2018 MERCEDES-BENZ C-CLASS CABRIOLET Owners Manual

Note
s ontech nical data
Mercedes-AMG vehicles: be sure toobser ve
th e no tes in the Supplement. Otherwise, you
may failto recognise dangers.
The tech nical da tawa s de term ined in accord‐
ance with EU Directives. The data stated on ly
applies tovehicles with standard equipment. Yo u
can obtain fur ther information from a Mercedes-
Benz Service Centre.
Only for ce rtain countries: you can find vehi‐
cle-specific vehicle data in the EC-Certificate of
Conformity (CERTIFIC ATE OF CONFORMITY).
These documents are deli vered with your vehi‐
cle. On-board electronics
Note
s on tampering with the engine elec‐
tronics 000E
NO
TEPremature wearthro ugh improper
main tenance Improper maintenance may cause
vehicle
components towe ar more quickly and the
ve hicle's operating permit may be in valida‐
te d. 0007
Alw ays ha vewo rkon the engine elec‐
tronics and related components car ried
out at a qualified specialist workshop. Tw
o-w ayradios Note
s onfitting two-w ayradios 000A
WARNING Risk of accident due to
improper workon two-w ayradios
The elect romagnetic radiation from two-w ay
ra dios can inter fere with the on-board elec‐ tronics if RF transmit
ters are manipulated or
re trofitted inco rrectly.
This could jeopardise the operating saf ety of
th eve hicle. 0007
You should ha veall workon electrical
and electronic components car ried out
at a qualified specialist workshop. 000A
WARNING Risk of accident from incor‐
re ct ope ration of two-w ayradios
If yo u operate two- wayra dios inco rrectly in
th eve hicle, the electromagnetic radiation
could inter fere with the on-board electronics,
e.g.:
R ifth e two-w ayradio is not connec tedto
an exterior aerial
R ifth eex terior aerial is not cor rectly
mounted or is not of low reflection
This could jeopardise the operating saf ety of
th eve hicle. 0007
Have the lo w-reflection exterior aerial
fi tted at a qualified specialist workshop. 454
Tech nical da ta

0007
When operating two-w ayradios in the
ve hicle, alw ays connect them tothe
lo w- reflection exterior aerial. 000E
NO
TEInva lidation of the operating per‐
mit due tofailure tocomply wi th the
instructions for ins tallation and use The operating permit may be in
validated if
th e instructions for ins tallation and use of
two-w ayradios are not obser ved. 0007
Only use appr oved frequency bands. 0007
Obser vethe maximum permissible out‐
put po wer in these frequency bands. 0007
Only use appr oved aerial positions. 1
Rear wings
On there ar wings, it is recommended that you
fi t th e aerial on the side of theve hicle closest to
th e cent reofthero ad.
Use Tech nical Specification ISO/TS 21609 (Road
Ve hicles – "EMCs for ins tallation of af term arket
ra dio frequency transmitting equipment") when re
trofitting two-w ayradios. Comply with the
legal requirements for de tach able parts.
If yo ur vehicle has fittings for two-w ayradio
equipment, use the po wer supp lyand aerial con‐
nec tors prov ided in the pre-ins tallation. Be sure
to obser vethe manufacturer's supplements
when fitting.
Tw o-w ayradio transmission output
The maximum transmission output (PEAK) at the
base of the aerial must not exceed theva lues in
th efo llowing table.
Fr equency band and maximum transmission
output Fr
equency band Maximum transmis‐
sion output
Sho rtwa ve
3 - 54 MHz 30 W
4 m waveband
74 - 88 MHz 15 W Te
ch nical da ta455

Fr
equency band Maximum transmis‐
sion output
2 m waveband
14 4 - 174 MHz 25 W
trunked radio sys‐
te m/T etra
380 - 460 MHz 10 W
70 cm waveband
420 - 450 MHz 15 W
Tw o-w ayradio
(2G/3G/4G) 10 WThe
following devices can be used in theve hicle
without restrictions:
R two-w ayradios with a maximum transmission
output of up to100 mW
R two-w ayradios with transmit ter frequencies
in the 380 - 410 MHz frequency band and a
maximum transmission output of up to2 W
(trunked radio sy stem/T etra)
R mobile phones (2G/3G/4G) There are no
restrictions when positioning the
aerial on the outside of theve hicle forth efo llow‐
ing frequency bands:
R trunked radio sy stem/T etra
R 70 cm waveband
R 2G/3G/4G Ve
hicle identification plate, VIN and engine
number overview
Ve hicle identification plate 456
Tech nical da ta

