2018 MERCEDES-BENZ C-CLASS CABRIOLET warning lights

Index....................................................... 4
Digital Operator's Manual..................26
Introduction .......................................... .26
Operation ............................................... 26
Introduction ......................................... 27
Protecting the environment ...................2 7
Genuine Mercedes-Benz parts .............. .27
Operator's Manual ................................. 28
Service and vehicle operation ................2 8
Operating safety .................................... 30
QR codes for the rescue card ................3 2
Data stored in the vehicle ...................... 32
Information on copyright ....................... 34
At a glance ........................................... 35
Cockpit .................................................. 35
Instrument cluster ................................. 36
Multifunction steering wheel ................. 37
Center console ...................................... 38
Overhead control panel .........................4 1
Door control panel ................................. 42
Safety ................................................... 43
Panic alarm ............................................ 43
Occupant safety .................................... 43
Children in the vehicle ........................... 59
Pets in the vehicle ................................. 64
Driving safety systems ........................... 64
Protection against theft .........................7 4
Opening and closing...........................76
SmartKey ............................................... 76
Doors ..................................................... 81
Trunk ..................................................... 83
Side windows ......................................... 85
Soft top ................................................ .88
Seats, steering wheel and mirrors ....94
Correct driver's seat position ................9 4
Seats ..................................................... 94
Steering wheel ..................................... 100
Mirrors ................................................. 103 Memory function ................................. 105
Lights and windshield wipers
..........107
Exterior lighting ................................... 107
Interior lighting .................................... 110
Replacing bulbs ................................... 111
Windshield wipers ................................ 111
Climate control ................................. 115
Overview of climate control systems ... 115
Operating the climate control sys-
tems .................................................... 116
Air vents .............................................. 120
Driving and parking ..........................122
Notes on breaking-in a new vehicle ..... 122
Driving ................................................. 122
DYNAMIC SELECT switch .................... 130
Automatic transmission ....................... 132
Refueling ............................................. 141
Parking ................................................ 143
Driving tips .......................................... 146
Driving systems ................................... 151
On-board computer and displays ....192
Important safety notes ........................ 192
Displays and operation ........................ 192
Menus and submenus ......................... 196
Display messages ................................ 211
Warning and indicator lamps in the
instrument cluster ............................... 241
Multimedia system ...........................253
General notes ...................................... 253
Important safety notes ........................ 253
Function restrictions ............................ 253
Operating system ................................ 254
Stowage and features ......................263
Stowage areas ..................................... 263
Features .............................................. 267
Maintenance and care ......................281
Engine compartment ........................... 281
2Contents

Setting the blower output of the
AIRSCARF vents ............................. 121
Setting the center air vents ........... 120
Setting the side air vents ............... 120
Switching AIRSCARF on/off .......... 100
Air-conditioning system
see Climate control
Airbag
Warning lamp ................................. 247
AIRCAP
Cleaning instructions ..................... 289
Extending/retracting ....................... 91
Important safety notes .................... 91
AIRMATIC
Display message ............................ 228
Function/notes ............................. 163
Setting the normal vehicle level ..... 164
Setting the raised vehicle level ...... 164
AIRSCARF
Switching on/off ........................... 100
AIRSCARF vents
Setting the blower output .............. 121
Alarm
ATA (Anti-Theft Alarm system) ......... 74
Switching off (ATA) .......................... 74
Switching the function on/off
(ATA) ................................................ 74
Alarm system
see ATA (Anti-Theft Alarm system)
All-wheel drive
see 4MATIC (permanent four-
wheel drive)
AMG
Adaptive sport suspension sys-
tem ................................................ 165
Performance Seat ............................ 98
Switchable performance exhaust
system ........................................... 129
AMG menu (on-board computer) ..... 208
Animals
see Pets in the vehicle
Anti-lock braking system
see ABS (Anti-lock Braking System)
Anti-skid chains
see Snow chains
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system) AppCode
see QR code
Armrest
Stowage compartment .................. 264
Ashtray ............................................... 269
Assistance display (on-board com-
puter) .................................................. 203
Assistance menu (on-board com-
puter) .................................................. 204
Assistance system
see Driving systems
ASSYST PLUS
Displaying a service message ........ 285
Driving abroad ............................... 286
Hiding a service message .............. 285
Rese
tting the service interval dis-
play ................................................ 286
Service message ............................ 285
Special service requirements ......... 286
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 74
Function ........................................... 74
Switching off the alarm .................... 74
ATTENTION ASSIST
Activating/deactivating ................. 205
Display message ............................ 228
Displaying level .............................. 181
Function/notes ............................. 180
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 224
see Lights
Automatic car wash (care) ............... 286
Automatic engine start (ECO start/
stop function) .................................... 128
Automatic engine switch-off (ECO
start/stop function) .......................... 127
Automatic headlamp mode .............. 107
Automatic transmission
Accelerator pedal position ............. 135
Changing gear ............................... 135
DIRECT SELECT lever ..................... 133
Display message ............................ 236
Double-clutch function .................. 135
Index5

