2015 MERCEDES-BENZ C-CLASS COUPE ESP inoperative

Safety systems
Display messages
Possible causes/consequences and
M
MSolutions !÷
currently unavaila‐
currently unavaila‐
ble ble See
SeeOwner's
Owner's Man‐
Man‐
ual
ual ABS (Anti-lock Braking System) and ESP
®
(Electronic Stability Pro-
gram) are temporarily unavailable.
Other driving 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.
G WARNING
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 may increase in an emergency braking situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Drive on carefully.
Carefull ydrive on asuitable stretch of road, making slight steering
movement sataspeed above 20 km/h.
If the display message disappears, the functions mentioned above
are available again.
If the multifunction display still shows the display message: X Drive on carefully.
X Consult aqualified specialist workshop immediately. !÷
inoperative inoperative See SeeOwn‐
Own‐
er's Manual
er's Manual ABS and ESP
®
are faulty.
Other driving and driving safety systems may also be faulty.
In addition, the J,÷and! warning lamps may light up in
the instrumen tcluster.
G WARNING
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 may increase in an emergency braking situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Drive on carefully.
X Consult aqualified specialist workshop immediately. 254
Display messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions ÷
inoperative inoperative
See
SeeOwn‐
Own‐
er' sM anual
er' sM anual ESP
®
is faulty.
Other drivin gand drivin gsafet ysystems may also be faulty.
The ÷ warning lamp also lights up in th einstrumen tcluster.
G WARNING
The brak esystem continues to function normally, but without the
function slisted above.
The braking distanc emay thus increas einanemergenc ybraking sit-
uation.
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. ÷
currently unavaila‐ currently unavaila‐
ble ble
See
SeeOwner's
Owner's Man‐
Man‐
ual
ual ESP
®
is temporarily unavailable.
Other drivin gand drivin gsafet ysystems may also be faulty.
The ÷ warning lamp also lights up in th einstrumen tcluster.
The self-diagnosis function ,for example, may no tbecomplete.
G WARNING
The brak esystem continues to function normally, but without the
function slisted above. The wheels could therefor eloc kify ou brake
hard, for example.
The braking distanc emay thus increas einanemergenc ybraking sit-
uation.
If ESP ®
is no toperational, ESP ®
is unable to stabilis ethe vehicle.
There is an increased danger of skiddin gand ris kofana ccident.
X Carefully drive on asuitable stretch of road, making slight steering
movement sataspeed abov e20km/h.
If th edisplay message disappears, th efunction smentioned above
are available again.
If th emultifunction display still shows th edisplay message:
X Drive on carefully.
X Consult aqualified specialist workshop immediately. Display
messages
255On-boardcomputer an ddisplays Z

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 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 Further information on th
eautomatic front-passenger fron tairbag
deactivation feature (Y page 47).Lights
Display messages
Possible causes/consequences and
M
MSolutions b
Lef
td ipped beam
Lef td ipped beam
(Example) The correspondin
gbulb is faulty.
X Consult aqualified specialist workshop.
or X Chec kwhether you are permitte dtoreplace th ebulb yourself
(Y page 123).
i LE
Dl igh tbulbs :the display message for th ecorre spondin glamp
only appear swhen all th eLEDsint helamp hav efailed. b
Active Active
Light
LightSystem
System
inoperative
inoperative The active ligh
tfunction is faulty.
X Consult aqualified specialist workshop. b
Intell
.Light Sys‐
Intell .Light Sys‐
tem inoperative tem inoperative The Intelligent Light Syste
misfaulty. The lighting system continues to
function properly without th efunction softheIntelligent Light System.
X Consult aqualified specialist workshop. b
Malfunction Malfunction
See
SeeOwn‐
Own‐
er' sM anual
er' sM anual The exterio
rlighting is faulty.
X Consult aqualified specialist workshop. Vehicles wit
htrailer to whitch :af usem ay hav eblown.
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 Chec kthe fuses (Y page 350).
X If necessary, replace th eblown fuse. Observ ethe warning note sas
you do so.
If th edisplay message continues to be displayed:
X Consult aqualified specialist workshop. b
AUT
Ol ights inoper‐
AUT Ol ights inoper‐
ative ative The ligh
tsensor is faulty.
X Consult aqualified specialist workshop. b
Switch off lights Switch off lights You are leaving th
evehicl eand th elights are switched on .Awarning
tone also sounds.
X Turn th eligh tswitch to the Ãposition. Display
messages
265On-boardcomputer an ddisplays Z

