Media MERCEDES-BENZ C-Class SEDAN 2016 W205 Owner's Manual

Display messagesPossible causes/consequences andMSolutions
RadarSensorsDirtySee Operator' sMan ‐ual
At least on eof th efollowin 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 gAssis t
RActive Blind Spot Assis t
RDISTRONICPLU Swit hSteering Assis tand Stop&Go Pilo t
If th eradar sensor system in fron tis dirty, Active Blind Spot Assis twill
no tperfor m acourse-correcting brak eapplication .
Possibl ecauses are:
Rth esensor sin th eradiato rtrim and/o rin th ebumpers are dirty
Rth efunction of th edrivin gsystem or drivin gsafet ysystem is
impaire ddue to heav yrain or snow
A warning tone also sounds.
Whe nth ecauses state dabov eno longer 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 nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 177).
XSwitchoff th eengine.
XClean th esensor sin th efollowin glocation s (Ypage 339):
Rin theradiato rtrim
Rin th efron tbumper
Rin th erear 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 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 tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop immediately.
Fo rfurther information about th erestrain tsystem, see (
Ypage 46).
Display messages263
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
6
Front LeftMalfunc‐tio nServic eRequiredorFrontRight MalfunctionServic eRequired
The restrain tsystem has malfunctioned at th efron ton th elef tor right .
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 tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop immediately.
6
Rea rLef tMalfunc‐tio nServic eRequiredorRea rRight MalfunctionServic eRequired
The rear left-han dor right-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 tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop immediately.
6
Rea rCenterMalfunc‐tionServic eRequired
The rear center restrain tsystem has malfunctioned. The 6warning
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 tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop immediately.
6
Lef tSid eCurtai nAirbag MalfunctionServiceRequiredor
Right Sid eCurtai n
Airbag MalfunctionServiceRequired
There is amalfunction in th eleft-han dor right-hand window curtai nair
bag. The 6warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The lef tor right window curtai nair bag may either be triggered unin-
tentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop immediately.
264Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
FrontPassengerAir‐bag Disabled SeeOperator' sManual
The front-passenger air bag is deactivated during th ejourney, eve n
though :
Ran adult
or
Raperson of th ecorrespondin gstatur eis on th efront-passenger seat
If additional force sare applie dto th eseat ,th esystem may interpret
th eoccupant's weigh tas lower than it actually is.
GWARNIN G
The front-passenger air bag does no tdeploy during an accident.
There is an increased ris kof injury.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 177).
XSwitchth eignition off .
XHaveth eoccupant get out of th evehicle.
XKee pth eseat unoccupied ,close th efront-passenger door and
switch on th eignition .
XObserveth ePASSENGER AI RBA Gindicator lamp sin th ecenter
console and th emultifunction display and chec kth efollowing:
Seat unoccupied and ignition switched on :
Raself-diagnosis is carrie dout .The PASSENGER AI RBA GOF Fand
PASSENGER AI RBA GON indicator lamp smus tligh tup simulta-
neousl yfor approximately six seconds
Rth ePASSENGER AI RBA GOF Findicator lamp mus tthen ligh tup
and remain lit after th eself -diagnosis .If th eindicator lamp is on ,
OCS (Occupant Classification System) has disabled th efront-
passenger fron tair bag (
Ypage 54 )
Rthedisplay message sFront Passenger Airbag Enable dSee Operator'sManualor Front Passenger Airbag Dis ‐abled See Operator'sManualmus tno tappear in th emulti-
function display
XWait for aperiod of at least 60 seconds until th enecessar ysystem
checks hav ebeen completed.
XMak esur ethat th edisplay message sdo no tappear in th emulti-
function display.
If these condition sare fulfilled ,th efront-passenger seat can be occu-
pied again .Whether th ePASSENGER AI RBA GOF For ON indicator
lamp remain slit or goe sout depend son how OCS classifies th eoccu-
pant.
If th econdition sare no tfulfilled ,th esystem is no toperating correctly.
XVisit aqualified specialist workshop immediately.
Fo rfurther information about th eOccupant Classification System, see
(
Ypage 54).
Display messages26 5
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
XVisitaqualified specialist workshop immediately.
Fo rfurther information about th eOccupant Classification System, see
(
Ypage 54).
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 dto replace th ebulb yourself
(Ypage 122).
iLE Dligh tsources: th edisplay message for th ecorrespondin g
lamp only appear swhen all th eLEDs in th elamp 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
AutoLam pFunctionInoperative
The ligh tsensor is faulty.
