keyless MERCEDES-BENZ E-CLASS CABRIOLET 2015 Owners Manual

Digital Owner's Manual
Help ................................................ .23
Introduction .....................................23
Digital speedometer .........................216
Dipped-beam headlamps
Display message ............................ 236
Setting for driving abroad (sym-
metrical) ........................................ 114
Setting for driving on the right/
left ................................................. 224
Switching on/off ........................... 115
DIRECT SELECT lever
Automatic transmission ................. 147
Display message
Driving systems ............................ .241
KEYLESS-GO .................................. 253
Display messages
ASSYST PLUS ................................ 294
Calling up (on-board computer) ..... 229
Engine ............................................ 238
General information ....................... 229
Hiding (on-board computer) ........... 229
Key ................................................ 252
Lights ............................................. 236
Safety systems .............................. 230
Tyres .............................................. 246
Vehicle .......................................... .248
Distance warning function
Function/notes ................................ 65
Distance warning signal (warning
lamp) ................................................. .261
DISTRONIC PLUS
Activating ....................................... 170
Activation conditions ..................... 170
Deactivating ................................... 174
Display message ............................ 243
Displays in the multifunction dis-
play ................................................ 173
Function/notes ............................ .168
Important safety notes .................. 168
Selecting ........................................ 169
Setting the specified minimum
distance ......................................... 172
Stopping ........................................ 172
Door
Automatic locking (on-board com-
puter) ............................................. 225
Automatic locking (switch) .............. .82Central locking/unlocking (key) ...... 74
Control panel ..................................
.36
Display message ............................ 250
Emergency locking ........................... 82
Emergency unlocking ....................... 82
Important safety note s.................... 80
Opening (from the inside) ................ 81
Draught stop ........................................ 94
Draught stop (cleaning instruc-
tions) .................................................. 298
Drive program
Automatic ...................................... 151
Display (DIRECT SELECT lever) ...... 147
Manual ........................................... 151
Manual (vehicles with Sports
package AMG) ............................... 152
Driver's door
see Door
Driving abroad
Mercedes-Benz Service ................. 295
Symmetrical dipped beam ............. 114
Driving on flooded roads .................. 161
Driving safety system
BAS PLUS with Cross-Traffic
Assist ............................................... 62
COLLISION PREVENTION ASSIST
PLUS ................................................ 64
EBD (electronic brake force distri-bution) ............................................. 69
STEER CONTROL ............................. 71
Driving safety systems
ABS (Anti-lock Braking System) ....... 62
ADAPTIVE BRAK E............................. 69
Adaptive Brake Assist ...................... 66
Adaptive brake lights ....................... 66
BAS (Brake Assist System) .............. 62
Distance warning function ............... 65
ESP ®
(Electronic Stability Pro-
gram) ............................................... 67
Important safety guidelines ............. 61
Overview .......................................... 61
PRE-SAFE ®
Brake ............................. 69
Driving system
DISTRONIC PLUS with Steering
Assist and Stop&Go Pilot ............... 176
Driving systems
360°camera .................................. 192 8
Index

