warning light MERCEDES-BENZ C-Class COUPE 2017 CL205 Repair Manual
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2017, Model line: C-Class COUPE, Model: MERCEDES-BENZ C-Class COUPE 2017 CL205Pages: 354, PDF Size: 8.66 MB
Page 222 of 354
Safety systems
Display messagesPossible causes/consequences andMSolutions
!÷
Currently Unavaila‐ble See Operator'sManual
ABS (Anti-lock Braking System) and ESP®(Electronic Stability Pro-
gram) are temporarily not available.
Other driving systems and driving safety systems may also be faulty.
In addition, the ÷and! warning lamps light up in the instru-
ment cluster.
For example, the on-board voltage may be insufficient.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you brake
hard, for example.
The steerability and braking characteristics may be severely affected.
The braking distance in an emergency braking situation can increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XDrive on carefully.
Carefullyd riveasuitable distance, making slight steering move-
mentsatas peed above 12 mph (20 km/h).
If the display message disappears, the functions mentioned above are available again.
If the multifunction display still shows the display message:
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
!÷
Inoperative SeeOperator's Manual
ABS and ESP®are malfunctioning.
Other driving systems and driving safety systems may also be faulty.
The $ (USA only) or J(Canada only), ÷and! warning
lamps in the instrumentc luster may also light up.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you brake
hard, for example.
The steerability and braking characteristics may be severely affected.
The braking distance in an emergency braking situation can increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
220Display messages
On-board computer and displays
Page 223 of 354
Display messagesPossible causes/consequences andMSolutions
÷
Inoperative SeeOperator'sManual
ESP®is malfunctioning .
Other drivin gsystems and drivin gsafet ysystems may also be faulty.
The ÷ warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The brak esystem continues to function normally, but without th e
function slisted above.
The braking distanc einanemergenc ybraking situation can thus
increase.
If ES P
®is no toperational, ES P®is unable to stabiliz ethe vehicle.
There is an increased ris kofskiddin gand an accident.
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
÷
Currently Unavaila‐ble See Operator' sManual
ESP®is temporarily unavailable .
Other drivin gsystems and drivin gsafet ysystems may also be faulty.
The ÷ warning lamp also lights up in th einstrumen tcluster.
The self-diagnosis function might no tbecomplete, for example.
GWARNIN G
The brak esystem continues to function normally, but without th e
function slisted above. The wheels could therefor eloc kify ou brak e
hard, for example.
The braking distanc einanemergenc ybraking situation can thus
increase.
If ES P
®is no toperational, ES P®is unable to stabiliz ethe vehicle.
There is an increased ris kofskiddin gand an accident.
XCarefully drive asuitable distance, making slight steering move-
ments at aspeed abov e12mph(20 km/ h).
If the display messag edisappears, the functions mentioned above
are available again.
If the multifunction display still shows the display message:
XDrive on carefully.
XVisit aqualifieds pecialist workshop immediately.
Display messages221
On-board computer and displays
Z
Page 224 of 354
Display messagesPossible causes/consequences andMSolutions
T!
÷
Inoperative SeeOperator'sManual
EBD( electronic brak eforce distribution), AB Sand ES P®are malfunc -
tioning .
Other drivin gsystems and drivin gsafet ysystems may also be faulty.
In addition ,the ÷ and! warning lamp sligh tupint heinstru-
men tcluste rand aw arning tone sounds.
GWARNIN G
The brak esystem continues to function normally, but without th e
function slisted above. The fron tand rear wheels could therefor eloc k
if you brak ehard, for example.
The steerabilit yand braking characteristics may be severely affected.
The braking distanc einanemergenc ybraking situation can increase.
If ES P
®is no toperational, ES P®is unable to stabiliz ethe vehicle.
There is an increased ris kofskiddin gand an accident.
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
F(USA
only)
!(C anada
only)
Tur nOnt he Igni‐
tiontoReleas etheParkingBrake
The red F(USAonly) or ! (Canada only) indicator lamp lights
up.
You attempte dtorelease th eelectric parking brak ewhile th eignition
was switched off .
XSwitchont heignition .
