technical data MERCEDES-BENZ C-CLASS CABRIOLET 2016 Owners Manual

ASSYST PLUS ...................................... 313
Care ..................................................... 314 Breakdown assistance
.....................323
Where will I find...? .............................. 323
Flat tyre ............................................... 326
Battery (vehicle) .................................. 330
Jump-starting ....................................... 333
Towing away and tow-starting ............. 336
Fuses ................................................... 339 Wheels and tyres
.............................. 342
Important safety notes ........................ 342
Operation ............................................ 342
Winter operation .................................. 344
Tyre pressure ....................................... 345
Changing a wheel ................................ 350
Wheel-tyre combination ....................... 355
Emergency spare wheel ....................... 356 Technical data
................................... 358
Information on technical data .............. 358
Vehicle electronics .............................. 358
Identification plates ............................. 359
Service products and capacities .......... 360
Vehicle data ......................................... 367
Trailer tow hitch ................................... 369 Contents
3

Deactivating ................................... 169
Display message ............................ 263
Driving system ............................... 167
General notes ................................ 167
Important safety note
s.................. 167
LIM indicator lamp ......................... 168
Selecting ........................................ 168
Setting a speed .............................. 169
Storing and maintaining current
speed ............................................. 168
Storing the current speed or call-
ing up the last stored speed .......... 168
Cup holder
Centre console .............................. 301
Important safety notes .................. 301
Cycle rack .......................................... 217 D
Data see Technical data
Data carrier
Selecting ........................................ 229
Data modem mode
Telephone with Bluetooth ®
(SAP
profile) ........................................... 294
Daytime driving lights
Display message ............................ 253
Function/note s............................. 114
Dealership
see Qualified specialist workshop
Declarations of conformity ................. 29
Diagnostics connection ...................... 30
Diesel .................................................. 363
Digital Owner's Manual
Help ................................................. 26
Introduction ..................................... 26
Digital speedometer ......................... 225
Dipped-beam headlamps
Display message ............................ 253
Replacing bulb s............................. 120
Setting for driving abroad (sym-
metrical) ........................................ 114
Setting for driving on the right/
left ................................................. 236
Switching on/of f........................... 115
DIRECT SELECT lever
Automatic transmission ................. 145 Display
see Display message
see Warning and indicator lamps
Display message
Driving systems ............................. 258
Display messages
ASSYST PLUS ................................ 313
Calling up (on-board computer) ..... 241
Engine ............................................ 254
General information ....................... 240
Hiding (on-board computer) ........... 241
Introduction ................................... 240
Key ................................................ 272
Lights ............................................. 253
Safety systems .............................. 242
Tyres .............................................. 265
Vehicle ........................................... 267
Distance warning function
Function/note s................................ 70
Distance warning signal (warning
lamp) .................................................. 281
Distance warning system
see COLLISION PREVENTION
ASSIST PLUS
DISTRONIC PLUS
Activating ....................................... 173
Activation conditions ..................... 173
Cruise control lever ....................... 172
Deactivating ................................... 177
Display message ............................ 261
Displays in the instrument cluster .. 176
Driving tip s.................................... 177
Driving with DISTRONIC PLUS ....... 174
Function/note s............................. 171
Important safety notes .................. 171
Selecting ........................................ 173
Setting the specified minimum
distance ......................................... 175
Setting the speed .......................... 175
Stopping ........................................ 175
with Steering Assist and Stop&Go Pilot ............................................... 178
Door
Automatic locking (switch) ............... 88
Central locking/unlocking (key) ...... 82
Control panel ................................... 41
Display message ............................ 269
Emergency locking ........................... 89 Index
9

DYNAMIC SELECT switch
Automatic transmission ................ .141
Climate control (THERMATIC 2-
zone) .............................................. 126
Manual transmission ..................... .141 E
EASY-ENTRY feature Function/notes ............................ .108
EASY-ENTRY system ......................... 104
EASY-EXIT feature
Function/notes ............................ .108
EBD (electronic brake force distri-
bution)
Display message ............................ 244
Function/notes ................................ 75
ECO display
Function/notes ............................ .163
On-board computer ....................... 225
ECO start/stop function
Automatic engine start .................. 138
Automatic engine switch-off .......... 137
Climate control .............................. 126
Deactivating/activating ................. 139
General information ....................... 137
Important safety notes .................. 137
Introduction ................................... 137