Data
see Technica ldat a
Dat acarrier
Selecting ........................................ 20 1
Daytime runnin glam pmode
see Daytime running lamp s
Daytime runnin glamps
Displa ymessage ............................ 22 4
Function/notes ............................ .107
Switching on/off (on-board com-
puter) ............................................. 207
Diagnostics connection ......................31
Digital Operator's Manua l
Help ................................................ .26
Introduction .....................................2 6
Digital speedometer .........................197
DIRECT SELECT lever
Automatic transmission ................. 133
Display
see Display messages
see Warning and indicator lamps
Display messages
ASSYST PLUS ................................ 285
Calling up (on-board computer) ..... 212
Driving systems .............................2 28
Engine ............................................ 225
General notes ................................ 211
Hiding (on-board computer) ........... 211
Introduction ................................... 211
Lights ............................................. 224
Safety systems .............................. 213
SmartKey ....................................... 240
Tires ............................................... 234
Vehicle ...........................................2 36
Distance control
see Driving system
Distance Pilot DISTRONIC
Activating ....................................... 155
Activation conditions ..................... 155
Cruise control lever ....................... 155
Display Message .............. .............. 231
Di

splays in the instrument cluster .. 157
Driving tips ....................................1 59
Driving with Distance Pilot
DISTRONIC ....................................1 56
Function/notes .............................1 53
Important safety notes .................. 154
Setting a speed .............................. 157 Setting the specified minimum
distance ......................................... 157
Stopping ........................................ 156
Switching off .................................. 158
with Steering Pilot ......................... 159
Distance recorder .............................1 96
Distance warning (warning lamp) .... 250
Distance warning function
Function/notes ................................ 66
Distance warning system
see Active Brake Assist
Doors
Automatic locking (switch) ...............8 2
Central locking/unlocking
(SmartKey) ...................................... .76
Control panel .................................. .42
Display message ............................ 238
Emergency locking ........................... 83
Emergency unlocking ....................... 83
Important safety notes .................... 81
Opening (from inside) ...................... 81
Drinking and driving ......................... 147
Drive program
Automatic transmission ................. 136
SETUP (on-board computer,
Mercedes-AMG vehicles) ............... 209
Drive programs
Display (DIRECT SELECT lever) ...... 134
DYNAMIC SELECT switch .............. 130
Driver's door
see Doors
Driver's seat
see Seat
Driving abroad
Mercedes-Benz Service ................. 286
Driving Assistance PLUS package ... 186
Driving on flooded roads .................. 150
Driving safety system
Active Brake Assist .......................... 65
Crosswind Assist ............................. 71
Drivin g safety systems
ABS (Anti-lock Braking System) ....... 64
Active Brake Assist with cross-
traffic function ................................. 71
ADAPTIVE BRAKE ............................. 71
Adaptive Brake Assist ...................... 67
BAS (Brake Assist System) .............. 65
Index9

