2015 MERCEDES-BENZ C-CLASS COUPE wheel

Display messages
Introduction
General notes Display messages appear in th
emultifunction display.
Display messages wit hgraphi csymbols are simplified in th eOwner' sManual and may diffe rfrom
th es ymbols in th emultifunction display.
Please respon dinaccordance wit hthe display messages and follow th eadditional note sinthis
Owner' sManual.
Wit hcertai ndisplay messages, you will also hear awarnin gtone.
You can hide th edisplay messages. The display messages are then stored in th emessag ememory.
Rectify th ecause of adisplay messag eassoonasp ossible.
Whe nyou stop and par kthe vehicle, please observ ethe note son:
R HOLD function (Y page 192)
R Parking (Y page 172)
Hiding display messages X
Press the aor% buttonont hesteerin gwheel.
The multifunction display hide sthe display message.
High-priorit ydisplay messages are shown in red in th emultifunction display. Some high-priority
display messages canno tbehidden.
The multifunction display shows these messages continuously until th ecauses fo rthe messages
hav ebeenr emedied.
Message memory The on-boar
dcom pute rsaves certain display messages in the message memory.You can cal lup
th ed isplay messages:
X Press òon thesteerin gwhee ltoo pent he men ulist.
X Press :or9 on thesteerin gwhee ltos elec tthe Service Service menu.
X Confir mbyp ressing aon thesteerin gwheel.
X Press :or9 to selec tthe messag ememory.
If there are no display messages, the No messages
No messages display appears in th emultifunction display.
Whe nthere are display messages, th enumber of stored messages appears.
X Press ato confirm.
X Press :or9 to scroll through th edisplay messages. Display
messages
253On-boardcomputer an ddisplays Z

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 !
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 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

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

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