Ve
hicle identification plate (e xample:Kuwa it)
1 Vehicle manufacturer
2 Place of manufacture
3 Manufacturing date
4 Vehicle model
5 VIN Ve
hicle identification plate (e xample: all
ot her countries)
1 Vehicle manufacturer
2 EUgeneral operating pe rmit number (only
fo r cer tain countries)
3 VIN (vehicle identification number)
4 Maximum permissible gross vehicle weight
(kg) 5
Maximum permissible gross weight of vehi‐
cle combination (kg) (only for specific coun‐
tries)
6 Perm issible front axle load (kg)
7 Perm issible rear axle load (kg)
8 Paint code
0009 The data shown in the illustration is example
data. Te
ch nical da ta457

VIN in front of the
right-hand front seat 1
Imprinted VIN (vehicle identification number)
2 Floor co vering VIN at the lo
wer edge of the windscreen 1
VIN (vehicle identi fication number) as label
The VIN as a label at the lo wer edge of the wind‐
screen is only available in some countries.
Engine number
The engine number is stamped into the crank‐
case. You can obtain fur ther information from
any qualified specialist workshop. Operating
fluids Note
s on operating fluids Mercedes-AMG
vehicles: be sure toobser ve
th e information in the Supplement. Otherwise,
yo u may failto recognise dangers. 000A
WARNING Risk of inju ryfrom operating
fl uids harmful to your health
Operating fluids may be poisonous and harm‐
ful to yo ur health. 0007
Obser vethete xt on the original con‐
ta iners when using, storing or disposing
of operating fluids. 0007
Alw aysst ore operating fluids sealed in
th eir original conta iners. 0007
Alw ayske ep children away from operat‐
ing fluids. 458
Tech nical da ta

000F
ENVIRONMENTAL
NOTEEnvironmental
pollution caused byenvironmen tally ir re‐
sponsible disposal 0007
Dispose of operating fluids in an envi‐
ro nmentally responsible manner. Operating
fluids include thefo llowing:
R fuels
R DeNOx agent AdBlue ®
forex haust gas af ter‐
treatment
R lubri cants
R coolant
R brake fluid
R windsc reen washer fluid
R climate cont rol sy stem refrigerant
Only use products app rove dby Mercedes-Benz.
Damage caused bythe use of products that ha ve
not been appr oved is not co veredby the
Mercedes-Benz warranty or goodwill gestures.
Yo u can identify operating fluids appr ovedby
Mercedes-Benz bythefo llowing insc ript ions on
th e conta iner: R
MB- Freigabe (e.g. MB-Fr eigabe 229.51 )
R MB-Appr oval (e.g. MB-App rova l 229.51)
Fu rther information on appr oved operating fluids
is available at thefo llowing locations:
R inthe Mercedes-Benz Specifications for
Operating Fluids byentering the designation
- at http://be vo.mercedes-benz.com
- inthe Mercedes-Benz BeVo App
R at a qualified specialist workshop 000A
WARNING Risk offire or explosion from
fuel
Fu els are highly flammable. 0007
Fire, naked flames, smoking and crea‐
tion of spar ksmust be avoided. 0007
Swit choff the ignition and, if available,
th est ationary heater, before and while
re fuelling theve hicle. 000A
WARNING Risk of inju ryfrom fuels
Fu els are poisonous and hazardous to your
health. 0007
Do not swallow fuel or let it come into
contact with skin, eyes or clo thing. 0007
Do not inhale fuel vapour. 0007
Keep children away from fuel. 0007
Keep doors and windo wsclosed du ring
th ere fuelling process.
If yo u or other people come into contact with
fuel, obser vethefo llowing: 0007
Immediately rinse fuel off your skin with
soap and water. 0007
If fuel comes into contact with your
ey es, immediately rinse them thor‐
oughly with clean water.Seek medical
attention immediately. 0007
Ifyo u swallow fuel, seek medical atten‐
tion immediatel y.Do not induce vomit‐
ing. Te
ch nical da ta459

