engine MERCEDES-BENZ C-CLASS CABRIOLET 2018 Owners Manual

We
ights and loads Please no
tethat forth e specified vehicle data:
R items of optional equipment increase the
unladen weight and reduce the pa yload.
R vehicle-specific weight information can be
fo und on theve hicle identification plate . Tr
ailer hitch Gene
ral no tes on the trailer hit ch Not all models can be used
for trailer operation
(0013 page243).
Modi fications tothe engine cooling sy stem may
be necessar y,depending on theve hicle model.
The retrofitting of a trailer hitch is only pe rmissi‐
ble if a towing capacity is specified in your vehi‐
cle documents.
Fu rther information can be obtained at a quali‐
fi ed specialist workshop. Mounting dimensions
1
Fastening points
2 Overhang dimension
3 Rear axle centre line The
overhang dimension and fastening points
are valid for a trailer hitch ins talled at thefa c‐
to ry. Model
2 2Over‐
hang dimen‐ sion
All model s1 149 mm Pe
rm issible towing capacity The
tongue weight is not included in theto wing
capacity.
Pe rm issible towing capacit y,braked (at a
minimum start-off gradeability of 8% from a
st andstill) Model
Perm issible towing
capacit y,braked
C 18 0, manual trans‐
mission 14
00 kg
All other models 1800 kg Te
ch nical da ta469

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
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 all senso rs (0013 page 403). 0007
Restart the engine.
0025
00E5
currently unavailable See
Owner's Manual *
ABS and ESP ®
are temp orarily una vailable.
Other driving sy stems and driving saf ety sy stems may also be temp orarily una vailable.
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. 478
Displaymessa ges and warning/indicator lamps

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
In order toadjust theve hicle le vel during trailer operation, you must not drive at speeds greater than 30 km/h.
Blind Spot Assist currently
unavailable See Owner's
Manual *B
lind Spot Assist is temp orarily una vailable.
The sy stem limits ha vebeen reached (0013 page 237). 0007
Drive on.
Once the cause of the problem is no longer present, the sy stem will be available again.
or 0007
Ifth e display message does not disappear, stop theve hicle while paying attention toroad and traf fic conditions
and restart the engine. 0007
If necessar y,clean there ar bumper. If the bumper is extreme lydirty, the sensors in the bumper may be mal‐
functioning. Active Steering Assist inop-
erative
*A
ctive Steering Assist is malfunctioning. Active Dis tance Assi stDISTRONIC remains available. 0007
Consult a qualified specialist workshop.
00CC Vehicle rising Please wait *T
hevehicle le vel is too lo w.The vehicle is raised tothe selected vehicle le vel. 0007
Wait until the display message disappears before pulling away. 486
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions
Blind Spot Assist inopera-
tive *B
lind Spot Assist is malfunctioning. 0007
Consult a qualified specialist workshop.
Active Parking Assist and
PARKTRONIC inoperative
See Owner's Manual *A
ctive Parking Assist and Parking Assist PARKTRONIC are malfunctioning. 0007
Stop theve hicle, paying attention toroad and traf fic conditions, and restart the engine. 0007
Ifth e display message continues tobe displa yed, consult a qualified specialist workshop.
Active Blind Spot Assist
currently unavailable See
Owner's Manual *A
ctive Blind Spot Assi stistemp orarily una vailable.
The sy stem limits ha vebeen reached (0013 page 237). 0007
Drive on.
Once the cause of the problem is no longer present, the sy stem will be 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. Active Steering Assist cur-
rently unavailable See Own-
er's Manual
*A
ctive Steering Assist is temp orarily una vailable.
The ambient conditions are outside the sy stem limits (0013 page 205). 0007
Drive on.
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again. 0007
If necessar y,clean the windscreen in the camera's field of vision. 0007
Check the tyre pressure if necessar y. Displ
aymessa ges and warning/indicator lamps 487

Display messages
Possible causes/consequences and 0050
0050Solutions
Po ssible causes:
R dirt on the windscreen in the camera's field of vision
R heavy rain, snow or fog
Driving sy stems and driving saf ety sy stems may be malfunctioning or temp orarily una vailable.
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. Engine
Display messages
Possible causes/consequences and 0050 0050Solutions
003D See Owner's Manual *T
he battery is not being charge d.
000E NO
TEPossible engine damage if you continue driving 0007
Do not continue driving under any circum stances. 0007
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 495

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. 0007
Consult a qualified specialist workshop.
003A Clean the fuel filter *
Ve hicles with diesel engines: the fuel filter is dirty or thewate r inthe fuel filter needs tobe drained. 0007
Consult a qualified specialist workshop.
Top up coolant See Own-
er’s Manual *T
he coolant le vel is too lo w.
000E NO
TEEngine dama gedue toinsuf ficient coolant 0007
Avoid long journe yswith insuf ficient coolant. 0007
Add coolant (0013 page 394).
003D
Stop vehicle Leave engine
running *T
he battery charge leve l is too lo w. 0007
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. 0007
Lea vethe engine running. 0007
Wait until the display message disappears before pulling away. 496
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions
009E Replace air cleaner *
Ve hicles with diesel engines: the engine air filter is dirty and must be replaced. 0007
Consult a qualified specialist workshop.
003D 12 V battery See Owner's
Manual *T
he engine is off and the battery charge leve l is too lo w. 0007
Switch off electrical consumers that are not required. 0007
Lea vethe engine running for a few minutes, or drive for a longer dis tance.
The battery will charge.
If th e message appears while the engine is running, this indicates an on-board elect rical sy stem malfunction. 0007
Consult a qualified specialist workshop.
003D Stop vehicle See Owner's
Manual *T
he battery is no longer being charge d and the battery charge leve l is too lo w.
000E NO
TEPossible engine damage if you continue driving 0007
Do not continue driving under any circum stances. 0007
Consult a qualified specialist workshop. 0007
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. 0007
Switch off the engine. 0007
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 497

Display messages
Possible causes/consequences and 0050
0050Solutions
Cannot start engine See
Owner's Manual *T
hecharge leve l of the 48 V battery is too lo w.You can no lon gerst art the engine. 0007
Switch off electrical consumers that are not required. 0007
Connect a suitable charge r appro vedby Mercedes-Benz with suf ficient charge output tothe jump-s tart connec‐
tion point of the12 V battery (0013 page 420).
The 48 V battery is charge d via thevo ltage con verter in theve hicle.
Motor can be started again *T
he 48 V battery has been charge d automatically via thevo ltage con verter. 0007
Start the engine and drive theve hicle for a while tocharge the12 V battery and the 48 V batter y.
00AC *T
hefan mo tor is defective. 0007
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C.
00AC
Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. 000A
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. 0007
Before opening the bonn et, allow the engine tocool down. 0007
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. 498
Display messages and warning/indicator lamps