Page 233 of 330

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 0059
Var io-RoofLow ering Var
io-RoofLow ering The
roofis no tfull yopen edorclo sed .The hydr aulic sare depr essur-
iz ed.
X Full yopen orclo setheroo f(Y page 91). 0059
Ope n/CloseVar io- Ope
n/CloseVar io-
Roo fCom pletel y Roo
fCom pletel y The
roofis no tloc ked.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Push orpull and hold theroo fswit chunt ilth eroo fis full yopen or
clo sed (Ypage 91). 0059
Sta rtEngine See Sta
rtEngine See
Ope rator'sMan ual Ope
rator'sMan ual The
on-boar dvol tag eis toolow.
X Start theen gin e.
X Afterappr oximat elytensec onds, repeat theopen ingorclo sing
pro cedure (Ypage 91). The
roofhas been openedand closed several times inarow .The
roo fdri ve has been switched off auto maticallyfor safetyreas ons.
You canopen andclosetheroo fagain afterappr oximat elyten
min utes.
X Swi tchoff theign ition and turnit bac kon .
X Repeat theopen ingorclo singpro cedure (Ypage 91). Clo
seRearSid e Clo
seRearSid e
Win dows Win
dows You
leaveth eveh icleand atleast onerear side window isopen .
X Clos eth eside windows (Ypage 88). 00B2
Che ckWasher Fluid Che
ckWasher Fluid The
wash erflui dlev elin thewash erfluid reservoir has dropped
belo wthemin imum .
X Ad dwash erflui d(Y page 268). Wip
erMalfuncti on‐ Wip
erMalfuncti on‐
ing ing The
windsh ield wiper sare malf unction ing .
X Vis itaqualif iedspecialistwor kshop . Haz
ard Warning Haz
ard Warning
Fla shersMalfun c‐ Fla
shersMalfun c‐
tio ning tio
ning The
hazard warn inglamp sare fault y.
X Vis itaqualif iedspecialistwor kshop . Sm
artKey Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 00AF
Key DoesNot Key
DoesNot
Bel ong toVehicl e Bel
ong toVehicl e You
haveput thewro ngSm artKey intheign ition lock.
X Use theco rrec tSm artKey. 00AF
Tak eYou rKey from Tak
eYou rKey from
Ign ition Ign
ition The
SmartKey isin theign ition lock.
X Remo vetheSm artKey. Disp
laymes sage s
231On -boar dcomp uter anddi sp lay s Z
Page 234 of 330

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 Batter y Rep
laceKey Batter y The
SmartKey battery isdisc harged.
X Chan gethebat tery (Y page 77). 00AF
Don 'tForget Your Don
'tForget Your
Key Key The
SmartKey isno tin theign ition lock.You haveopen edthedri v-
er' sdoor withth een gin eswit ched off.
The mult ifunction disp laysho wsthedisp laymes sage amax imum of
60 sec onds and issim plyarem inder.
X Tak eth eSm artKey withyou when youleaveth eveh icle. 00AF
Key NotDetected Key
NotDetected
(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 146).
X Loc ate theSm artKey.
X Pre ss0076 onthest eer ing whee lto confirm thedisp laymes -
sage . Be
caus eth ere isint erf ere ncefrom ast ron gsour ceofradi owave s,
th eSm 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 146).
X Inser tth eSm artKey intoth eign ition lockand bring intoke y
mod e. 00AF
Key NotDetected Key
NotDetected
(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 Inser tth eSm artKey intoth eign ition lockand turnit to the
des iredpos ition . 00AF
Rem ove 'Start'But ‐ Rem
ove 'Start'But ‐
ton andInsert Key ton
andInsert Key The
SmartKey isco ntinu ally undetec ted.
KE YLE SS-GO istempo rarily malf unction ing orisdef ective. Awarn -
ing tone also soun ds.
X Inser tth eSm artKey intoth eign ition lockand turnit to the
des iredpos ition .
X Vis itaqualif iedspecialistwor kshop . 232
Disp
laymes sage sOn -boar dcomp uter anddi sp lay s
Page 235 of 330

