2004 MERCEDES-BENZ SLK CLASS radio

118 Controls in detailAudio systemCassette mode
Playing cassettes
Press the “TAPE” button.

Press the eject (EJ) key.
The display folds down and the cas-
sette slot becomes visible.

Push the cassette into the slot until it
engages.
The cassette will be pulled in automati-
cally.
The radio will switch to cassette mode.
Track 1 will be played and
SIDE 1
dis-
played. Track 1 is the side of the cassette
which is facing upwards. The cassette
deck will automatically detect the type of
tape and switch the equalization automati-
cally. A cassette symbol in the display indi-cates that a tape is in the mechanism. This
symbol appears in all modes but not in cas-
sette mode.
The cassette will not be ejected when the
radio is switched off or another mode is se-
lected.
If a cassette is in the mechanism, cassette
mode can be selected by using the “TAPE”
button. If no cassette has been inserted,
the display will show
NO TAPE
.
iDo not press directly on the radio dis-
play face.
Return the display panel to its normal
position by folding it back up and
pressing gently on the display frame to
lock in place.
When playing mono recorded tapes
(e.g. books) through a stereo system,
the sound from one track might bleed
to the other track, despite setting the
balance to the full left or full right
speakers.!If the display is in the down position for
more than 20 seconds, two successive
beeps will be heard. This will continue
at 5 second intervals until the display is
returned to its normal position.

119 Controls in detail
Audio system
Cassette eject
Press the eject (
EJ) key.
The display will fold down and the
cassette will be ejected.

Remove the cassette.

Fold the display back up manually.
The radio will switch back to radio
mode automatically.Track selection

Press the track selection (
TRK
) key.
The current track will be displayed as
SIDE 1
or
SIDE 2
. The track will be
changed automatically at the end of
the tape.
Track search forwards/backwards

Press the f button.SEEK FWD
will be shown on the display
and the track search will run the tape
forwards to the start of the next track.

Press the e button.SEEK RWD
will be shown on the display
and the track search will run the tape
backwards to the start of the track cur-
rently playing.

Press the same button again to inter-
rupt track search.
iThe cassette will not be ejected when
the radio is switched off.!If the display is in the down position for
more than 20 seconds, two successive
beeps will be heard. This will continue
at 5 second intervals until the display is
returned to its normal position.
iThe beginning of a track can only be lo-
cated if there is a break of at least four
seconds between tracks.

121 Controls in detail
Audio system
CD mode
General notes on CD mode
Should excessively high temperatures oc-
cur while the audio system is in CD mode, TEMP HIGH
will appear in the display and
muting will take place. The unit will then
switch back to radio mode until the tem-
perature has decreased to a safe operating
level.
Should excessively low temperatures oc-
cur while the audio system is in CD mode,
TEMP LOW
will be displayed, but the CD will
still be played. It will be sensitive to skip-
ping if you are driving over rough roads.
Handle CDs carefully to prevent interfer-
ence during playback.
Avoid fingerprints and dust on CDs. Do not
write on the CDs or apply any label to the
CDs.
Clean CDs from time to time with a com-
mercially available cleaning cloth. No sol-
vents, anti-static sprays, etc. should be
used. Replace the CD in its container after use.
Protect CDs from heat and direct sunlight.
Only use CDs which bear the label shown
and that conform to the compact disc dig-
ital audio standard (IEC 60908). You can
therefore only use CDs with a maximum
thickness of 1.3 mm.
!Your CD drive has been designed to
play CDs which correspond to the EN
60908 standard. 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.
Use of CDs which do not meet this
standard may cause damage to the CD
changer. Do not play single-CDs
(80 mm) with an adapter.
Warning!
G
The CD changer* is a Class 1 laser product.
There is a danger of invisible laser radiation
if the cover is opened or damaged.
Do not remove the cover. The CD changer*
does not contain any parts which can be ser-
viced by the user. For safety reasons, have
any service work which may be necessary
performed only by qualified personnel.

125 Controls in detail
Audio system
Direct track selection
Tracks can be selected directly using the
buttons on the alpha-numeric keypad.
Press the “function button, fol-
lowed by the track number.
Telephone* operation
Various functions of the Mercedes-Benz in-
tegrated cellular telephone can be per-
formed and displayed via the car radio.
Further instructions for operating the car
telephone can be found in the operation
guide for the cellular telephone*.
Switching the telephone on and off
Switching on:
Press the h button,
TEL
appears in
the corner of the display.Switching off:

Press and hold the h button until
the telephone symbol
TEL
no longer ap-
pears in the display,
or

Press the “PWR” button on the phone’s
keypad.
Entering telephone number and start-
ing dialing process

Enter the desired telephone number
using the alpha-numeric keypad.
The number can have up to 32 digits,
but only 13 of these can be displayed.

Press the
SND
button to start the dialing
process.
The entered number can be corrected us-
ing the
CLR
key.

Press the
CLR
key briefly.
The last digit will be deleted.

Press the
CLR
key longer.
The complete number will be deleted.
Calling up the phone book
The numbers stored in telephone memory
can be called up via either name or number
entries. The memory contents from the
portable phone must be downloaded and
the telephone menu must be selected in
order to call up the phone book. Refer to
the “Memory download” section of the cel-
lular telephone operation guide for more
information.