Display messages
Possible causes/consequences and
M
MSolutions Blind Spo
tAssist
Blind Spo tAssist
currently unavaila‐
currently unavaila‐
ble ble See
SeeOwner's
Owner's Man‐
Man‐
ual
ual orActive Blind
Active Blind
Spo tA ssist cur‐
Spo tA ssist cur‐
rently unavailable
rently unavailable
See Owner' sManual
See Owner' sManual Blind Spot Assis
torActiveBlind Spot Assis tistemporarily inoperative.
Possibl ecauses:
R ther adar sensor system is outside th eoperating temperature range
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
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.
Blind Spot Assis torActiveBlind Spot Assis tisoperational 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. Blind Spo
tAssist
Blind Spo tAssist
not available when not available when
towing atrailer
towing atrailer
See Owner' sManual
See Owner' sManual
or Active Blind Active Blind
Spo tA ssist not
Spo tA ssist not
available whe ntow‐
available whe ntow‐
ing atraile rSee
ing atraile rSee
Owner' sManual
Owner' sManual Blind Spot Assis
torActiveBlind Spot Assis tisdeactivated while tow-
ing atrailer.
You hav eestablished th eelectrical connection between th etrailer and
your vehicle.
X Press aon thesteering whee ltoc onfir mthedisplay message. Blind Spo
tAssist
Blind Spo tAssist
inoperative
inoperative or
Active Blind Spot Active Blind Spot
Assist inoperative Assist inoperative Blind Spot Assis
torActiveBlind Spot Assis tisfaulty.
X Consult aqualified specialist workshop. Par
kA ssist cancel‐
Par kA ssist cancel‐
led
led The driver's door is open.
X Repeat th eparking gap measuremen tand parking process wit hthe
driver's door closed. You touched th
emultifunction steering whee lwhile steering inter-
vention was active.
X Whil esteering intervention is active ,makes uren otto touch the
multifunction steering wheel. The vehicl
ehas started to skid and ESP ®
has intervened.
X Use Active Parking Assis tagain later (Y page 201). Par
kA ssist inoper‐
Par kA ssist inoper‐
ative
ative PARKTRONI
Cismalfunctioning or faulty.
X Follow th einstruction sand helpful hints in th e"Problem swith
PARKTRONIC" section (Y page 201).
If th emultifunction display still shows th edisplay message:
X Consult aqualified specialist workshop. 272
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
M
MSolutions DTR+: steering
DTR+: steering
assist
.currently
assist .currently
unavailable unavailable See
SeeOwn‐
Own‐
er' sM anual
er' sM anual Steering Assis
tand Stop&Go Pilo tare temporarily inoperative.
Possibl ecauses:
R thew indscree nisdirty in th ecamera' sfield of vision
R visibilit yisimpaire ddue to heav yrain ,sno worf og
R there are no lan emarking sfor alon gore xtende dperiod
R thel an em arking sare worn, dark or covered, e.g. by dir torsnow
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.
Steering Assis tand Stop&Go Pilo tare 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 Clean th ewindscreen. DTR+: steering
DTR+: steering
assistant inopera‐ assistant inopera‐
tive tive Steering Assis
tand Stop&Go Pilo tare faulty.
However, th eDISTR ONICPLUSfunction sare still available.
Aw arning tone also sounds.
X Consult aqualified specialist workshop. Cruise contro
land
Cruise contro land
SPEEDTRONIC inoper‐
SPEEDTRONIC inoper‐
ative ative SPEEDTRONI
Cand cruise control are malfunctioning.
Aw arning tone also sounds.
X Consult aqualified specialist workshop. SPEEDTRONIC suspen‐
SPEEDTRONIC suspen‐
ded ded Whe
nyou depress th eaccelerato rpedal beyon dthe pressur epoint
(kickdown), SPEEDTRONI Cisswitched to passive mode.
The speed limitation is no tactive.
X Drive slower than th estoreds peed without kickdown.
or X Se tan ewspeed.
or X Call up th elast speed store dagain.
Whe nthe display message disappears, th espeed limitation is active. SPEEDTRONIC Limit
SPEEDTRONIC Limit
---m
ph
---m ph SPEEDTRONI
Ccanno tbea ctivated, as th eactivation condition shave
no ta ll been met.
X Chec kthe activation condition sfor SPEEDTRONI C(Ypage 182). Display
messages
275On-boardcomputer an ddisplays Z

Tyres
Display messages
Possible causes/consequence
sand M
MSolutions Tyre
Tyre
pressure
pressure Check
Check
tyres
tyres The tyr
epressure loss warning system ha sdetecte das ignificant loss
in pressure.
Aw arning tone also sounds.
Possibl ecauses:
R youh avec hange dthe positions of the wheels and tyres or fitte dnew
wheels and tyres
R the tyr epressure in one or mor etyres ha sdropped
G WARNING
Underinflated tyres pose the following risks:
R the tyres ma yburst, especially as the load and vehicl espeed
increase
R the tyres ma yweare xcessivel yand/or unevenly, which ma ygreatly
impai rtyret raction
R the drivin gcharacteristics, as well as steerin gand braking ,maybe
greatl yimpaired
There is ariskofana ccident.
X Stop the vehicl ewithou tmaking any sudden steerin gorbraking
manoeuvres .Pay attentio ntothe traffi cconditions as yo udoso.
X Safeguard the vehicl eagain st rolling away (Y page 172).
X Check the tyres and ,ifnecessary ,follo wthe instructions for aflat
tyr e(Ypage 337).
X Check the tyr epressures and ,ifnecessary ,correct the tyr epres-
sure.
X Restart the tyr epressure loss warning system when the tyr epres-
sure is correct (Y page 358). Check tyr
epres‐
Check tyr epres‐
sures the nrestart
sures the nrestart
Run Fla tIndicator
Run Fla tIndicator The tyr
epressure loss warning system generated adisplay message
and ha snot been restarted since.
X Set the correct tyr epressure in al lfou rtyres.
X Restart the tyr epressure loss warning system (Y page 358).Run Fla
tIndicator
Run Fla tIndicator
inoperative
inoperative The tyr
epressure loss warning system is faulty.
X Consult aquali fied specialis tworkshop. Rectif
ytyrep res‐
Rectif ytyrep res‐
sure
sure The tyr
epressure is too lo winatleastone of the tyres, or the tyre
pressure differenc ebetween the wheels is too great.
X Check the tyr epressures at the next opportunity (Y page 359).
X If necessary ,correct the tyr epressure.
X Restart the tyr epressure monitor (Y page 360). Displa
ymessages
277On-boardcomputer an ddisplays Z