Page 353 of 801

352 Control systemsVoice Control troubleshootingHelp function
To support the user, the Voice Control Sys-
tem contains an extensive help function.
The help function gives you:
General hints on how to best use the
Voice Control System
A listing of all available commands
Help commands
“Help voice control”
Using the command “Help voice control”
will give you information on how to best
use the Voice Control System.
“Help”
In a main menu, help can be accessed at
any time by saying the command “Help”.
The Voice Control System will then read
out the available functions and commands
of all systems.In a submenu, help can also be accessed at
any time by saying the command “Help”.
The Voice Control System will then read
out an option list of all available functions
and commands available in the particular
submenu.
You can also use the help function to ac-
cess help for a specific system. To access
help for the phone operation, you would
speak the command “Help Telephone”.
If you wish to execute the last command
read out:
Press!.
Help window
You can use the help window to view a se-
lection of valid commands on the
COMAND display.
The help functions can be switched on or
off via COMAND in the “System settings”
menu (
page 261).
Entering digits and spelling
Entering digits
Digits from “Zero” to “Nine” may be
used.
Speaking phone numbers in digit
blocks of 3 to 5 digits has proven a
very reliable method for the input of
phone numbers.
Spelling
The letters of the English alphabet and
the digits 0 - 9 may be used.
Speak the letters in blocks of 5 - 7 let-
ters at a time.
Speak each individual letter clearly.
Page 354 of 801
353 Control systems
Voice Control troubleshooting
What to do if ...Problem
Possible cause/consequence
Suggested solution
Voice Control System does not recognize a
station list entry.
The voice entries for the station names
sound too similar.
When you create your address book en-
tries, select names with the greatest
possible acoustic differences.
Speak the command “List station list”.
The system reads out the station list en-
try by entry.
Press ! when the desired station
name is being read out.
The station is selected (
page 336).
Should interference occur during the pro-
cess of storing a name, the Voice Control
System prompts you to repeat your voice
entry a third and fourth time. If the interfer-
ence continues, the dialog is stopped.
Both voice entries differ.
Pronounce the voice entries both times
in the same manner.
Page 355 of 801

354 Control systemsVoice Control troubleshootingProblem
Possible cause/consequence
Suggested solution
Voice Control System does not recognize
commands.
You have not operated the system from the
driver’s seat.
Operate the Voice Control System only
by the driver as the microphone is
geared to the driver side.
You have spoken unclearly, too loudly or
too quietly.
Speak the commands in a continuous
manner using a normal tone.
A blower is set to the highest setting, vents
are pointed at microphones or wind noise is
being created through open windows.
Avoid loud disturbances.
Voice Control System does not recognize a
address book entry.
The voice entries in the address book sound
too similar.
When you create your address book en-
tries, select names with the greatest
possible acoustic differences: If for ex-
ample you have the names Smith and
Schmidt, choose for example “Smith
work” or “Schmidt John”.
Speak the command “List phone book”.
The system reads out the address book
entry by entry.
Press! when the desired entry is
being read out.
The entry is selected and the corre-
sponding number is dialed
(page 319).
Page 356 of 801

355 Control systems
Voice Control individualization
Voice Control individualization
The individualization is used to adapt the
Voice Control System to your own voice
and to therefore improve speech recogni-
tion. This does not affect the speech rec-
ognition of other users.
Individualization consists of two stages:
Digits
Commands
You can activate individualization in the
COMAND system settings (
page 261).
A dialog and screen displays will guide you
through the individualization process.
The system can be reset to the factory set-
tings at any time.
i
The individualization can only be performed
when the vehicle is stationary.
If you drive off, the individualization will be can-
celed.
After starting the session, the system will guide
you through the individualization by means of
acoustic instructions.
i
You may wish to complete only a portion of
the individualization process.
Completing the digits portion alone may result in
an improved recognition rate.
Individualization can be exited at any time. The
data trained, however, will only be retained if a
given individualization portion is completed and
the data is stored when prompted to do so by the
system.
Page 357 of 801
Page 358 of 801
357 Controls in detail
Locking and unlocking
Starter switch positions
Seats
Steering wheel
Mirrors
Memory function
Fastening the seat belts
Lighting
Windshield wipers
Power windows
Driving and parkingAutomatic transmission
Instrument cluster
Driving systems
Air vents
Automatic climate control
Trunk
Power tilt/sliding sunroof
Panorama roof with power
tilt/sliding panel*
Loading and storing
Useful features
Page 359 of 801

358 Controls in detailLocking and unlockingSmartKey
Your vehicle comes supplied with two
SmartKeys, each with remote control and
a removable mechanical key.
The SmartKey provides an extended oper-
ating range. To prevent theft, however, it is
advisable to only unlock the vehicle when
you are in close proximity to it.
The SmartKey centrally locks and unlocks,
when set to factory settings (
page 359):
the doors
the trunk
the fuel filler flap
SmartKey with remote control1‹ Lock button
2ŠOpening button for trunk
(
page 511)
3Mechanical key locking tab
4ŒUnlock button
5Battery check lamp
6ÂPanic button (
page 66)
!
To prevent possible malfunction, avoid ex-
posing the SmartKey to high levels of electro-
magnetic radiation.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. A child’s un-
supervised access to a vehicle could result
in an accident and/or serious personal inju-
ry.Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the door
or trunk lid opening when closing a door or
the trunk. Be especially careful when small
children are around.
Before closing doors, make sure there is no
possibility of someone getting caught in a
door during closing.
Page 360 of 801

359 Controls in detail
Locking and unlocking
Factory setting
Global unlocking: Press buttonŒ.
All turn signal lamps flash once.
An acoustic signal sounds once
(if equipped and feature activated).
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
i
USA only:
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
Canada only:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
You can also open and close the door win-
dows and tilt/sliding sunroof, or the tilt/ sliding
panel* using the SmartKey (
page 412).
!
If you cannot lock or unlock the vehicle with
the SmartKey, then either the batteries in the
SmartKey are discharged, the SmartKey is mal-
functioning or the vehicle batteries are drained.
Check the batteries in the SmartKey and re-
place them if necessary (
page 712).
Use the mechanical key to unlock the driv-
er’s door (
page 708) and the trunk
(
page 709).
Use the mechanical key to lock the driver’s
door (
page 709) and the trunk
(
page 517).
Have the vehicle batteries and their connec-
tions checked (
page 729).
If the SmartKey is malfunctioning, contact Road-
side Assistance or an authorized Mercedes-Benz
Center.
i
Your vehicle may be equipped with an
acoustic lock and unlock confirmation signal fea-
ture. If your vehicle is equipped with this feature
and the feature is activated, an acoustic signal
will sound when the vehicle is locked or unlocked
using the SmartKey.
To determine whether or not your vehicle is
equipped with this feature, contact an autho-
rized Mercedes-Benz Center. If equipped and
you wish to activate or deactivate the feature, or
adjust its signal volume, also contact an autho-
rized Mercedes-Benz Center.