Electromagnetic compatibility
Declaration of conformity ................ 29
Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 59
Emergency key
Unlocking the driver's door .............. 89
Emergency key element
Function/notes ................................ 83
General notes .................................. 83
Inserting .......................................... 84
Locking vehicle ................................ 89
Removing ......................................... 84
Emergency release
Driver's door ................................... .89
Emergency spare wheel
General note s ................................ 357
Im portant safety notes .................. 356 Removing .......................................3
57
Technical data ............................... 357
Emergency unlocking
Vehicle ............................................. 89
Engine
Display message ............................ 254
ECO start/stop function ................ 137
Engine number ............................... 360
Jump-starting ................................. 333
Running irregularl y......................... 140
Starting (important safety notes )... 134
Starting problems .......................... 140
Starting the engine with the key .... 135
Starting with the Start/Stop but-
ton ................................................. 135
Stopping ........................................ 160
Tow-starting (vehicle) ..................... 339
Warning lamp (engine diagnos-
tics) ............................................... 278
Engine electronics
Notes ............................................. 358
Problem (fault) ............................... 140
Engine oil
Additives ........................................ 366
Checking the oil level ..................... 310
Checking the oil level using the
dipstick .......................................... 310
Display message ............................ 256
Filling capacity ............................... 365
General notes ................................ 365
Notes about oil grade s................... 365
Notes on oil level/consumption .... 310
Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 237
temperature (on-board computer, Mercedes-Benz C 450 AMG
4MATIC) ......................................... 237
Topping up ..................................... 311
Entering an address
See also Digital Owner's Manua l... 284
Environmental protection
Returning an end-of-life vehicle ....... 27
ESP ®
(Electronic Stability Pro-
gram)
Activating/deactivating
(Mercedes-Benz C 450 AMG
4MATIC) ........................................... 74 Index
11

Warning lamp ................................. 277
Start/Stop button
Key position s ................................ .133
Starting the engine ........................ 135
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 134
STEER CONTROL .................................. 78
Steering
Display message ............................ 270
Warning lamps ............................... 283
Steering Assist and Stop&Go Pilot
(DISTRONIC PLUS)
Display message ............................ 263
Steering assistant STEER CON-
TROL
see STEER CONTROL
Steering wheel
Adjusting (electrically) ................... 108
Adjusting (manually) ...................... 107
Button overview ............................... 36
Buttons (on-board computer) ......... 221
Cleaning ......................................... 321
EASY ENTRY/EXIT feature ............. 108
Important safety notes .................. 107
Storing settings (memory func-
tion) ............................................... 112
Steering wheel gearshift paddles .... 150
Stopwatch (RACETIMER) ................... 239
Stowage areas ................................... 296
Stowage compartment
Map pockets .................................. 298
Stowage compartments
Armrest (under) ............................. 298
Centre console .............................. 297
Cup holde r..................................... 301
Door ............................................... 298
Glove compartment ....................... 297
Important safety information ......... 296
Spectacles compartment ............... 297
see Stowage areas
Stowage net ....................................... 298
Stowage space
Stowage net ................................... 298
Stowage well beneath the boot
floor .................................................... 300 Summer tyres
In winter ........................................ 344
Sun visor ............................................ 302
Suspension setting
AIRMATIC ...................................... 183
Suspension settings
AMG RIDE CONTROL sports sus-
pension .......................................... 183
SETUP (on-board computer) .......... 238
Switching
the interior motion sensor on/of f.... 79
Switching on media mode
Via the device list .......................... 295 T
Tail lamps Display message ............................ 253
Technical data
Capacities ...................................... 360
Drawbar load (maximum) ............... 369
Information .................................... 358
Trailer load s................................... 369
Vehicle data ................................... 367
Telephone
Accepting a call (multifunction
steering wheel) .............................. 231
Authorising a mobile phone (con-
necting) ......................................... 291
Connecting a Mobile phone (gen-
eral information) ............................ 290
Display message ............................ 271
Introduction ................................... 230
Menu (on-board computer) ............ 230
Number from the phone book ........ 231
Redialling ....................................... 231
Rejecting/ending a call ................. 231
See also Digital Owner's Manua l... 284
Switching between mobile
phones ........................................... 292
Telephone compartment ................ 298
see Mobile phone
Telephone module with Bluetooth ®
(SAP profile) Activating and connecting the
module ........................................... 293
Charging a mobile phone ............... 294
Connecting the mobile phone ........ 293 Index
21

Data acquisition ............................... 31
Display message ............................ 267
Electronics ....................................
