key battery MERCEDES-BENZ E-Class CABRIOLET 2014 C207 Owner's Manual

Assistance displa
y(on-board
computer) .......................................... 240
Assistance menu (on-board
computer) .......................................... 240
ASSYST PLUS Displaying a service message ........317
Hiding a service message ..............316
Notes ............................................. 316
Resetting the service interval
displa y........................................... 317
Service message ............................ 316
Special service requirements ......... 317
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................78
Function .......................................... .78
Switching off the alarm ....................78
ATTENTIO NASSIST
Activating/deactivating .................242
Display message ............................ 263
Function/notes ............................. 220
Audio system
see separate operating instructions
Authorized Centers
see Qualified specialist workshop
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshops
see Qualified specialist workshop
AUTO lights
Display message ............................ 260
see Lights
Automatic engine start (ECO start/
stop function) .................................... 169
Automatic engine switch-off (ECO
start/stop function) ..........................169
Automatic headlamp mode ..............135
Automatic transmission Automatic drive program ...............176
Changing gea r............................... 175
DIRECT SELECT leve r..................... 172
Display message ............................ 271
Drive program displa y.................... 172
Driving tips .................................... 175
Emergency running mode ..............179
Engaging drive position .................. 174
Engaging neutra l............................ 173
Engaging revers egear ................... 173
Engaging the par kposition ............ 172 Kickdow
n....................................... 175
Manual drive program ....................176
Manual drive program (vehicles
with Sports package AMG) ............177
Overview ........................................ 172
Problem (malfunction) ...................179
Progra mselector button ................175
Pulling away ................................... 167
Starting the engine ........................167
Steering wheel paddle shifters ......176
Transmission position display
(DIRECT SELECT lever) ................... 172
Transmission positions ..................174
Automatic transmission
emergency mode ............................... 179 B
Bag hook ............................................ 292
BAS (Brake Assist System) .................69
BAS PLUS (Brake Assist System
PLUS) with Cross-Traffic Assist
Function/notes ................................ 70
BAS PLUS Q (Brake Assist System
PLUS) with Cross-Traffic Assist
Important safety notes ....................70
Battery (SmartKey)
Checking .......................................... 85
Important safety notes ....................85
Replacing ......................................... 85
Battery (vehicle)
Charging ........................................ 332
Display message ............................ 262
Important safety notes ..................330
Jump starting ................................. 334
Belt force limiter
Activation ......................................... 61
Function .......................................... .61
Blind Spo tAssist
Activating/deactivating .................242
Display message ............................ 265
Notes/function .............................. 221
see Active Blind Spot Assist
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 252
Notes ............................................. 387 Index
5

Correct driver's seat position
........116
Folding the backrests forward/
back ............................................... 120
Important safety notes ..................117
Overview ........................................ 117
Seat backres tdisplay message .....272
Seat heating problem ....................123
Seat ventilation problem ................124
Storing settings (memory function) 130
Switching AIRSCARF on/off ..........124
Switching sea theating on/off .......122
Switching seat ventilation on/off ..123
Selector lever
Cleaning ......................................... 325
Sensors (cleaning instructions) .......323
Service menu (on-board computer) .243
Service products Brake fluid ..................................... 387
Coolant (engine) ............................ 388
Engine oil ....................................... 386
Fuel ................................................ 384
Important safety notes ..................384
Refrigerant (air-conditioning
system) .......................................... 389
Washer fluid .................................. .389
Service work
see ASSYST PLUS
Settings
Factory (on-board computer) .........247
On-board computer .......................243
Setting the air distribution ...............155
Setting the airflow ............................156
Side impact air bag .............................47
Side marker lamp (display
message) ............................................ 259
Side windows Cleaning ......................................... 322
Convenience closing feature ............97
Convenience opening feature ..........96
Important safety information ...........94
Opening/closing .............................. 94
Opening/closing all (Cabriolet) ........95
Problem (malfunction) .....................99
Resetting ......................................... 98
Sliding sunroof
see Panorama roof with power
tilt/sliding panel SmartKey
Changing the battery .......................85
Changing the programming .............83
Checking the battery .......................85
Convenience closing feature ............97
Convenience opening feature ..........96
Display message ............................ 274
Door central locking/unlocking .......82
Important safety notes ....................82
Loss ................................................. 87
Mechanical key ................................ 84
Opening/closing soft top .............. .101
Overview .......................................... 82
Positions (ignition lock) .................165
Problem (malfunction) .....................87
Starting the engine ........................167
Snow chains ...................................... 347
Sockets General notes ................................ 296
Rea rcompartmen t......................... 297
Soft top
AIRCAP .......................................... 107
Cleaning ......................................... 320
Closing manually in an emergency .101
Display message ............................ 273
Important safety notes ....................99
Installing/removing the AIRCAP
wind screen ................................... 108
Opening/closing (SmartKey) .........101
Opening/closing (with soft-top
switch) ........................................... 100
Problem (malfunction) ...................110
Relocking ....................................... 105
wind screen ................................... 106
Soft-top switch .................................. 100
Spare wheel Storage location ............................ 378
see Emergency spare wheel
Specialist workshop ............................ 25
Special seat bel tretractor .................. 65
Speed ,controlling
see Cruise control
Speedometer
Digital ............................................ 236
In the Instrument cluster .................31
Segments ...................................... 233
Selecting the unit of measurement 243
see Instrument cluster 16
Index