Emergency unlocking
Vehicle ............................................ .82
Engine
Display message ............................ 238
ECO start/stop function ................ 142
Engine number .............................. .337
Jump-starting ................................. 313
Running irregularl y......................... 145
Starting problems .......................... 145
Starting the engine with the key .... 141
Starting with KEYLESS GO ............. 141
Stopping ........................................ 158
Tow-starting (vehicle) ..................... 318
Warning lamp (engine diagnos-
tics) ............................................... 259
Engine electronics
Notes ............................................. 335
Problem (fault) ............................... 145
Engine jump starting
see Jump starting (engine)
Engine oil
Additives ........................................ 341
Checking the oil level ..................... 291
Checking the oil level using the
dipstick .......................................... 291
Display message ............................ 239
Filling capacity ............................... 341
Notes about oil grade s................... 340
Notes on oil level/consumption .... 291
Topping up ..................................... 292
Entering an address
See also Digital Owner's Manua l... 263
Environmental protection
Returning an end-of-life vehicle ....... 24
ESP ®
(Electronic Stability Pro-
gram)
Characteristics ................................. 67
Deactivating/activating ................. 221
Deactivating/activating (notes) ....... 68
Display message ............................ 230
Function/note s................................ 67
General notes .................................. 67
Important safety guidelines ............. 67
Trailer stabilisation .......................... 68
Warning lamp ................................. 256
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 67 Exhaust pipe (cleaning instruc-
tions)
.................................................. 301
Exterior lighting
Settings options ............................. 114
see Lights
Exterior mirrors
Adjusting ....................................... 110
Anti-dazzle mode (automatic) ........ 111
Folding in when locking (on-boardcomputer) ...................................... 227
Folding in/out (automatically )....... 111
Folding in/out (electrically) ........... 111
Out of position (troubleshooting) ... 111
Parking position ............................. 112
Resetting ....................................... 111
Storing settings (memory func-
tion) ............................................... 112 F
Fault message see Display messages
Favourites
Overview ........................................ 264
Filler cap
see Fuel filler flap
Fire extinguisher ............................... 304
First-aid kit ......................................... 304
Fitting a wheel
Fitting a wheel ............................... 332
Lowering the vehicle ...................... 332
Preparing the vehicle ..................... 329
Raising the vehicl e......................... 330
Removing a whee l.......................... 331
Securing the vehicle against roll-
ing away ........................................ 330
Flat tyre
MOExtended tyre s......................... 306
Preparing the vehicle ..................... 306
TIREFIT kit ...................................... 307
see Emergency spare wheel
Floormat ............................................. 287
Foglamps
Extended rang e.............................. 117
Frequencies
Garage door opener ....................... 285
Mobile phone ................................. 335
Two-way radio ................................ 335 10
Index

Coolan
t.......................................... 259
Engine diagnostics ......................... 259
Indicator lamps
Display message ............................ 236
see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator .... 291
Instrument cluster
Overview .......................................... 31
Setting s......................................... 223
Warning and indicator lamps ........... 31
Instrument cluster lighting .............. 223
Intelligent Light System
Activating/deactivating ................. 224
Display message ............................ 236
Overview ........................................ 116
Setting the dipped-beam head-
lamps for driving on the right/left .. 224
Interior lighting
Automatic control system .............. 118
Delayed switch-off (on-board
computer) ...................................... 225
Overview ........................................ 118
Reading lamp ................................. 118
Setting brightness for display/
switches (on-board computer) ....... 223
Interior motion sensor
Deactivating ..................................... 73
Function ........................................... 72
Priming ............................................ 73
Switching off .................................... 73
iPod ®
See also Digital Owner's Manua l... 263
ISOFIX child seat securing system .... 51J
Jack Storage location ............................ 305
Using ............................................. 330
Jump starting (engine) ...................... 313K
Key Changing the battery ....................... 77
Checking the battery ....................... 77 Display message ............................ 252
Door central locking/unlocking ....... 74
Emergency key element ................... 76
Important safety notes .................... 74
Loss ................................................. 79
Modifying the programming ............. 76
Opening/closing soft top ................. 90
Overview .......................................... 74
Positions (ignition lock) ................. 139
Problem (malfunction) ..................... 79
Starting the engine ........................ 141
Key positions
Key ................................................ 139
KEYLESS GO .................................. 139
KEYLESS-GO
Deactivation ..................................... 75
Display message ............................ 253
Locking ............................................ 75
Removing the Start/Stop button ... 140
Start/Stop button .......................... 139
Starting the engine ........................ 141
Unlocking ......................................... 75
Kickdown
Driving tips .................................... 150
Manual drive progra m.................... 153
Kneebag ............................................... 43 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 222
Display message ............................ 242
Function/information .................... 202
Lane package ..................................... 200
Lashing eyelets ................................. 276
Licence plate lamp (display mes-
sage) ................................................... 236
Light sensor (display message) ....... 237
Lighting
see Lights
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 224
Activating/deactivating the inte-
rior lighting delayed switch-off ....... 225
Active light function ....................... 117 12
Index

