2019 MERCEDES-BENZ CLA COUPE ECU

Warning
andindic atorlamps inthe instrument cluster Gene
ralnote s
Some systemscarry outaself-d iagnosis whenthe igniti onisswi tched on.There fore,some indica tor
and warning lampsmay light up orflas htempora rily.This beha viorisnon-critical.
These indicatorand warning lampsonly indica teamal function ifthey light up orflas hafter starting
the engine orwhi lstdrivi ng. Safety
Seat belts Warning
/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00E9
0051
After engine start,thered seatbel twa rning lamplig hts upfor sixseconds.
The seatbel twa rning lampreminds thedrive rand front passenger tofasten their
sea tbel ts.
X Fasten yoursea tbel t(Y pag e44). 00E9
0051
After starting theengine, thered seatbel twa rning lamplig hts up. Inadd ition, a
wa rning tonesound sfor uptosix seconds.
The drive r'ssea tbel tis not fastened .
X Fasten yoursea tbel t(Y pag e44).
The warning tonecease s. 00E9
0051
The redseatbel twa rning lamplig hts upafter theengine starts,assoon asthe
drive r'sorthe front-passe ngerdoor isclose d.
The drive ror front passenger hasnotfastened theirseatbel t.
X Fasten yoursea tbel t(Y pag e44) .
The warning lampgoes out.
There areobjects onthe front-passe ngerseat.
X Remo vethe objects fromthefront-passe ngerseatand stow them inasecure
pla ce.
The warning lampgoes out. 00E9
0051
The redseatbel twa rning lampflas hes and anintermittent audib lewa rning
sound s.
The drive ror front passenger hasnotfastened theirseatbel t.The vehicl eis bei ng
drive nfaster than15mph (25km/h )or has brieflybeen drivenfaster than15mph
(25 km/h) .
X Fasten yoursea tbel t(Y pag e44).
The warning lampgoes outand theintermittent warning tonecease s.
There areobjects onthe front-passe ngerseat.The vehicl eis bei ng drive nfaster
than 15mph (25km/h )or has brieflybeen drivenfaster than15mph (25km/h ).
X Remo vethe objects fromthefront-passe ngerseatand stow them inasecure
pla ce.
The warning lampgoes outand theintermittent warning tonecease s. 220
Warning
andindicator lamps inthe instrum entclusterOn-bo ardcomput erand displays

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 lampislit
while theengine isrunning. Awarning 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 tiontoroad
and traffic condition s.Do not cont inue driving underanycircumst ances.
X Secure thevehicle against rollingaway(Ypage 142).
X Consult aquali fiedspecialist workshop.
X Observe theadditional displaymessages inthe multifunct iondisplay . 0027004D
0051
0027 (USAonly), 004D(Canada only):thered brake system warning lampislit
while theengine isrunning. Awarning tonealsosounds.
There isnot enough brakefluidinthe brake fluidreservoir.
G WARNING
The braking effectmaybeimpaired.
There isarisk ofan accident.
X Pull over andstop thevehicle safelyassoon aspossible, payingatten tiontoroad
and traffic condition s.Do not cont inue driving underanycircumst ances.
X Secure thevehicle against rollingaway(Ypage 142).
X Do not add brake fluid.Adding morewillnotcorrect themalfunction .
X Consult aquali fiedspecialist workshop.
X Observe theadditional displaymessages inthe multifunct iondisplay . War
ning andindicator lampsin the instrum entcluster
221On-board computerand displays Z

