2018 MERCEDES-BENZ C-CLASS CABRIOLET fuel consumption

Emergency releaseDriver's door .................................... 83
Trunk .............................................. .85
Vehicle .............................................8 3
Emergency Tensioning Devices
Activation ........................................ .56
Emissions control
Service and warranty information .... 28
Engine
Check Engine warning lamp .......... .247
Display message ............................ 225
ECO start/stop function ................ 127
Engine number ............................... 340
Irregular running ............................ 129
Jump-starting ................................. 304
Starting (important safety notes) ... 125
Starting problems .......................... 129
Starting the engine with the
SmartKey ....................................... 125
Starting via smartphone ................ 126
Starting with the Start/Stop but-
ton ................................................. 125
Switching off .................................. 144
Tow-starting (vehicle) ..................... 309
Engine electronics
Problem (malfunction) ................... 129
Engine jump starting
see Jump starting (engine)
Engine oil
Adding ...........................................2 83
Additives ........................................ 343
Checking the oil level ..................... 282
Checking the oil level using the
dipstick .......................................... 283
Display message ............................ 227
Filling capacity ............................... 343
General notes ................................ 342
Notes about oil grades ................... 342
Notes on oil level/consumption .... 282
Temperature (on-board computer,
Mercedes-AMG vehicles) ...............2 08
Engine oil additives
see Additives (engine oil)
Entering an address
see also Digital Operator's Ma

n-
ual ..................................................2 53
ESC (Electronic Stability Control)
see ESP
®(Electronic Stability Program) ESP
®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 209
Characteristics ................................. 68
Crosswind Assist .............................7 1
Deactivating/activating (button
in Mercedes-AMG vehicles) .............6 9
Deactivating/activating (notes,
except Mercedes-AMG vehicles) ...... 68
Deactivating/activating (on-
board computer, except
Mercedes-AMG vehicles) ............... 204
Display message ............................ 213
Function/notes ................................ 67
General notes .................................. 67
Important safety information ........... 68
Trailer stabilization ........................... 70
Warning lamp ................................. 244
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 68
Exhaust
see Exhaust pipe
Exhaust check ................................... 147
Exhaust pipe
Cleaning ......................................... 292
Exterior lighting
Cleaning ......................................... 291
Setting options .............................. 107
see Lights
Exterior mirrors
Adjusting ....................................... 103
Dipping (automatic) ....................... 104
Folding in/out (automatically) ....... 104
Folding in/out (electrically) ........... 103
Out of position (troubleshooting) ... 104
Setting ........................................... 103
Storing settings (memory func-
tion) ............................................... 106
Storing the parking position .......... 104
Eyeglasses compartment ................. 264
F
Favorites
Overview ........................................ 256
Features ............................................. 267
Filler cap
see Refueling
Index11

Flat tireChanging a wheel/mounting the
spare wheel .................................. .331
MOExtended tires .......................... 297
Preparing the vehicle ..................... 296
TIREFIT kit ...................................... 298
Floormats ...........................................2 80
Folding wind screen
Cleaning ......................................... 290
Installing .......................................... 92
Removing ......................................... 92
Frequencies
Mobile phone ................................. 338
Two-way radio ................................ 338
Front-passenger seat
see Seat
Fuel
Additives ........................................ 342
Consumption statistics .................. 197
Displaying the current consump-
tion ................................................ 197
Displaying the range ......................1 97
Driving tips ....................................1 47
Fuel gauge ....................................... 36
Grade (gasoline) ............................ 341
Important safety notes .................. 341
Problem (malfunction) ................... 143
Refueling ........................................ 141
Tank content/reserve fuel ............. 341
Fuel filler flap
Closing ...........................................1 43
Fuel level
Calling up the range (on-board
computer) ...................................... 197
Fuel tank
Capacity ........................................ 341
Problem (malfunction) ................... 143
Fuses
Allocation chart .............................3 11
Before changing .............................3 09
Dashboard fuse box ....................... 310
Fuse box in the engine compart-
ment .............................................. 310
Fuse box in the front-passenger
footwell .......................................... 310
Fuse box in the trunk ..................... 311
Important safety notes .................. 309G
G-Meter (on-board computer,
Mercedes-AMG vehicles) .................. 208
Garage door opener
Clearing the memory ..................... 280
General notes ................................ 277
Important safety notes .................. 278
Opening/closing the garage door .. 280
Problems when programming ........2 79
Programming (button in the rear-
view mirror) ................................... 278
Synchronizing the rolling code ....... 279
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 208
Genuine parts ...................................... 27
Glove box ...........................................2 64
Google™ Local Search
see also Digital Operator's Man-
ual ..................................................2 53
H
Handbrake
see Parking brake
Handling control system
see ESP
®(Electronic Stability Program)
Handwriting recognition
Switching text reader function
on/off ............................................ 256
Touchpad ....................................... 255
Hazard warning lamps ......................109
Head bags
Display message ............................ 221
Operation ......................................... 51
Head level heating (AIRSCARF) ........100
Head restraints
Adjusting (electrically) ..................... 97
Adjusting the fore-and-aft posi-
tion manually ................................... 96
General notes .................................. 96
Important safety notes .................... 96
Installing/removing (rear) ................ 97
Head-up display
Adjusting the brightness ................ 206
Displays and operating .................. 195
Function/notes .............................1 95
Important safety notes .................. 195
12Index