.358
Equipment ....................................... 28
Implied warranty .............................. 31
Individual settings .......................... 232
Leaving parked up ......................... 163
Locking (in an emergency) .............. .89
Locking (key) ................................... 82
Lowering ........................................ 355
Operating safety .............................. 28
Parking .......................................... 159
Pulling away ................................... 135
Raising ........................................... 352
Registration ..................................... 31
Securing from rolling away ............ 352
Technical data ............................... 358
Towing away .................................. 336
Transporting .................................. 338
Unlocking (in an emergency) ........... 89
Unlocking (key) ................................ 82
Vehicle data ................................... 367
Vehicle data
Boot load (maximum) ..................... 367
Vehicle dimensions ........................... 367
Vehicle emergency locking ................ 89
Vehicle identification number
see VIN
Vehicle identification plate .............. 359
Vehicle level
AIRMATIC ...................................... 182
Display message ............................ 258
Vehicle tool kit .................................. 325
Video
Operating the DVD ......................... 229
See also Digital Owner's Manua l... 284
VIN
Seat ............................................... 360
Type plate ...................................... 359 W
Warning and indicator lamps ABS ................................................ 275
Brakes ........................................... 274
Distance warning signal ................. 281
ESP ®
.............................................. 275
ESP ®
OFF ....................................... 277 Fuel tank ........................................ 278
General notes ................................ 273
LIM (cruise control) ........................ 168
LIM (DISTRONIC PLUS) .................. 172
LIM (variable SPEEDTRONIC) ......... 170
Overview .......................................... 35
Parking brake ................................ 278
PASSENGER AIR BAG ...................... 43
Reserve fue
l................................... 278
Seat belt ........................................ 273
Steering ......................................... 283
Tyre pressure monitor ................... 282
Warning triangle ................................ 324
Washer fluid
Display message ............................ 271
Weather display (COMAND Online)
See also Digital Owner's Manua l... 284
Wheel and tyre combinations
Tyres .............................................. 355
Wheel bolt tightening torque ........... 355
Wheel chock ...................................... 352
Wheels
Changing a whee l.......................... 350
Changing/replacing ....................... 350
Checking ........................................ 343
Cleaning ......................................... 318
Emergency spare whee l................. 356
Fitting a new wheel ........................ 354
Fitting a wheel ............................... 351
Important safety notes .................. 342
Information on driving .................... 342
Removing a whee l.......................... 354
Snow chains .................................. 345
Storing ........................................... 351
Tightening torque ........................... 355
Wheel size/tyre size ...................... 355
Wind deflector (cleaning instruc-
tions) .................................................. 317
Windows
Cleaning ......................................... 318
see Side windows
Windscreen
Demisting ...................................... 128
Windscreen washer fluid
see Windscreen washer system
Windscreen washer system
Important safety notes .................. 367
Topping up ..................................... 312 24
Index

R
modifications, installations and conversions
R work on electronic components
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre. Vehicle registration
Mercedes-Benz may ask its Service Centres to
carry out technical inspections on certain vehi-
cles. The quality or safety of the vehicle is
improved as a result of the inspection.
Mercedes-Benz can inform you about vehicle
inspections only if it has your registration data.