F(USA
only)
!(C anada
only)
Please
Releas ePark‐ing Brake
The red F(USAonly) or ! (Canada only) indicator lamp flashes
and awarning tone sounds. Aconditi on for automatic release of th e
electric parking brak eisnotfulfilled (
Ypage 153).
You are drivin gwitht he electric parking brak eapplied.
XReleas ethe electric parking brak emanually.
The red F(USAonly) or ! (Canada only) indicator lamp flashes
and awarning tone sounds.
You are usin gthe electric parking brak efor emergenc ybraking
(
Ypage 153).
F(USA
only)
!(C anada
only)
Parkin gBrake See
Operator' sManual
The yellow !warning lamp lights up.
The electric parking brak eismalfunctioning .
To apply :
XSwitchthe ignition off .
XPress theelectric parking brak ehandle for at least te nseconds.
XShift th etransmission to position P.
XConsultaqualified specialist workshop .
222Display messages
On-boardcomputer andd isplays
Page 225 of 354
Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp and th ered F (USAonly) or !
(Canada only) indicator lamp ligh tup.
The electric parking brak eismalfunctioning .
To release:
XSwitc hoff th eignition and tur nitbacko n.
XReleas ethe electric parking brak emanually.
or
XReleas ethe electric parking brak eautomatically (Ypage 153).
If th eelectric parking brak estill canno tbereleased:
XDo no tdrive on .
XConsult aqualified specialist workshop .
The redF(USAonly) or ! (Canada only) indicator lamp flashes
and th eyellow !warning lamp lights up.
The electric parking brak eismalfunctioning .
To release:
XSwitc hoff th eignition and tur nitbacko n.
XReleas ethe electric parking brak emanually.
To apply :
XSwitchoff th eignition and tur nitbacko n.
XApply th eelectric parking brak emanually.
If th ered F (USAonly) or ! (Canada only) indicator lamp con-
tinue stof lash:
XDo no tdrive on .
XSecurethe vehicl eagainst rollin gaway (Ypage 336).
XShift th etransmission to position P.
XTurn thefront wheels toward sthe curb.
XConsult aqualified specialist workshop .
Display messages223
On-boardc omputer andd isplays
Z
Page 226 of 354
Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up. The red F(USAonly)
or ! (Canada only) indicator lamp flashes for about te nseconds
after th eelectric parking brak ehas been applie dorreleased. It then
goe sout or remain slit.
The electric parking brak eismalfunctioning .
XSwitchoff th eignition and tur nitbacko n.
XApply th eelectric parking brake.
If it is no tpossibl etoengage th eelectric parking brake:
XShift th etransmission to position P.
XVisitaqualified specialist workshop .
If it is no tpossibl etorelease th eelectric parking brak emanually:
XReleas ethe electric parking brak eautomatically (Ypage 153).
If th eelectric parking brak estill canno tbereleased:
XConsult aqualified specialist workshop .
The yellow!warning lamp lights up. If you manually apply or
release th eelectric parking brake, th ered F (USAonly) or !
(Canada only) indicator lamp flashes .
The electric parking brak eismalfunctioning .Itisnotpossibl etoapply
th ee lectric parking brak emanually.
XShift th eselector lever to P,astheelectric parking brak eisnot
applie dautomatically.
XVisit aqualified specialist workshop .
If it is no tpossibl etorelease th eelectric parking brak emanually:
XReleas ethe electric parking brak eautomatically (Ypage 153).
F(USA
only)
!(C anada
only)
Parkin gBrake Inop‐
erativ e
The yellow !warning lamp lights up. The red F(USAonly)
or ! (Canada only) indicator lamp flashes for about te nseconds
after th eelectric parking brak ehas been applie dorreleased. It then
goe sout or remain slit.
The electric parking brak eismalfunctioning ,e.g.b ecause of over-
voltag eorundervoltage.
XRemove th ecaus efor th eovervoltage or undervoltage, e.g. by
charging th ebattery or restarting th eengine.
XEngage or release th eelectric parking brake.
If it remain simpossible to apply or release th eelectric parking brake:
XSwitc hoff th eignition and tur nitbacko n.