Protecting the environment
General notes
HEnvironmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in a manner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected by these factors:
Roperating conditions of your vehicle
Ryour personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
Ravoid short trips as these increase fuel con-
sumption.
Ralways make sure that the tire pressures
are correct.
Rdo not carry any unnecessary weight.
Rremove roof racks once you no longer need
them.
Ra regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
Ralways have service work carried out at a
qualified specialist workshop.
Personal driving style:
Rdo not depress the accelerator pedal when
starting the engine.
Rdo not warm up the engine when the vehicle
is stationary.
Rdrive carefully and maintain a safe distance
from the vehicle in front.
Ravoid frequent, sudden acceleration and
braking.
Rchange gear in good time and use each gear
only up to Ôof its maximum engine speed.
Rswitch off the engine in stationary traffic.
Rkeep an eye on the vehicle's fuel consump-
tion.
Environmental concerns and recom-
mendations
Wherever the Operator's Manual requires you to
dispose of materials, first try to regenerate or re-
use them. Observe the relevant environmental
rules and regulations when disposing of materi-
als. In this way you will help to protect the envi-
ronment.
Genuine Mercedes-Benz parts
HEnvironmental note
Daimler AG also supplies reconditioned major
assemblies and parts which are of the same
quality as new parts. They are covered by the
same Limited Warranty entitlements as new
parts.
!Air bags and Emergency Tensioning Devi-
ces, as well as control units and sensors for
these restraint systems, may be installed in
the following areas of your vehicle:
Rdoors
Rdoor pillars
Rdoor sills
Rseats
Rcockpit
Rinstrument cluster
Rcenter console
Do not install accessories such as audio sys-
tems in these areas. Do not carry out repairs or welding. You could impair the operating
efficiency of the restraint systems.
Have aftermarket accessories installed at a
qualified specialist workshop.
You could jeopardize the operating safety of
your vehicle if you use parts, tires and wheels as
well as accessories relevant to safety which
have not been approved by Mercedes-Benz. This
could lead to malfunctions in safety-relevant
Genuine Mercedes-Benz parts27
Introduction
Z

