2009 MERCEDES-BENZ SLR Owner's Manual

145 Controls in detail
Audio system
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.
Operating safety
Location of the audio system
The audio system control panel is located
behind a cover in the upper part of the cen-
ter console.
1Cover
Briefly press on the lower part of
cover1.
The cover opens automatically.
Warning!
G
In order to avoid distraction which could
lead to an accident, the driver should enter
system settings with the vehicle at a stand-
still 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 cover-
ing a distance of 44 feet (approximately
14 m) every second.
Warning!
G
Any alterations made to electronic compo-
nents can cause malfunctions.
The radio, amplifier, CD changer and
telephone are interconnected. When one of
the components is not operational or has
not been removed/replaced properly, the
function of other components may be im-
paired.
This condition might seriously impair the
operating safety of your vehicle.
We recommend that you have any service
work on electronic components carried out
by an authorized Mercedes-Benz Center.

146 Controls in detailAudio systemOperating and display elements

147 Controls in detail
Audio system
Item
Page
1
CD mode selector
158
2
Manual tuning
(radio)
151
Fast forward/reverse
(cassette, CD)
156, 160
Speed dialing memory
(telephone)
165
3
Radio mode selector
151
4
Display panelCassette compartment
behind display panel
Item
Page
5
Alpha-numeric keypadBand selection,
station buttons (radio)
151
CD selection (CD)
160
Telephone number entry,
retrieving speed dialing
memory (telephone)
163
6
Scanning
(radio, cassette, CD)
153,
156,
160
7
Function button
152
8
Light-emitting diode
Item
Page
9
Function keys
a
Cassette eject
155
b
Cassette mode selector
154
c
Telephone mode selector
162
d
Seek tuning (radio)
152
Track search (cassette, CD)
155,
160
Speed dialing memory
(telephone)
165
e
On/off
148
Volume
148

148 Controls in detailAudio systemButton and soft key operation
In these instructions, the alpha-numeric
keypad (right side of radio panel) and the
function buttons (left side of radio panel)
are referred to as “buttons”. The four keys
below the display panel are referred to as
“soft keys”.
Operation
Switching on/off
Switching on:
Turn SmartKey in starter switch to
position1 or2.
or

Press control knoba.
Switching off:

Remove SmartKey from starter switch.
or

Press control knoba.Adjusting the volume

Turn control knoba.
The volume will increase or decrease
depending on the direction turned.
Adjusting audio functions
Press the
AUD
key to call up the bass,
treble, balance and fader functions in the
various operating modes. Settings for bass
and treble are stored separately for the AM
and FM frequency bands, cassette mode
and CD mode.
!
Do not press directly on the display face.
Otherwise the display will be damaged.
i
If the radio is switched on without the Smart-
Key in the starter switch, it will automatically
switch off again after approximately 30 minutes.
i
The volume setting can be selected
separately for the telephone and audio system.

149 Controls in detail
Audio system
Bass
Regardless of operating mode, press
the
AUD
key repeatedly until you
see
BASS
on the display.

Press
+ or
-key to increase or
decrease level.
or

Press both
+ and
- keys simultaneously
to reset the Bass to its center (flat)
level.Treble

Regardless of operating mode, press
the
AUD
key repeatedly until you see

TREBLE
on the display.

Press
+ or
- key to increase or
decrease level.
or

Press both
+ and
- keys simultaneously
to reset the Treble to its center (flat)
level.Fader

Regardless of operating mode, press
the
AUD
key repeatedly until you
see
FADER
on the display.

Press
F or
R key to shift sound accord-
ingly to the front or rear speakers.
or

Press both
F and
R keys simultaneously
to reset the Fader to its center level.
i
Your vehicle may or may not have the fader
function, depending on the vehicle equipment
and model.

150 Controls in detailAudio systemBalance
Regardless of operating mode, press
the
AUD
key repeatedly until you
see
BALANCE
on the display.

Press
L or
R key to shift sound accord-
ingly to the left or right speakers.
or

Press both
L and
R keys simultaneously
to reset the Balance to its center level.Returning audio functions to factory
settings

Regardless of operating mode, press
and hold
AUD
key longer than
2 seconds. RESET
will appear in the
display.
All settings for bass, treble and balance
are returned to the center level and the
volume is set to a predefined level.Audio system sound selection (EXT)*

Regardless of operating mode, press
the
AUD
key.
You see the sound settings menu on
the display.

Press the
EXT
key.

Press one of the function keys.

151 Controls in detail
Audio system
You can select from among the
following settings:

DRV
: The tone level is set to the
Driver position; sound is directed
toward the passengers.


SP: The tone level is set for Speech,
optimizing the sound for the spoken
word.


AMB
: The tone level is set for
Ambience, producing a
three-dimensional sound.


OFF
: The audio system sound
selection is turned off.
Telephone muting
The radio will switch to telephone mode
when a call is incoming. The current audio
source is muted.
Radio operation
Selecting radio mode
Pressb button.

You can now receive radio stations
over the analog FM, AM or WB station
frequencies.
Analog station frequencies
Selecting the band
You can select from among FM, AM or WB
frequency bands.
Weather band (
page 154).

Press FM, AM or WB key repeatedly
until desired band has been selected.
The FM, AM and WB frequency bands
are called up one after the other.
The frequency band currently selected
appears in the upper left-hand corner
of the display.
Selecting a station
The following options are available for
selecting a station:


Direct frequency band input
(page 152)


Manual tuning (
page 152)


Automatic seek tuning (
page 152)


Scan tuning (
page 153)


Preset buttons (
page 153)


Automatic station memory (Autostore)
(page 153)
i
FM frequency band:
FM 87.7......107.9 MHz
AM frequency band:
MW (medium wave) 530......1710 KHz

152 Controls in detailAudio systemDirect frequency input
Select the desired frequency band.

Press“ button.

Enter desired frequency using
buttons4 toM.Manual tuning

Select the desired frequency band.

Press and hold either thed or
cbutton until the desired
frequency is reached.
Step-by-step station tuning takes place
in ascending or descending order of
frequency. The first three tuning steps
will take place without muting. After-
wards, the radio will be muted and
high-speed tuning will take place until
the button is released.Automatic seek tuning

Select the desired frequency band.

Press either thef or ebutton.
The radio will tune to the next higher or
next lower receivable frequency.
i
You can only enter frequencies within the
respective waveband.
If a button is not pressed within 4 seconds, the
radio will return to the station last tuned to.