2015 MERCEDES-BENZ C-CLASS COUPE brake

Display messages
Possible causes/consequences and
M
MSolutions T!
÷
inoperative inoperative See
SeeOwn‐
Own‐
er' sM anual
er' sM anual EB
D( electronic brak eforce distribution), AB Sand ESP ®
are faulty.
Other drivin gand drivin gsafet ysystems may also be faulty.
In addition ,the ÷ and! warning lamp sligh tupint heinstru-
men tcluste rand aw arning tone sounds.
G WARNING
The brak esystem continues to function normally, but without the
function slisted above. The fron tand rear wheels could therefor elock,
for example, if you brak ehard.
The steerabilit yand braking characteristics may be severely affected.
The braking distanc emay increas einanemergenc ybraking situation.
If ESP ®
is no toperational, ESP ®
is unable to stabilis ethe vehicle.
There is an increased danger of skiddin gand ris kofana ccident.
X Drive on carefully.
X Consult aqualified specialist workshop immediately. J
Brake immediately Brake immediately Vehicles wit
hmanual transmission :amalfunction has occurred while
th eH OLDf unction was activated.
At onem ay also soun datregular intervals. If you attemp ttolockt he
vehicle, th etoneb ecome slouder.
You canno tstart th eengine.
X Payin gattention to th etraffic situation ,immediately depress the
brak epedal firmly and hold until th edisplay message disappears.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
You can restar tthe engine. !
Tur
nont he igni‐
Tur nont he igni‐
tion tion to
torelease
release the
the
parkin gbrake
parkin gbrake The red
!indicator lamp lights up.
You attempte dtorelease th eelectric parking brak ewhile th eignition
was switched off.
X Switc hthe ignition on. !
Releas
eparking
Releas eparking
brake brake The red
!indicator lamp flashes and awarning tone sounds. A
condition for automatic release of th eelectric parking brak eisnot
fulfilled (Y page 174).
You are drivin gwitht he electric parking brak eapplied.
X Releas ethe electric parking brak emanually. The red
!indicator lamp flashes and awarning tone sounds.
You are making an emergenc ystopu singthe electric parking brake
(Y page 174). 256
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
M
MSolutions !
Parkin
gbrake See
Parkin gbrake See
Owner' sManual
Owner' sManual The yellow
!warning lamp lights up.
The electric parking brak eismalfunctioning.
To apply:
X Switc hthe ignition off.
X Press th eelectric parking brak elever for at least te nseconds.
X Vehicles wit hmanua ltra nsmission: engage first gear.
X Vehicles wit hautomatic transmission: shift thetransmission to
position P.
X Consult aqualified specialist workshop. The yellow
!warning lamp and th ered ! indicator lamp are lit.
The electric parking brak eismalfunctioning.
To release:
X Switc hthe ignition off and then on again.
X Releas ethe electric parking brak emanually.
or X Releas ethe electric parking brak eautomatically (Y page 174).
If th eelectric parking brak estill canno tbereleased:
X Do no tdrive on.
X Consult aqualified specialist workshop. The red
!indicator lamp flashes and th eyellow !warning lamp
is lit.
The electric parking brak eismalfunctioning.
To release:
X Switc hthe ignition off and then on again.
X Releas ethe electric parking brak emanually.
To apply: X Switc hthe ignition off and then on again.
X Apply th eelectric parking brak emanually.
If th ered ! indicator lamp continues to flash:
X Do no tdrive on.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 362).
X Vehicles wit hmanua ltra nsmission: engage first gear.
X Vehicles wit hautomatic transmission: shift thetransmission to
position P.
X Turn th efront wheels toward sthe kerb.
X Consult aqualified specialist workshop. Display
messages
257On-boardcomputer an ddisplays Z

Display messages
Possible causes/consequences and
M
MSolutions The yellow
!warning lamp lights up. The red !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.
X Switc hthe ignition off and then on again.
X Apply th eelectric parking brake.