be moved but the parking lock remains
engaged.
iUpshifts take place at higher engine speeds
after a cold start. This helps the catalytic con-
verter to reach its operating temperature
more quickly.
Information on the automatic release of the
electric parking brake (
Ypage 146).
Hill start assist
Hill start assist helps you when pulling away
forward or in reverse on an uphill gradient. It
holds the vehicle for a short time after you have
removed your foot from the brake pedal. This
gives you enough time to move your foot from
the brake pedal to the accelerator pedal and to
depress it before the vehicle begins to roll.
GWARNING
After a short time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is a risk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill start assist is not active if:
Ryou are pulling away on a level road or on a
downhill gradient.
Rthe transmission is in position i
Rthe electric parking brake is applied.
RESP®is malfunctioning
ECO start/stop function
Introduction
The ECO start/stop function switches the
engine off automatically if the vehicle is stopped
under certain conditions.
The engine starts automatically when the driver
wants to pull away again. The ECO start/stop
function thereby helps you to reduce the fuel
consumption and emissions of your vehicle.
Important safety notes
GWARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes
:ECO start/stop display
The ECO start/stop function is activated when-
ever you start the engine using the SmartKey or the Start/Stop button.
If the engine has been switched off automati-
cally by the ECO start/stop function, the è
ECO symbol is shown in the multifunction dis-
play.
Mercedes-AMG C 63 and Mercedes-AMG
C 63 S: the ECO start/stop function is auto-
matically switched on only in drive program C.
Mercedes-AMG C 43 4MATIC: the ECO start/
stop function is automatically switched on only
in drive programs S,Cand E.
Automatic engine switch-off
If the vehicle is braked to a standstill with the
transmission in hori, the ECO start/stop
function switches off the engine automatically.
The ECO start/stop function is operational
when:
Rthe indicator lamp in the ECO button is lit
green
Rthe outside temperature and the atmospheric
air pressure is within the range that is suitable
for the system
Rthe engine is at normal operating temperature
Rthe set temperature for the vehicle interior
has been reached
Driving127
Driving and parking
Z

Drive program S+ (SportPlus)
Drive progra mS+ is characterized by th efol-
lowing:
Rth evehicl eexhibits particularl ysport ydrivin g
characteristics .
Rthevehicl epulls away in first gear .
Rtheautomati ctransmissio nshift sup later.
th efue lconsumption possibl ybein ghigher as
a result of th elater automati ctransmissio n
shift points .
Rthesuspensio nexhibits particularl ystiff
springin gand dampin gsetting s(vehicles wit h
AIRMATIC) .
Rglidingmod eis no tavailable.
Rth eECO start/sto pfunction is switched of f
(Ypage 127).
Drive program S(Sport)
Drive progra mSis characterized by th efollow-
ing:
Rth evehicl eexhibits sport ydrivin gcharacter-
istics .
Rthevehicl epulls away in first gear .
Rtheautomati ctransmissio nshift sup later.
th efue lconsumption possibl ybein ghigher as
a result of th elater automati ctransmissio n
shift points .
Rthesuspensio nexhibits har dspringin gand
dampin gsetting s(vehicles wit hAIRMATIC) .
Rglidingmod eis no tavailable.
Rth eECO start/sto pfunction is switched on
(Ypage 127).
Drive program C(Comfort)
Drive progra mCis characterized by th efollow-
ing:
Rth evehicl edeliver scomfortable, economical
handlin gcharacteristics .
Rthevehicl epulls away mor egentl yin forwar d
and revers egears, unless th eaccelerato r
peda lis depressed fully.
Rth evehicl ehas improved drivin gstability, fo r
exampl eon slipper yroa dsurfaces.
Roptimal fue lconsumption resultin gfrom th e
automati ctransmissio nshiftin gup sooner.
The vehicl eis driven in th elow engin espeed
range and th ewheels are less likely to spin .
Rglidingmod eis no tavailable.
Rth eECO start/sto pfunction is switched on
(Ypage 127).
Drive program E(Economy)
Drive progra mEis characterized by th efollow-
ing:
Rth evehicl eexhibits comfortable, economical
handlin gcharacteristics .
Rthevehicl epulls away mor egentl yin forwar d
and revers egears, unless th eaccelerato r
peda lis depressed fully.
Rth evehicl ehas improved drivin gstability, fo r
exampl eon slipper yroa dsurfaces.
Roptimal fue lconsumption resultin gfrom th e
automati ctransmissio nshiftin gup sooner.
The vehicl eis driven in th elow engin espeed
range and th ewheels are less likely to spin .
Rduring deceleration,th eengin eis disconnec-
te dfrom th edrive train .The vehicl euses
kineti cenerg yand consumes less fuel.
Rth ecoolin gand heatin goutput of th eclimat e
control system has been reduced.
Rglidin gmod eis available.
Rth eECO start/sto pfunction is switched on
(Ypage 127).
Mercedes-AMG C63/ C63 S
Drive program RACE (S ‑M ODEL)
The RACE drive progra mis characterized by th e
following :
Rthevehicl eexhibits drivin gcharacteristics
suitable fo rth eracetrack.
Rall vehicl esystems are set fo rmaximum
sportiness .
Rthegearshift recommendation gives you
information fo rslowly warmin gup th edrive
assemblies and fo radopting afuel-efficien t
drivin gstyle (
Ypage 138). You can follow th e
gearshift recommendation sat all times and
shift gear accordingly usin gth esteerin g
whee lpaddl eshifters .On th ebasi sof th e
gearshift recommendation ,usin gth esteerin g
whee lpaddl eshifters ,you can optimiz eth e
drive train and engin eoperatin gmod eat any
time.
Rif you hav eselected agear manually, this will
be maintaine duntil th evehicl espeed increa-
ses or decreases dramatically.
Rth evehicl epulls away in first gear .
Rtheautomati ctransmissio nshift sup later.
th efue lconsumption possibl ybein ghigher as
a result of th elater automati ctransmissio n
shift points .
Automatic transmission137
Driving and parking
Z