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00240049
0051
0049 (USAonly),0024 (Canada only):the red indica torlamp forthe electric
parki ngbrake flashes orlights upand/or theyellow warni nglamp forthe electric
parki ngbrake lights up.
X Observe theadditiona ldisp laymessa gesinthe multi function display. 0075
0051
The redrestrai ntsystem warning lamp islit whi lethe engine isrunning.
The restrai ntsystem ismalfu nctioning.
G WARNING
The airbag sor Emergency TensioningDevices mayeither betriggere duninten-
tional lyor, inthe event ofan accide nt,may notbetriggere d.
There isan increas edrisk ofinjury .
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Drive oncarefu lly.
X Contact aqua lified speci alist worksho pand have therestrai ntsystem checked.
For further informati onabo utthe restrai ntsystem, see(Ypag e40) . Eng
ine Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00B9
0051
The yellow CheckEngine warning lamp lights upwhi lethe engine isrunning.
There maybeamalfu nction, forexampl e:
R in the engine management
R in the fuel injection system
R in the exhau stsystem
R in the ignitio nsystem
R in the fuel system
The emiss ionlimitvalu esmay beexceede dand theengine maybeinemerge ncy
mode.
X Visi ta qua lified speci alist worksho pimmed iately.
i In
some states, youmust immed iatelyvisit aqua lified speci alist worksho pas
soon asthe yellow CheckEngine warning lamp lights up. This isdue tothe lega l
requ ireme ntsineffect inthese states. Ifin dou bt,check whethe rsuch legal
regu lations applyin the state inwhi chyou arecurrently driving. 00D4
0051
The yellow reserve fuelwarning lamp lights upwhi lethe engine isrunning.
The fuel levelhas dropp edinto thereserve range.
X Refu elat the neares tgas station. 226
Warning
andindic atorlamps inthe instrum entclusterOn-bo ardcomput erand displays

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00D4
0051
The yellow reserve fuelwarning lamp flashes whilethe vehicl eis in motion.
In add ition, the00B9 CheckEngine warninglamp maylight up.
The fuel filler cap isnot closed correctly orthe fuel system islea king.
X Che ckthat thefuel filler cap iscorrectly closed.
X Ifthe fuel filler cap isnot correc tlyclosed: close thefuel filler cap.
X Ifthe fuel filler cap isclo sed: visitaqua lified speci alist worksho p. 00AC
0051
The redcoola ntwar ning lamp lights upwhi lethe engine isrunning andthe
coola nttempera turegage isat the start ofthe scale .
The tempera turesensor forthe coola nttempera turegaugeismalfu nctioning.
The coola nttempera tureisno longer being monitored .There isarisk ofengine
dama geifthe coola nttempera tureistoo high .
X Pul lover andstop thevehicl esafel yand switch offthe engine, paying attention
to road andtraffic conditions. Donot continue drivingunder anycircumsta nces.
X Secure thevehicl eaga inst rolling awa y(Y pag e142) .
X Consu ltaqua lified speci alist worksho p. Warning
andindic atorlamps inthe instrum entcluster
227On-boardcomput erand displays Z

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, theairfl owtothe 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 attention
to road andtraffic conditions.
X Secure thevehicl eaga inst rolling awa y(Y pag e142).
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 e263).
X Ifyou have toadd coola ntfrequ ently, havetheengine coolingsystem checked.
X Make surethattheairsup plytothe engine radiator isnot blocked ,e.g. bysnow,
slu sh orice.
X Do not start theengine againuntil thecoola nttempera tureisbel ow 248 ‡
(120 †).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. drivi nginmountai nousterrain
and stop-and-go traffic. 00AC
0051
The redcoola ntwar ning lamp comes onwhi lethe engine isrunning. Awarni ng
tone alsosound s.
The coola nttempera turehasexceede d248 ‡(120 †).The airflow tothe engine
radi ator may beblocked orthe coola ntleve lmay betoo low.
G WARNING
The engine isnot being coole dsuffi ciently andmay bedama ged.
Do not drive whenyou rengine isoverhe ated.Thiscancausesome fluids which
may have leaked into theengine compartment tocatch fire.
Steam fromtheoverhe atedengine canalso cau seseri ous burns whichcan occur
just byopeni ngthe hood .
There isarisk ofinjury .
X Obse rvethe additiona ldisp laymessa gesinthe multifunction displa y.
X Pul lover andstop thevehi clesafe lyand switch offthe engine, paying attention
to road andtraffic conditio ns.
X Secure thevehi cleaga inst rolling away (Y pag e142) .
X Leav ethe vehi cleand keep asafe dista ncefrom thevehi cleuntil theengine has
coole ddow n.
X Che ckthe coola ntleve land add coola nt,obse rving thewarning notes
(Y pag e263) .
X Ifyou have toadd coola ntfrequ ently, havetheengine coolingsys tem checked.
X Make surethattheairsup plytothe engine radiator isnot blocked, e.g.bysnow,
slu sh orice. 228
Warning
andindicator lamps inthe instrum entclusterOn-b oard comput erand displays

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)islit.
The tirepressu remoni torhasde tecte dalo ss ofpre ssu reinat leas tone ofthe tires.
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 trac-
tio 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 y
atte ntionto the trafficcond itions asyoudo so.
X Secu rethe vehicleag ainst rolling away (Y page 142 ).
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 274 ).
X Ch eck thetire pressu re(Y page 297 ).
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. 23
0 Warni
ngand indic ator lamps inthe instrume ntcluste rOn-bo ard computer anddisplay s