Panic alarm
X
To prime: press the!button :for
approximately one second.
A visual and audible alarm is triggered if the
alarm system is primed.
X To deactivate: press the!button :
again.
or
X Insert the key into the ignition lock.
or, on vehicles with KEYLESS‑GO: X Press the Start/Stop button.
The key must be in the vehicle.
The panic alarm function is only available in cer- tain countries. Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk of vehi- cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
The restraint system can also reduce the forces to which vehicle occupants are subjected during
an accident.
The restraint system comprises:
R Seat belt system
R Airbags
R Child restraint system
R Child seat securing systems The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if all vehicle
occupants always:
R fasten their seat belts correctly
(Y page 40)
R adjust their seat and head restraint properly
(Y page 99).
As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position (Y page 99).
You also have to make sure that an airbag can
inflate properly if deployed (Y page 42).
An airbag supplements a correctly fastened seat belt. As an additional safety device, the airbag
increases the level of protection for vehicle
occupants in the event of an accident. For exam-
ple, if the protection of the seat belt is sufficient in an accident, the airbags are not deployed. In
the event of an accident, only the airbags that
increase protection in the relevant accident sit- uation are deployed. However, seat belts and
airbags generally do not protect against objects penetrating the vehicle from the outside.
Information on the restraint system operation
can be found under "Triggering of belt tension-
ers and airbags" (Y page 45).
For more information about children travelling
with you in the vehicle, see "Children in the vehi-
cle" (Y page 49). Important safety notes
G
WARNING
If the restraint system is modified, it may no
longer work as intended. The restraint system
may then not perform its intended protective function by failing in an accident or triggering
unexpectedly, for example. There is an
increased risk of injury, possibly even fatal.
Never modify parts of the restraint system. Do not attempt to modify the wiring as well as
electronic components or their software.
If it is necessary to modify an airbag system to
accommodate a person with disabilities, con-
tact a Mercedes-Benz Service Centre. Occupant safety
37Safety Z

PASSENGER AIR BAG OFF indicator lamp
:
shows you whether the front-passenger front
airbag is disabled.
X Turn the key to position 1or 2in the ignition
lock or, on vehicles with KEYLESS-GO, press
the Start/Stop button once or twice.
The system carries out a self-diagnosis.
The PASSENGER AIR BAG OFF indicator lamp
must light up for approximately six seconds.
If, after the system self-test, the
PASSENGER AIR BAG OFF indicator lamp:
R lights up , the front-passenger front airbag is
disabled. It will then not be deployed in the
event of an accident.
R is not lit , the sensor system did not detect a
child restraint system with transponder for
automatic child seat recognition. If, in the
case of an accident, all deployment criteria
are met, the front-passenger front airbag is
deployed. G
WARNING
Electronic devices on the front-passenger
seat can affect the function of the automatic
child seat recognition, for example:
R laptop
R mobile phone
R transponder cards such as ski passes or
access passes
The front-passenger front airbag could deploy unintentionally or not function as intended
during an accident. This poses an increased
risk of injury or even fatal injury.
Do not place any of the devices mentioned
above or similar devices on the front-
passenger seat. Be aware of the status of the front-passenger front airbag both before and
during the journey. Child restraint system on the front-
passenger seat
General notes Accident statistics show that children secured
in the rear seats are safer than children secured
in the front seats. For this reason, Mercedes- Benz strongly advises that you fit a child
restraint system on a rear seat.
Vehicles with automatic child seat recognition
on the co-driver's seat: if it is absolutely neces-
sary to fit a child restraint system to the co-driv- er's seat, always observe the notes on "Auto-
matic child seat recognition on the co-driver's
seat" (Y page 53).
You can thus avoid the risks that could arise as
a result of:
R a child restraint system that is not detected
by the automatic child seat recognition's sen-
sor system
R the unintentional disabling of the co-driver's
front airbag
R the unsuitable positioning of the child
restraint system, e.g. too close to the dash-
board. Please observe the warning notice on the co-
driver's sun visor, see the illustration. G
WARNING
If you secure a child in a child restraint system on the front-passenger seat and the
PASSENGER AIR BAG OFF indicator lamp is
off, the front-passenger front airbag can
deploy in the event of an accident. The child
could be struck by the airbag. This poses an
increased risk of injury or even fatal injury.
Make sure that the front-passenger front air-
bag has been disabled. The PASSENGER AIR-BAG OFF indicator lamp must be lit.
NEVER use a rearward-facing child restraint on a seat protected by an ACTIVE AIRBAG in front of
it, DEATH or SERIOUS INJURY to the CHILD can
occur. Children in the vehicle
53Safety Z