XVisit aqualified specialist workshop .
b
Switch Off Lights
You leaveth evehicl 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 gwit hlow-beam headlamp sswitched off .
XTurn theligh tswitch to th eL orà position .
Display messages267
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
?
CoolantToo HotSto pVehicl eTur nEngine Off
The coolan tis to ohot .
A warning tone also sounds.
GWARNIN G
Do no tdrive when your engin eis overheated. This can caus esom e
fluids whic hmay hav eleaked int oth eengin ecompartmen tto catch
fire.
Steam from th eoverheate dengin ecan also caus eserious burn swhic h
can occur jus tby opening th ehood.
There is aris kof injury.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 177).
XWait until th eengin ehas cooled down .
XMakesur ethat th eair supply to th eengin eradiato ris no tblocked,
e.g. by snow, slus hor ice .
XDo no tstart th eengin eagain until th edisplay message goe sout and
th ecoolan ttemperature is belo w24 8 ‡ (120†). Otherwise ,th e
engin ecould be damaged.
XPay attention to th ecoolan ttemperature display.
If th etemperatur eincreases again:
XVisit aqualified specialist workshop immediately.
Under normal operating condition sand wit hth especified coolan t
level, th ecoolan ttemperature may ris eto 24 8 ‡(120†).
#
See Operator' sMan ‐ual
The battery is no tbein gcharged.
A warning tone also sounds.
Possibl ecauses are:
Radefective alternato r
Rdefective powerelectronics (PLUG-IN HYBRID vehicles)
Ra torn poly-V-belt
Ramalfunction in th eelectronics
!Do no tcontinu edriving. The engin ecould otherwise overheat.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 177).
XConsult aqualified specialist workshop .
Display messages269
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
OnlyE-MODE Availa ‐ble Power Limite dRefuel Immediately
PLUG-INHYBRID vehicles:
The fuel tan khas been run dry and th ecombustion engin ehas been
switched off .
A warning tone also sounds.
The vehicl ewill be powered by electrical energ yonly. Performance is
restricted and th evehicl emay accelerate mor eslowly than normal.
XRefue lat th eneares tgas station without fail .
In th e"Total range and electric range" menu, you can display th e
approximat erange of th evehicl e (
Ypage 228).
Engine wil lnotrestar tServic erequired
You canno tstart th eengin eagain due to amalfunction .
A warning tone also sounds.
If th eengin eis running:
XVisit aqualified specialist workshop .
If you switch off th eengine:
XSecur eth evehicl eagainst rollin gaway (Ypage 177).
XNotify aqualified specialist workshop or breakdown service.
á
Towing Not Permit ‐ted See Operator'sManual
The hybrid drive system is faulty.
XHaveth evehicl etransporte don atransporte ror trailer to th enear-
est qualified specialist workshop .
Û
MalfunctionServiceRequired
The hybrid drive system is faulty.
XVisitaqualified specialist workshop .
Û
Malfunction
The hybrid drive system is faulty.
XHaveth evehicl etowed away by aprofessional recovery compan yto
th eneares tqualified specialist workshop .
d
Malfunction
The drive system is malfunctioning .
The ECO start/sto pfunction may be malfunctioning .
The drive powe ris restricted.
XVisit aqualified specialist workshop .
ï
ChargerCable Con ‐nected
PLUG-INHYBRID vehicles:
The charging cable connecto ris still connecte dto th evehicl esocket.
You canno tdrive off as lon gas th echarging cable connecto ris still
connected.
Befor eyou drive off :
XRemove thecharging cable connecto rfrom th evehicl esocke t
(Ypage 173).
Display messages27 3
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
Ð
Power Steering Mal‐function See Opera‐tor's Manual
The powersteering is malfunctioning .
A warning tone also sounds.
GWARNIN G
You will need to use mor eforce to steer .
There is aris kof an accident.
XChec kwhether you are able to apply th eextr aforce required.
If you ar eabl eto steer safely:
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
If you ar eunable to steer safely:
XDo no tdrive on .
XConsult aqualified specialist workshop .
Phone No ServiceYour vehicleis outside th enetwork provider' stransmitter/receiver
range.
XWait until th emobile phone operational readiness symbol appear s
in th emultifunction display.
¥
Check Washer Fluid
The washer flui dlevel in th ewasher flui dreservoir has dropped belo w
th eminimum .
