2018 MERCEDES-BENZ C-CLASS CABRIOLET fuel type

Suspension tuningSETUP (on-board computer,
Mercedes-AMG vehicles) ............... 209
Switching air-recirculation mode
on/off .................................................1 20
Switching on media mode
Via the device list .......................... 261
T
Tachometer ........................................ 193
Tail lamps
Display message ............................ 224
Tank
see Fuel tank
Tank content
Fuel gauge ....................................... 36
Technical data
Capacities ...................................... 340
Information .................................... 338
Vehicle data ................................... 345
Telephone
Accepting a call (multifunction
steering wheel) .............................. 202
Authorizing a mobile phone (con-
necting) ......................................... 260
Connecting a mobile phone (gen-
eral information) ............................ 260
Display message ............................ 239
Introduction ................................... 202
Menu (on-board computer) ............ 202
Number from the phone book ........ 202
Redialing ........................................ 203
Rejecting/ending a call ................. 202
see also Digital Operator's Man-
ual .................................................. 253
Switching between mobile
phones ........................................... 261
see Mobile phone
Temperature
Coolant (display in the instrument
cluster) .......................................... 193
Engine oil (on-board computer,
Mercedes-AMG vehicles) ............... 208
Outside temperature ...................... 193
Setting (climate control) ................ 118
Transmission oil (on-board com-
puter, Mercedes-AMG vehicles) ..... 208 Through-loading feature
................... 265
Timing (RACETIMER) ......................... 210
Tire pressure
Calling up (on-board computer) ..... 319
Checking manually ........................ 318
Display message ............................ 234
Maximum ....................................... 318
Not reached (TIREFIT) .................... 299
Notes ............................................. 316
Reached (TIREFIT) .......................... 300
Recommended ............................... 315
Using the TIREFIT kit ...................... 298
Tire pressure loss warning system
General notes ................................ 318
Important safety notes .................. 318
Restarting ...................................... 319
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 321
Function/notes ............................. 319
Genera l note
s ................................ 319
Important safety notes .................. 319
Radio type approval for the tire
pressure monitor ........................... 322
Restarting ...................................... 321
Warning lamp ................................. 251
Warning message .......................... 321
Tire pressure sensors
Display message ............................ 235
Tire-change tool kit ........................... 296
TIREFIT kit
Important safety notes .................. 298
Storage location ............................ 296
Tire pressure not reached .............. 299
Tire pressure reached .................... 300
Using ............................................. 298
Tires
Aspect ratio (definition) ................. 331
Average weight of the vehicle
occupants (definition) .................... 329
Bar (definition) ............................... 329
Changing a wheel .......................... 331
Characteristics .............................. 329
Checking ........................................ 313
Curb weight (definition) ................. 330
Definition of terms ......................... 329
Direction of rotation ...................... 332
Display message ............................ 234
Index21

Vehicle batterysee Battery (vehicle)
Vehicle dimensions ........................... 345
Vehicle emergency locking ................ 83
Vehicle identification number
see VIN
Vehicle identification plate .............. 339
Vehicle level
AIRMATIC ...................................... 164
Display message ............................ 228
Video
Operating the DVD ......................... 201
see also Digital Operator's Man-
ual .................................................. 253
VIN
Seat ............................................... 340
Type plate ...................................... 339
W
Warning and indicator lampsABS ................................................ 244
Active Brake Assist ........................ 250
Airbag ............................................ 247
Brakes ........................................... 243
Coolant .......................................... 248
Distance warning ........................... 250
Engine diagnostics ......................... 247
ESP
®.............................................. 244
ESP®OFF ....................................... 246
Fuel tank ........................................ 247
General notes ................................ 241
Overview .......................................... 36
Parking brake ................................ 247
PASSENGER AIR BAG ...................... 44
Reserve fuel ................................... 247
Restraint system ............................ 247
Seat belt ........................................ 241
SPORT handling mode ................... 246
Steering ......................................... 252
Tire pressure monitor .................... 251
Warranty .............................................. 28
Washer fluid
Display message ............................ 239
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 253 Wheel and tire combinations
Tires ............................................... 336
Wheel bolt tightening torque ........... 336
Wheel chock ...................................... 332
Wheels
Changing a wheel .......................... 331
Checking ........................................ 313
Cleaning ......................................... 291
Important safety notes .................. 312
Information on driving .................... 312
Interchanging/changing ................ 331
Mounting a new wheel ................... 335
Mounting a wheel .......................... 332
Removing a wheel .......................... 335
Snow chains .................................. 315
Storing ........................................... 332
Tightening torque ........................... 336
Wheel size/tire size ....................... 336
Wind deflector (cleaning instruc-
tions) .................................................. 289
Wind screen ......................................... 91
Wind screen (cleaning instruc-
tions) .................................................. 290
Windows
see Side windows
Windshield
Defrosting ...................................... 118
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 285
Important safety notes .................. 344
Windshield wipers
Problem (malfunction) ................... 114
Repl acing the w
iper blades ............ 112
Switching on/off ........................... 111
Winter driving
Important safety notes .................. 314
Slippery road surfaces ................... 151
Snow chains .................................. 315
Winter operation
Radiator cover ............................... 282
Summer tires ................................. 314
Winter tires
M+S tires ....................................... 314
Wiper arm
Moving to a vertical position .......... 112
24Index

