MERCEDES-BENZ CLA COUPE 2019 Owner's Manual

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 00AF
Obt ain aNew Key Obt
ain aNew Key The
SmartKey needs tobe rep lace d.
X Vis itaqualif iedspecialistwor kshop . 00AF
Rep laceKey Battery Rep
laceKey Battery The
SmartKey battery isdisc harged.
X Chan gethebat tery (Y page 73). 00AF
Don 'tForget Your Don
'tForget Your
Key Key The
displaymes sage issho wnforamax imum of60 sec onds and is
on lyarem inder.
You haveopen edthedri ver 'sdoor withth een gin eswit ched off.The
Sm artKey isno tin theign ition lock.Awarn ingtone soun ds.
X Tak eth eSm artKey withyou when youleaveth eveh icle. 00AF
Key NotDetect ed Key
NotDetect ed
(re ddisp laymes sage ) The
SmartKey isno tin theveh icle.
A warn ingtone also soun ds.
If th een gin eis swit ched off,you can nolonger lockth eveh iclece n-
tr ally orstart theen gin e.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 142).
X Loc ate theSm artKey. Be
caus eth ere isint erf ere ncefrom ast ron gsour ceofradi owave s,the
Sm artKey isno tdet ectedwhils tth een gin eis run ning.
A warn ingtone also soun ds.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 142).
X Inser tth eSm artKey intoth eign ition lockand drive inSm artKey
mod e. 00AF
Key NotDetect ed Key
NotDetect ed
(whit edisp laymes sage ) The
SmartKey iscur ren tly und etec ted.
X Chan getheloc ation oftheSm artKey intheveh icle.
If th eSm artKey still can notbe det ected:
X Ope rateth eveh iclewit hth eSm artKey intheign ition lock. 00AF
Rem ove 'Start'But ‐ Rem
ove 'Start'But ‐
ton andInsert Key ton
andInsert Key The
SmartKey isco ntinu ally undetec ted.
The SmartKey detection fun ction has ate mpo rarymalf unction oris
fault y.Awarn ingtone also soun ds.
X Inser tth eSm artKey intoth eign ition lockand turnit to thedes ired
pos ition .
X Vis itaqualif iedspecialistwor kshop . Disp
laymes sage s
219On -boar dcomp uter anddi sp lay s Z

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 0025
0051
The yellow ABS warning lamp islit whi lethe engine isrunning.
ABS (Anti-lock BrakingSystem) isdea ctivated duetoamalfu nction. Therefore,
BAS (Brake Assist), ActiveBrakeAssist, ESP®
(Electronic StabilityProgra m),the
HOLD function andhillstart assist,for exampl e,are alsodea ctivated.
ATTENTION ASSISTisdea ctivated.
G WARNING
The brake system continues tofunction normally,but witho utthe functions listed
abo ve.The whee lscoul dtherefore lockifyou brake hard,for exampl e.
The steerab ility and braki ngchara cteristics maybesevere lyaffected. Thebraki ng
dista nceinan emerge ncybraki ngsitua tioncanincreas e.
If ESP ®
is not opera tional,ESP ®
is unab leto stabi lizethevehicl e.
There isan increas edrisk ofskiddi ngand anaccide nt.
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Drive oncarefu lly.
X Visi ta qua lified speci alist worksho pimmed iately.
If the ABS control unitisdefective ,there isals oapossi bility that other systems ,
such asthe naviga tionsystem orthe automatic transmissi on,willnot beava ilable . 0025
0051
The yellow ABS warning lamp islit whi lethe engine isrunning.
ABS istempora rilyunava ilable .There fore,BAS, Active BrakeAssist, ESP®
,EBD
(el ectronic brakeforcedistributio n),the HOLD function andhillstart assist,for
exampl e,are alsodea ctivated.
Possi blecaus esare:
R self-di agnosi sis not yetcomple te
R the on-board voltagemay beinsuffi cient
ATTENTION ASSISTisdea ctivated.
G WARNING
The brake system continues tofunction normally,but witho utthe functions listed
abo ve.The front andrear whee lscoul dtherefore lockifyou brake hard,for exam-
ple .
The steerab ility and braki ngchara cteristics maybesevere lyaffected. Thebraki ng
dista nceinan emerge ncybraki ngsitua tioncanincreas e.
If ESP ®
is not opera tional,ESP ®
is unab leto stabi lizethevehicl e.
There isarisk ofan accide nt.
X Ca reful lydrive asui table distance,making slightsteering movements ataspee d
abo ve12 mph (20km/h) .
The functions mentioned aboveare available aga inwhen thewarni nglamp goes
out.
If the warning lamp isstill on:
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Drive oncarefu lly.
X Visi ta qua lified speci alist worksho pimmed iately. 222
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 0025
0051
The yellow ABS warning lamp islit whi lethe engine isrunning. Awarni ngtone
als osound s.
EBD ismalfu nctioning. Therefore,ABS, BAS,Active BrakeAssist, ESP®
,the HOLD
function andhillstart assist,for exampl e,are not available either.
ATTENTION ASSISTisdea ctivated.
G WARNING
The brake system continues tofunction normally,but witho utthe functions listed
abo ve.The front andrear whee lscoul dtherefore lockifyou brake hard,for exam-
ple .
The steerab ility and braki ngchara cteristics maybesevere lyaffected. Thebraki ng
dista nceinan emerge ncybraki ngsitua tioncanincreas e.
If ESP ®
is not opera tional,ESP ®
is unab leto stabi lizethevehicl e.
There isan increas edrisk ofskiddi ngand anaccide nt.
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Drive oncarefu lly.
X Visi ta qua lified speci alist worksho pimmed iately. 0025
00E500BB
0027004D 0051
0027(USA only),004D (Canada only):the red brake warninglamp andtheyellow
ABS, ESP®
and ESP®
OFF warning lamp sare litwhi lethe engine isrunning.
ABS andESP®
are malfu nctioning. Therefore,BAS, Active BrakeAssist, EBD,the
HOLD function andhillstart assist,for exampl e,are not available either.
ATTENTION ASSISTisdea ctivated.
G WARNING
The brake system continues tofunction normally,but witho utthe functions listed
abo ve.The front andrear whee lscoul dtherefore lockifyou brake hard,for exam-
ple .
The steerab ility and braki ngchara cteristics maybesevere lyaffected. Thebraki ng
dista nceinan emerge ncybraki ngsitua tioncanincreas e.
If ESP ®
is not opera tional,ESP ®
is unab leto stabi lizethevehicl e.
There isan increas edrisk ofskiddi ngand anaccide nt.
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Drive oncarefu lly.
X Visi ta qua lified speci alist worksho pimmed iately. Warning
andindic atorlamps inthe instrum entcluster
223On-boardcomput erand displays Z

