.
The warning lamp goesout. 00E9
0051
The redseat beltwar ning lamp flashes and anintermittent audib lewarni ng
sound s.
The drive ror front passenger hasnotfastened theirseatbelt.The vehicl eis
bei ng drive nfaster than15mph (25km/h )or has brieflybeen drivenfaster
than 15mph (25km/h) .
X Fasten yourseat belt(Y pag e44).
The warning lamp goesoutand theintermittent warningtone cease s.
There areobjects onthe front-passenge rseat. Thevehicl eis bei ng drive nfaster
than 15mph (25km/h )or has brieflybeen drivenfaster than15mph
(25 km/h) .
X Remo vethe objects fromthefront-passenge rseat andstow them inasecure
pla ce.
The warning lamp goesoutand theintermittent warningtone cease s. Indi
cator andwarnin glamps
237On-boardcomput erand displays Z

Safety
systems Warning/
indicator
lamp 00510051
Signal type
Possible causes/co nsequences and0050 0050
Solutions 0027004D
0051
0027 (USAonly), 004D(Canada only):thered brake system warning lampis
lit while theengine isrunning.
A warning tonealsosounds.
G WARNING
The brake boosting effectismalfunction ingand thebraking characterist icsmay
be affected.
There isarisk ofan accident.
X Pull over andstop thevehicle safelyassoon aspossible, payingatten tionto
road andtraffic condition s.Do not cont inue driving underanycircumst ances.
X Secure thevehicle against rollingaway(Ypage 147).
X Consult aquali fiedspecialist workshop.
X Observe theadditional displaymessages inthe multifunct iondisplay . 0027004D
0051
0027 (USAonly)or004D (Canada only):thered brake system warning lamp
is lit while theengine isrunning. Awarning tonealsosounds.
G WARNING
There isnot enough brakefluidinthe brake fluidreservoir.
The braking effectmaybeimpaired.
There isarisk ofan accident.
X Pull over andstop thevehicle safelyassoon aspossible, payingatten tionto
road andtraffic condition s.Do not cont inue driving underanycircumst ances.
X Secure thevehicle against rollingaway(Ypage 147).
X Do not add brake fluid.Adding morewillnotcorrect themalfunction .
X Consult aquali fiedspecialist workshop.
X Observe theadditional displaymessages inthe multifunct iondisplay . 0027
0051
USA only: thered brake system warning lampislit while theengine isrun-
ning. Themultifunct iondisplay alsoshows adisplay message withthe0026
symbol.
The brake pads/linings havereached theirwear limit.
X Visit aquali fiedspecialist workshop. 238
Indicator
andwarning lampsOn-board computerand displays

Engine
Wa
rning/
ind icat or
lam p 00510051
Signa lty pe
Possi blecauses/cons equences and0050 0050
Solu tions 00B9
0051
The yellow CheckEn gin ewarn inglamp lightsup while theeng ineisrun ning.
Ther emay beamalf unction,for exam ple:
R in theeng ineman agem ent
R in thefuel inject ion syst em
R in theexh aust system
R in theign ition syst em
R in thefuel system
The emis sion limit values maybeexc eeded andtheeng inemay beinemer -
gen cymod e.
X Visi ta qualifi edspec ialist workshop immediat ely.
In som est ate s,you must immediat elyvisita qualifi edspec ialist workshop as
soon astheyellow CheckEn gin ewarn inglamp lightsup. This isdue tothelegal
requi rementsin eff ect inthese state s.Ifin doubt ,ch eck whet hersuchlegal reg-
ulati onsapply inthest ate inwhic hyou arecurren tlydriv ing. 00B6
0051
The yellow reservefuel warn inglamp lightsup while theeng ineisrun ning.
The fuel levelhas dropped intoth eres erveran ge.
X Refuel atthenear estgas statio n. 00B6
0051
The yellow reservefuel warn inglamp flashes while theveh icle isin mot ion.
In addit ion,th e00B9 CheckEn gin ewarn inglamp maylight up.
The fuel fillercap isno tclo sed correctlyorthefuel systemisleak ing.
X Chec kth at thefuel fillercap iscor rectlyclosed.