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

Activating/deactivating (on-
board computer) ............................ 205
Display message ............................ 229
Function/information .................... 184
see Active Lane Keeping Assist
Lane Tracking package ..................... 182
Lap time (RACETIMER) ...................... 210
LATCH-type (ISOFIX) child seat
anchors ................................................ 61
License plate lamp (display mes-
sage) ................................................... 224
Light function, active
Display message ............................ 224
Light switch
Operation ....................................... 107
Lights
Adaptive Highbeam Assist ............. 109
Automatic headlamp mode ............ 107
Cornering light function ................. 109
Fogged up headlamps .................... 110
General notes ................................ 107
Hazard warning lamps ...................1 09
High beam flasher .......................... 108
High-beam headlamps ................... 108
Light switch ................................... 107
Low-beam headlamps .................... 108
Parking lamps ................................ 108
Rear fog lamp ................................ 108
Setting exterior lighting ................. 107
Standing lamps .............................. 108
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 207
Turn signals ................................... 108
see Interior lighting
see Replacing bulbs
Loading guidelines ............................ 263
Locking
see Central locking
Locking (doors)
Automatic ........................................ 82
Emergency locking ........................... 83
From inside (central locking but-
ton) ..................................................8 2
Locking centrally
see Central locking Low-beam headlamps
Display message ............................ 224
Switc
hing on/off .......................... .108
Lubricant additives
see Additives (engine oil)
Luggage cover
see Trunk partition
Lumbar support
Adjusting the 4-way lumbar sup-
port ..................................................9 8
M
M+S tires............................................ 314
Malfunction message
see Display messages
Matte finish (cleaning instruc-
tions) .................................................. 289
mbrace
Call priority ....................................2 74
Display message ............................ 218
Downloading destinations
(COMAND) ..................................... 274
Downloading routes ....................... 277
Emergency call .............................. 272
General notes ................................ 271
Geo fencing ................................... 277
Info call button .............................. 273
Locating a stolen vehicle ...............2 76
Remote fault diagnosis .................. 276
Remote vehicle locking .................. 275
Roadside assistance button ........... 273
Search & Send ............................... 275
Self-test ......................................... 271
Speed alert .................................... 277
System .......................................... 271
Triggering the vehicle alarm ........... 277
Vehicle remote unlocking .............. 275
Mechanical key
Function/notes ................................ 78
General notes .................................. 78
Inserting .......................................... 78
Locking vehicle ................................ 83
Removing ......................................... 78
Unlocking the driver's door .............. 83
Media Interface
see Digital Operator's Manual
Memory card (audio) ......................... 201
14Index

Introduction to the restraint sys-
tem .................................................. 43
Occupant Classification System
(OCS) ............................................... 51
PASSENGER AIR BAG indicator
lamps ............................................... 44
Pets in the vehicle ........................... 64
PRE-SAFE
®(anticipatory occu-
pant protection) ............................... 58
PRE-SAFE
®PLUS (anticipatory
occupant protection PLUS) .............. 58
Restraint system warning lamp ........ 44
Seat belt .......................................... 44
OCS
Conditions ....................................... 51
Faults ............................................... 55
Operation .........................................5 2
System self-test ............................... 54
Odometer ........................................... 196
Oil
see Engine oil
On-board computer
AMG menu ..................................... 208
Assistance graphic menu ............... 203
Assistance menu ........................... 204
Display messages .......................... 211
Displaying a service message ........ 285
Displays and operation .................. 192
Distance Pilot DISTRONIC ............. 158
Factory settings ............................. 207
G-Meter ......................................... 208
Head-up display ............................. 195
Important safety notes .................. 192
Instrument cluster menu ............... 207
Lights menu ................................... 207
Media menu ................................... 200
Menu overview .............................. 196
Message memory .......................... 212
Navigation menu ............................ 198
RACETIMER ................................... 210
Radio menu ................................... 200
Service menu ................................. 203
Settings menu ............................... 203
Standard display ............................ 196
Telephone menu ............................ 202
Trip menu ...................................... 196
Video DVD operation ..................... 201 On-board diagnostic interface
see Diagnostics connection
Operating safety
Declaration of conformity ................ 30
Important safety notes .................... 30
Operating system
see On-board computer
Operatio n
Di