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00E5
0051
The yellow ESP®
war ning lamp flashes whilethe vehicl eis in motion.
ESP ®
or traction controlhasintervened becausethere isarisk ofskiddi ngorat
lea stone whee lhas started tospin.
Cru isecontrol orActive Distance AssistDISTRONIC isdea ctivated.
X When pulling away,only depre ssthe accele ratorpedalas far asnecessa ry.
X Ease offthe accele ratorpedalwhi lethe vehicl eis in motion.
X Adapt yourdrivi ngstyle tosui tthe road andweather conditions.
X Do not deactivate ESP®
.
In rare cases (Ypag e66) ,it may bebest todea ctivate ESP®
.
Observe theimpor tantsafety notesonESP ®
(Y pag e64). 00BB
0051
The yellow ESP®
OFF warning lamp islit whi lethe engine isrunning.
ESP ®
is dea ctivated. ESP®
wil lnot stabi lizethevehicl eif it starts toskid orifa
whee lstarts tospin.
G WARNING
If ESP ®
is swi tched off,ESP ®
is unab leto stabi lizethevehicl e.
Further drivingsystems ordrivi ngsafety systems arethus restricted.
There isan increas edrisk ofskiddi ngand anaccide nt.
X Rea ctivate ESP®
.
In rare cases (Ypag e66) ,it may bebest todea ctivate ESP®
.
Observe theimpor tantsafety notesonESP ®
(Y pag e64).
X Adapt yourdrivi ngstyle tosui tthe road andweather conditions.
If ESP ®
cannot beactiva ted:
X Drive oncarefu lly.
X Contact aqua lified speci alist worksho pand have ESP®
checked. 0074
0051
Mercede s-AMGvehiclesonly :
The yellow SPORT handlingmode warning lamp islit whi lethe engine isrunning.
SPORT handlingmode isactiva ted.
G WARNING
When SPORT handlingmode isswi tched on,ESP ®
is unab leto stabi lizethevehicl e.
There isan increas edrisk ofskiddi ngand anaccide nt.
X Only switch toSPORT handlingmode inaccorda ncewith theconditions descri-
bed inthe "Activating/d eactivatingESP®
" section (Ypag e66) . 224
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 00E500BB
0051
The yellow ESP ®
and ESP®
OFF warni nglamp sare litwhi lethe engine isrunning.
ESP ®
,BAS, Active BrakeAssist, theHOLD function andhillstart assistare not
ava ilable due toamalfu nction.
ATTENTION ASSISTisdea ctivated.
G WARNING
The brake system continues tofunction normally,but witho utthe functions listed
abo ve.
The braki ngdista nceinan emerge ncybraki ngsitua tioncanthus increas e.
If ESP ®
is not opera tional,ESP ®
is unab leto stabi lizethevehicl e.
There isan increas edrisk ofskiddi ngand anaccide nt.
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Drive oncarefu lly.
X Visi ta qua lified speci alist worksho pimmed iately. 00E500BB
0051
The yellow ESP ®
and ESP®
OFF warni nglamp sare litwhi lethe engine isrunning.
ESP ®
,BAS, theHOLD function andhillstart assistare tempora rilyunava ilable .
Active BrakeAssist mayhave alsofail ed.
ATTENTION ASSISTisdea ctivated.
Self-di agnosi sis not yetcomple te
G WARNING
The brake system continues tofunction normally,but witho utthe functions listed
abo ve.
The braki ngdista nceinan emerge ncybraki ngsitua tioncanthus increas e.
If ESP ®
is not opera tional,ESP ®
is unab leto stabi lizethevehicl e.
There isan increas edrisk ofskiddi ngand anaccide nt.
X Ca reful lydrive asui table distance,making slightsteering movements ataspee d
abo ve12 mph (20km/h) .
The functions mentioned aboveare available aga inwhen thewarni nglamp goes
out.
If the warning lamp isstill on:
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Drive oncarefu lly.
X Visi ta qua lified speci alist worksho pimmed iately. Warning
andindic atorlamps inthe instrum entcluster
225On-boardcomput erand 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