It is possible that your vehicle has not yet been
registered in your name in the following cases:
R if your vehicle was not purchased at an
authorised specialist dealer.
R if your vehicle has not yet been inspected at a
Mercedes-Benz Service Centre.
It is advisable to register your vehicle with a
Mercedes-Benz Service Centre.
Inform Mercedes-Benz as soon as possible
about any change in address or vehicle owner-
ship. You can do this at a Mercedes-Benz Ser-
vice Centre, for example. Correct use
If you remove any warning stickers, you or oth-
ers could fail to recognise certain dangers.
Leave warning stickers in position.
Observe the following information when driving
your vehicle:
R the safety notes in this manual
R technical data for the vehicle
R traffic rules and regulations
R laws and safety standards pertaining to motor
vehicles Implied warranty
! Follow the instructions in this manual about
the proper operation of your vehicle as well as
about possible vehicle damage. Damage to
your vehicle that arises from culpable contra- ventions against these instructions are not
covered either by Mercedes-Benz implied
warranty or by the New or Used-Vehicle War-
ranty. QR code for rescue card
The QR code is secured in the fuel filler flap and
on the opposite side on the B-pillar. In the event of an accident, rescue services can use the QR
code to quickly find the appropriate rescue card for your vehicle. The current rescue card con-
tains, in a compact form, the most important
information about your vehicle, e.g. the routing
of the electric cables.
You can find more information under
www.mercedes-benz.de/qr-code. Data stored in the vehicle
Many of the electronic components in your vehi-
cle can store data.
These data memories temporarily or perma-
nently store technical information about:
R the vehicle's operating state
R events
R faults
In general, this technical information docu-
ments the state of a component, a module, a
system or the surroundings.
These include, for example:
R operating conditions of system components –
for example, fluid levels
R status messages concerning the vehicle and
its individual components – for example,
wheel rotational speed, vehicle speed, decel-
eration in movement, lateral acceleration,
accelerator pedal position
R malfunctions and defects in important system
components, for example, lights, brakes
R vehicle reactions and operating conditions in
special driving situations – for example, air-
bag deployment, intervention of stability con-
trol systems
R ambient conditions – for example, outside
temperature
These data are of an exclusively technical nature
and can be used to:
R assist in detecting and rectifying faults and
defects
R analyse vehicle functions, e.g. after an acci-
dent
R optimise vehicle functions Data stored in the vehicle
31Introduction Z

The data cannot be used to trace the vehicle's
movements.
When your vehicle is serviced, technical infor-
mation can be read from the event data memory
and fault data memory.
Services include, for example:
R repair services
R service processes
R warranty events
R quality assurance
The information is read out by employees of the service network (including the manufacturer)
using special diagnostic testers. You can obtain more information there, if required.
After a fault has been rectified, the information
is deleted from the fault memory or is continu-
ally overwritten.
During vehicle operation, certain situations may
arise in which these technical data – in conjunc-
tion with other information and, if applicable,
after consultation with an approved assessor –
may be linked to an individual person.
Examples include:
R accident reports
R damage to the vehicle
R witness statements
Further additional functions that have been con- tractually agreed upon with the customer allow
certain vehicle data to be conveyed by the vehi-
cle as well. The additional functions include, for example, vehicle location in the event of an
emergency. Copyright information
Information on licences for free and open-
source software used in your vehicle can be
found on the data carrier in your vehicle docu-
ment wallet and, including updates, on the fol-
lowing website:
http://www.mercedes-benz.com/opensource 32
Copyright informationIntroduction

The roll bars are under the covers behind the
rear head restraints. They extend if systems
detect that the vehicle is in danger of overturn-
ing.
Once the roll bars are extended, an open soft top can no longer be closed. In this case, visit the
nearest qualified specialist workshop. Deployment of belt tensioners and air-
bags
Important safety notes G
WARNING
After the airbag deploys, the airbag parts are
hot. There is a risk of injury.