You can prevent the intervention of the 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 maneuver 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 information STEER CONTROL helps you by transmitting a
noticeable steering force to the steering
wheel in the direction required for vehicle
stabilization.
This steering assistance is provided in
particular if:
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 "Importan tsafety notes"
sectio n(Ypage 68).
If ESP ®
is malfunctioning, you will not receive
steering support from STEER CONTROL.
Power steering will, however, continue to
function. Theft deterrent locking system
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey. X
To activate with the SmartKey: remove
the SmartKey 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
SmartKey with you and lock the vehicle.
Anyone can start the engine if a valid
SmartKey has been left inside the vehicle.
i The immobilizer is always deactivated
when you start the engine.
In the event that the engine cannot be
started when the starter battery is fully
charged, the immobilizer may be faulty.
Contact an authorized Mercedes-Benz
Cente rorcall 1-800-FOR-MERCedes (in the
USA) or 1-800-387-0100 (in Canada). ATA (anti-theft alarm system)
X
To arm: lockthe vehicle with the SmartKey
or KEYLESS-GO.
Indicator lamp 0002flashes. The alarm
system is armed after approximately
15 seconds.
X To disarm: unlock the vehicle with the
SmartKey or KEYLESS-GO.
Av isual and audible alarm is triggered if the
alarm system is armed and you open:
R a door
R the vehicle with the mechanical key
R the trunk lid
R the hood 78
Theft deterrent locking systemSafety

approximately six seconds until the battery
check lamp flashes twice (Y
page 85).
i If the setting of the locking system is
changed within the signal range of the
vehicle, pressing the 000Dor000E button:
R locks or
R unlocks the vehicle
The SmartKey now functions as follows:
X To unlock the driver's door: press the
000E button once.
X To unlock centrally: press the000E
butto ntwice.
X To lock centrally: press the000Dbutton.
The KEYLESS-GO function is changed as
follows:
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 outersensor
surface on one of the door handles.
X To restore the factory settings: press
and hold down the 000Eand000D buttons
simultaneously for approximately six
seconds until the battery chec klamp
flashes twice ( Ypage 85). Mechanical key
General notes If the vehicle can no longer be locked or
unlocked with the SmartKey, use the
mechanical key.
If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the
anti-thef talarm system will be triggered
(Y page 78). There are several ways to tur
noff the alarm:
X To turn the alarm off with the
SmartKey: press the000Eor000D button
on the SmartKey.
or
X Insert the SmartKey into the ignition lock.
or
X To disarm the alarm with KEYLESS-GO:
press the Start/Stop button in the ignition
lock. The SmartKey must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
Removing the mechanical key 0002
Release catch
0003 Mechanical key
X Push release catch 0002in the direction of
the arrow and at the same time remove
mechanical key 0003from the SmartKey.
For further information about:
R unlocking the driver's door (Y page 90)
R unlocking the trunk (Y page 93)
R locking the vehicle (Y page 90)84
SmartKeyOpening and closing

SmartKey battery
Important safety notes G
WARNING
Batteries contain toxic and corrosive
substances. If batteries are swallowed, it can
result in severe health problems. There is a
risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist
workshop.
Checking the battery X
Press the 000Dor000E button.
The battery is working properly if battery
check lamp 0002lights up briefly.
The battery is discharged if battery check
lamp 0002does not light up briefly.
X Change the battery (Y page 85).
i If the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the 000Dor000E button:
R locks or
R unlocks the vehicle
i You can get a battery at any qualified
specialist workshop. Replacing the battery You require a CR 2025 3 V cell battery.
X
Take the mechanical key out of the
SmartKey (Y page 84). 0002
Battery compartment cover
0003 Mechanical key
X Press mechanical key 0003into the opening
in the SmartKey in the direction of the
arrow until battery compartment cover 0002
opens. Do not hold battery compartment
cover 0002closed while doing so.
X Remove battery compartment cover 0002. 0023
Battery
X Repeatedly tap the SmartKey against your
palm until battery 0023falls out.
X Insert the new battery with the positive
terminal facing upwards. Use a lint-free
cloth to do so. SmartKey
85Opening and closing Z