X Ifth efu el filler capisnot corr ectly closed :clo sethefuel fillercap.
X Ifth efu el filler capisclosed :visi ta qualifi edspec ialist workshop. 00AC
0051
The redcoolant warn inglamp lightsup while theeng ineisrun ningand the
coo lant temper aturegage isat thest art ofthesc ale.
The temper aturesen sor forthecoo lant temper aturegage ismalf unctionin g.
The coolant temper atureis no longer bein gmon itored. Thereis arisk ofeng ine
damag eif th ecoo lant temper atureis toohigh .
X Pull overand stop theveh icle safe lyand switchoff theeng ine,payin gatt en-
tio nto road andtraff iccon dition s.Do notcon tinue driv ingunde rany circum -
st anc es.
X Sec ure theveh icle again stroll ing away (Ypage 147).
X Con sult aqualifi edspec ialist workshop. 242
Indica
torand warning lampsOn-boar dcomp uter and displa ys

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00AC
0051
The redcoola ntwar ning lamp comes onwhi lethe engine isrunning.
The coola ntleve lis too low.
If the coola ntleve lis correct, theairflowtothe engine radiator may beblocked
or the electric engineradiator fanmay bedefective .
The coola ntistoo hotand theengine isno longer being coole dsuffi ciently .
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Pul lover andstop thevehicl esafel yand switch offthe engine, paying atten-
tion toroad andtraffic conditions.
X Secure thevehicl eaga inst rolling awa y(Y pag e147).
X Leave thevehicl eand keep asafe dista ncefrom thevehicl euntil theengine
has coole ddow n.
X Che ckthe coola ntleve land add coola nt,obser vingthewarni ngnotes
(Y pag e270) .
X Ifyou have toadd coola ntfrequ ently, havetheengine coolingsystem
checked.
X Make surethattheairsup plytothe engine radiator isnot blocked ,e.g. by
snow, slush orice.
X Do not start theengine againuntil thecoola nttempera turegage isbel ow the
H marking (Ypag e193) .Otherwi se,the engine couldbe dama ged.
X Drive tothe neares tqua lified speci alist worksho p.
X Avoid heavyloa dson the engine asyou doso, e.g. drivinginmountai nouster-
rain andstop-and-go traffic. 00AC
0051
The redcoola ntwar ning lamp comes onwhi lethe engine isrunning.
The coola nttempera turegage hasexceede dthe Hmarking (Ypag e193). The
airfl owtothe engine radiator may beblocked orthe coola ntleve lmay betoo
low .
G WARNING
The engine isnot being coole dsuffi ciently andmay bedama ged.
Do not drive when yourengine isoverhe ated.Thiscancaus esome fluidswhi ch
may have leaked into theengine compartment tocatch fire.
Steam fromtheoverhe atedengine canalsocaus eserio usburns whichcan
occur justbyopeni ngthe hood.
There isarisk ofinjury .
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Pul lover andstop thevehicl esafel yand switch offthe engine, paying atten-
tion toroad andtraffic conditions.
X Secure thevehicl eaga inst rolling awa y(Y pag e147) .
X Leave thevehicl eand keep asafe dista ncefrom thevehicl euntil theengine
has coole ddow n.
X Che ckthe coola ntleve land add coola nt,obser vingthewarni ngnotes
(Y pag e270).
X Ifyou have toadd coola ntfrequ ently, havetheengine coolingsystem
checked. Indi
cator andwarnin glamps
243On-boardcomput erand displays Z

Tire
s Warn
ing/
in dic ato r
lamp 00510051
Sign altype
Po ssible cause s/consequ encesand 0050 0050
So luti ons 0077
0051
The yellow tire pressu remoni torwarning lamp (pres sure loss/m alfu nctio n)is
li t.
The tirepressu remoni torhasde tecte daloss ofpre ssu reinat leas tone ofthe
tire s.
G WA
RNING
Ti re pre ssu res thatar etoo low po se the followi ng hazar ds:
R the yma ybu rst, especially as the load and vehiclesp ee dincr ease
R the yma ywe arexce ssivel yand /or unevenl y,wh ich maygre atlyimp airtire
tra ctio n.
