2016 MERCEDES-BENZ C-CLASS CABRIOLET display

Display messages
Possible causes/consequences and
M
MSolutions Active Parking Assist is unavailable or malfunctioning.
X Switch off the ignition and restart the engine.
If Active Parking Assist continues to be unavailable (the jsymbol
does not appear on the multifunction display):
X Consult a qualified specialist workshop. Park Assist
Park Assist
switched off switched off The vehicle is parked. A warning tone also sounds.
The display message disappears automatically. Traffic
Traffic
Sign
SignAssist
Assist
currently unavaila‐
currently unavaila‐
ble ble See
SeeOwner's
Owner's Man‐
Man‐
ual
ual Traffic Sign Assist is temporarily inoperative.
Possible causes:
R The windscreen is dirty in the camera's field of vision
R Visibility is impaired due to heavy rain, snow or fog
X Clean the windscreen.
If the system detects that the camera is fully operational, the display message disappears.
Traffic Sign Assist is operational again. Traffic Traffic
Sign
SignAssist
Assist
inoperative
inoperative Traffic Sign Assist is faulty.
X Consult a qualified specialist workshop. ë
Off Off The HOLD function is deactivated. The vehicle has started to skid.
A warning tone also sounds.
X Reactivate the HOLD function later (Y page 180). The HOLD function is deactivated. When the brake pedal is firmly
depressed, an activation condition is no longer fulfilled.
A warning tone also sounds.
X Check the activation conditions for the HOLD function
(Y page 180). DISTRONIC PLUS off DISTRONIC PLUS off DISTRONIC PLUS has been deactivated (Y
page 171).
If it was not deactivated by the driver, a warning tone also sounds. DISTRONIC PLUS
DISTRONIC PLUS
available again available again DISTRONIC PLUS is operational again after having been temporarily
unavailable. You can now reactivate DISTRONIC PLUS (Y
page 171). Display
messages
261On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions DISTRONIC PLUS cur‐
DISTRONIC PLUS cur‐
rently unavailable rently unavailable
See Owner's Manual See Owner's Manual DISTRONIC PLUS is temporarily inoperative.
Steering Assist and Stop&Go Pilot are also temporarily inoperative.
Possible causes:
R The radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio stations or other sources of electromagnetic radiation
R The system is outside the operating temperature range
R The on-board voltage is too low.
A warning tone also sounds.
Once the causes listed above no longer apply, the display message
disappears.
DISTRONIC PLUS is operational again.
If the display message does not disappear:
X Stop the vehicle, paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 159).
X Restart the engine. DISTRONIC DISTRONIC
PLUS
PLUSinop‐
inop‐
erative
erative DISTRONIC PLUS is malfunctioning.
The following may have also failed:
R BAS PLUS with Cross-Traffic Assist
R PRE-SAFE ®
Brake
R Steering Assist and Stop&Go Pilot
A warning tone also sounds.
X Consult a qualified specialist workshop. DISTRONIC PLUS sus‐ DISTRONIC PLUS sus‐
pended pended You have depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the speed of the vehicle.
X Remove your foot from the accelerator pedal. DISTRONIC PLUS
DISTRONIC PLUS
- - - mph - - - mph An activation condition for DISTRONIC PLUS is not fulfilled.
X Check the activation conditions for DISTRONIC PLUS (Y page 171).DISTRONIC PLUS and
DISTRONIC PLUS and
SPEEDTRONIC inoper‐ SPEEDTRONIC inoper‐
ative ative DISTRONIC PLUS and SPEEDTRONIC are faulty. A warning tone also
sounds.
Steering Assist and Stop&Go Pilot are therefore also unavailable.
X Consult a qualified specialist workshop. 262
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions DTR+: steering
DTR+: steering
assist. currently assist. currently
unavailable unavailable
See
SeeOwn‐
Own‐
er's Manual
er's Manual Steering Assist and Stop&Go Pilot are temporarily inoperative.
Possible causes:
R The windscreen is dirty in the camera's field of vision
R Visibility is impaired due to heavy rain, snow or fog
R There are no lane markings for an extended period
R The lane markings are worn, dark or covered, e.g. by dirt or snow
Once the causes listed above no longer apply, the display message
disappears.
Steering Assist and Stop&Go Pilot are operational again.
If the display message does not disappear:
X Stop the vehicle, paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 159).
X Clean the windscreen. DTR+: steering DTR+: steering
assistant inopera‐ assistant inopera‐
tive tive Steering Assist and Stop&Go Pilot are faulty.