gital Operator's Manual ................ 26
Operator's Manual
Overview .......................................... 28
Vehicle equipment ........................... 28
Outside temperature display ........... 193
Overhead control panel ...................... 41
P
Paddle shifters
see Steering wheel paddle shifters
Paint code number ............................ 339
Paintwork (cleaning instructions) ... 288
Panic alarm .......................................... 43
Parcel net ........................................... 267
Parking
Important safety notes .................. 143
Parking brake ................................ 145
Parking position for the exterior
mirror on the front-passenger
side ................................................ 104
Rear view camera .......................... 173
Switching off the engine ................ 144
see Parking Assist PARKTRONIC
Parking aid
see 360° camera
see Exterior mirrors
see Parking Assist PARKTRONIC
see Parking Pilot
see Rear view camera
Parking Assist
Display message ............................ 230
Parking Assist PARKTRONIC
Deactivating/activating ................. 172
Driving system ............................... 170
Function/notes ............................. 170
Important safety notes .................. 170
Problems (malfunctions) ................ 172
Sensor range ................................. 170
Warning display ............................. 171
16Index

Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and at
regular intervals while the engine is running.
Therefore, malfunctions can be detected in
good time.
The6 restraint system warning lamp on the
instrument cluster lights up when the ignition is
switched on. It goes out no later than a few sec-
onds after the vehicle is started. The compo-
nents of the restraint system are in operational
readiness.
A malfunction has occurred if the 6restraint
system warning lamp:
Rdoes not light up after the ignition is switched
on
Rdoes not go out after a few seconds with the
engine running
Rlights up again while the engine is running
GWARNING
If the restraint system is malfunctioning,
restraint system components may be trig-
gered unintentionally or may not deploy as
intended during an accident. This can affect
for example the Emergency Tensioning
Device or the air bag. This poses an increased
risk of injury or even fatal injury.
Have the restraint system checked and
repaired in a qualified specialist workshop as
soon as possible.
PASSENGER AIR BAG indicator lamp
PASSENGER AIR BAG ON indicator lamp :and
PASSENGER AIR BAG OFF indicator lamp ;are
part of the Occupant Classification System
(OCS). The indicator lamps display the status of the
front-passenger front air bag.
RPASSENGER AIR BAG ON lights up for 60 sec-
onds, subsequently both indicator lamps are
off (PASSENGER AIR BAG ON and OFF): the
front-passenger front air bag is able to deploy
in the event of an accident.
RPASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
If the PASSENGER AIR BAG ON indicator lamp is
off, only the PASSENGER AIR BAG OFF indicator lamp shows the status of the front-passenger
front air bag. The PASSENGER AIR BAG OFF
indicator lamp may be lit continuously or be off.
Depending on the person in the front-passenger
seat, the front-passenger front air bag must
either be deactivated or enabled; see the fol-
lowing points. You must make sure of this both
before and during a journey.
RChildren in a child restraint system:
whether the front-passenger front air bag is
enabled or deactivated depends on the instal-led child restraint system, and the age and
size of the child. Therefore, be sure to observe
the notes on the "Occupant Classification
System (OCS)" (
Ypage 51) and on "Chil-
dren in the vehicle" (Ypage 59). There you
will also find instructions on rearward and
forward-facing child restraint systems on the
front-passenger seat.
RAll other persons: depending on the classi-
fication of the person in the front-passenger
seat, the front-passenger front air bag is ena-
bled or deactivated (
Ypage 51). Be sure to
observe the notes on "Seat
belts“ (
Ypage 44) and "Air bags"
(Ypage 48). There you can also find infor-
mation on the correct seat position.
Seat belts
Introduction
Seat belts are the most effective means of
restricting the movement of vehicle occupants
in the event of an accident or the vehicle rolling over. This reduces the risk of vehicle occupants
coming into contact with parts of the vehicle
interior or being ejected from the vehicle. Fur-
thermore, the seat belt helps to keep the vehicle
44Occupant safety
Safety

