2018 MERCEDES-BENZ C-CLASS CABRIOLET ignition

If
yo u swit chon the HOLD function or select a
transmission position other than 005E, the engine
will automatically stop in thefo llowing situa‐
tions:
R youstop behind a vehicle that is pulling
aw ay.
R youstop at a stop sign when there is no vehi‐
cle in front of you.
R you turn thesteering wheel hard at a low
speed.
The engine is restar ted automatically if:
R vehicles with manual transmission: you
depress the clutch pedal.
R vehicles with automatic transmission: in
transmission position 005B,youre lease the
brake pedal when the HOLD function is not
active.
R vehicles with automatic transmission:
yo u shift into transmission position 005Bor
005E.
R you depress the accelera tor pedal.
R you open or close the soft top. R
an automatic engine start is necessar y.
If th e engine was switched off bythe ECO start/
st op function and you lea vetheve hicle, a warn‐
ing tone sounds and the engine is not restar ted.
The display message Vehicle is operational
Switch off the ignition before exiting also
appears in the multifunction displa y.Ifyo u do
not swit choff the ignition, the ignition is auto‐
matically switched off af terth re e minutes.
Ve hicles with a 48 V on-board electrical sys‐
te m (EQ Boo sttech nology)
The engine is switched off automatically in the
fo llowing situations if all vehicle conditions for
an automatic engine stop are me t:
R you brake theve hicle toast andstill in trans‐
mission position 005Bor005C.
R you depress the brake pedal while tra velling
at a low speed.
If yo u swit chon the HOLD function or select
ano ther transmission position 005E,the engine will
automatically stop in thefo llowing situations:
R youstop behind a vehicle that is pulling
aw ay. R
youstop at a stop sign when there is no vehi‐
cle in front of you.
R you turn thesteering wheel hard at a low
speed.
The engine is restar ted automatically if:
R youre lease the brake pedal in transmission
position 005Bwhen the HOLD function is not
active and one of thefo llowing conditions is
given:
- the drive program Aor; is not
selected
- the drive prog ram A or; is selec‐
te d but theve hicle does not start to
mo ve.
- the drive program Aor; is selec‐
te d, theve hicle mo ves at a speed of more
th an 20 km/h and Glide mode is not acti‐
va ted.
R you en gage transmission position 005Bor005E.
R youre lease the brake pedal, theve hicle is
not in Glide mode and it starts tomo veon a
ge ntle downhill gradient at a speed below
3 km/h. Driving and pa
rking 15 5

R
you depress the accelera tor pedal.
R an auto matic engine start is necessar y.
If th e engine was switched off bythe ECO start/
st op function and you lea vetheve hicle, a warn‐
ing tone sounds and the engine is not star ted
again. The display message Vehicle is opera-
tional Switch off the ignition before exiting also
appears in the multifunction displa y.Ifyo u do
not swit choff the ignition, the ignition is auto‐
matically switched off af terth re e minutes. Deactivating or activating
the ECO start/
sto p function 0007
Press button 1.
If indicator la mp2lights up, the ECO start/
st op function is activated.
0009 Depending on the model and theve hicle
equipment, the button may also be located
at a dif fere nt position in the cent reconsole. ECO displ
ayfunction The ECO display summa
rises the driving charac‐
te rist ics from thest art of the journey toits com‐
pletion and assists you in achieving the most
economical driving style.
Yo u can influence consum ption if you:
R drive with particular care
R drive theve hicle in drive program ;
R obser vethege arshift recommendations The inner segment lights up and
the outer seg‐
ment fills up:
R 1 Moderate acceleration 15 6
Driving and pa rking

