Page 196 of 481

195 Controls in detail
Automatic climate control*
Activating
Press buttonU (
page 192) while
the engine is running.
The indicator lamp on the button
comes on. The air volume and air distri-
bution are adjusted automatically.
Use temperature controls4and6
orbandc (
page 192) to sepa-
rately adjust the air temperature on
each side of the passenger compart-
ment.
The temperature of the vehicle interior
is adjusted automatically.
Deactivating
Press buttonU (
page 192) again.
The indicator lamp on the button goes
out. The air volume changes to level2
and the air distribution changes
tob. Automatic control of air vol-
ume and air distribution is switched off.
Setting the temperature
Use temperature controls4andc for
the left side or6andb for the right side
(page 192) to separately adjust the air
temperature on each side of the passenger
compartment. You should raise or lower
the temperature setting in small incre-
ments, preferably starting at 72°F (22°C).
The climate control will adjust to the set
temperature as fast as possible.Increasing
Press temperature button(s)
4and/or6 (
page 192) until the
desired temperature appears in the
control panel displaye (
page 192).
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Decreasing
Press temperature button(s)
band/orc (
page 192) until the
desired temperature appears in the
control panel displaye (
page 192).
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Page 198 of 481
197 Controls in detail
Automatic climate control*
Closing the cockpit air vent and center
air vents
Turn thumbwheels5,8anda
(page 190) downward.
The cockpit air vent and the center air
vents are closed.
Opening and closing side air vents
Turn thumbwheels1ande
(page 190) in the corresponding di-
rection.
Side air vents2andd are open or
closed.
Adjusting air volume
Use buttonU (
page 192) for auto-
matic mode or air volume control1
(
page 192) to adjust air volume
manually.
Eleven blower speeds are available.
Turn air volume control1
(page 192) to the desired position.
The indicator lamp on the buttonU
(page 192) goes out.
The automatic operation of air volume
switches off.
Defrosting windshield
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the side windows.
iKeep this setting selected only until the
windshield or the side windows are
clear again.
Page 201 of 481

200 Controls in detailAutomatic climate control*
Deactivating
Press button, (
page 192) again.
The indicator lamp on the button goes
out.
Air conditioning
The cooling function, only operational
when the engine is running, cools the vehi-
cle interior down to the selected tempera-
ture. The cooling function also
dehumidifies the air in the vehicle interior,
thus preventing the windows from fogging
up.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.
Warning!
G
Never operate the side windows if there is
the possibility of anyone being harmed by
the closing procedure.
In the event that the procedure causes po-
tential danger, the closing of the door win-
dows can be immediately halted by
releasing the, button or by pressing the
respective power window switch.
The closing of the rear side windows can be
immediately halted by releasing the
,button.iIf you press button, and keep it
pressed, the side windows will close.
The closing of the windows can be im-
mediately halted by releasing
button,.
iThe air recirculation mode is deactivat-
ed automatically:
after 5 minutes if the outside tem-
perature is below approximately
41°F (5°C)
after 5 minutes if the air condition-
ing is turned off (
page 200)
after 30 minutes if the outside tem-
perature is above approximately
41°F (5°C)
iIf you press button, and keep it
pressed, the side windows will open.
The opening of the windows can be im-
mediately halted by releasing
button,.
Page 209 of 481

208 Controls in detailAudio systemAdjusting treble
Press O button repeatedly until TREBLE
appears in the display.
Press
+or
– soft key to increase or
decrease tone level accordingly.
or
Press
RES
soft key briefly to reset treble
tones to their center level.
The radio switches back to the
standard radio menu 8 seconds after
the last soft key is pressed.Returning sound functions to factory
settings
Press O button to call up settings
menu in the display.
Press
RES
soft key briefly; the respec-
tive sound function is reset to its center
level.
or
Press and hold
RES
soft key until
RESET
appears in the display.
The sound settings for bass and treble
are returned to their center level and
the volume is set to a predefined level.
The radio switches back to the
standard radio menu 4 seconds after
the last soft key is pressed.Adjusting balance
Press P button.BALANCE
appears in the display.
Press X or Y soft key.
The volume is distributed between the
left and right sides of the vehicle.
or
Press
RES
soft key briefly.
The balance is reset to its center level.
The radio switches back to the
standard radio menu 8 seconds after
the last button is pressed.
Page 210 of 481
209 Controls in detail
Audio system
Returning volume distribution to
factory settings
Press P button to call up settings
menu in the display.
Press
RES
soft key briefly; the
respective volume distribution is reset
to its center (flat) level.
or
Press and hold
RES
soft key until
RESET
appears in the display.
The volume distribution settings for the
balance is set to the center level.
The radio switches back to the
standard radio menu 4 seconds after
the last soft key is pressed.Telephone* muting
If your vehicle equipment includes a
Mercedes-Benz specified mobile
telephone*, you can adjust its volume
separately from the volume of the audio
system while the telephone* is being used.
Radio operation
Selecting radio mode
Press b button.
Calling up wavebands
You can choose from among the FM, AM
and WB wavebands.
Weather band (
page 213).
iFM waveband: 87.7......107.9 MHz
AM waveband: 530......1 710 KHz
Page 212 of 481