R the drivin gcha racteri stics, aswellas stee ringand braking ,ma ybe gre atly
imp aired
The reisaris kof an acc ident.
X Stop thevehiclewi thou tma king anysudd en stee ringor bra king maneu vers.
Pa yatte ntionto the trafficcond itions asyoudo so.
X Secu rethe vehicleag ainst rolling away (Y page 147 ).
X Ob ser vethe additio nal disp laymes sage sin the multifu nctio ndisp lay.
X Ch eck thetiresand ,if nece ssary,fol low the instructio nsfor afla ttire
(Y page 281 ).
X Ch eck thetire pressu re(Y page 302 ).
X Ifnece ssary,corr ectthe tire pressu re. 0077
0051
The yellow tire pressu remoni torwarning lamp (pres sure loss/m alfu nctio n)
fla she sfor appro xim atelyone minute and thenrem ains lit.
The tirepressu remoni torisfaulty.
G WA
RNING
The system ispo ssi blyuna ble to reco gnizeorreg ister low tire pressu re.
The reisaris kof an acc ident.
X Ob ser vethe additio nal disp laymes sage sin the multifu nctio ndisp lay.
X Visita qu alifi ed speci alistwo rksh opimm ediatel y. In
dic ator andwarninglamps
245On -boar dcomp uter anddi sp lay s Z

Gene
ralnotes
The multime diasystem section inthis Opera -
tor's Manua ldescrib esthe basi cprincipl esfor
opera tion.More information canbefound in
the Digital Operator'sManua l. Important
safetynotes G
WARNING
If you opera teinformation systemsandcom-
municatio nequ ipment integrated inthe
vehicle whendriving, youmay bedistracted
from thetraffic situation. Youcould also
lose control ofthe vehicle .There isarisk of
an accide nt.
Only opera tethis equipment whenthetraffic
situa tionpermits. Ifyou arenot sure that
this ispossi ble,park thevehicle paying
attention totraffic conditions andopera te
the equipment whenthevehicle isstation-
ary .
You must observe thelega lrequ irements for
the country inwhich youarecurrently driving
when operatingthemultime diasystem.
The multime diasystem calculates theroute to
the destinati onwithou ttaking thefollo wing
into account, forexampl e:
R traffic lights
R stop andyieldsigns
R parking orstopping restrictions
R road narrowi ng
R other roadandtraffic rulesand regul ations
The multime diasystem maygiveincorrect nav-
iga tion recommendati onsifthe actual street/
traffic situationdoes notcorrespond withthe
digi talmap's data.
For exampl e:
R adiverted route
R the road layout orthe direction ofaone-way
street hasbeen changed
For this reaso n,you must alwaysobserve road
and traffic rulesand regul ations duringyou r
journey. Roadand traffic rulesand regul ations
alw ayshave priorityover multime diasystem
driving recommendati ons. Navig
ation announcements areintended to
direct youwhiledriving withoutdiverting your
attention fromtheroad anddriving.
Plea sealw aysuse this feature instead ofcon-
sul ting themap displayfordirections. Looking
at the icons ormap displaycan distract you
from traffic conditions anddriving, and
increase therisk ofan accide nt.
This equipment complieswith FCCradiation
exposu relimi tsset forth foruncontrolled
equ ipment andmeets theFCC radiofreque ncy
(RF) Exposure Guideli nes inSuppl ement Cto
OET65.
This equipment hasvery lowlevel sof RF
energy thatisdeeme dto comply withoutmaxi-
mum permis siveexposu reeval uation(MPE).
However, itis recommended toinstall itat a
distance ofat lea st8inches (approx. 20cm)
betwee nthe radiation source andaperson's
body (notinclud inglimb ssuch ashands,
wrists, feetandlegs) . G
WARNING
Modi fications toelectronic components,
their software aswel las wiri ngcan impa ir
their function and/orthefunction ofother
networked components. Inparticu lar,sys-
tems releva ntto safety couldalsobeaffec-
ted. Asaresul t,these maynolonger func-
tion asintended and/orjeopardizethe oper-
ating safety ofthe vehicle .There isan
increase drisk ofan accide ntand injury.
