Page 245 of 723

244 Control systems
COMAND automatic climate control
You can operate the automatic climate
control via COMAND or via the buttons on
the automatic climate control panel
(
page 453).
Some of the special climate control func-
tions can only be set via COMAND.The following automatic climate control
functions can be operated via COMAND:
iThe components and operating principles of
COMAND can be found on (
page 81).
Warning!G
When operating the automatic climate con-
trol, the air that enters the passenger com-
partment through the air vents can be very
hot or very cold (depending on the set tem-
perature). This may cause burns or frostbite
to unprotected skin in the immediate area of
the air vents.
Always keep sufficient distance between un-
protected parts of the body and the air
vents. If necessary, use the air distribution
adjustment (
page 246) to direct the air to
air vents in the vehicle interior that are not
in the immediate area of unprotected skin.
Warning!G
Follow the recommended settings for heat-
ing and cooling given on the following pages
and pages in the “Controls in detail” part
(
page 453) Otherwise the windows could
fog up, impairing visibility and endangering
you and others.
FunctionPage
Temperature245
Air distribution246
Air volume246
Switching off cooling (“ACOFF”)247
Central climate control (“Mono”)248
Footwell temperature249
Air flow from air vents249
Page 247 of 723
246 Control systems
COMAND automatic climate control
Adjusting air distribution
You can adjust the air distribution sepa-
rately for the driver’s and front passenger’s
side.
Select climate control settings Air
distribution, left or right.
Changing air distribution:
Rotateymz.
The symbol for air distribution changes.
The direction and size of the arrows
represent the air distribution.
Exiting menu: Press n, back
buttonL in the center console
(
page 82) or slideomp.
The setting is saved.
Adjusting air volume
Use buttonsQ (
page 453) in the cen-
ter console or COMAND climate control
settings to separately adjust the air vol-
ume on each side of the passenger com-
partment.
Select climate control settings Air
volume, left or right.
iWhen you change the air distribution, the au-
tomatic function of the climate control system is
switched off.
iWhen you change the air volume, the auto-
matic function of the climate control system is
switched off.
Page 249 of 723

248 Control systems
COMAND automatic climate control
Select climate control settings Cen-
tral climate control menu.
Selecting “ACOFF”: Slide qmr or
rotateymz.
Confirming selection: Press n.
A checkmark appears when the cooling
is switched off.“AC
OFF” appears in the central menu of
the climate control settings.
Selecting “Mono” mode
“Mono” is used to adjust the climate zones
for the entire vehicle at the same time.
When the “Mono” function is switched on
and you change the climate on the driver’s
side, these changes will be carried out in
the same manner for all climate zones.
Select climate control settings Cen-
tral climate control menu.
Selecting “Mono”: Slide qmr or
rotateymz.
Confirming selection: Press n.
A checkmark appears when the func-
tion has been selected.
Exiting menu: Press back button L
in the center console (
page 82) or
slideomp.
The “Mono” function is automatically
switched off when you:
change an automatic climate control
setting for the front passenger’s side
using COMAND
operate a button from the automatic
climate control for the front passen-
ger’s side
operate one of the buttons for the rear
climate control system
Warning!G
If you turn off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog
up more quickly. Window fogging may
impair visibility and endanger you and
others.!If the air conditioning cannot be turned on
again, this indicates that the air conditioning is
losing refrigerant. The compressor has turned it-
self off.
Have the air conditioning checked at the nearest
authorized Mercedes-Benz Center.
Page 258 of 723

257 Control systems
Instrument cluster control system
Multifunction steering wheel
The displays in the multifunction display
and the settings in the control system are
controlled using the buttons on the multi-
function steering wheel.
The information available in the multifunc-
tion display is arranged in menus, each
containing a number of functions or sub-
menus. For example, in the “Settings” menu, you will find functions for making
settings to your vehicle. There are func-
tions for calling up information and for
making settings to your vehicle.
It is helpful to think of the menus as being
arranged in a circular pattern:
Press & or ( repeatedly to
switch menus.
The number of menus available in the sys-
tem depends on which optional equipment
is installed in your vehicle.
Press button L to return to the next
highest menu level.
From a menu’s highest level, you will al-
ways see the screen from the “Trip” menu
that was last active. When you press L
again, you switch to the standard display
(
page 260).
For information about warning and mal-
function messages appearing in the multi-
function display (
page 580).
1Multifunction display
2sto take a call
to dial
to redial
tto end a call
to reject an incoming call
æto increase volume
çto decrease volume
Fto mute
3!to accept a call
to activate Voice Control
4Lback/to cancel Voice Control
5$to scroll up
%to scroll down
&to scroll to the right
(to scroll to the left
#to confirm selection
Page 275 of 723

