2008 MERCEDES-BENZ C300 audio

160 Controls in detail
Control system
Operating the CD player*
Turn on the radio and select the CD
mode (
page 213).
Vehicles with COMAND*:
Refer to separate operating
instructions.
Press ( or & to select the Audio
menu. The settings for the currently be-
ing played CD appear in the
multifunction display.
1Current CD (with additional number
from 1 to 6 when running from
CD changer*)
2Current track
Press % or $ to select a track.For more information on CD operation, see
“CD mode” (
page 208) and for the
CD changer*, see (
page 214).
1Current track
For more information on MP3, see “Notes
about MP3 mode” (
page 210).
TEL menu*
You can use the functions in the
Tel menu
to operate your Bluetooth® enabled tele-
phone, if it is switched on and connected
via the Bluetooth
® interface to the audio
system.
Vehicles with COMAND*: Refer to sepa-
rate operating instructions.
iTo select a CD from the CD changer* maga-
zine, press a number on the audio system or the
COMAND* system key pad located in the center
console.
iLevel of information displayed will vary de-
pending on the information contained on the CD
with MP3 files insert in the audio or COMAND*
system.
Warning!G
Some jurisdictions prohibit the driver from
using a cellular telephone while driving.
Whether or not prohibited by law, for safety
reasons, the driver should not use the cellu-
lar telephone while the vehicle is in motion.
Stop the vehicle in a safe location before
placing or answering a call.
If you nonetheless choose to use the mobile
phone while driving, please use the hands-
free device and be sure to pay attention to
the traffic situation at all times. Use the mo-
bile phone only when road, weather and traf-
fic conditions permit.

161 Controls in detail
Control system
Switch on the telephone and audio sys-
tem.
Activate and register the telephone
(
page 225).
Press ( or & to select the Tel
menu.
Which messages will appear in the
multifunction display depends on whether
your telephone is switched on or off:

If the Bluetooth® function on the audio
system is disabled, the message
Blue-
tooth not activated in system set-
tings
appears. To enable Bluetooth®
(
page 193).

If the telephone is switched on, the
telephone will then search for a net-
work. During this time, the message
No
Service
appears in the multifunction
display. If no network available, the
multifunction display message
No Ser-
vice
is shown continuously.

If the telephone is on, as soon as the
telephone has found a network,
Phone
Ready
appears in the multifunction dis-
play.This standby message indicates that your
telephone is ready for use and you can
operate it using the control system.
You may carry out the following functions:
Otherwise, you may not be able to observe
traffic conditions and could endanger your-
self and others.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
Warning!G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system,
possibly resulting in an accident and
personal injury.FunctionPage
Dialing a number from the phone
book162
Redialing163
Answering a call163
Ending a call or rejecting an in-
coming call163

162 Controls in detail
Control system
Dialing a number from the phone book
If your telephone is ready to receive calls,
you may select and dial a number from the
phone book at any time.
Press ( or & to select the Tel
menu.
Log on to the network (page 193).
Press % or $ or # to switch
to the phone book.
The stored names are displayed in
ascending alphabetical order.
Press % or $ to select the de-
sired name.1Name from the phone book
Press s or # to start dialing.
If several entries are present for the
same name, they are all shown.
Press % or $ to select the
desired entry.
Press s or # to start dialing.The message
Connecting call… ap-
pears on the multifunction display, as
well as the dialed telephone number or
name as long as it is stored in the
phone book.
The dialed number is saved in the “Di-
aled numbers” list.
Once a connection has been estab-
lished, the name appears on the multi-
function display, provided that it has
been stored in the phone book, other-
wise the dialed telephone number ap-
pears.
iFor using the phone book of the audio sys-
tem you can import business cards (vCards)
from external Bluetooth
® phones into your audio
system's phone book (
page 233).
iIf you press and hold % or $ for
more than 1 second, the system scrolls
rapidly through the list of names.
If you press and hold % or $ for more than
4 seconds, the control system shows the first
four entries of the letter next used. Release the
button to stop the quick search. The search
stops automatically at the end of the list.
iIf you do not want to dial from the phone
book, press t or L. The message
Ready
again appears in the multifunction display.