Never tamper withthewiringaswel las elec-
tronic components ortheir software .You
shoul dhave allwork toelectrica land elec-
tronic equipment carried outataqua lified
specia listworkshop . Func
tionrestrictio ns
For safety reasons,some functions arerestric-
ted orunava ilable whil ethe vehicle isin
motion. Youwillnotice this,forexampl e,
becau seeither youwillnot beableto sele ct
certain menuitemsoramessag ewil lapp ear
to this effect. 246
Func
tionrestrictio nsMultimedia system

Fav
orites button You
canassignpre definedfun ction susin gth e
007D favoritesbut tonand callthem upby
pre ssin gth ebut ton(Y page 248). Fav
orites
Calli ngup and exitingfavor ites X
To call up:pre ssthe007D buttonon the
co ntrol ler.
X Se lec ta fav orite,e. g. Veh icle Veh
icle.
The favoritesare disp layed.
X To exit :pre ssthe007D buttonagain .
Add ingfavor ites Add
ingpredef ined favor ites
X Pre ssthe007D button.
X Sli de 6 theco ntrol ler.
X Se lec tRea ssign Rea
ssign.
The categor iesare disp layed.
X Se lec ta cat egor y.
The favoritesare disp layed.
X Se lec ta fav orite.
X To add thefav oriteto thedesi redposi tion ,
tur nand presstheco ntrol ler.
If afav oritehas already been added atthis
pos ition ,it will beove rwritte n.
Add ingyou rown favor ites
You canadd climat eco ntrol asafav orite,for
ex ampl e.
X Se lec tVeh icle Veh
icle007BV ehicle Settings Veh
icleSet tings.
X Pre ssand hold the007D buttonunt ilth e
fav oritesare disp layed.
X Ad dafav oriteto thedesi redposi tion .
If afav oritehas already been added atthis
pos ition ,it will beove rwritte n. Na
viga tion mod e
Imp ortant safety notes G
WAR
NING
If you oper ateinform ation syst ems andcom-
mun ication equipm entint egr atedin the
veh iclewhen driving,you may bedist racted fr
om thetraff icsit uati on.You could also
lose control oftheveh icle. Ther eis aris kof
an acc iden t.
On lyoper atethis equipm entwhen thetraff ic
sit uati onper mits.Ifyou arenotsure that
th is ispos sible ,park theveh iclepayin g
att ention totraff icco nd ition sand oper ate
th eequipm entwhen theveh icleis stati on-
ary.
You must observeth elegal require men tsfor
th eco unt ryinwhic hyou arecurren tly driv ing
when operating thenav igat ionsyst em.
Gener alnot es Am
ongot her thing s,co rrect function ing ofthe
nav igat ionsyst emdepe ndson GPS recept ion.
In cer tainsit uati ons,GPS recept ion may be
impa ired,th ere may beinterf ere nceor there
may beno rec ept ion atall, e.g. intun nelsor
park inggarag es.
Fur ther inform ation can befoun din theDig ital
Oper ator'sMan ual.
Select ingarou tetype and route
opt ions Mult
imed iasyst em:
X Se lec tNav i Nav
i007BN avigation Nav
igation.
The map showstheveh icle's curren tposi -
ti on .
X Sli de 6 theco ntrol ler.
X Se lec tOpt ions Opt
ions007BR outeSet tings Rou
teSettings.
Not esfor rout etyp es:
R Eco Route Eco
Route
R Dyn amicTra fficRou te Dyn
amicTra fficRou te
Traf ficrep ortson therout efor therout e
guidan ceare takenintoacc oun t(n ot availa -
ble inall count ries ).
R Dyn amicTRF .Rou teAfterRequest Dyn
amicTRF .Rou teAfterRequest
You candecide whet herornotcur ren ttr af-
fic rep ortssho uld beincluded intherout e
calc ulation(not availa bleinall count ries ).
R Cal cul ate AlternativeRoutes Cal
cul ate AlternativeRoutes
Dif ferentrout esare bein gcalc ulated.In
ord erto do so, instead ofSta rt Sta
rt,sele ctthe
men uitem Continue Con
tinue. 248
Op
era ting syst emMultim edia system

X
To avo id/use route options:sel ect
Avo idOptions Avo
idOptions.