However, the DISTRONIC PLUS functions are still available.
A warning tone also sounds.
X Consult a qualified specialist workshop. Cruise control and Cruise control and
SPEEDTRONIC inoper‐ SPEEDTRONIC inoper‐
ative ative SPEEDTRONIC and cruise control are faulty.
A warning tone also sounds.
X Consult a qualified specialist workshop. Speed Speed
limit
limit(winter
(winter
tyres) XXX mph
tyres) XXX mph You have reached the stored speed limit for winter tyres. It is not
possible to exceed this speed. You can suppress the display message
by pressing the abutton. The display message will not reappear
until the ignition has been switched on again. SPEEDTRONIC suspen‐ SPEEDTRONIC suspen‐
ded ded When you depress the accelerator pedal beyond the pressure point
(kickdown), SPEEDTRONIC is switched to passive mode.
The speed limitation is not active.
X Drive more slowly than the stored speed without kickdown.
or X Set a new speed.
or X Call up the last speed stored again.
When the display message disappears, the speed limitation is active. SPEEDTRONIC Limit SPEEDTRONIC Limit
- - - mph - - - mph SPEEDTRONIC cannot be activated, as not all the activation conditions
have been met.
X Check the activation conditions for SPEEDTRONIC (Y page 169). Display
messages
263On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions Cruise control
Cruise control
- - - mph - - - mph R
A condition for activating cruise control has not been met
You have tried to store a speed below 30 km/h, for example
R ESP ®
is deactivated The yellow ESP ®
OFF warning lamp is lit
X If conditions permit, drive at a speed greater than 30 km/h and
store the speed.
or X Check the activation conditions for cruise control (Y page 167).
or
X Reactivate ESP ®
(Y page 232).
or
X Reactivate ESP ®
in Mercedes-AMG vehicles (Y page 74).Cruise control off Cruise control off Cruise control has been deactivated.
If a warning tone also sounds, cruise control has deactivated auto-
matically (Y page 167). ð
Maximum Maximum
speed
speedexcee‐
excee‐
ded
ded For certain countries only: the maximum speed has been exceeded.
X Drive more slowly. 264
Display
messagesOn-board computer and displays

Tyres
Display messages
Possible causes/consequences and
M
MSolutions Tyre
Tyre
pressure
pressure Check
Check
tyres
tyres The tyre pressure loss warning system has detected a significant loss
in pressure.
A warning tone also sounds.
Possible causes:
R you have changed the positions of the wheels and tyres or fitted new
wheels and tyres
R the tyre pressure in one or more tyres has dropped
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed
increase
R the tyres may wear excessively and/or unevenly, which may greatly
impair tyre traction
R the driving characteristics, as well as steering and braking, may be
greatly impaired
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 159).
X Check the tyres and, if necessary, follow the instructions for a flat
tyre (Y page 326).
X Check the tyre pressures and, if necessary, correct the tyre pres-
sure.
X Restart the tyre pressure loss warning system when the tyre pres-
sure is correct (Y page 347). Check tyre pres‐ Check tyre pres‐
sures then restart sures then restart
Run Flat Indicator Run Flat Indicator The tyre pressure loss warning system generated a display message
and has not been restarted since.
X Set the correct tyre pressure in all four tyres.
X Restart the tyre pressure loss warning system (Y page 347).Run Flat Indicator Run Flat Indicator
inoperative inoperative The tyre pressure loss warning system is faulty.
X Consult a qualified specialist workshop. Rectify tyre pres‐
Rectify tyre pres‐
sure sure The tyre pressure is too low in at least one of the tyres, or the tyre
pressure difference between the wheels is too great.
X Check the tyre pressures at the next opportunity (Y page 348).
X If necessary, correct the tyre pressure.
X Restart the tyre pressure monitor (Y page 349). Display
messages
265On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions Check tyre(s)
Check tyre(s) The tyre pressure in one or more tyres has dropped significantly. The
wheel position is displayed on the multifunction display.
A warning tone also sounds.
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed
increase
R the tyres may wear excessively and/or unevenly, which may greatly
impair tyre traction
R the driving characteristics, as well as steering and braking, may be
greatly impaired
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 159).
X Check the tyres and, if necessary, follow the instructions for a flat
tyre (Y page 326).
X Check the tyre pressure (Y page 348).
X If necessary, correct the tyre pressure. Warning tyre defect Warning tyre defect The tyre pressure in one or more tyres has dropped suddenly. The
wheel position is displayed on the multifunction display.