GWARNING
Fuel is poisonous and hazardous to health.
There is a risk of injury.
You must make sure that fuel does not come into contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children.
If you or others come into contact with fuel,
observe the following:
RWash away fuel from skin immediately
using soap and water.
RIf fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with-
out delay.
RIf fuel is swallowed, seek medical assis-
tance without delay. Do not induce vomit-
ing.
RImmediately change out of clothing which
has come into contact with fuel.
GWARNING
Electrostatic buildup can create sparks and
ignite fuel vapors. There is a risk of fire and
explosion.
Always touch the vehicle body before opening
the fuel filler flap or touching the fuel pump
nozzle. Any existing electrostatic buildup is
thereby discharged.
Do not get into the vehicle again during the refu-
eling process. otherwise electrostatic charge
could build up again.
!Do not use diesel to refuel vehicles with a
gasoline engine. Do not switch on the ignition
if you accidentally refuel with the wrong fuel.
Otherwise, the fuel will enter the fuel system. Even small amounts of the wrong fuel could
result in damage to the fuel system and the
engine. Notify a qualified specialist workshop
and have the fuel tank and fuel lines drained
completely.
!Overfilling the fuel tank could damage the
fuel system.
!Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
!Use a filter when adding fuel from a fuel can.
The fuel lines and/or the fuel injection system
could otherwise be blocked by particles from
the fuel can.
If you overfill the fuel tank, fuel could spray out
when the fuel pump nozzle is removed.
For further information on fuel and fuel quality
(
Ypage 340).
Refueling
General information
Pay attention to the important safety notes
(Ypage 141).
If you unlock/lock the vehicle from the outside,
the fuel filler flap also unlocks/locks.
The position of the 8fuel filler cap is dis-
played on the instrument cluster. The arrow next
to the filling pump indicates the side of the vehi-
cle.
Opening the fuel filler flap
:To open the fuel filler flap
;To insert the fuel filler cap
=Tire pressure table
?Instruction label for fuel type to be refueled
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, in vehicles with KEYLESS-GO start-function
or KEYLESS ‑GO
XOpen the driver's door.
The vehicle electronics are now in setting u.
This is the same as "SmartKey removed".
XPress the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings up.
142Refueling
Driving and parking

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
F!NF (USA only), !(Canada only): the red indicator lamp for the electric
parking brake flashes or is lit and/or the yellow warning lamp for the electric
parking brake is lit.
XObserve the additional display messages in the multifunction display.
6N The red restraint system warning lamp is lit while the engine is running.
The restraint system is malfunctioning.
GWARNING
The air bags or Emergency Tensioning Devices may either be triggered uninten-
tionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
XObserve the additional display messages in the multifunction display.
XDrive on carefully.
XContact a qualified specialist workshop and have the restraint system checked.
For further information about the restraint system, see (
Ypage 43).
Engine
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
;NThe yellow Check Engine warning lamp lights up while the engine is running.
There may be a malfunction, for example:
Rin the engine management
Rin the fuel injection system
Rin the exhaust system
Rin the ignition system
Rin the fuel system
The emission limit values may be exceeded and the engine may be in emergency
mode.
XVisit a qualified specialist workshop immediately.
In some states, you must immediately visit a qualified specialist workshop as soon as the yellow Check Engine warning lamp lights up. This is due to the legal require-
ments in effect in these states. If in doubt, check whether such legal regulations
apply in the state in which you are currently driving.
8N The yellow reserve fuel warning lamp lights up while the engine is running.
The fuel level has dropped into the reserve range.
XRefuel at the nearest gas station.
Warning and indicator lamps in the instrument cluster247
On-board computer and displays
Z

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
8NThe yellow reserve fuel warning lamp flashes while the vehicle is in motion.
In addition, the ;Check Engine warning lamp may light up.
The fuel filler cap is not closed correctly or the fuel system is leaking.
XCheck that the fuel filler cap is correctly closed.
XIf the fuel filler cap is not correctly closed: close the fuel filler cap.
XIf the fuel filler cap is closed:visit a qualified specialist workshop.
?NThe red coolant warning lamp lights up while the engine is running and the
coolant temperature gauge is at the start of the scale.
The temperature sensor for the coolant temperature gauge is malfunctioning.
The coolant temperature is no longer being monitored. There is a risk of engine
damage if the coolant temperature is too high.
XPull over and stop the vehicle safely and switch off the engine, paying attention
to road and traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 143).
XConsult a qualified specialist workshop.
248Warning and indicator lamps in the instrument cluster
On-board computer and displays