and
R the vehicle speed is between approximately
7 km/h and 200 km/h
At a speed of up to approximately 70 km/h,
PRE-SAFE ®
Brake can also detect:
R stationary objects in the path of your vehicle,
e.g. stopped or parked vehicles
R pedestrians in the path of your vehicle
i If there is an increased risk of a collision,
preventive passenger protection measures
(PRE-SAFE ®
) are triggered (Y page 47).
If the risk of a collision with the vehicle in front
remains and you do not brake, take evasive
action or accelerate significantly, the vehicle
may perform automatic emergency braking up
to the point of full brake application. Automatic
emergency braking is not performed until imme- diately prior to an imminent accident.
You can prevent the intervention of PRE-SAFE ®
Brake at any time by:
R depressing the accelerator pedal further
R activating kickdown
R releasing the brake pedal
The braking action of PRE-SAFE ®
Brake is ended
automatically if:
R you manoeuvre to avoid the obstacle
R there is no longer a risk of collision
R there is no longer an obstacle detected in
front of your vehicle STEER CONTROL
General notes STEER CONTROL helps you by transmitting a
noticeable steering force to the steering wheel
in the direction required for vehicle stabilisation.
This steering support is provided in particular if:
R ESP ®
is deactivated
R both right wheels or both left wheels are on a
slippery road surface when you brake heavily
R the vehicle starts to skid
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 61). No steering support is provided by STEER CON-
TROL, if:
R ESP ®
is malfunctioning
R the steering is faulty
Power steering will, however, continue to func-
tion. Protection against theft
Immobiliser
The immobiliser prevents your vehicle from
being started without the correct key.
X To activate with the key: remove the key
from the ignition lock.
X To activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
X To deactivate: switch on the ignition.
When leaving the vehicle, always take the key
with you and lock the vehicle. Anyone can start
the engine if a valid key has been left inside the
vehicle.
i The immobiliser is always deactivated when
you start the engine. ATA (Anti-Theft Alarm system)
X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp :flashes. The alarm system
is primed after approximately 15 seconds.
X To switch off: unlock the vehicle with the key
or KEYLESS-GO.
or X Insert the key into the ignition lock. Protection against theft
71Safety Z

A visual and audible alarm is triggered if the
alarm system is primed and you open:
R a door
R the vehicle with the emergency key element
R the boot lid
R the bonnet
X To stop the alarm with the key: press the
% or& button on the key.
The alarm stops.
or X Remove the Start/Stop button from the igni-
tion lock.
X Insert the key into the ignition lock.
The alarm stops.
X To stop the alarm using KEYLESS-GO:
grasp the outside door handle. The key must
be outside the vehicle.
The alarm stops.
or X Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.
The alarm stops.
The alarm does not switch off, even if you close the open door that has triggered it, for example. Tow-away protection
Function An audible and visual alarm is triggered if your
vehicle's angle of inclination is altered while
tow-away protection is primed. This can occur if the vehicle is jacked up on one side, for exam-
ple.
Priming X
Make sure that:
R the doors are closed
R the boot lid is closed
Only then is tow-away protection primed.
X Lock the vehicle with the key or KEYLESS-GO.
Tow-away protection is primed after approx-
imately 30 seconds. Switching off X
Unlock the vehicle with the key or KEYLESS-
GO.
or X Insert the key into the ignition lock.
Tow-away protection is switched off automat-
ically.
Deactivating X
Remove the key from the ignition lock.
X Press button :.
Indicator lamp ;lights up briefly.
X Lock the vehicle with the key or KEYLESS-GO.
Tow-away protection is deactivated.
Tow-away protection remains deactivated until:
R the vehicle is unlocked again and
R a door is opened and closed again and
R the vehicle is locked again
To prevent a false alarm, deactivate tow-away
protection if you lock your vehicle and it:
R is being transported
R is being loaded onto a ferry or car transporter,
for example
R is parked on a movable surface, e.g. in a split-
level garage Interior motion sensor
Function When the interior motion sensor is primed, a
visual and audible alarm is triggered if move-
ment is detected in the vehicle interior. This can
occur if someone reaches into the vehicle inte-
rior, for example. 72
Protection against theftSafety

Priming
X
Make sure that:
R the side windows are closed
R the soft top is closed
This will prevent false alarms.
X Make sure that:
R the doors are closed
R the boot lid is closed
Only then is the interior motion sensor
primed.
X Lock the vehicle with the key or KEYLESS-GO.
The interior motion sensor is primed after
approximately 30 seconds.
Switching off X
Unlock the vehicle with the key or KEYLESS-
GO.
or X Insert the key into the ignition lock.
The interior motion sensor is automatically
switched off.
Deactivating X
Remove the key from the ignition lock.
X Press button :.
Indicator lamp ;flashes several times in
rapid succession.
X Lock the vehicle with the key or KEYLESS-GO.
The interior motion sensor is deactivated.
The interior motion sensor remains deactivated until:
R the vehicle is unlocked again and
R a door is opened and closed again and
R the vehicle is locked again To prevent a false alarm, deactivate the interior
motion sensor if you lock your vehicle and:
R people or animals remain in the vehicle
R the side windows remain open
i UK only:
your vehicle is equipped with a
double-lock function. The doors cannot be
opened from the inside if the vehicle has been locked with the key or with KEYLESS-GO
(Y page 81). Deactivate the interior motion
sensor before you lock the vehicle. The doors
can then be opened from the inside after the
vehicle has been locked from the outside.
Observe the "Important safety notes"
(Y page 80). Protection against theft
73Safety Z

