radio controls MERCEDES-BENZ C300 4MATIC 2008 W204 Owner's Manual

14 Introduction
Symbols
Trademarks:

ESP® is a registered trademark of
DaimlerChrysler.

HomeLink® is a registered trademark
of Prince, a Johnson Controls
Company.

SIRIUS and related marks are trade-
marks of SIRIUS Satellite Radio Inc.The following symbols are found in this
Operator’s Manual:
* Optional equipment is identified
with an asterisk. Since standard
equipment varies between models,
the descriptions and illustrations in
this manual may differ slightly from
the actual equipment of your vehi-
cle.
This symbol points to instructions for
you to follow.
A number of these symbols appearing
in succession indicates a multiple-step
procedure.
 page This symbol tells you where to
look for further information on a
topic.
This continuation symbol marks
a warning which is continued on
the next page.
This continuation symbol marks
a procedure which is continued
on the next page.
-> This symbol is used to indicate
cross-references to term defini-
tions.
DisplayWords appearing in the multi-
function display and COMAND
display are printed in the type
shown here.
Warning!G
Warning notices draw your attention to haz-
ards that may endanger your health or life,
or the health or life of others.
!Highlights hazards that may result in dam-
age to your vehicle.
iHelpful hints or further information you may
find useful.

129 Controls in detail
Driving and parking
Starting difficulties
The engine does not start. You can hear
the starter.
There could be a malfunction

in the engine electronics, or

in the fuel supply system
Carry out the following steps:
If you are starting the engine with the
SmartKey: Turn SmartKey in starter
switch to position0 and repeat starting
procedure (
page 126).
If you are starting the engine with
KEYLESS-GO*: Close any doors that
may be open to allow for better detec-
tion of the SmartKey with
KEYLESS-GO*.
or
Remove the KEYLESS-GO* start/stop
button from starter switch.
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO*.
Repeat the starting procedure
(
page 126).
If the engine does not start after several
starting attempts:
Call Roadside Assistance.
Notify an authorized Mercedes-Benz
Center.
The engine does not start. You cannot
hear the starter.
The battery may not be sufficiently
charged.
Get a jump start (page 451).
If the engine will not start despite a jump
start:
Call Roadside Assistance.
Notify an authorized Mercedes-Benz
Center.
Driving off
!Remember that extended starting attempts
can drain the battery.
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
(Canada only) 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. Children
could release the parking brake, which
could result in an accident and/or serious
personal injury.
Warning!G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of loss of control.

153 Controls in detail
Control system
Depending on the selected menu
(
page 155), pressing the buttons on the
multifunction steering wheel will alter what
is shown in the multifunction display.
The information available in the multifunc-
tion display is arranged in menus, each
containing a number of functions or sub-
menus.
The individual functions are then found
within the relevant menu (radio or CD op-
erations under
Audio, for example). These
functions serve to call up relevant informa-
tion or to customize the settings for your
vehicle.
In the
Settings menu, instead of functions
you will find a number of submenus for
calling up and changing settings. For
instructions on using these submenus, see
“Submenus in the Settings menu”
(
page 166).
It is helpful to think of the menus, and the
functions within each menu, as being
arranged in a circular pattern.The number of menus available in the sys-
tem depends on which optional equipment
is installed in your vehicle.
Using the control system
To select a menu:
Press button(or&.
To select a submenu:
Press button%or$.
To go to the next higher menu level:
Press buttonL.
To select the standard display: Press
buttonL repeatedly until the stan-
dard display featuring the odometer
and speedometer appears.
or
Press and hold buttonL until the
standard display featuring the odome-
ter and speedometer appears.
To confirm selection:
Press button#.
To confirm display message:
Press button# or L.
The control system saves certain dis-
play messages. Calling up display mes-
sages (
page 164).
For information about warning and mal-
function messages appearing in the multi-
function display (
page 387).
iThe headings used in the menus table are
designed to facilitate navigation within the sys-
tem and are not necessarily identical to those
shown in the control system displays.
The first function displayed in each menu will au-
tomatically show you which part of the system
you are in.

155 Controls in detail
Control system
Menus, submenus and functions
Menu1Menu2Menu3Menu4Menu5Menu6
Trip computerNavi*AudioTel*ServiceSettings
(page 156)(page 158)(page 158)(page 160)(page 164)(page 165)
Commands/submenus
Standard displayShow route guid-
ance instructions,
current direction
traveledSelecting radio
stationTo take a callCall up vehicle mal-
function, warning and
system status mes-
sages stored in mem-
ory
1
1The vehicle status message memory menu is only displayed if there is a message stored.
Reset to factory
settings
Fuel consumption
statistics since startSelecting satellite
radio station*Select a phone
book entryTire Pressure Monitor-
ing System (TPMS)
(USA only)Instrument cluster
submenu
Fuel consumption
statistics since the
last resetOperating
CD player* RedialRun Flat Indicator
(Canada only)
Distance to emptyCall up maintenance
service display
Digital speed-
ometer or outside
temperature

158 Controls in detail
Control system
Digital speedometer
Press ( or & to select the Trip
menu.
Press % or $ to select the digital
speedometer.
1Digital speedometer
Navi* menu
The
Navi menu contains the functions
needed to operate your navigation system.
Press ( or & to select the Navi
menu.

If COMAND* is switched off, the mes-
sage
Navi Off appears in the multi-
function display.

With COMAND* switched on but route
guidance not activated, the direction of
travel and, if available, the name of the
street currently traveled on appear in
the multifunction display.

With COMAND* switched on and route
guidance activated, the direction of
travel and maneuver instructions ap-
pear in the multifunction display.
Please refer to the COMAND* manual for
instructions on how to activate the route
guidance system*.
Audio menu
The functions in the
Audio menu operate
the audio equipment which you currently
have turned on.
If no audio equipment is currently turned
on, the message
Audio Off appears in the
multifunction display.
The following functions are available:
To adjust the volume: Press æ or
ç on the multifunction steering
wheel.
FunctionPage
Selecting radio station159
Selecting satellite radio station*159
Operating CD player*160

159 Controls in detail
Control system
Selecting radio station
Turn on the audio system (page 188)
and press buttonb on audio con-
trol unit.
Vehicles with COMAND*: Refer to
separate operating instructions.
Press ( or & to select the Audio
menu. The currently tuned station
appears in the multifunction display.
1Waveband setting
2Station frequency
Select next or previous stored sta-
tion: Press % or $ briefly to se-
lect a stored station.
Select next or previous station in
waveband: Press and hold % or
$ to select a station.Selecting satellite radio station*
The satellite radio is treated as a radio
application.
Turn on the radio (page 188) and se-
lect the satellite radio with the audio
control unit.
Vehicles with COMAND*: Refer to
separate operating instructions.
Press ( or & to select the Audio
menu. The currently tuned channel
appears in the multifunction display.1SAT mode
2Channel name and/or number
Select next or previous stored chan-
nel: Press % or $ briefly to se-
lect a stored channel.
Select next or previous channel in
waveband: Press and hold % or
$ to select a channel.
iYou can only store new stations using the
corresponding feature on the radio
(
page 198).
Vehicles with COMAND*:
Refer to separate operating instructions.
You can also operate the radio in the usual
manner.
i A subscription to SIRIUS Satellite Radio ser-
vice provider is required for the satellite radio op-
eration. Contact an authorized Mercedes-Benz
Center for details and availability for your
vehicle.
For more information on satellite radio opera-
tion, see “Satellite radio*” (
page 200).
Vehicles with COMAND*:
Refer to separate operating instructions.

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

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.

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