XEngage or release th eelectric parking brake.
If th eelectric parking brak estill canno tbereleased:
XConsult aqualified specialist workshop .
If th eelectric parking brak estill canno tbeapplied:
XVisitaqualified specialist workshop .
224Display messages
On-boardcomputer andd isplays
Page 227 of 354
Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up and th ered F (USAonly)
or ! (Canada only) indicator lamp flashes .
It is no tpossibl etoapply th eelectric parking brak emanually.
XShift th etransmission to position P.
XVisitaqualified specialist workshop .
$(USA
only)
J(C anada
only)
Check Brake Fluid
Level
There is no tenough brak efluidint hebrak efluid reservoir .
In addition ,the $ (USAonly) or J (Canada only) warning lamp
lights up in th einstrumen tcluste rand aw arning tone sounds.
GWARNIN G
The braking effec tmay be impaired.
There is ariskofana ccident.
XPull overand stop th evehicl esafely as soo naspossible, payin g
attention to roa dand traffic conditions. Do no tcontinue driving
under any circumstances.
XSecur ethe vehicl eagainst rollin gaway (Ypage 152).
XConsult aqualified specialist workshop .
XDo notadd brak efluid .This does no tcorrect them alfunction .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
US Ao nly: th e$ red brak esystem warning lamp is lit while th e
engin eisrunning.
XVisit aqualified specialist workshop .
G
Inoperative
Oneorm orem ain features of th embrace system are malfunctioning .
XVisitaqualified specialist workshop .
Collision Preven‐tionAssist Plu sCurrently Unavaila‐ble See Operator' sManual
COLLISION PREVENTION ASSIST PLU Sistemporarily no toperational.
Possibl ecauses are:
Rther adar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sofelectromagneti cradiation .
Rthes ystem is outside th eoperating temperature range.
Rtheo n-bo ardv oltag eistoolow.
Whe nthe causes state dabov enol onger apply, th edisplay message
disappears.
COLLISION PREVENTION ASSIST PLU Sisoperational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo naspossible, payin g
attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 152).
XRestart th eengine.
Display messages22 5
On-boardc omputer andd isplays
Z
Page 229 of 354
Display messagesPossible causes/consequences andMSolutions
RadarSensorsDirtySee Operator' sMan‐ual
At least on eofthefollowin gdrivin gsystems or drivin gsafet ysystems
is temporarily restricted or inoperative:
RPRE-SAF E®PLUS
RPRE-SAF E®Brake
RCOLLISION PREVENTION ASSIST PLU S
RActive LaneKeepin gAssist
RActive Blind Spot Assis t
RDISTRONICPLUSw ithS teering Assis tand Stop&Go Pilo t
If th eradar sensor system in fron tisdirty, Active Blind Spot Assis twill
no tp erfor mac ourse-correcting brak eapplication .
Possibl ecauses are:
Rthes ensor sintheradiato rtrima nd/o rinthebumpers are dirty
Rthef unction of th edrivin gsystem or drivin gsafet ysystem is
impaire ddue to heav yrain or snow
Aw arning tone also sounds.
Whe nthe causes state dabov enol onger apply, th edisplay message
disappears. Al ldrivin gsystems or drivin gsafet ysystems are operative
again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo naspossible, payin g
attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 152).
XSwitc hoff th eengine.
XClean th esensor sinthefollowin glocation s(Ypage 296):
Rin theradiato rtrim
Rin th efront bumper
Rin therear bumper, particularly in th emiddle of th erear bumper
XRestart th eengine.
The display message disappears.
6
SRSMalfunctionSer ‐viceRequired
The restrain tsystem is faulty. The 6warning lamp also lights up in
th ei nstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th eevent of an accident, may no tbetriggered .
There is an increased ris kofinjury.
XVisit aqualified specialist workshop immediately.
Fo rfurther information about th erestrain tsystem, see (
Ypage 41).
Display messages227
On-boardc omputer andd isplays
Z
Page 230 of 354
Display messagesPossible causes/consequences andMSolutions
6
Front LeftMalfunc‐tionServic eRequiredorFrontRight MalfunctionServic eRequired
The restrain tsystem has malfunctioned at th efront on th eleftorr ight.
