light MERCEDES-BENZ C-CLASS CABRIOLET 2018 Owners Manual

The proportion of cor
rosion inhibitor/antifreeze
concentrate in the engine cooling sy stem should
be:
R a minimum of 50% (antifreeze pr otection
down toappr oximately -37 °C)
R a maximum of 55% (antifreeze pr otection
down to-45 °C) Note
s on windscreen washer fluid Obser
vethe no tes on operating fluids
(0013 page 458). 000A
WARNING ‑ Risk of fire and injury due to
windscreen washer concentrate
Wi ndsc reen washer concentrate is highly
fl ammable. It could ignite if it comes into
con tact wi thhot engine component parts or
th eex haust sy stem. 0007
Make sure that no windsc reen washer
concentrate spills out next tothefiller
opening. 000E
NO
TEDama getotheex terior lighting
due tounsuitable windsc reen washer
fl uid Uns
uitable windsc reen washer fluids may
damage the plastic sur face of theex terior
lighting. 0007
Only use windscreen washer fluids
which are also suitable for use on plas‐
tic sur faces, e.g. MB SummerFit or MB
Wi nterFit. 000E
NO
TEBlocked spr aynozzles caused by
mixing windscreen washer fluids 0007
Do not mix MB SummerFit and MB Win‐
te rFit with other windscreen washer flu‐
ids. Do not use distilled or de-ionised
water asthefill
le ve l sensor may be triggered er roneously.
Re commended windscreen washer fluid:
R Abo vefreezing point: e.g. MB SummerFit
R Below freezing point: e.g. MB WinterFit Fo
rth e cor rect mixing ratio, referto the informa‐
tion on the antif reeze conta iner.
Mix thewa sher fluid with the windscreen washer
fl uid all year round. Ve
hicle data Ve
hicle dimensions The heights speci
fied may vary as a result of the
fo llowing factors:
R tyres
R load
R condition of the suspension
R optional equipment Te
ch nical da ta467

Saf
ety sy stems Display messages
Possible causes/consequences and 0050
0050Solutions
00E5 currently unavailable See
Owner's Manual *
ESP ®
is temp orarily una vailable.
Other drive sy stems and driving saf ety sy stems may also be malfunctioning. 000A
WARNING Risk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabilisation. In addition, other driving saf ety sy stems
are switched off. 0007
Drive on carefull y. 0007
Have ESP ®
ch ecked at a qualified specialist workshop. 0007
Carefully drive on a suitable stre tch of road, making slight steering mo vements at a speed abo ve30 km/h. 0007
Ifth e display message does not disappear, consult a qualified specialist workshop immediately. Drive carefully.
Brake immediately *
Ve hicles with manual transmission: a malfunction has occurred while the HOLD function was activated.
A tone may also sound at regular inter vals. If you attem pttolock theve hicle, theto ne will become louder.
Yo u cannot start the engine. 0007
Immediately depress the brake pedal firm lyuntil the display message disappears.
Yo u can restart the engine. 472
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Carefully drive on a suitable stre tch of road, making slight steering mo vements at a speed abo ve30 km/h. 0007
Ifth e display message does not disappear, consult a qualified specialist workshop immediately. Drive carefully.
0025
00E5
inoperative See Owner's
Manual *
ABS and ESP ®
are malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be malfunctioning.
The brake sy stem continues tooperate normally. The braking dis tance may increase in an emergency braking situa‐
tion. 000A
WARNING Risk of skidding if ABS and ESP ®
are malfunctioning
If ABS and ESP ®
are malfunctioning, the wheels could lock when braking and ESP ®
cann otcar ryout vehicle
st abilisation.
The steering capability and braking characteristics are thus se verely impaired. The br aking distance may
increase in an emergency braking situation. In addition, other driving saf ety sy stems are switched off. 0007
Drive on carefull y. 0007
Have ABS and ESP ®
ch ecked immediately at a qualified specialist workshop. 0007
Drive on carefully. 0007
Consult a qualified specialist workshop immediatel y. Displ
aymessa ges and warning/indicator lamps 47 9

Display messages
Possible causes/consequences and 0050
0050Solutions
Mercedes me connect
Services limited See Own-
er's Manual *S
ervice limited.
At least one of the main functions of the Mercedes me connect sy stem is malfunctioning. 0007
Obser vethe no tes on the diagnostics connection (0013 page 26). 0007
Consult a qualified specialist workshop.
0053 Inoperative *A
t least one main function of the Mercedes me connect sy stem or of the SOS emer gency call sy stem is malfunc‐
tioning. 0007
Consult a qualified specialist workshop.
0075 Front left malfunction Con-
sult workshop (Example) *T
he cor responding restra int sy stem is faulty (0013 page 33). 000A
WARNING Risk of inju ryor fata l injury due toa malfunction in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or
might not be triggered at all in theeve nt of an accident. This may af fect the seat belt tensioner or airbag, for
ex ample. 0007
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. De
tection of a restra int sy stem fault:
R The restra int sy stem warning lamp 0075does not light up when the ignition is switched on.
R The restra int sy stem warning lamp 0075lights up continuously or repeatedly during a journe y. Displ
aymessa ges and warning/indicator lamps 483