Calling up the climate control bar
Multimedia system:
XSelectVehicle.
The vehicle menu is displayed.
XSlide 6the controller repeatedly until the
climate control bar is activated.
Calling up the climate control menu
Multimedia system:
XSelect Vehicle.
The vehicle menu is displayed.
XSlide 6the controller repeatedly until the
climate control bar is activated.
XTo select from climate control bar ;: turn
and press the controller.
The menu for selecting the climate control
function is activated.
XTo select the climate control function: turn
and press the controller.
The selected climate control function
appears.
Settings in the climate menu
Adjusting the climate mode settings
The climate mode determines the type of air-
flow. The setting is active when the air-condi-
tioning system is set to Ã(
Ypage 117).
XCall up the climate control menu
(Ypage 258).
XTo select Climate Mode: turn and press the
controller.
XTo change the setting: turn the controller.
XTo exit the menu: press the%button.
The climate mode bar displays the current air-
flow setting: DIFFUSE
,MEDIUMor FOCUS.
Switching the ionization on/off
The ionization has a cleansing effect on the air in
the vehicle interior. Further information
(
Ypage 120).
XCall up the climate control menu
(Ypage 258).
XTo select Ionization: turn and press the
controller.
The setting element is active.
XTo switch the ionization on or off: turn the
controller.
XTo exit the menu: press the%button.
Settings in the bottom bar of the cli-
mate control menu
Switching cooling with air dehumidifica-
tion on/off
XCall up the climate control menu
(Ypage 258).
XSlide6the controller repeatedly until the
bottom bar is activated.
XTo select OA/C: turn and press the control-
ler.
XSwitch cooling with air dehumidification on
O or off ª.
iThe current status of the cooling function is
displayed in the climate control bar: A/C ON
– activated, A/C OFF – deactivated.
iDeactivating the cooling with air dehumidi-
fication function reduces fuel consumption.
Synchronizing the climate control set-
tings
Use OSync(synchronization) to select the cli-
mate control setting for all zones together Oor
separately ª.
XCall up the climate control menu
(Ypage 258).
XSlide6the controller repeatedly until the
bottom bar is activated.
XTo select OSync: turn and press the con-
troller.
XSwitch the synchronization function on Oor
off ª.
For further information on synchronizing climate
control settings, see (
Ypage 118).
Navigation mode
Important safety notes
GWARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle when driving, you may be distracted from
the traffic situation. You could also lose con-
258Operating system
Multimedia system

XMake sure that the SmartKey is in position2
in the ignition lock (Ypage 123).
XPress òon the steering wheel to call up
the menu list.
XPress 9or: on the steering wheel to
select the Servicemenu.
XConfirm by pressing aon the steering
wheel.
XPress 9or: to select Tire Pres‐sure.
XPressato confirm.
The multifunction display shows the current
tire pressure of each wheel or the Tire
pressure will be displayed afterdriving a few minutesmessage.
XPress the:button.
The UseCurrentPressuresasNewRef‐erence Valuesmessage is shown on the
multifunction display.
If you wish to confirm the restart:
XPress the abutton.
The TirePress.MonitorRestartedmes-
sage is shown on the multifunction display.
After driving for a few minutes, the system
checks whether the current tire pressures are within the specified range. The new tire pres-
sures are then accepted as reference values
and monitored.
If you wish to cancel the restart:
XPress the %button.
The tire pressure values stored at the last
restart will continue to be monitored.
Radio type approval for the tire pres-
sure monitor
CountryRadio type approval number
USAFCC ID: MRXGG4
FCC ID: MRXMC34MA4
CanadaIC: 2546A-GG4
Loading the vehicle
Instruction labels for tires and loads
GWARNING
Overloaded tires can overheat, causing a
blowout. Overloaded tires can also impair the steering and driving characteristics and lead
to brake failure. There is a risk of accident.
Observe the load rating of the tires. The load
rating must be at least half of the GAWR of
your vehicle. Never overload the tires by
exceeding the maximum load.
Two instruction labels on your vehicle show the maximum possible load.
(1) The Tire and Loading Information placard is on the B-pillar on the driver's side. The Tire
and Loading Information placard shows the
maximum permissible number of occu-
pants and the maximum permissible vehicle
load. It also contains details of the tire sizes
and corresponding pressures for tires
mounted at the factory.
(2) The vehicle identification plate is on the B- pillar on the driver's side. The vehicle iden-
tification plate informs you of the gross
vehicle weight rating. It is made up of the
vehicle weight, all vehicle occupants, the
fuel and the cargo. You can also find infor-
mation about the maximum gross axle
weight rating on the front and rear axle.
The maximum gross axle weight rating is
the maximum weight that can be carried by
one axle (front or rear axle). Never exceed
the maximum load or the maximum gross
axle weight rating for the front or rear axle.
:B-pillar, driver's side
322Loading the vehicle
Wheels and tires