The 6 warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th eevent of an accident, may no tbetriggered .
There is an increased ris kofinjury.
XVisit aqualified specialist workshop immediately.
6
Rea rLeftM alfunc‐tionServic eRequiredorRea rRight MalfunctionServic eRequired
The rear left-han dorright-hand restrain tsystem has malfunctioned.
The 6 warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th eevent of an accident, may no tbetriggered .
There is an increased ris kofinjury.
XVisit aqualified specialist workshop immediately.
6
Lef tSideC urtai nAirbag MalfunctionServic eRequiredor
Right Sid eCurtai n
Airbag MalfunctionServic eRequired
There is amalfunction in th eleft-han dorright-hand window curtai nair
bag.
The 6 warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The lef torright window curtai nair bag may either be triggered unin-
tentionally or, in th eevent of an accident, may no tbetriggered .
There is an increased ris kofinjury.
XVisit aqualified specialist workshop immediately.
228Display messages
On-boardc omputer andd isplays
Page 233 of 354
Display messagesPossible causes/consequences andMSolutions
If theconditi onsa re no tfulfilled ,the system is no toperating correctly.
XVisit aqualified specialist workshop immediately.
Fo rfurther information about th eOccupant Classification System, see
(
Ypage 49).
Lights
Display messagesPossible causes/consequences and MSolutions
b
CheckLeftLowBeam(Example)
The correspondin gbulb is faulty.
XVisit aqualified specialist workshop .
or
XChec kwhether you are permitte dtoreplace th ebulb yourself
(Ypage 114).
iLE Dl igh tsources: th edisplay message for th ecorre spondin g
lamp only appear swhen all th eLEDsint helamp hav efailed.
b
Active HeadlampsInoperative
The active ligh tfunction is faulty.
XVisit aqualified specialist workshop .
b
Malfunction SeeOperator’sManual
The exterio rlighting is defective.
XVisit aqualified specialist workshop .
b
AutoLampF unctionInoperative
The ligh tsensor is faulty.
XVisit aqualified specialist workshop .
b
Switch Off Lights
You leavethe vehicl eand th elights are switched on .Awarning tone
also sounds.
XTurn th eligh tswitch to th eà position .
b
Switch On Headlamps
You are drivin gwithl ow-beam headlamp sswitched off .
XTurn theligh tswitch to th eL orà position .
Display messages231
On-boardc omputer andd isplays
Z
Page 249 of 354
Safety
Seat belts
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
üNAfter startin gthe engine, the red seat belt warning lamp lights up for 6seconds.
The seat belt warning lamp reminds the driver and front passenger to fasten their
seat belts.
XFasten your seat belt (Ypage 45).
üN After startin gthe engine, the red seat belt warning lamp lights up. In addition, a
warning tone sounds for up to 6seconds.
The driver's seat belt is not fastened.
XFasten your seat belt (Ypage 45).
The warning tone ceases.
üN The red seat belt warning lamp lights up after the engine starts, as soon as the
driver's or the front-passenger door is closed.
The driver or front passenger has not fastened their seat belt.
XFasten your seat belt (Ypage 45).
The warning lamp goes out.
There are object sonthe front-passenger seat.
XRemove the object sfrom the front-passenger seat and stow them in asecure
place.
The warning lamp goes out.
üN The red seat belt warning lamp flashes and an intermittenta udible warning
sounds.
The driver or front passenger has not fastened their seat belt. The vehicle is being
driven faster than 15 mph (25 km/h) or has briefly been driven faster than 15 mph
(25 km/h).
XFasten your seat belt (Ypage 45).
The warning lamp goes out and the intermittentw arning tone ceases.
There are object sonthe front-passenger seat. The vehicle is being driven faster
than 15 mph (25 km/h )orhas briefly been driven faster than 15 mph (25 km/h).
XRemove the object sfrom the front-passenger seat and stow them in asecure
place.
The warning lamp goes out and the intermittentw arning tone ceases.
Warning and indicator lampsinthe instrument cluster247
On-board computer and displays
Z