274 Control systems
Voice Control introduction
The Voice Control System gives you the ca-
pability to control the following systems on
your vehicle using spoken commands:
Telephone* (page 278)
Navigation (page 285)
Address book (page 295)
Audio (page 299) (AM/FM radio,
CD/DVD changer, MP3 player)You control these systems using spoken
commands. Moreover, controls such as
the buttons on the multifunction steering
wheel (
page 276) allow you to keep your
hands on the steering wheel.
The command vocabulary consists of
approximately 300 ready to use phrases.
The Voice Control System recognizes com-
mands and number sequences, irrespec-
tive of the speaker. To optimize speech
recognition for your voice follow the indi-
vidualization process (
page 320).
You can use the Voice Control System to
call up all of COMAND’s main menu items,
with the exception of the main menus for
“Vehicle” and “Navi”.The commands and digit sequences can be
spoken without pausing between the indi-
vidual words. If an unavailable or incorrect
command is used, the Voice Control Sys-
tem will prompt you for a new command by
asking “Please repeat” or “Please repeat
your entry”.
In order to provide for a safe and comfort-
able dialog, the Voice Control System ac-
knowledges important commands.
Page 281 of 723

280 Control systems
Voice Control telephone
“Dial number”
You can dial a phone number using the
command “Dial number”.
Digits from “Zero” to “Nine” may be used.
The phone number must be spoken
as a continuously spoken string of
digits, or
in digit blocks (three to five digits in
each block).
After each digit block (separate the digit
blocks by using an approximately
0.5 second pause), the Voice Control Sys-
tem repeats the recognized digits and
waits until you continue speaking.
When dialing 1800 numbers, you may pro-
nounce the first four digits as “One eight
hundred” and the system will recognize the
spoken entries as “One eight zero zero”.
All other numeric entries must be spoken
as individual numbers.Sample dialog:
sDial number
tPlease say the number
sOne two three
tOne two three
sFour five six seven
tFour five six seven
sOK
tDialing“Confirm”
Using the command “Confirm” will repeat
all digits spoken up to that point. Upon re-
peating the digits, the system will prompt
you to continue your input.
Sample dialog:
sDial number
tPlease say the number
sOne two three
tOne two three
sConfirm
tOne two three, please continue
sFour five six seven
tFour five six seven
sOK
tDialing
iYou can also dial the telephone number spo-
ken by pressing buttons on the multifunc-
tion steering wheel (instead of using the
command “OK”):
You can dial the telephone number before all
numbers are recited in full.
Page 326 of 723

325 Controls in detail
Locking and unlocking
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that press-
ing buttonŒ only unlocks the driver’s
door and the fuel filler flap.
Press and hold buttonsŒ and‹
simultaneously for about 5 seconds un-
til battery check lamp5 (
page 322)
flashes twice.
The SmartKey will then function as fol-
lows:
Unlocking driver’s door and fuel fill-
er flap: Press buttonŒ once.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knob in the driver’s
door moves up.
The anti-theft alarm system is dis-
armed.
Global unlocking: Press buttonŒ
twice.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
Global locking: Press button‹.
With the trunk and both doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
Restoring to factory setting: Press
and hold buttonsŒ and‹ si-
multaneously for about 5 seconds until
battery check lamp5 (
page 322)
flashes twice.
Page 327 of 723

326 Controls in detail
Locking and unlocking
SmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO come
with two SmartKeys with KEYLESS-GO,
each with remote control and a removable
mechanical key.
The locking tabs for the mechanical key
portion of the two SmartKeys with
KEYLESS-GO are of different color to help
distinguish each SmartKey with
KEYLESS-GO unit.
The KEYLESS-GO function is integrated
into the SmartKey. On these vehicles, the
validity of the SmartKey with KEYLESS-GO
is checked every time you grasp an outside
door handle.
With the KEYLESS-GO function, you can
lock and unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without in-
serting the SmartKey in the starter switch.If the SmartKey with KEYLESS-GO is valid,
your vehicle unlocks:
the doors
the trunk
the fuel filler flap
SmartKey with KEYLESS-GO
1‹ Lock button
2ŠOpening button for trunk
(
page 461)
3Locking tab for mechanical key
4Œ Unlock button
5Battery check lamp
6ÂPanic button (
page 63)
!To prevent possible malfunction, avoid ex-
posing the SmartKey with KEYLESS-GO to high
levels of electromagnetic radiation.
Warning!G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
Children could start the vehicle with a valid
SmartKey with KEYLESS-GO left in the
vehicle or with the KEYLESS-GO button on
the starter switch, or could release the
electronic parking brake, thereby putting
themselves and others in danger. Switch off
the engine and take the SmartKey with
KEYLESS-GO with you even if you are only
leaving the vehicle for a short while.