168 Controls in detail
Control system
Instrument cluster submenu
Access the
Instr. Cluster submenu via
the
Settings menu. Use the Instr. Clus-
ter
submenu to change the instrument
cluster display settings.
The following functions are available:
Select speedometer display mode
Press % or $ to select the
Instr. Cluster submenu.
Press #.
Press % or $ to select Display
Unit Speed-/odometer
function.The selection marker is on the current
setting.
Press % or $ to set speedome-
ter unit to
km ormiles.
Press # to confirm the setting.
The selected display unit is valid for:

Odometer and trip odometer

Trip computer

Digital speedometer in the trip menu

Cruise controlSelect language
Selecting the language for the multifunc-
tion display is only possible with the Audio
system (
page 193) or with COMAND*.
Vehicles with COMAND*: Refer to sepa-
rate operating instructions.
The language select in the Audio system or
COMAND* is also used for the displays
and messages in the multifunction display.
Available languages:

German

English

Spanish

French

Italian
FunctionPage
Select speedometer display
mode168
Switch the additional speedome-
ter on or off (vehicles with manu-
al transmission)169
Permanent display (vehicles with
automatic transmission*)169

176 Controls in detail
Audio system
Audio and telephone, operation
These instructions are intended to help
you become familiar with your
Mercedes-Benz audio system. They con-
tain useful tips and a detailed description
of the user functions.Audio system overview
Warning!G
In order to avoid distraction which could
lead to an accident, the driver should enter
system settings with the vehicle at a
standstill and operate the system only when
road and traffic conditions permit. Always
pay full attention to traffic conditions first
before operating system controls while
driving.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your car is
covering a distance of 44 feet
(approximately 14 m) every second.
ItemPage
1Audio display180
2Opening button180
3Audio control unit177
ItemPage
4Delete button184
5Audio controller182
6Back button184

177 Controls in detail
Audio system
Operating safetyAudio system components
With the audio system you can operate the
following main functions:

audio function with the radio, Sat*,
disc (CD audio or MP3 mode)

the telephone* with the phone book

various system settings
The audio system consists of the following:

audio control unit

audio display

audio controller with back and delete
button
In addition, the audio system can also be
operated with the multifunction steering
wheel (
page 152).
In these instructions, the keypad (right
side of audio control unit) and the function
buttons are referred to as “buttons”.Audio control unit
With the audio control unit you can:

switch the audio system on/off

adjust the volume

select the operating modes

enter telephone numbers and accept,
reject, initiate and end telephone calls

load and eject CDs
Warning!G
Any alterations made to electronic
components can cause malfunctions.
The radio, amplifier, CD changer*, satellite
radio*, and telephone* are interconnected.
When one of the components is not opera-
tional or has not been removed/replaced
properly, the function of other components
may be impaired.
This condition might seriously impair the
operating safety of your vehicle.
We recommend that you have any service
work on electronic components carried out
at an authorized Mercedes-Benz Center.

178 Controls in detail
Audio system
Audio control unit overview

179 Controls in detail
Audio system
ItemPage
1Switching to radio mode196
Switching wavebands196
Switching to Sat* mode
2Switching to CD audio or
MP3 mode213
3Disc slot
Loading CDs
Ejecting CDs
Updating the map software
4Load/eject button214
5Clear button for deleting
digit or entire entries184
237
Entering a passcode228
Entering a telephone
number237
ItemPage
6Keypad
Tuning to a station via the
station memory197
Storing stations manually198
Entering a passcode228
Entering a telephone
number237
Sending DTMF tones240
CD changer*: Selecting CD217
7Tuning to a station via
station search197
Fast forward219
Selecting next track219
8Switching audio on/off188
9Setting the volume189
aTuning to a station via sta-
tion search197
Fast reverse219
Selecting previous track219
ItemPage
bConfirming a passcode228
Accepting a call239
Initiating a call237
Redial238
cRejecting a call239
Ending an active call238
dOpening system menu192
eSwitching sound on/off189
Switching hands-free
microphone on/off240
fSwitching to telephone
mode225
gSound settings189