If it is no tpossibl etoapply th eelectric parking brake:
X Vehicles wit hmanua ltra nsmission: engage first gear.
X Vehicles wit hautomatic transmission: shift thetransmission to
position P.
X Consult aqualified specialist workshop.
If it is no tpossibl etorelease th eelectric parking brak emanually:
X Releas ethe electric parking brak eautomatically (Y page 174).
If th eelectric parking brak estill canno tbereleased:
X Consult aqualified specialist workshop. The yellow
!warning lamp lights up. If you manually apply or
release th eelectric parking brake, th ered ! indicator lamp
flashes.
The electric parking brak eismalfunctioning .Itisnotpossibl etoapply
th ee lectric parking brak emanually.
X Vehicles wit hmanua ltra nsmission: switch off th eignition.
The electric parking brak eisappliedautomatically.
X Vehicles wit hautomatic transmission: shift thetransmission to
position P,astheelectric parking brak eisnotapplie dautomati-
cally.
X Consult aqualified specialist workshop.
If it is no tpossibl etorelease th eelectric parking brak emanually:
X Releas ethe electric parking brak eautomatically (Y page 174).
If you do no twish th eelectric parking brak etobeapplied, leav ethe
ignition switched on ,e.g.w hen washing th evehicl einana utomatic
car wash or when having th evehicl etow ed. Exception :when having
th ev ehicl etow ed wit hthe rear axl eraised. 258
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
M
MSolutions !
Parkin
gbrake inop‐
Parkin gbrake inop‐
erative erative The yellow
!warning lamp lights up. The red !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.
X Rectify th ecaus eoft heovervoltage or undervoltage, e.g. by charg-
ing th ebattery or restarting th eengine.
X Apply or release th eelectric parking brake.
If th eelectric parking brak estill canno tbeappliedorr eleased:
X Switc hoff th eignition and tur nitbacko n.
X Apply or release th eelectric parking brake.
If th eelectric parking brak estill canno tbereleased:
X Consult aqualified specialist workshop.
If it is still no tpossibl etoapply th eelectric parking brake:
X Consult aqualified specialist workshop. The yellow
!warning lamp lights up and th ered ! indicator
lamp flashes.
It is no tpossibl etoapply th eelectric parking brak emanually.
X Vehicles wit hmanua ltra nsmission: engage first gear.
X Vehicles wit hautomatic transmission: shift thetransmission to
position P.
X Consult aqualified specialist workshop. J
Check brake fluid Check brake fluid
level level There is insufficien
tbrak efluid in th ebrak efluid reservoir.
In addition ,the red J warning lamp lights up in th einstrument
cluste rand aw arning tone sounds.
G WARNING
Braking efficiency may be impaired.
There is ariskofana ccident.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions. Do no tcontinue driving
under any circumstances.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Consult aqualified specialist workshop.
X Do no ttop up th ebrak efluid .This does no tcorrect thef ault. #
Check Check
brake
brakepad
padwear
wear The brak
epads/linings hav ereached their wear limit.
X Consult aqualified specialist workshop. G
Inoperative Inoperative On
eorm orem ain features of th eMercedes-Ben zContac tsystem are
malfunctioning.
X Consult aqualified specialist workshop. Display
messages
259On-boardcomputer an ddisplays Z

Display messages
Possible causes/consequences and
M
MSolutions Collision Preven‐
Collision Preven‐
tio
nA ssist Plus
tio nA ssist Plus
currently unavaila‐ currently unavaila‐
ble ble See
SeeOwner's
Owner's Man‐
Man‐
ual
ual COLLISION PREVENTION ASSIST PLU
Sistemporarily inoperative.
Possibl ecauses:
R ther 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
R thes ystem is outside th eoperating temperature range
R theo n-bo ardv oltag eistoolow.
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.
COLLISION PREVENTION ASSIST PLU Sisoperational again.