Do not touch the airbag parts. Have a
deployed airbag replaced at a qualified spe-
cialist workshop as soon as possible. G
WARNING
Pyrotechnical belt tensioners which have
been triggered are no longer operational and
therefore cannot protect as intended. There is an increased risk of injury, possibly even fatal.
Have pyrotechnic belt tensioners which have
been triggered replaced at a qualified special-
ist workshop immediately.
Mercedes-Benz recommends that you have the
vehicle towed to a qualified specialist workshop
after an accident. Take this into account, par-
ticularly if a seat belt tensioner was triggered or
an airbag was deployed.
An electric motor is used by PRE-SAFE ®
to trig-
ger the tightening of the seat belt in hazardous
situations. This procedure is reversible. If the belt tensioners are triggered or an airbag is
deployed, you will hear a bang, and a small
amount of powder may also be released. The
6 restraint system warning lamp lights up.
Only in rare cases will the bang affect your hear-
ing. In general, the powder released is not haz-
ardous to health but may cause short-term
breathing difficulties to persons suffering from
asthma or other pulmonary conditions. Provided it is safe to do so, you should leave the vehicle
immediately or open the window in order to pre-vent breathing difficulties.
Operation During the first stage of a collision, the restraint
system control unit evaluates important physi-
cal data relating to vehicle deceleration or accel-
eration, such as:
R duration
R direction
R intensity
Based on the evaluation of this data, the
restraint system control unit triggers the seat
belt tensioners in the event of a head-on or rear
collision.
A seat belt tensioner can be triggered only if:
R the ignition is switched on
R the components of the restraint system are
operational. You can find further information
under: "Restraint system warning lamp"
(Y page 43)
R the seat belt buckle tongue has engaged in
the belt buckle of the respective front seat
The seat belt tensioners in the rear compart-
ment are triggered independently of the lock
status of the seat belts.
If the restraint system control unit detects a
high-severity accident, in certain head-on colli-
sions, additional components of the restraint
system are deployed independently of each
other:
R Front airbags and driver's kneebag
R Headbag, if the system determines that
deployment can offer additional protection to
that provided by the seat belt
On vehicles with the automatic front-passenger
front airbag deactivation system: depending on
the person in the front-passenger seat, the
front-passenger front airbag is either disabled or
enabled. The front-passenger front airbag can
be deployed in an accident only if the 56
Occupant safetySafety

Towing a trailer
If you couple up a trailer, make sure that you
have correctly established the electrical con-
nection. This can be accomplished by checking
the trailer lighting. Towing a trailer
Important safety notes
G
WARNING
You could lose control of the vehicle/trailer
combination if it begins to swerve. The vehi-
cle/trailer combination could even overturn.
There is a risk of an accident.
On no account should you attempt to
straighten out the vehicle/trailer combina-
tion by increasing speed. Decrease your
speed and do not countersteer. Brake if nec-
essary. G
WARNING
If the maximum permissible load for a carrier system is exceeded, the carrier could come
loose from the vehicle and endanger other
road users. There is a risk of an accident and injury.
Never exceed the maximum permissible load
when using a carrier.
! If you have a trailer tow hitch retrofitted,
changes to the engine cooling system may be necessary, depending on the vehicle type.
If you have a trailer tow hitch retrofitted,
observe the anchorage points on the chassis.
Retrofitting a trailer tow hitch is only permissible
if a trailer load is specified in your vehicle docu-
ments. If this is not the case, then the vehicle is not approved for towing a trailer.
For more information, please contact a qualifiedspecialist workshop.
Exceeding the maximum permissible nose-
weight of the trailer drawbar on the ball coupling
may cause damage.
Damage may be caused to the following:
R towing vehicle
R trailer R
ball coupling
R trailer tow hitch
The vehicle/trailer combination could become
unstable.
The vehicle/trailer combination could also
become unstable if the noseweight used is lower
than the minimum permissible noseweight.