127 Controls in detail
Audio system
Manual repeat dialing (redial)
Press the
SND
key once to re-select the
last entered number.
The last dialed telephone number is
shown on the display.

Use the d, c, f or e but-
ton to select the numbers stored in the
re-dial memory of the telephone.

Press the
SND
key a second time to
place the call.
The abbreviation L and the number in the
memory are shown in the top line of the
display.Accepting an incoming call in tele-
phone mode
With an incoming call, the ringing tone will
be heard and the message
CALL
appears in
the display.

Press the
SND
key to answer the call.
Accepting an incoming call in tape, CD
or radio mode
If the telephone is activated in the back-
ground (telephone symbol in the display),
the audio system will automatically switch
to telephone mode when an incoming call
is received. The audio source is muted, the
ringing tone is heard and the message
CALL
appears. After the call has been ter-
minated, the previously selected audio
source is resumed.Terminating call

Press the
END
key to terminate a cur-
rent call.
Component malfunctions
The radio, CD changer* and
Mercedes-Benz integrated cellular tele-
phone* are part of a fiberoptic networked
system. Failure of one of the components
can lead to malfunctions of the other com-
ponents. Please contact your authorized
Mercedes-Benz Center or call
1-800-FOR-MERCedes for more informa-
tion in the event of a malfunction.

143 Controls in detail
Useful features
Cigarette lighter
1Cigarette lighter
2Cover
Turn key in the steering lock to
position1 or2 (
page 29).

Slide cover2 rearward.

Push in cigarette lighter1.
The cigarette lighter will pop out auto-
matically when hot.
Telephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
The external antenna must be approved by
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved
external antenna. Refer to the radio trans-
mitter operation instructions regarding use
of an external antenna.
Warning!
G
Never touch the heating element or sides of
the cigarette lighter; they are extremely hot.
Hold the knob only.
When leaving the vehicle, always remove the
key from the steering lock, and lock your
vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and/or serious
personal injury.iThe cigarette lighter socket can be
used to accommodate electrical acces-
sories up to a maximum 85 W.
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, pos-
sibly resulting in an accident and/or serious
personal injury.

151 Controls in detail
Useful features
Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. key inside vehicle), and the
reserve key is not handy:
Contact the Mercedes-Benz Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you
completed the subscriber agreement.

Then return to your vehicle and pull
outside trunk handle for minimum of
20 seconds until the SOS button is
flashing.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password
sent to you shortly after the completion of
your acquaintance call.
The Response Center will then unlock your
vehicle with the remote door unlocking
feature.
iThe indicator lamp in the respective
button flashes until the call is conclud-
ed. Calls can only be terminated by a
Response Center or Customer Assis-
tance Center representative, except
Roadside Assistance and Information
calls.iWhen a Tele Aid call has been initiated,
the audio system is muted and the se-
lected mode (radio, tape or CD) paus-
es. The optional cellular phone (if
installed) switches off. If you must use
this phone, the vehicle must be parked.
Disconnect the coiled cord and place
the call.
iThe remote door unlock feature is avail-
able if the relevant cellular phone net-
work is available.
The SOS button will flash to indicate re-
ceipt of the door unlock command.
Once the vehicle is unlocked, a Re-
sponse Center specialist will attempt
to establish voice contact with the ve-
hicle occupants.
If the trunk handle was pulled for more
than 20 seconds before door unlock
authorization was received by the Re-
sponse Center, you must wait
15 minutes before pulling the trunk
handle again.

157 Controls in detail
Useful features
Gate operator/Canadian programming
Canadian radio-frequency laws require
transmitter signals to “time-out” (or quit)
after several seconds of transmission
which may not be long enough for the inte-
grated signal transmitter to pick up the sig-
nal during programming. Similar to this
Canadian law, some U.S. gate operators
are designed to “time-out” in the same
manner.
I f y o u l i v e i n C a n a d a or i f y o u a r e h a v i n g d i f -
ficulties programming a gate operator (re-
gardless of where you live) by using the
programming procedures, replace step 4
with the following:Step 4:

Continue to press and hold the inte-
grated signal transmitter button (1,
2 or3) while you press and re-press
(“cycle”) your hand-held remote con-
trol transmitter6 every two seconds
until the frequency signal has been
learned. Upon successful training, the
indicator lamp4 will flash slowly and
then rapidly after several seconds.

Proceed with programming step 5 and
step 6 to complete.
Operation of integrated remote control

Switch on ignition.

Select and press the appropriate inte-
grated signal transmitter button (1,
2 or3) to activate the remote con-
trolled device.
The integrated remote control trans-
mitter continues to send the signal as
long as the button is pressed – up to
20 seconds.Erasing the integrated remote control
memory

Switch on ignition.

Simultaneously hold down the signal
transmitter buttons1 and 3, for ap-
proximately 20 seconds, until the indi-
cator lamp4 blinks rapidly. Do not
hold for longer than 30 seconds.
The codes of all three channels are
erased.iIf you sell your vehicle, erase the codes
of all three channels.