If th edisplay message does no tdisappear:
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Restart th eengine. Collision Preven‐
Collision Preven‐
tio
nA ssist Plus
tio nA ssist Plus
inoperative inoperative COLLISION PREVENTION ASSIST PLU
Sistemporarily inoperative due
to am alfunction .Adaptive Brake Assis tmay also hav efailed.
X Consult aqualified specialist workshop immediately. PRE-SAFE inopera‐
PRE-SAFE inopera‐
tiv
eS ee Owner's
tiv eS ee Owner's
Manual Manual Importan
tPRE-SAFE ®
function shavef ailed. Al lother occupant safety
systems ,e.g.a irbags, remain available.
X Consult aqualified specialist workshop immediately. PRE-SAFE Functions
PRE-SAFE Functions
currently limited currently limited
See Owner'
sManual
See Owner' sManual PRE
‑SAFE ®
PLU SorP RE‑SAFE ®
Brake is temporarily inoperative.
Possibl ecauses:
R thef unction is impaire ddue to heav yrain or snow
R ther 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
R Mercedes-AMG vehicles: ESP ®
is deactivated
R thes ystem is outside th eoperating temperature range
R theo n-bo ardv oltag eistoolow.
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.
PRE ‑SAFE ®
PLU Sand PRE ‑SAFE®
Brake are operational again.
If th edisplay message does no tdisappear:
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Restart th eengine.
X Mercedes-AMG vehicles: reactivat eESP®
(Y page 73). 260
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
M
MSolutions PRE-SAFE Functions
PRE-SAFE Functions
limited limited
See
SeeOwner's
Owner's
Manual
Manual PRE
‑SAFE ®
PLU SorP RE‑SAFE ®
Brake is unavailable due to amal-
function .BAS PLU SwithC ross-Traffic Assis tmay also hav efailed.
X Consult aqualified specialist workshop immediately. Radar
Radar
sensors
sensors dirty
dirty
See Owner' sManual
See Owner' sManual At least on
eofthefollowin gdrivin gsystems or drivin gsafet ysystems
is temporarily restricted or inoperative:
R PRE-SAFE ®
PLUS
R PRE-SAFE ®
Brake
R COLLISION PREVENTION ASSIST PLUS
R Active Lan eKeepin gAssist
R Active Blind Spot Assist
R DISTRONI CPLUSw ithS teering Assis tand Stop&Go Pilot
If th eradar sensor system in fron tisdirty, Active Blind Spot Assis twill
no tp erfor mac ourse-correcting brak eapplication.
Possibl ecauses:
R thes ensor sintheradiato rtrima nd/o rinthebumpers are dirty
R thef unction of th edrivin gsystem or drivin gsafet ysystem is
impaire ddue to heav yrain or snow
Aw arning tone also sounds.
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.A lldrivin gsystems or drivin gsafet ysystems are operative
again.
If th edisplay message does no tdisappear:
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Switc hoff th eengine.
X Clean th esensor s(Ypage 330) in th efollowin glocations:
R in th eradiato rtrim
R in th efront bumper
R in th erear bumper, particularly in th emiddle of th erear bumper
X Restart th eengine.
The display message disappears. 6
Restraint sys
.mal‐
Restraint sys .mal‐
function Consult function Consult
workshop workshop The restrain
tsystem is faulty. The 6warning lamp also lights up in
th ei nstrumen tcluster.
G WARNING
The airbags or belt tensioners may either be triggered unintentionally or, in th eevent of an accident, may no tbetriggered.
This poses an increased ris kofinjury.
X Consult aqualified specialist workshop immediately.
Fo rfurther information about th erestrain tsystem, see (Y page 39). Display
messages
261On-boardcomputer an ddisplays Z

Display messages
Possible causes/consequences and
M
MSolutions DISTRONIC PLU
Scur‐
DISTRONIC PLU Scur‐
rently unavailable
rently unavailable
See Owner' sManual
See Owner' sManual DISTRONI
CPLUSist emporarily inoperative.
Steering Assis tand Stop&Go Pilo tare temporarily inoperative.
Possibl ecauses:
R ther 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
R thes ystem is outside th eoperating temperature range
R theo n-bo ardv oltag eistoolow.