G WARNING
If you drive with a flat tyre, there is a risk of the following hazards: R a flat tyre affects the ability to steer or brake the vehicle
R you could lose control of the vehicle
R continued driving with a flat tyre will cause excessive heat build-up
and possibly a fire
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 159).
X Check the tyres and, if necessary, follow the instructions for a flat
tyre (Y page 326). Tyre Tyre
press.
press. monitor
monitor
currently unavaila‐
currently unavaila‐
ble ble No signals can be received from the tyre pressure sensors due to
strong RF interference. The tyre pressure monitor is temporarily mal-
functioning.
X Drive on.
The tyre pressure monitor restarts automatically as soon as the
cause has been rectified. 266
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Wheel sensor(s)
Wheel sensor(s)
missing missing There is no signal from the tyre pressure sensor of one or several
wheels. The pressure of the affected tyre is not displayed on the mul-
tifunction display.
X
Have the faulty tyre pressure sensor replaced at a qualified spe-
cialist workshop. Tyre Tyre
press.
press. monitor
monitor
inoperative No
inoperative No
wheel sensors wheel sensors The wheels fitted do not have suitable tyre pressure sensors. The tyre
pressure monitor is deactivated.
X Fit wheels with suitable tyre pressure sensors.
The tyre pressure monitor is activated automatically after driving for
a few minutes. Tyre Tyre
press.
press. monitor
monitor
inoperative
inoperative The tyre pressure monitor is faulty.
X Consult a qualified 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 have attempted to start the engine with the transmission in posi-
tion Ror D.
X Shift the transmission to position Por N. Apply
Apply
brake
braketo
todese‐
dese‐
lect Park (P) posi‐
lect Park (P) posi‐
tion tion You have attempted to shift the transmission to position
D,Ror N
without depressing the brake pedal.
X Depress the brake pedal. To shift out of P
To shift out of P
or or
N,
N,depress
depress brake
brake
and start engine
and start engine With the engine switched off, you have attempted to shift the trans-
mission out of position Por Ninto another transmission position.
X Depress the brake pedal.
X Start the engine. Risk of vehicle
Risk of vehicle
rolling Transmis‐ rolling Transmis‐
sion not in P sion not in P The driver's door is open or not fully closed and the transmission is in
position R,Nor D.
A warning tone also sounds.
G WARNING
The vehicle may roll away.
There is a risk of an accident.
X Shift the transmission to position P.
X Secure the vehicle against rolling away (Y page 159).
X Close the driver's door fully. Only select Park
Only select Park
(P) (P)
when
when vehicle
vehicle is
is
stationary
stationary The vehicle is moving.
X
Stop the vehicle, paying attention to road and traffic conditions.
X Shift the transmission to position P. Display
messages
267On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions Without changing
Without changing
gear, consult work‐ gear, consult work‐
shop shop You cannot change the transmission position due to a malfunction.
A warning tone also sounds.
If transmission position
Dis selected:
X Drive to a qualified specialist workshop without shifting the trans-
mission from position D.
If transmission position R,Nor Pis selected:
X Secure the vehicle against rolling away (Y page 159).
X Consult a qualified specialist workshop. Reversing Reversing
not
not poss.
poss.
Consult workshop
Consult workshop You can no longer shift to transmission position
Rdue to a malfunc-
tion.
The transmission positions P,Nor Dcontinue to be available.
A warning tone also sounds.
X Consult a qualified specialist workshop. Transmission Mal‐ Transmission Mal‐
function Stop function Stop A malfunction has occurred in the mechanical transmission compo-
nents.
A warning tone also sounds. The transmission shifts automatically to position N.
X Stop the vehicle, paying attention to road and traffic conditions.
X Shift the transmission to position P.
X Secure the vehicle against rolling away (Y page 159).
X Consult a qualified specialist workshop. Stop vehicle Leave Stop vehicle Leave
engine engine
running
running Wait
Wait
Transmission cool‐
Transmission cool‐
ing ing The transmission has overheated. Pulling away can be temporarily
impaired or not possible.
X Stop the vehicle safely as soon as possible, paying attention to road
and traffic conditions. Do not continue driving.
X Leave the engine running.
X Wait until the display message disappears before pulling away. Depress clutch
Depress clutch
fully to start fully to start
engine engine You have attempted to start the engine without depressing the clutch
pedal.
X Depress the clutch pedal.
X Restart the engine. The engine has stalled while pulling away, e.g. because the clutch
pedal was released too quickly.
X Depress the clutch pedal again.
The engine starts automatically.
X Slowly release the clutch pedal to pull away. 268
Display
messagesOn-board computer and displays