0007
Chan geimmediately out of clo thing that
has come into con tact wi thfuel. Fu
el Information on fuel
grades forve hicles with
petrol engines
Obser vethe no tes on operating fluids
(0013 page 458).
000E NO
TEDama gecaused bythe wrong fuel Even small amounts of
the wrong fuel could
re sult in damage tothe fuel sy stem, the
engine and the emission control sy stem. 0007
Only refuel using unleaded, sulphu r-free
fuel that con form sto European EN 228,
or an equi valent specification.
Fu el of this specification may con tain up to
10 %ethanol by volume. Your vehicle is suita‐
ble for use with E10 fuel. Ne
verre fuel with one of thefo llowing fuels:
R diesel
R regular petrol with an octane number
lo we rth an 91 RON
R petrol with more than 10%ethanol byvol‐
ume, e.g. E15, E20, E85, E100
R petrol with more than 3% me thanol by
vo lume, e.g. M15, M30
R petrol with additives con taining me tal
If yo u ha veacciden tally refuelled with the
wrong fuel: 0007
do not swit chon the ignition. 0007
consult a qualified specialist workshop. The
following compatibility indications for fuel
apply to yourvehicle: 1
For petrol with maximum 5% ethanol byvol‐
ume
2 For petrol with maximum 10%ethanol by vol‐
ume
Ac cording toEuropean standard EN 1694 2you
can find the compatibility indications at thefo l‐
lowing locations:
R onthe instruction label on the fuel filler flap
R onthe fuel pump or pump nozzle suitable for
yo ur vehicle thro ughout Europe
If th eav ailable fuel is not suf ficiently low in sul‐
phu r,th is can produce unpleasant odours. 460
Tech nical da ta

The
recommended octane number foryo ur vehi‐
cle can also be found on the instruction label in
th e fuel filler flap (0013 page168).
As a temp orary measure, if there commended
fuel is not available, you may also use regular
unleaded petrol with at leas t:
R C18 0:93 RON
R allother models: 91RON
This may reduce engine output and increase fuel
consum ption.
Ne verre fuel using petrol with an even lo wer
RO N.
Fu rther information on fuel can be obtained at a
fi lling station or a qualified specialist workshop.
Information on additives in petrol
Obser vethe no tes on operating fluids
(0013 page 458).
000E NO
TEDama gefrom use of unsuitable
additives Even small amounts of
the wrong additive
may lead tomalfunctions occur ring. 0007
Only add cleaning additives recommen‐
ded byMercedes-Benz tothe fuel. Mercedes-Benz
recommends that you use fuel
brands that ha veadditives.
In some countries, the fuel available may not
ha ve suf ficient additives. Residue could build up
in the fuel injection sy stem as a result. In this
case, in consultation with a Mercedes-Benz
service centre, the fuel may be mixed with the
cleaning additive recommended byMercedes-
Benz. Be sure toobser vethe no tes and mixing
ra tios speci fied on the conta iner.
Information on fuel grades forve hicles with
a diesel engine
Gene ral no tes
Obser vethe no tes on operating fluids
(0013 page 458). 000A
WARNING Risk offire from fuel mixture
If yo u mix diesel fuel with petrol, theflash
point of the fuel mixture is lo werth an that of
pure diesel fuel. While
the engine is running, component
pa rts in theex haust sy stem may overheat
without warning. 0007
Neverre fuel using petrol in diesel
engines. 0007
Never mix petrol with diesel fuel. 000E
NO
TEDama gecaused bythe wrong fuel Even small amounts of
the wrong fuel could
re sult in damage tothe fuel sy stem, the
engine and the emission control sy stem. 0007
Only refuel using sulphu r-free diesel
fuel that con form sto European stand‐
ard EN 590, or an equivalent specifica‐
tion.
In countries without sulphur-f ree diesel
fuel, refuel using only lo w-sulphur diesel
fuel with a sulphur content less than
50 ppm. 0007
Vehicles without diesel particulate
fi lter: refuel using only diesel fuel with
a sulphur content less than 500 ppm. Te
ch nical da ta461