XAddwasher flui d (Ypage 333).
SmartKey
Display messagesPossible causes/consequences and MSolutions
Â
KeyDoesNotBelongto Vehicl e
You haveput th ewrong SmartKey in th eignition lock.
XUse th ecorrec tSmartKey.
Â
Tak eYou rKey fro mIgnition
The SmartKey is in th eignition lock.
XRemove th eSmartKey.
Â
Obtain aNew Key
The SmartKey needs to be replaced.
XVisit aqualified specialist workshop .
Â
ReplaceKey Batter y
The SmartKey battery is discharged.
XChange thebatterie s (Ypage 84) .
Display messages285
On-board computer and displays
Z

Safety systems
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
éNThe yellow brake system warning lamp lights up while the engine is running or
the ECO start/stop function is activated.
PLUG-IN HYBRID vehicles: the yellow brake system warning lamp is shown in the
READY driving status.
PLUG-IN HYBRID vehicles: the yellow RBS (Recuperative Brake System) warning
lamp is shown in the READY driving status.
GWARNING
The brake system is malfunctioning and the braking characteristics may be affec-
ted.
There is a risk of an accident.
XIf the multifunction display shows a display message, please observe this.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
$JN $ (USA only), J(Canada only): the red brake system warning lamp is lit
while the engine is running.
PLUG-IN HYBRID vehicles: the red brake system warning lamp is shown in the
READY driving status.
A warning tone also sounds.
GWARNING
The brake boosting effect is malfunctioning and the braking characteristics may be
affected.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying attention to road
and traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 177).
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction display.
288Warning and indicator lamps in the instrument cluster
On-board computer and displays

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
$JN$ (USA only), J(Canada only): the red brake system warning lamp is lit
while the engine is running.
PLUG-IN HYBRID vehicles: the red brake system warning lamp is shown in the
READY driving status.
A warning tone also sounds.
There is not enough brake fluid in the brake fluid reservoir.
GWARNING
The braking effect may be impaired.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying attention to road
and traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 177).
XDo not add brake fluid. Adding more will not correct the malfunction.
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction display.
$N USA only: the red brake system warning lamp is lit while the engine is running.
The multifunction display also shows a display message with the #symbol.
The brake pads/linings have reached their wear limit.
XVisit a qualified specialist workshop.
!N The yellow ABS warning lamp is lit while the engine is running.
PLUG-IN HYBRID vehicles: the yellow ABS warning lamp is shown in the READY
driving status.
ABS (anti-lock braking system) is malfunctioning.
If there is an additional warning tone, the EBD (electronic brake force distribution)
is malfunctioning.
Other driving systems and driving safety systems may also be faulty.
GWARNING
The brake system continues to function normally, but without the functions listed
above. The front and rear wheels could therefore lock if you brake hard, for exam-
ple.
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.
XObserve the additional display messages in the multifunction display.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
If the ABS control unit is faulty, there is also a possibility that other systems, such
as the navigation system or the automatic transmission, will not be available.
Warning and indicator lamps in the instrument cluster289
On-board computer and displays
Z

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
$J
÷!N$ (USA only), J(Canada only): the red brake warning lamp and the yellow
ESP®and ABS warning lamps are lit while the engine is running.
PLUG-IN HYBRID vehicles: the red brake warning lamp, yellow ESP®warning lamp
and ABS are shown in the READY driving status.
ABS and ESP
®are malfunctioning.
Other driving systems and driving safety systems may also be faulty.
GWARNING
The brake system continues to function normally, but without the functions listed
above. The front and rear wheels could therefore lock if you brake hard, for exam-
ple.
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.
XObserve the additional display messages in the multifunction display.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
÷N The yellow ESP®warning lamp flashes while the vehicle is in motion.
ESP®or traction control has intervened because there is a risk of skidding or at
least one wheel has started to spin.
Cruise control or DISTRONIC PLUS is deactivated.
XWhen pulling away, only depress the accelerator pedal as far as necessary.
XEase off the accelerator pedal while the vehicle is in motion.
XAdapt your driving style to suit the road and weather conditions.
XDo not deactivate ESP®.
In rare cases it may be better to deactivate ESP®:
Rall vehicles except Mercedes-AMG vehicles (Ypage 74)
RMercedes-AMG vehicles (Ypage 74)
Observe the important safety notes on ESP®(Ypage 73).
290Warning and indicator lamps in the instrument cluster
On-board computer and displays