Warning
andindic atorlamps Gene
ralnote s
Some systemscarry outaself-d iagnosis whenthe igniti onisswi tched on.There fore,some indi-
cator andwarning lampsmay light up orflas htempora rily.This beha viorisnon-critical. These
indica torand 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 starting theengine, thered seatbel twa rning lamplig hts upfor sixsec-
onds.
The seatbel twa rning lampreminds thedrive rand front passenger tofasten
their seatbel 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. Warning
andindicator lamps
233On-boardcomput erand displays Z
Page 236 of 330

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. 234
Warning
andindic atorlampsOn-bo ardcomput erand displays
Page 237 of 330

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 146).
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 146).
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. War
ning andindicator lamps
235On-board computerand displays Z
Page 238 of 330

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-lo ckbraki ngsystem) ismalfu nctioning.
If there isan add itiona lwar ning tone, theEBD (electronic brakeforcedistribu-
tion) ismalfu nctioning.
Other drivingsystems anddrivingsafety systems mayalsomalfu nction.
G WARNING
The brake system continues tofunction normally,but witho utthe functions lis-
ted above.The front andrear whee lscoul dtherefore lockifyou perform afull
brake application, forexampl e.
The steerab ility and braki ngchara cteristics maybesevere lyaffected. Thebrak-
ing 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 ila-
ble . 0027004D
00E500BB
0025 0051
0027 (USAonly),004D (Canada only):the red brake warninglamp andthe
yel low ESP®
,ESP ®
OFF andABS warning lamp sare litwhi lethe engine isrun-
ning.
ABS andESP®
are malfu nctioning.
Other drivingsystems anddrivingsafety systems mayalsomalfu nction.
G WARNING
The brake system continues tofunction normally,but witho utthe functions lis-
ted above.The front andrear whee lscoul dtherefore lockifyou perform afull
brake application, forexampl e.
The steerab ility and braki ngchara cteristics maybesevere lyaffected. Thebrak-
ing 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. 236
Warning
andindic atorlampsOn-bo ardcomput erand displays
Page 239 of 330

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 e68) itmay bebest todea ctivate ESP®
.
Observe theimpor tantsafety notesonESP ®
(Y pag e66) . 00E500BB
0051
The yellow ESP®
and ESP®
OFF warni nglamp sare litwhi lethe engine isrun-
ning.
ESP ®
is malfu nctioning.
Other drivingsystems anddrivingsafety systems mayalsomalfu nction.
G WARNING
The brake system continues tofunction normally,but witho utthe functions lis-
ted above.
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. 00BB
0051
The yellow ESP®
OFF warning lamp islit whi lethe engine isrunning orthe
ECO start/stop functionisactiva ted.
ESP ®
is dea ctivated.
G WARNING
If ESP ®
is swi tched off,ESP ®
is unab leto stabi lizethevehicl e.
Further drivingsystems ordrivi ngsafety systems arethus restricted, e.g.Active
Blind SpotAssist. Thesystem doesnotperform course-correcting brakeappli-
cations.
There isan increas edrisk ofskiddi ngand anaccide nt.
X Rea ctivate ESP®
.
In rare cases (Ypag e68) itmay bebest todea ctivate ESP®
.
Observe theimpor tantsafety notesonESP ®
(Y pag e66).
X Adapt yourdrivi ngstyle tosui tthe road andweather conditions.
If ESP ®
cannot beactiva ted:
X Drive oncarefu lly.
X Have ESP®
checked ataqua lified speci alist worksho p. Warning
andindic atorlamps
237On-boardcomput erand displays Z
Page 240 of 330

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 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 lizethevehi-
cle.
There isan increas edrisk ofskiddi ngand anaccide nt.
X Only switch toSPORT handlingmode inaccorda ncewith theconditions
descri bedinthe "Activating/d eactivatingESP®
" section (Ypag e68) . 00490024
0051
0049 (USAonly),0024 (Canada only):the red indica torlamp forthe electric
parki ngbrake flashes orislit and/or theyellow warni nglamp forthe electric
parki ngbrake islit.
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 e41). 238
Warning
andindic atorlampsOn-bo ardcomput erand displays