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Consult a qualified specialist workshop immediatel y.
Active Brake Assist Func-
tions currently limited See
Owner's Manual *
Ve hicles with the Driving Assistance Package: Active Brake Assi stwith cross-traf fic function, Evasi veSteering
Assist or PRE‑SAFE ®
PLUS are temp orarily una vailable or only partially available.
Ve hicles without the Driving Assistance pa ckage: Active Brake Assi stistemp orarily una vailable.
The ambient conditions are outside the sy stem limits (0013 page189). 0007
Drive on.
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again. 0007
Ifth e display message does not disappear, stop theve hicle while paying attention toroad and traf fic conditions
and restart the engine.
0075
Restraint sys. malfunction
Consult workshop *T
herestra int sy stem is faulty (0013 page 33). 000A
WARNING Risk of inju ryor fata l injury due toa malfunction in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or
might not be triggered at all in theeve nt of an accident. This may af fect the seat belt tensioner or airbag, for
ex ample. 0007
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. De
tection of a restra int sy stem fault:
R The restra int sy stem warning lamp 0075does not light up when the ignition is switched on.
R The restra int sy stem warning lamp 0075lights up continuously or repeatedly during a journe y.484
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Tocontinue your journe y,shift the transmission toposition 005Bor005E.
Only select Park (P) when
vehicle is stationary *
The transmission can only be shif tedto position 005Dwhen theve hicle is stationar y.
Risk of vehicle rolling
Driver door open and trans-
mission not in P *
The driver's door is not fully closed and the transmission is in position 005E,005Cor005B. 0007
Shift the transmission toposition 005Dwhen you park theve hicle.
Apply brake to select R *
You ha vetried toswitch totransmission position 005E. 0007
Dep ress the brake pedal. 0007
Shift the transmission toposition 005E.
0044 Before starting the engine,
turn the steering wheel. *
Ve hicles with manual transmissions: the electric steering lock was unable tounlo ck th esteering. 0007
Switch off the ignition. 0007
Tounlo ckthesteering, mo vethesteering wheel slightly tothe left and right. 0007
Switch the ignition back on.
00CC Steering malfunction See
Owner's Manual *
Ve hicles with manual transmissions: the electric steering lock is malfunctioning. The steering may be loc kedby
th e electric steering loc k. 508
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions
0059 While stationary, apply the
brakes before operating
the soft top. *T
hevehicle is stationary and you try toopen or close the soft top. 0007
Depress the brake pedal. 0007
Push or pull the soft top switch again until the soft top is fully open or closed.
0058 Close boot separator *T
he boot separator is open. 0007
Close the boot separator. Lights
Display messages
Possible causes/consequences and 0050 0050Solutions
0049 Intelligent Light System
inoperative *T
he Intelligent Light Sy stem is faulty. The lighting sy stem continues tofunction properly without the functions of
th e Intelligent Light Sy stem. 0007
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 523

Display messages
Possible causes/consequences and 0050
0050Solutions
0049 Switch off lights *Y
ou are leaving theve hicle and the lights are still switched on. 0007
Turn the light switch tothe0058 position.
0049 Switch on headlamps *Y
ou are driving without lo w-beam headlamps. 0007
Turn the light switch tothe0058 or0058 position.
0049
Automatic driving lights
inoperative *T
he light sensor is faulty. 0007
Consult a qualified specialist workshop.
0049 Left dipped beam (Example)*T
he cor responding light source is defective. 0007
Drive on carefully. 0007
Consult a qualified specialist workshop immediatel y.
0009 LED light bulbs: the display message forth e cor responding lamp appears only when allthe light-emitting diodes
in the lamp ha vefailed. 524
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions
0049 Active Light System inoper-
ative *T
he active headlamp s arefaulty. 0007
Consult a qualified specialist workshop.
0049 Malfunction See Owner's
Manual *T
heexterior lighting is faulty. 0007
Consult a qualified specialist workshop.
Ve hicles with a trailer hitch: a fuse may haveblown. 0007
Pull over and stop theve hicle, paying attention toroad and traf fic conditions. 0007
Check the fuses and replace them if necessary (0013 page 428).
Adaptive Highbeam Assist
inoperative *A
daptive Highbeam Assist is malfunctioning. 0007
Consult a qualified specialist workshop.
Adaptive Highbeam Assist
currently unavailable See
Owner's Manual *A
daptive Highbeam Assist is temp orarily una vailable.
The sy stem limits ha vebeen reached (0013 page132). 0007
Drive on.
Once the cause of the problem is no longer present, the sy stem will be available again. The Adaptive Highbeam
Assist available again display message appears.
*T he camera view is restricted. Possible causes:
R dirt on the windscreen in the camera's field of vision Display messages and
warning/indicator lamps 525

Display messages
Possible causes/consequences and 0050
0050Solutions
Once the cause of the problem is no longer present, driving sy stems and driving saf ety sy stems will be available
again.
If th e display message does not disappear: 0007
Pull over and stop theve hicle, paying attention toroad and traf fic conditions. 0007
Clean the windscreen. Wa
rning and indicator lamps Overview of
warning and indicator lamps Some sy
stems will per form a self-test when the
ignition is switched on. Some warning and indi‐
cator lamps may brief lylight up or flash. This
behaviour is non-critical. These warning and indi‐
cator lamps indicate a malfunction only if they
light up or flash af terth e engine has been star‐
te d or during a journe y. Instrument display (standard) Instrument display in
the widescreen cockpit Wa
rning and indicator lamps:
0058 Low beam (0013
page127)
0060 St
anding lights (0013 page127) Displ
aymessa ges and warning/indicator lamps 527