X
To lock centrally: press the&button.
The key centrally locks/unlocks: R the doors
R the boot lid
R the fuel filler flap
When unlocking, the turn signals flash once.
When locking, they flash three times.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated or deactivated using the on-board computer (Y page 226).
When it is dark, the surround lighting also comes
on if it is activated in the on-board computer
(Y page 225). KEYLESS-GO
General notes Bear in mind that the engine can be started by
any of the vehicle occupants if there is a KEY-
LESS-GO key in the vehicle (Y page 141).
Locking and unlocking centrally You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you need to carry the
key with you. You can combine the KEYLESS-GO
functions with the functions of a conventional
key. Unlock the vehicle by using KEYLESS-GO,
for instance, and lock it using the &button
on the key.
When locking or unlocking with KEYLESS-GO,
the distance between the key and the corre-
sponding door handle must not be greater than 1 m.
A check which periodically establishes a radio
connection between the vehicle and the key
determines whether a valid key is in the vehicle. This occurs, for example:
R when the external door handles are touched
R when starting the engine
R whilst driving X
To unlock the vehicle: touch the inner sur-
face of the door handle.
X To lock the vehicle: touch sensor sur-
face :.
X Convenience closing feature: touch
recessed sensor surface ;for an extended
period. X
To unlock the boot lid: pull the boot lid han-
dle.
The vehicle only unlocks the boot lid.
Deactivating and activating If you do not intend to use a key for an extended
period of time, you can deactivate the KEYLESS-
GO function of the key. The key will then use very
little power, thereby conserving battery power.
For the purposes of activation or deactivation,
the vehicle does not have to be nearby. Key
75Opening and closing Z

X
To deactivate: press the&button on the
key twice in rapid succession.
The battery indicator light of the key
(Y page 77) flashes twice briefly and lights
up once. KEYLESS-GO is then deactivated.
X To activate: press any button on the key.
or X Insert the key into the ignition lock.
KEYLESS-GO and all of its associated features
are available again. Changing the settings of the locking
system
You can change the settings of the locking sys-
tem. This means that only the driver's door and
the fuel filler flap are unlocked when the vehicle is unlocked. This is useful if you frequently travelon your own.
X To change the setting: simultaneously press
the % and& buttons on the key for
approximately six seconds until the battery
check lamp flashes twice (Y page 77).
If the setting of the locking system is changed
within the signal range of the vehicle, pressing
the & or% button:
R locks or
R unlocks the vehicle
The key now functions as follows:
X To unlock: press the%button once.
X To unlock centrally: press the%button
twice.
X To lock centrally: press the&button.
The KEYLESS-GO function is changed as fol-
lows:
X To unlock the driver's door: touch the inner
surface of the door handle on the driver's
door.
X To unlock centrally: touch the inner surface
of the front-passenger door handle.
X To lock centrally: touch the outer sensor
surface on one of the door handles.
X To restore the factory settings: press and
hold down the %and& buttons simul-
taneously for approximately six seconds until
the battery check lamp flashes twice
(Y page 77). Emergency key element
General notes If the vehicle can no longer be locked or
unlocked with the key, use the emergency key
element.
If you use the emergency key element to unlock
and open the driver's door or the boot lid, the
anti-theft alarm system will be triggered. Switch
off the alarm (Y page 71).
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically.
X To unlock the fuel filler flap: insert the key
into the ignition lock.
Removing the emergency key element X
Push release catch :in the direction of the
arrow and, at the same time, remove emer-
gency key element ;from the key.
Further information about: R Unlocking the driver's door (Y page 82)
R Unlocking the boot (Y page 84)
R Locking the vehicle (Y page 82)
Inserting the emergency key element X
Push emergency key element ;fully into the
key until it engages and release catch :
returns to its basic position. 76
KeyOpening and closing