MERCEDES-BENZ SLK55AMG 2005 R171 Owner's Manual

191 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
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.
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
by an authorized Mercedes-Benz Center.

192 Controls in detailAudio systemOperating and display elements

193 Controls in detail
Audio system
Item
Page
1
CD changer mode selector
207
2
Single CD mode selector
208
3
Radio mode selector
4
Mute function (radio)
200
Pause (CD)
215
5
Volume distribution
196
6
Sound settings
195
7
Display
8
Alphanumeric keypad
Item
Page
9
Speed dialing memory
(telephone) in descending
order
a
Accepting a call
(telephone)
221
b
Telephone mode selector
216
c
Speed dialing memory
(telephone) in ascending
order
218
d
Terminating a call
(telephone)
221
e
CD slot
f
CD ejection
209
Item
Page
g
Soft keys
194
h
Volume
195
j
Switching on/off
194
k
Manual tuning / seek
tuning (radio)
199
Track search, reverse (CD)
214
l
Manual tuning / seek
tuning (radio)
199
Track search,
fast forward (CD)
214

194 Controls in detailAudio systemButton and soft key operation
In these instructions, the alphanumeric
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 the unit on/off
Switching on
Turn the SmartKey in the starter switch
to position1 or2 (
page 35).

If the audio system was on as you
removed the SmartKey from the starter
switch, the audio system will
automatically come back on as you
turn the SmartKey to position1 or2.
or

Press
D
button.
!Do not press directly in the display
face. Otherwise, the display will be
damaged.
iIf the radio is switched on without the
SmartKey in the starter switch, it will
automatically switch off again after
approx. 30 minutes.
If your vehicle is equipped with a
telephone, the display may prompt you
to enter your PIN (GSM network) or
code (TDMA or CDMA network).

195 Controls in detail
Audio system
Switching off
Remove the SmartKey from the starter
switch.
or

Press
D
button.
Adjusting the volume

Turn rotary control of
E
button.
The volume will increase or decrease
depending on the direction turned.Adjusting sound functions
The bass and treble functions are called up
by pressing the O button.
Settings for bass and treble are stored
separately for the AM and FM wavebands,
weather band, CD mode and telephone
mode.
Bass

Press O button repeatedly until BASS
appears in the display.

Press
+ or
– soft key to increase or
decrease tone level accordingly.
or

Press
RES
soft key briefly to reset bass
tones to their center level.
The radio switches back to the
standard radio menu eight seconds
after the last soft key is pressed.
iShould excessively high temperatures
occur while the audio system is being
operated, the display will dim. If tem-
peratures continue to rise,
HIGH TEMP

will appear in the display, after which
the audio system will be switched off
for a cooling-down period.
iIf 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.

196 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 eight 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 four 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 eight seconds
after the last button is pressed.

197 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 four 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 201).
iFM waveband: 87.7......107.9 MHz
AM waveband: 530......1 710 KHz

198 Controls in detailAudio systemCalling up wavebands for radios
without SAT
Press
FM or
AM soft key to switch
between FM and AM.
The FM and AM wavebands are called
up one after another.
or

Press
WB soft key.
The weather band menu is called up.
The waveband currently selected
appears in the upper left-hand corner
of the display.Calling up wavebands for radios
with SAT

Press
FM, AM or
WB soft key repeatedly
until desired waveband has been
selected.
The FM, AM and WB wavebands are
called up one after another.
The waveband 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 input (
page 199)


Manual tuning (
page 199)


Automatic seek tuning (
page 199)


Scan search (
page 199)


Station memory (
page 200)


Automatic station memory (Autostore)
(page 200)
The station search proceeds in the
following frequency increments:


200 kHz in FM range


10 kHz in AM range

199 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.
three 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
eight seconds) tunes in all receiv-
able 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
four 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.

200 Controls in detailAudio systemStation memory
You can store ten AM and ten FM stations
in the memory.

Storing stations
Tune in desired station.

Press and hold desired station
button1 to R until a brief
signal tone is heard.
The frequency is stored on the
selected station button.


Calling up stations
Press desired station button1
to R briefly.Autostore – automatic station memory
The Autostore memory function provides
an additional memory level. The station
memory for manually stored stations is not
overwritten.


Calling up Autostore memory level and
storing stations
Press
AS soft key briefly.
The radio switches to the Autostore
memory level.
AS and
SEARCH

appear in the display and the radio
finds the ten stations with the
strongest signals. These stations
are stored on the station
buttons1 to R in order of
signal strength.


Calling up stations
Press desired station button1
to R.


Leaving the Autostore memory level
Press
FM or
AM
soft key briefly.
Interrupting radio mode
The radio mode is interrupted by an
incoming call on the telephone*
(
page 221).


Mute on
PressFbutton.
The radio mode is interrupted and MUTED
appears in the display.


Mute off
PressFbutton.
The radio mode is again active.