X
Make sure that the surface of the battery is
free of lint, grease and other contaminants.
X Insert the front tabs of battery
compartment cover 0002into the housing
first and then press to close it.
X Insert mechanical key 0003into the
SmartKey (Y page 84).
X Check the function of all SmartKey buttons
on the vehicle. 86
SmartKeyOpening and closing

Problems with the SmartKey
Problem Possible causes/consequences and
0001 Solutions
You can no longer lock
or unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged.
X
Check the SmartKey battery (Y page 85) and replace it if
necessary (Y page 85).
If this does not work:
X Lock (Y page 90) or unlock (Y page 90) the vehicle using
the mechanical key. The SmartKey is faulty.
X
Lock (Y page 90) or unlock (Y page 90) the vehicle using
the mechanical key.
X Have the SmartKey checked at a qualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS-GO. The SmartKey battery is discharged or nearly discharged.
X
Check the SmartKey battery (Y page 85) and replace it if
necessary (Y page 85).
If this does not work:
X Lock (Y page 90) or unlock (Y page 90) the vehicle using
the mechanical key. There is interference from a powerful source of radio waves.
X Lock (Y page 90) or unlock (Y page 90) the vehicle using
the mechanical key. KEYLESS-GO is malfunctioning.
X
Lock/unlock the vehicle using the remote control function of
the SmartKey.
X Have the vehicle and SmartKey checked at a qualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote
control function:
X Lock (Y page 90) or unlock (Y page 90) the vehicle using
the mechanical key.
X Have the vehicle and SmartKey checked at a qualified specialist
workshop. You have lost a
SmartKey. X
Have the SmartKey deactivated at a qualified specialist
workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. SmartKey
87Opening and closing Z

Problem Possible causes/consequences and
0001 Solutions
You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. The engine cannot be
started using the
SmartKey. The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 332).
or
X Jump-start the vehicle (Y page 334).
or
X Consult a qualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle. The vehicle is locked.
X
Unlock the vehicle and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the SmartKey in the ignition lock. Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the vehicle. Always keep the SmartKey out of
reach of children.
G
WARNING
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
You should preferably place luggage or loads
in the cargo compartment. Observe the
loading guidelines (Y page 288). Unlocking and opening doors from
the inside
! The side windows will not open/close if
the battery is discharged or if the side
windows have iced up. It will then not be
possible to close the door. Do not attempt
to force the door closed. You could 88
DoorsOpening and closing

The trunk lid emergency release does not
open the trunk lid if the battery is
disconnected or discharged.
Trunk lid emergency release light:
R
emergency release button 0002flashes for
30 minutes after the trunk lid is opened.
R emergency release button 0002flashes for
60 minutes after the trunk lid is closed. Side windows
Important safety notes
G
WARNING
While opening the side windows, body parts
could become trapped between the side
window and the door frame as the side
window moves. There is a risk of injury.
Make sure that nobody touches the side
window during the opening procedure. If
somebody becomes trapped, release the
switch or pull the switch to close the side
window again. G
WARNING
While opening the side windows, body parts
in the closing area could become trapped.
There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure. If
somebody becomes trapped, release the
switch or press the switch to open the side
window again. G
WARNING
If children operate the side windows they
could become trapped, particularly if they are
left unsupervised. There is a risk of injury.
Activate the override feature for the rear side
windows. When leaving the vehicle, always
take the SmartKey with you and lock the
vehicle. Never leave children unsupervised in
the vehicle. Side window reversing feature
The side windows are equipped with an
automatic reversing feature. If a solid object
blocks or restricts a side window during the
closing process, the side window opens again
automatically. However, the automatic
reversing feature is only an aid and does not
relieve you of the responsibility of paying
attention when closing a side window. G
WARNING
The reversing feature does not react:
R to soft, light and thin objects, e.g. small
fingers
R over the last 1/6 in(4 mm) of the closing
movement
R during resetting
R when closing the side window again
manually immediately after automatic
reversing
This means that the reversing feature cannot
prevent someone being trapped in these
situations. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure. If
someone becomes trapped, press the switch
to open the side window again. Opening and closing the side
windows
The switches for all side windows are located
on the driver's door. There is also a switch on
the front-passenger door as well as on the
doors in the rear compartment on the left and
right-hand sides for the respective side
window.
The switches on the driver's door take
precedence. 94
Side windowsOpening and closing

Switching the seat heating on/off
Activating/deactivating G
WARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to excessively high
temperatures may be affected or they may
even suffer burn-like injuries. There is a risk
of injury.
Therefore, do not switch the seat heating on
repeatedly. Driver's and front-passenger seat
The three red indicator lamps in the button
indicate the heating level you have selected.
The system automatically switches down
from level
3to level 2after approximately
eight minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 165).
X To switch on: press button0002repeatedly
until the desired heating level is set.
X To switch off: press button0002repeatedly
until all the indicator lamps go out. i
If the battery voltage is too low, the seat
heating may switch off. 122
SeatsSeats, steering wheel and mirrors