XAdjust the seat (Ypage 94).
The seat backrest must be in an almost
upright position.
XPull the seat belt smoothly out of seat-belt
extender =and engage belt tongue ;into
belt buckle :.
The seat belt on the driver’s seat and the
front-passenger seat may be tightened auto-
matically, see "Belt adjustment"
(
Ypage 48).
XIf necessary, pull up on the shoulder section
of the seat belt to tighten the belt across your
body.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor to
securely fasten child restraint systems in the
vehicle. Further information can be found under
"Special seat belt retractor" (
Ypage 60).
Releasing seat belts
!Make sure that the seat belt is fully rolled up.
Otherwise, the seat belt or belt tongue will be
trapped in the door or in the seat mechanism.
This could damage the door, the door trim
panel and the seat belt. Damaged seat belts
can no longer fulfill their protective function
and must be replaced. Visit a qualified spe-
cialist workshop.
XPress the release button in the belt buckle,
hold the belt tongue firmly and guide the belt
back.
Seat belt adjustment
The belt adjustment is a convenience function
integrated into PRE-SAFE®. With this function,
the driver's and front-passenger seat belts are
adjusted to the upper body of the vehicle occu-
pant.
The seat belt strap will slightly tighten if:
Rthe belt tongue is inserted into the buckle and
Rthe ignition is switched on
The seat belt adjustment will apply a certain
tightening force if any slack is detected between
the vehicle occupant and the seat belt. Do not
grab hold of the seat belt.
You can switch the seat belt adjustment on and
off using the multimedia system. Information on
switching the seat belt adjustment on and off
can be found in the Digital Operating Instruc-
tions.
Belt warning for the driver and front
passenger
The 7 seat belt warning lamp in the instru-
ment cluster is a reminder that all vehicle occu-
pants must wear their seat belts. It may light up
continuously or flash. In addition, there may be
a warning tone.
Regardless of whether the driver's seat belt has
already been fastened, the 7seat belt warn-
ing lamp lights up for six seconds each time the
engine is started. If the doors are closed and the
driver's or front-passenger seat belt has not
been fastened, the 7seat belt warning lamp
lights up again after the six seconds. As soon as
the driver's and front-passenger seat belts are
fastened or a door is opened again, the 7
seat belt warning lamp goes out.
If the driver's seat belt is not fastened after the
engine is started, an additional warning tone will sound. The warning tone switches off after six
seconds or once the driver's seat belt is fas-
tened.
If the vehicle's speed exceeds 15 mph
(25 km/h) once and the driver's and front-
passenger seat belts are not fastened, a warning
tone sounds. A warning tone also sounds with
increasing intensity for 60 seconds or until the
driver or front passenger have fastened their
seat belts.
If the driver or front passenger unfasten their
seat be lts d
uring the journey, the seat belt warn-
ing is activated again.
Air bags
Introduction
The installation point of an air bag can be rec-
ognized by the AIRBAG marking.
An air bag complements the correctly fastened
seat belt. It is no substitute for the seat belt. The
air bag provides additional protection in appli-
cable accident situations.
Not all air bags are deployed in an accident. The
different air bag systems function independ-
ently from one another (
Ypage 56).
However, no system available today can com-
pletely eliminate injuries and fatalities.
It is also not possible to rule out a risk of injury
caused by an air bag due to the high speed at
which the air bag must be deployed.
48Occupant safety
Safety