000A
WARNING Risk of accident due toincor‐
re ct gearshifting
If th e engine speed is higher than the idle
speed and you en gage the transmission posi‐
tion 005Bor005E, theve hicle may accelerate
sharply. 0007
Ifyo u en gage the transmission position
005B or005E always depress the brake
pedal firm lyand do not accelerate at
th e same time. Use
the DIRECT SELECT le verto shift the trans‐
mission position. The cur rent transmission posi‐
tion is displ ayed in the multifunction displa y. 005D
Park position
005E Reversege ar
005C Neut ral
005B Drive position En
gaging reve rsege ar R 0007
Depress the brake pedal and push the
DIRECT SELECT le ver upwards past thefirst
point of resis tance.
The transmission position displ aysho ws005E
in the multifunction displa y.
Engaging neut ral N 0007
Depress the brake pedal and push the
DIRECT SELECT le ver up or down tothefirst
point of resis tance.
The transmission position displ aysho ws005C
in the multifunction displa y.
Subsequently releasing the brake pedal will
allow youto mo vetheve hicle freel y,e.g. topush
it or tow it away.
Proceed as follo ws ifyo uwa ntthe automatic
transmission toremain in neutral 005C
005Ceve n if
th e ignition is switched off: 0007
start theve hicle. 0007
depress the brake pedal and engage neutral
005C. 0007
release the brake pedal. 0007
switch off the ignition. Driving and parking
16 3

0009
Ifyo uth en exitth eve hicle leaving theke y in
th eve hicle, the automatic transmission
re mains in neutral 005C.
Engaging park position P 0007
Obser vethe no tes on parking theve hicle
(0013 page173). 0007
Dep ress the brake pedal until theve hicle is
st ationar y. 0007
When theve hicle is stationar y,press button
005D.
Pa rk position is only engaged when the trans‐
mission position display 005Dis shown in the
multifunction displa y.If no transmission posi‐
tion display 005Dappears, secure theve hicle
to preve nt it from rolling away.
Pa rk position 005Dis engaged automatically if one
of thefo llowing conditions is me t:
R you swit choff the ignition when theve hicle
is stationary and the transmission is in posi‐
tion 005Bor005E.
R you open the driver's door when theve hicle
is stationary or when driving at a very low speed and
the transmission is in position 005B
or 005E.
0009 Tomanoeuvre with an open driver's door,
open the driver's door while stationary and
engage transmission position 005Bor005E
again.
Engaging drive position D 0007
Depress the brake pedal and push the
DIRECT SELECT le ver down past thefirst
point of resis tance.
The transmission position displ aysho ws005B
in the multifunction displa y.
When the automatic transmission is in transmis‐
sion position 005B, it shiftsthege ars automati‐
call y.This depends on thefo llowing factors:
R the selected drive prog ram
R the position of the accelera tor pedal
R the driving speed Manual
gearshifting 000A
WARNING Risk of skidding and of an
accident due toshifting down on slippery
ro ad sur faces
If yo u shift down on slippery road sur faces to
inc rease the engine braking ef fect, the drive
wheels may lose traction. 0007
Do not shift down on slippery road sur‐
fa ces toinc rease the engine braking
ef fect. When
the automatic transmission is shif tedto
position 005B,you can manually shift it with the16 4
Driving and pa rking

Re
fuelling Re
fuelling theve hicle 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. 0007
Change immediately out of clo thing that
has come into con tact wi thfuel. 000A
WARNING Risk offire or explosion from
elect rostatic charge
Electros tatic charge can crea tespar ksand
th ereby ignite fuel vapours. 0007
Before you open the fuel filler cap or
ta ke hold of the pump nozzle, touch the
me tallic vehicle body.
This dischar ges any electros tatic charge
th at may ha vebuilt up. 0007
Do not get into theve hicle again during
th ere fuelling process.
Otherwise, electros tatic charge could
build up again. 000A
WARNING Risk offire from fuel mixture
Ve hicles with a diesel engine:
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. 0007
Never mix petrol with diesel fuel. 16 8
Driving and pa rking