Aw arning tone also sounds.
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.
DISTRONI CPLUSiso perational again.
If th edisplay message does no tdisappear:
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Restart th eengine. DISTRONIC DISTRONIC
PLUS
PLUSinop‐
inop‐
erative
erative DISTRONI
CPLUSisf aulty.
The followin gmay hav ealso failed:
R BA SP LUSw ithC ross-Traffic Assist
R PRE-SAFE ®
Brake
R Steering Assis tand Stop&Go Pilot
Aw arning tone also sounds.
X Consult aqualified specialist workshop. DISTRONIC PLU
Ssus‐
DISTRONIC PLU Ssus‐
pended
pended You hav
edepressed th eaccelerato rpedal .DISTR ONICPLUSisno
longer controllin gthe speed of th evehicle.
X Remove your foo tfromt heaccelerato rpedal. DISTRONIC PLUS
DISTRONIC PLUS
---m
ph
---m ph An activation condition for DISTRONI
CPLUSisn otfulfilled.
X Chec kthe activation condition sfor DISTRONI CPLUS(Ypage 184). DISTRONIC PLU
Sand
DISTRONIC PLU Sand
SPEEDTRONIC inoper‐ SPEEDTRONIC inoper‐
ative ative DISTRONI
CPLUSa nd SPEEDTRONI Care faulty. Awarning tone also
sounds.
Steering Assis tand Stop&Go Pilo tare therefor ealso unavailable.
X Consult aqualified specialist workshop. 274
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
M
MSolutions Wheel sensor(s)
Wheel sensor(s)
missing missing There is no signal from th
etyrep ressur esensor of on eorseveral
wheels. The pressur eoftheaffecte dtyreisn otdisplayed in th emul-
tifunction display.
X Hav ethe fault ytyrep ressur esensor replace dataqualified spe-
cialist workshop. Tyre Tyre
press.
press. monitor
monitor
inoperative No
inoperative No
wheel sensors wheel sensors The wheels fitte
ddonothav esuitable tyr epressur esensors. The tyre
pressur emonitor is deactivated.
X Fit wheels wit hsuitable tyr epressur esensors.
The tyr epressur emonitor is activated automatically after drivin gfor
af ew minutes. Tyre
Tyre
press.
press. monitor
monitor
inoperative
inoperative The tyr
epressur emonitor is faulty.
X Consult aqualified specialist workshop. Vehicle
Display messages
Possible causes/consequences and
M
MSolutions To start engine,
To start engine,
shift to either P shift to either P
or N or N You hav
eattempte dtostart th eenginew itht he transmission in posi-
tion Ror D.
X Shift th etransmission to position Por N. Apply
Apply
brake
braketo
todese‐
dese‐
lec tP ark( P) posi‐
lec tP ark( P) posi‐
tion
tion You hav
eattempte dtomovet he transmission selector lever to posi-
tion D,Ror Nwithout depressing th ebrak epedal.
X Depress th ebrak epedal. To shift out of P
To shift out of P
or or
N,
N,depress
depress brake
brake
and start engine
and start engine Wit
hthe engin eswitched off ,you hav eattempte dtoshift th etrans-
mission out of position Por Nint oa nother transmission position.
X Depress th ebrak epedal.
X Start th eengine. Ris
kofv ehicle
Ris kofv ehicle
rollin gTransmis‐
rollin gTransmis‐
sio nn ot in P
sio nn ot in P The driver's door is open or no
tfully closed and th etransmission is in
position R,Nor D.
Aw arning tone also sounds.
G WARNING
The vehicl emay rol laway.
There is ariskofana ccident.
X Shift th etransmission to position P.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Clos ethe driver's door fully. Onl
ys elect Park
Onl ys elect Park
(P)
(P) when
when vehicle
vehicle is
is
stationary
stationary The vehicl
eismoving.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Shift th etransmission to position P. Display
messages
279On-boardcomputer an ddisplays Z