Gene
ralnotes
The multime diasystem section inthis Opera -
tor's Manua ldescrib esthe basi cprincipl esfor
opera tion.More information canbefound inthe
Digital Operator'sManua l. Important
safetynotes G
WARNING
If you opera teinformation systemsandcom-
municatio nequ ipment integrated inthe vehi-
cle when driving, youmay bedistracted from
the traffic situation. Youcould alsolose con-
trol ofthe vehicle .There isarisk ofan acci-
dent.
Only opera tethis equipment whenthetraffic
situa tionpermits. Ifyou arenot sure thatthis
is possi ble,park thevehicle paying attention
to traffic conditions andopera tethe equip-
ment when thevehicle isstationary .
You must observe thelega lrequ irements forthe
country inwhich youarecurrently drivingwhen
opera tingthemultime 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 youfrom
traffic conditions anddriving, andincrease the
risk ofan accide nt.
This equipment complieswith FCCradiation
exposu relimi tsset forth foruncontrolled equip-
ment andmeets theFCC radiofreque ncy(RF)
Exposure Guideli nes inSuppl ement Cto OET65.
This equipment hasvery lowlevel sof RF energy
that isdeeme dto comply withoutmaximu m
permis siveexposu reeval uation(MPE). How-
ever, itis recommended toinstall itat adistance
of at lea st8inches (approx. 20cm) betwee nthe
radi ation source andaperson's body(not
includ inglimb ssuch ashands, wrists,feetand
legs) . G
WARNING
Modi fications toelectronic components, their
software aswel las wiri ngcan impa irtheir
function and/orthefunction ofother net-
worked components. Inparticu lar,systems
releva ntto safety couldalsobeaffected. Asa
resul t,these maynolonger function asinten-
ded and/or jeopardizethe opera tingsafety of
the 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.
You willnotice this,forexampl e,becau seeither
you willnot beabl eto sele ctcertain menuitems
or amessag ewil lapp ear tothis effect. Func
tionrestrictio ns
231Multimedia system Z

Fav
orites button You
canassignpre definedfun ction susin gth e
007D favoritesbut tonand callthem upbypre ss-
ing thebut ton(Y page 233). Fav
orites
Calli ngup and exitingfavor ites X
To call up:pre ssthe007D buttonon theco n-
tr oller .
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 COMAN D:slide 6theco ntrol ler.
X Aud io20: slide 5or6 theco ntrol ler.
The men ubar isdisp layed.
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 COMAN D:toadd thefav oriteto thedesi red
pos ition ,tur nand presstheco ntrol ler.
If afav oritehas already been added atthis
pos ition ,it will beove rwritte n.
X Aud io20: toadd thefav oriteto thedesi red
pos ition ,tur n,slide 5or6 andpressthe
co 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 icationequipm entint egr atedin theveh i-
cle when driving,you may bedist ractedfrom
th etraff icsit uati on.You could also lose con-
tr ol of theveh icle. Ther eis aris kof an acc i-
den t.
On lyoper atethis equipm entwhen thetraff ic
sit uati onper mits.Ifyou arenotsure that this
is pos sible ,park theveh iclepayin gatt ention
to traff icco nd ition sand oper atetheequip-
men twhen theveh icleis stati onary.
You must observeth elegal require men tsfor the
co unt ryinwhic hyou arecurren tly driv ingwhen
oper ating 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
impai red,th ere may beinterf ere nceor there
may beno rec ept ion atall, e.g. intun nelsor
park inggarag es.
Aud io20 isequipp edwithGarm in®
MA PPIL OT
(see theman ufacturer'soper ating ins truct ions).
The Garm in®
MA PPIL OT oper ating instruct ions
are store don theSD cardas aPD Ffile .The SD
car dbox contains aquic kguide .
The followin gdesc riptionsapply tonav igat ion
wit hCOMA ND.Fur ther inform ation can be
foun din theDig ital Oper ator'sMan ual.
Select ingarou tetype and routeopt ions Mult
imed iasyst em:
X Se lec tNav i Nav
i007BN avigation Nav
igation.
The map showstheveh icle's curren tposi tion .
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 Op
era ting syst em
233Multim edia system Z