2015 MERCEDES-BENZ C-CLASS COUPE Owners Manual

Display messages
Possible causes/consequences and
M
MSolutions Refill AdBlue Eng.
Refill AdBlue Eng.
start not possible start not possible
The AdBlue
®
tan kise mpty. Awarning tone also sounds. You can no
longer start th eengine.
X Ad datl east 3. 5lofA dBlue ®
(Y page 169).
X Turn th eignition on for approximately on eminute.
The system require sapproximately on eminute after refillin gto
detec tthe chang eintheAdBlue ®
level.
X Start th eengine. Check AdBlue See
Check AdBlue See
Owner’
sManual
Owner’ sManual The AdBlue
®
system is malfunctioning .Awarning tone also sounds.
X Consult aqualified specialist workshop. Eng
.s tart not pos‐
Eng .s tart not pos‐
sible in ... mi sible in ... mi The AdBlue
®
system is malfunctioning .Awarning tone also sounds.
X Consult aqualified specialist workshop immediately. Eng
.s tart not pos‐
Eng .s tart not pos‐
sible
sible The AdBlue
®
system is malfunctioning .Awarning tone also sounds.
You can no longer start th eengine.
X Consult aqualified specialist workshop immediately. Driving systems
Display messages
Possible causes/consequences and
M
MSolutions À
ATTENTION ASSIST: ATTENTION ASSIST:
Tak
eab reak!
Tak eab reak! Based on certain criteria, ATTENTION ASSIST has detecte
dfatigue or
al ack of concentration on th epart of th edriver .Aw arning tone also
sounds.
X If necessary, tak eabreak.
During lon gjou rneys, tak eregular breaks in goo dtimesot hatyou get
enough rest. À
ATTENTION ASSIST ATTENTION ASSIST
inoperative inoperative ATTENTION ASSIST is inoperative.
X Consult aqualified specialist workshop. ¨
Vehicl
erising
Vehicl erising Your vehicl
eisadjusting to th elevel you hav eselected. ¨
Vehicl
erising
Vehicl erising
Please wait Please wait The vehicl
elevel is to olow when th evehicl eiss tationary. Awarning
tone also sounds.
X Do no tpull away.
The vehicl elevel is set when th edisplay message disappears. 270
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
M
MSolutions ¨
Sto
pv ehicl eVehi‐
Sto pv ehicl eVehi‐
cle too low cle too low You hav
epulled away while th evehicl elevel is still to olow.
AIRMATIC set sthe vehicl etotheselected level after ashort period.
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 Wait until th edisplay message disappear sbefore pullin gaway. AIRMATIC is faulty.
Awarning tone also sounds.
X Do no tdrive at speeds abov e80km/h.
X Mak eonlys light steering movements. Otherwise ,the fron twings or
th et yres could be damaged if th esteering movement is to ogreat.
X Liste nfor scraping sounds.
X Pull ove rand stop th evehicl esafely, payin gattention to roa dand
traffic conditions, and set ahigher vehicl elevel.
Dependin gonthemalfunction ,itmay be possibl etoraisethe vehi-
cle.
X Consult aqualified specialist workshop. ¨
Malfunction Malfunction The AIRMATIC function is restricted. The vehicle's handlin
gcharac-
teristics may be affected.
X Do no tdrive at speeds abov e80km/h.
X Consult aqualified specialist workshop. Lane
Lane
Keeping
Keeping Assist
Assist
currently unavaila‐
currently unavaila‐
ble ble See
SeeOwner's
Owner's Man‐
Man‐
ual
ual orActive Lane
Active Lane
Keepin gAssist cur‐
Keepin gAssist cur‐
rently unavailable
rently unavailable
See Owner' sManual
See Owner' sManual Lan
eKeepin gAssistorA ctiveLaneK eepin gAssistisd eactivated and
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 hav ebeen no lan emarking sfor an extended period
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.
Lan eKeepin gAssistorA ctiveLaneK eepin gAssistiso 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 Clean th ewindscreen. Lane Lane
Keeping
Keeping Assist
Assist
inoperative
inoperative or
Active
Active Lane
Lane Keeping
Keeping
Assist inoperative
Assist inoperative Lan
eKeepin gAssistorA ctiveLaneK eepin gAssistisf aulty.
X Consult aqualified specialist workshop. Display
messages
271On-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 Active Parking Assis
tisunavailable or faulty.
X Switc hoff th eignition and restar tthe engine.
If Active Parking Assis tcontinue stobeu navailable (the jsymbol
does no tappear in th emultifunction display):
X Consult aqualified specialist workshop. Par
kA ssist
Par kA ssist
switched off
switched off The vehicl
eisparked. Awarning tone also sounds.
The display message disappear sautomatically. Traffic
Traffic
Sign
SignAssist
Assist
currently unavaila‐
currently unavaila‐
ble ble See
SeeOwner's
Owner's Man‐
Man‐
ual
ual Traffic Sig
nAssistist emporarily inoperative.
Possibl ecauses:
R thew indscree nisdirty in th ecamera' sfield of vision
R visibilit yisimpaire ddue to heav yrain ,sno worf og
X Clean th ewindscreen.
If th esystem detects that th ecamera is full yoperational, th edisplay
message disappears.
Traffic Sig nAssistiso perational again. Traffic Traffic
Sign
SignAssist
Assist
inoperative
inoperative Traffic Sig
nAssistisf aulty.
X Consult aqualified specialist workshop. ë
Off Off The HOLD function is deactivated. The vehicl
eisskidding.
Aw arning tone also sounds.
X Reactivat ethe HOLD function later (Y page 192). The HOLD function is deactivated. Whe
nthe brak epedal is firmly
depressed, an activation condition is no tfulfilled.
Aw arning tone also sounds.
X Chec kthe activation condition sfor th eHOLDf unction
(Y page 192). DISTRONIC PLU
Soff
DISTRONIC PLU Soff DISTRONI
CPLUSh as been deactivated (Y page 184).
If it was no tdeactivated by th edriver ,aw arning tone also sounds. DISTRONIC PLUS
DISTRONIC PLUS
available again available again DISTRONI
CPLUSiso perational again after having been temporarily
unavailable .You can no wreactivat eDISTR ONICPLUS(Ypage 184). Display
messages
273On-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 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

Display messages
Possible causes/consequences and
M
MSolutions Cruise control
Cruise control
---m
ph
---m ph R
Ac onditi on for activating cruise control has no tbeen met.
You hav etried to store aspeed belo w30km/h, for example.
R ESP ®
is deactivated The yello wESP®
OF Fw arning lamp is lit.
X If condition spermit ,drive faste rtha n3 0km/ hand store th espeed.
or X Chec kthe activation condition sfor cruise control (Y page 180).
or
X Reactivat eESP®
.
R all vehicles except Mercedes-AMG vehicles (Y page 72)
R Mercedes-AMG vehicles (Y page 73)Cruise contro
loff
Cruise contro loff Cruis
econtro lhas been deactivated.
If aw arning tone also sounds, cruise control has deactivated auto-
matically (Y page 180). 120 km/h! 120 km/h!
Maximum Maximum
speed
speedexcee‐
excee‐
ded
ded Only for certain countries: th
emaximum speed has been exceeded.
In addition ,the multifunction display shows 120 km/h!
120 km/h!.
X Drive mor eslowly. 276
Display
messagesOn-boardcomputer an ddisplays

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