X Sel ect arou teoptio n.
Note sfor routeoptio ns:
R Use TollRoa ds Use
TollRoa ds
The routecal cul ation incl udes roa dswhich
req uire youto paya us ag efee (toll).
R Num ber ofOccupants inthe Vehicle: Num
ber ofOccupants inthe Vehicle:
(o nly availab lein the USA)
Pre requisite: your veh iclemee tsthe acce ss
cond itions forcarpoollanes.
Ca rpo ollanes willbe incl uded ifthe carpool
la nes optio nis acti vate d.
En teri nganaddres s Mu
ltimed iasystem :
X Sel ect Navi Nav
i007BN avigation Nav
igation.
The mapsho wsthe vehicle's current posi-
tio n.
X Sli de 6 thecontro ller.
X Sel ect Destination Des
tination007B AddressEnt ry Add
ressEnt ry.
Enter anaddre ss, e.g.as follows :
R city orZIP code,stre et,hou senum ber
R sta te/p rovince, cityorZIP code
R city orZIP code,cente r
R stre et,city orZIP code,inte rsectio n
X Sel ect City Cit
y.
The cityinwh ich the vehicleis cur rentl y
lo cate d(cu rrentveh iclepo sitio n)isat the
top. Below this,yo uwi llsee locati ons for
wh ich routeguidance hasal rea dybeen car -
rie dou t.
X Enter thecity.
The 0043symbo l:the locati onisconta inedon
the digital map multiple time s.
X To switchto the list: slid e 5 thecontro l-
le r.
X Sel ect the locati on.
If ava ilab le,the ZIPcodeis sho wn. Ifther e
are differ ent ZIPcodesava ilab lefor the
lo cati on, the corr espond ingdigits are dis-
pl ay ed with an X X.
X Enter thestre etand housenum ber.
The addre ssisin the menu .
Furth eropti onsfor des tinatio nen try:
R sea rch forakey word The
keywordsea rch findsde stina tions using
fra gme ntsofwo rds .
R sel ect the last destina tion
R sel ect aconta ct
R sel ect aPOI
Yo ucan search foraPOI bylocati on, nam e
or telephone number.
R sel ect destina tionon the map
R enter interme diate destina tion
Yo ucan mapthe routeto the destina tion
yo ursel fwi th up tofou rinte rme diate desti-
nati ons.
R sel ect destina tions from Mercedes-B enz
App s
R sel ect geo-coo rdinate s
Cal culatin gthe route Pre
requisite: the addre sshasbe en enter ed
and isin the menu .
X Sel ect Start Sta
rtorCon tinue Con
tinue.
The routeiscal cul ate dwi th the selecte d
rou tetyp eand theselecte drou teoptio ns.
If rou teguidance hasal rea dybeen acti va-
ted ,a pro mpt willap pe ar asking whethe r
yo uwi sh toend thecurrent routeguidance .
X Sel ect Cancel Active RouteGuidance Can
cel Active RouteGuidanceor
Set asIntermediate Destination Set
asIntermediate Destination.
Can cel Active RouteGuidance Can
cel Active RouteGuidancecance ls
the current routeguidance andstarts rou te
cal cul ation tothe new destina tion.
Set asIntermediate Destination Set
asIntermediate Destinationadds
the new destina tionin ad ditio nto the exist-
ing destina tionand opens theinterme diate
de stina tions list. Co
nnectin gamob ile phon e
(C OMA ND)
Requ iremen ts For
telephony viathe Bluetoo th®
inte rface, you
req uire aBlu etoo th®
-cap ablemob ile pho ne.
The mob ile pho nemu stsupp ort Hand s-Free
Pro file 1.0 orabove .
Mu ltimed iasystem :
X Sel ect Vehicle Veh
icle007BS ystemSet‐ Sys
tem Set‐
tin gs tin
gs007B ActivateBluetooth Act
ivateBluetooth.
X Activa teBlu etoo th®
0073. Ope
ratin gsys tem
249Mul time diasystem Z