Rthe suspension exhibits particularly hard
springing and damping settings.
Rgliding mode is not available.
Rthe ECO start/stop function is switched off
(Ypage 127).
Drive program S+ (Sport Plus)
Drive programS+is characterized by the fol-
lowing:
Rthe vehicle exhibits particularly sporty driving
characteristics.
Rthe vehicle pulls away in first gear.
Rthe automatic transmission shifts up later.
the fuel consumption possibly being higher as
a result of the later automatic transmission
shift points.
Rthe suspension exhibits particularly hard
springing and damping settings.
Rgliding mode is not available.
Rthe ECO start/stop function is switched off
(Ypage 127).
Drive program S (Sport)
Drive program Sis characterized by the follow-
ing:
Rthe vehicle exhibits sporty driving character-
istics.
Rthe vehicle pulls away in first gear.
Rthe automatic transmission shifts up later.
the fuel consumption possibly being higher as
a result of the later automatic transmission
shift points.
Rthe suspension exhibits stiff springing and
damping settings.
Rgliding mode is not available.
Rthe ECO start/stop function is switched off
(Ypage 127).
Drive program C (Comfort)
Drive program Cis characterized by the follow-
ing:
Rthe vehicle delivers comfortable, economical
handling characteristics.
Rthe vehicle pulls away more gently in forward
and reverse gears, unless the accelerator
pedal is depressed fully.
Rthe vehicle has improved driving stability, for
example on slippery road surfaces.
Roptimal fuel consumption resulting from the
automatic transmission shifting up sooner. The vehicle is driven in the low engine speed
range and the wheels are less likely to spin.
Rgliding mode is available.
Rthe ECO start/stop function is switched on
(Ypage 127).
Drive program I (Individual)
In drive program
Ithe following properties of the
drive program can be selected:
Rthe drive (engine management)
Rthe transmission management
RESP®(Ypage 67)
Rthe suspension
Ractivation of the exhaust flap
To permanently shift the gears manually in drive
program Iusing the steering wheel paddle shift-
ers, select the M(Manual) setting for the trans-
mission management.
Information about configuring drive program I
with the multimedia syste m ca
n be found under
"DYNAMIC SELECT" in the vehicle's Digital
Operator's Manual.
Manual gear shifting
General notes
You can change gear yourself using the steering
wheel paddle shifters. The transmission must be
in position hfor this.
Depending on which steering wheel paddle
shifter is pulled, the automatic transmission
immediately shifts into the next gear down or
up, if permitted.
To use manual shifting, you have two options:
Rtemporary setting
Rpermanent setting
If you activate manual gearshifting, the multi-
function display will show the current gear and
p instead of transmission position h.
If you deactivate manual gearshifting, the gears
will be shifted automatically again.
138Automatic transmission
Driving an d parking

Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers a
distance of 44 ft (approximately 14m)per sec-
ond.
Drive sensibly – save fuel
Observe the following tips to save fuel:
XThe tires should always be inflated to the rec-
ommended tire pressure.
XRemove unnecessary loads.
XRemove roof racks when they are not needed.
XWarm up the engine at low engine speeds.
XAvoid frequent acceleration or braking.
XHave all maintenance work carried out as
indicated by the service intervals in the Main-
tenance Booklet or by the service interval dis-
play.
Fuel consumption also increases when driving in cold weather, in stop-start traffic and in hilly ter-
rain.
Drinking and driving
GWARNING
Drinking and driving and/or taking drugs and driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment.
The possibility of a serious or even fatal acci-
dent is greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Emission control
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation. Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the
manufacturer's specifications. Always have
work on the engine carried out at a qualified
specialist workshop. Mercedes-Benz recom-
mends that you use an authorized Mercedes-
Benz Center for this purpose. In particular, work
relevant to safety or on safety-related systems
must be carried out at a qualified specialist
workshop.
The engine settings must not be changed under any circumstances. Furthermore, all specific
service work must be carried out at regular
intervals and in accordance with the Mercedes-
Benz service requirements. Details can be found in the Maintenance Booklet.
ECO display
The ECO display shows you how economical
your driving style is. The ECO display assists you
in achieving the most economical driving style
for the selected settings and prevailing condi-
tions. Your driving style can significantly influ-
ence the vehicle's consumption.
:Acceleration
;Coasting
=Constant
?Additional range achieved
Range ?is shown under Bonus
fr.Startand
represents the additional range achieved since
the beginning of the journey as a result of an
adapted driving style.
If the fuel level has dropped into the reserve
range, the Reserve Fuel
display message is
shown instead of range ?in the multifunction
Driving tips147
Driving and parking
Z

display. The8warning lamp in the instru-
ment cluster also lights up (Ypage 247).
The ECO display consists of three sections, with
an inner and outer area. The sections corre-
spond to the following three categories:
:Acceleration (evaluation of all accel-
eration processes):
Rthe outer area fills up and the inner area lights up green: moderate
acceleration, especially at higher
speeds
Rthe outer area empties and the
inner area is gray: sporty acceler-
ation
;Coasting (evaluation of all decelera-
tion processes):
Rthe outer area fills up and the inner area lights up green: anticipatory
driving, keeping your distance and
early release of the accelerator.
The vehicle can coast without use
of the brakes.
Rthe outer area empties and the
inner area is gray: frequent heavy
braking
=Constant (continuous evaluation
over the entire journey):
Rthe outer area fills up and the inner area lights up green: constant
speed and avoidance of unneces-
sary acceleration and deceleration
Rthe outer area empties and the
inner area is gray: fluctuations in
speed
The three inner areas display the current driving
style and light up green as a result of a particu-
larly economical driving style. Depending on thedriving situation, up to two areas may light up
simultaneously.
At the beginning of the journey, the three outer
areas are empty and fill up as a result of eco-
nomical driving. A higher level indicates a more
economical driving style. If the three outer areas
are completely filled at the same time, the driver
has adopted the most economical driving style
for the selected settings and prevailing condi-
tions. The ECO display border lights up.
The ECO display does not indicate the actual fuel consumption. The additionally achieved range displayed under
Bonus fr. Start
does not
indicate a fixed consumption reduction.
In addition to driving style, the actual consump-
tion is affected by other factors, such as:
Rload
RTire pressure
RCold start
RChoice of route
RActive electrical consumers
These factors are not included in the ECO dis-
play.
An economical driving style specially requires
driving at moderate engine speeds.
Achieving a higher value in the categories
"Acceleration" and "Constant":
Robserve the gearshift recommendations
Rdrive using drive program E
On long journeys at a constant speed, e.g. on the
highway, only the outer area for "constant" will
change.
The ECO display summarizes the driving style
from the start of the journey to its completion.
Therefore, there are more marked changes in
the outer areas at the start of a journey. On lon- ger journeys, there are fewer changes. For more
marked changes, perform a manual rest
(
Ypage 198).
For further information on the ECO display, see
(
Ypage 197).
Braking
Important safety notes
GWARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
Downhill gradients
!On long and steep gradients, you must
reduce the load on the brakes by shifting to a
lower gear in good time. This allows you to
take advantage of the engine's braking effect.
148Driving tips
Driving and parking