To avoid hazardous situations:
R make sure to check the noseweight before
each journey
R use a noseweight as close as possible to the
maximum noseweight
R do not exceed the maximum permissible
noseweight
R do not use a noseweight lower than the min-
imum noseweight
Make sure that the following values are not
exceeded:
R the permissible noseweight
R the permissible trailer load
R the permissible rear axle load of the towing
vehicle
R the maximum permissible gross vehicle
weight of both the towing vehicle and the
trailer
The applicable permissible values, which must
not be exceeded, can be found:
R in your vehicle documents
R on the type plates for the trailer
R on the vehicle identification plate
If the values differ, the lowest value applies.
You will find permissible trailer loads under
"Technical data" (Y page 369). G
WARNING
If you release the ball coupling or it does not
engage correctly when folding in, it will swing out. Within pivoting range of the ball coupling,
there is an increased risk of an accident and
injury.
Only release the ball coupling if the pivoting
range is unobstructed. Always make sure that the ball coupling engages when folding in.
When reversing the towing vehicle, make sure
there is nobody between the trailer and the vehi- cle. Towing a trailer
213Driving and parking Z

Couple and uncouple the trailer carefully. If you
do not couple the trailer to the towing vehicle
correctly, the trailer could become detached.
When towing a trailer, your vehicle's handling
characteristics will be different to when driving
without a trailer.
The vehicle/trailer combination:
R is heavier
R is restricted in its acceleration and gradient-
climbing capability
R has an increased braking distance
R is affected more by strong crosswinds
R demands more sensitive steering
R has a larger turning circle
This can impair the vehicle's handling charac-
teristics. Adapt your driving style accordingly.
Maintain a safe distance. Drive carefully.
When towing a trailer, always adjust your speed to the current road and weather conditions. Do
not exceed the maximum permissible speed for
your vehicle/trailer combination. Notes on towing a trailer
General notes Towing a trailer is not possible with
Mercedes
‑AMG vehicles.
When towing a trailer, set the tyre pressure on
the rear axle of the towing vehicle for a maxi-
mum load. Further information on the tyre pres-
sure table in the fuel filler flap (Y page 345).
You will find permissible trailer loads under
"Technical data" (Y page 369).
Driving tips Observe the information on ESP
®
trailer stabili-
sation (Y page 75).
The maximum permissible speed for vehicle/
trailer combinations depends on the type of
trailer. Before beginning the journey, check the
trailer's documents to see what the maximum
permitted speed is. Observe the maximum per-
missible speed in the relevant country.
For certain Mercedes-Benz vehicles, the maxi-
mum permissible rear axle load is increased
when towing a trailer. See the "Technical data"
section to find out whether this applies to your
vehicle (Y page 369). In the event of increased
rear axle load, the car/trailer combination may not exceed a maximum speed of 100 km/h for
reasons concerning the operating permit. This
also applies in countries in which the maximum
permissible speed for car/trailer combinations
is greater than 100 km/h.
When towing a trailer, your vehicle's handling
characteristics will be different to when driving
without a trailer and the vehicle will consume
more fuel.
Shift to a lower gear in good time on long and
steep downhill gradients.
This also applies in the case of:
R activated DISTRONIC PLUS
R activated cruise control
This will use the braking effect of the engine, so
less braking will be required to maintain the
vehicle speed. This relieves the load on the
brake system and prevents the brakes from
overheating and wearing too quickly. If you need
additional braking, depress the brake pedal
repeatedly rather than continuously.
Driving tips R
Maintain a greater distance to the vehicle in
front than when driving without a trailer.
R Avoid braking abruptly. If possible, brake gen-
tly at first to allow the trailer to run on. Then,
increase the braking force rapidly.
R The values given for gradient-climbing capa-
bilities from a standstill refer to sea level.
When driving in mountainous areas, note that
the power output of the engine, and conse-
quently the vehicle's gradient-climbing capa-
bility from a standstill, decrease with increas- ing altitude.
If the trailer swings from side to side:
X Do not accelerate under any circumstances.
X Do not countersteer.
X Brake, if necessary. Folding the ball coupling in/out
Folding out the ball coupling G
WARNING
If the ball coupling is not correctly engaged,
the trailer can detach. There is a risk of an
accident. 214
Towing a trailerDriving and parking