000E
NO
TEDama gecaused bythe wrong fuel Ve
hicles with a petrol engine:
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. 0007
The RONrequ irement is located in the
fuel filler flap.
Fu el of this specification may con tain up to
10 %ethanol. Your vehicle is suitable for use
with E10 fuel.
Ne verre fuel using any 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, E30, 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 acciden tally refuel with the wrong fuel: 0007
Do not switch the ignition on. 0007
Consult a qualified specialist workshop. 000E
NO
TEDama gecaused bythe wrong fuel Ve
hicles with a diesel engine:
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.
Ne verre fuel using any of thefo llowing fuels:
R petrol
R marine diesel
R heating oil
R pure bio-diesel fuel or vege table oil
R paraf fin or kerosene
If yo u accidentally refuel with the wrong fuel: 0007
Do not switch the ignition on. 0007
Consult a qualified specialist workshop. 000E
NO
TEDo not use diesel torefuel vehi‐
cles with a petrol engine. If
yo u acciden tally refuel with the wrong fuel:
R Do not switch the ignition on. Otherwise
fuel can enter the engine. Driving and parking
16 9

Even small amounts of
the wrong fuel
could result in damage tothe fuel sy stem
and the engine. The repair costs are high. 0007
Consult a qualified specialist workshop. 0007
Have the fuel tank and fuel lines
drained compl etely. 000E
NO
TEDo not use petrol torefuel vehi‐
cles with a diesel engine. If
yo u acciden tally refuel with the wrong fuel:
R Do not switch the ignition on. Otherwise,
fuel can enter the fuel sy stem.
Even small amounts of the wrong fuel
could result in damage tothe fuel sy stem
and the engine. The repair costs are high. 0007
Consult a qualified specialist workshop. 0007
Have the fuel tank and fuel lines
drained compl etely. 000E
NO
TEFuel may spr ayout when you
re mo vethe fuel pump nozzle. 0007
Only fill th e fuel tank until the pump
nozzle switches off. Re
quirements:
R The vehicle is unloc ked.
0009 Do not get into theve hicle again during the
re fuelling process. Otherwise, electros tatic
ch arge could build up again.
Obser vethe no tes on operating fluids
(0013 page 458). 1
Fuelfiller flap
2 Brac ketfo rth e fuel filler cap
3 Tyre pressure table
4 QR code forre scue card
5 Stationary heater indication
6 Fuel type 0007
Press fuel filler flap 1. 17 0
Driving and pa rking

Preparing
theAd Blue ®
re fill canis ter 0007
Screw onthefast ener of AdBlue ®
re fill canis‐
te r2. 0007
Screw disposable hose 1onto the opening
of Ad Blue ®
re fill canis ter2 until hand-tight. To
pping up AdBlue ® 0007
Screw disposable hose 1onto thefiller
neck of theve hicle until hand-tight. 0007
Lift up and tip AdBlue ®
re fill canis ter2.
The filling process stops when theAd Blue ®
ta nk is compl etely full.
Ad Blue ®
re fill canis ter2 can be remo ved
when it has been only partially em ptied. 0007
Unscr ew and close disposable hose 1and
Ad Blue ®
re fill canis ter2 inreve rse order. 0007
Replace theAd Blue ®
fuel filler cap and turn it
clockwise. 0007
Close the fuel filler flap. 0007
Swit chon the ignition for at least 60 sec‐
onds.
0009 Ifth eve hicle could not be star ted as the
Ad Blue ®
tan kwa s em pty, it can take up to
60 seconds forth ere fill to be de tected. 0007
Start theve hicle.
0009 Avoid storing AdBlue ®
re fill con tainers per‐
manently in theve hicle. Pa
rking Pa
rking theve hicle 000A
WARNING Risk of accident and inju ry
caused byan insuf ficiently secu redve hi‐
cle rolling away.
If th eve hicle is not securely par ked suf fi‐
ciently, it can rollaw ay in an uncont rolled
wa yev en at a slight downhill gradient. 0007
Ensure that the par kedve hicle is alw ays
properly secured against rolling away as
fo llo ws: Driving and pa
rking 17 3