211 Controls in detail
Audio system
Direct frequency input
Select desired waveband.
Press * button.
Enter desired frequency with
buttons1to R.Manual tuning
Select desired waveband.
PressGorHbutton for approx.
3 seconds.
Press button repeatedly until desired
frequency has been reached.
Step-by-step station tuning takes place
in ascending or descending order. Each
time the button is pressed, the radio
tunes further by 0.2 MHz. During
manual tuning, the radio is muted.
Automatic seek tuning
Select desired waveband.
PressGorHbutton briefly.
The radio will tune to the next highest
or next lowest receivable frequency.Scan search
Starting scan search
Select desired waveband.
Press
SC soft key.
SC will appear in the display. The
radio briefly (approximately
8 seconds) tunes in all receivable
stations on the waveband selected.
Ending scan search
Press
SC soft key orGorH.
The station last played will be
selected and
SC disappears from
the display.
iYou can only enter frequencies within
the respective waveband.
If a button is not pressed within
4 seconds, the radio will return to the
last station tuned.
iIf no station is received after two
consecutive scans of the complete
frequency range, then the scan stops
at the frequency from which it began.
Page 217 of 481

216 Controls in detailAudio systemSelecting a station
The following options are available:
Selecting a station using the selected
category (
page 217).
Tuning via station presets
(page 216).
Tuning via scan search (
page 217).
Tuning via manual channel input
(page 216).
Tuning via the program category list
(page 216).
Tuning via station presets
Ten satellite radio station presets are
available.
You can access the presets via number
keys.Accessing via number keys
Enter number of preset you wish to
select, e.g. 1.
The radio plays the station stored
under this number and the PTY function
changes to the category corresponding
to the station.
Tuning via manual channel input
Example: tuning in channel 16
Press *.
Input line appears in the main radio
menu.
Use number keys to enter desired
channel within 8 seconds,
e.g.16.
The system tunes to channel 16.
The station you have selected begins to
play.
Tuning via the program category list
The category list contains all currently
receivable categories of programs. It is
arranged alphabetically.iYou can only enter available channel
numbers.
Page 220 of 481

219 Controls in detail
Audio system
CD mode
Safety precautions
General notes
The system may not be able to play audio
CDs with copy protection.
Playing copied CDs may cause
malfunctions during playback.Warning!
G
The single CD player and the CD changer*
are Class 1 laser products. There is a danger
of invisible laser radiation if the housing is
opened or damaged.
Do not open the housing. The single CD
player and the CD changer* do not contain
any parts that can be serviced by the user.
For safety reasons, have any service work
which may be necessary performed only by
qualified personnel.
Warning!
G
In order to avoid distraction which could
lead to an accident, the driver should insert
CDs with the vehicle at a standstill and
operate the audio system only if permitted
by road, weather and traffic conditions.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your car covers a
distance of 44 feet (approximately 14 m)
every second.iThe audio system plays both CD-Rs and
CD-RWs with audio data.
!If you affix stickers to the CDs, they can
become warped due to the heat that
develops in the CD drive or
CD changer.
In certain situations, the CDs can then
no longer be ejected and cause
damage to the drive. Such damage is
not covered by the Mercedes-Benz
Limited Warranty.!Your CD drive or CD changer has been
designed to play CDs which
correspond to the EN 60908 standard.
You can therefore only use CDs with a
maximum thickness of 1.3 mm.
If you insert thicker data carriers, e.g.
ones that have data on both sides (one
side with DVD data, the other side with
audio data), they cannot be ejected and
will damage the drive.