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224 Controls in detailAudio system
Briefly press button2 for the empty
magazine slot that you would like to
use.
The light-emitting diode in the maga-
zine slot button flashes in green. INSERT CD
appears in the display along
with the slot number.
The flashing light indicates that the CD
changer is ready to receive a CD.
Insert an audio CD into CD loading
slot1 within 5 seconds, label side up.
The CD is pulled in and played.
Close the glove box.
Loading several CDs
Open the glove box.
Press button2 of an empty magazine
slot for more than 2 seconds.
The light-emitting diodes in all the mag-
azine slot buttons light up several
times in green, and
ALL LOAD
appears
in the display.
Wait until the light-emitting diode for
the first magazine slot flashes in green.
The flashing light indicates that the CD
changer is ready to receive a CD.
Insert an audio CD into CD loading
slot1 within 5 seconds, label side up.
The CD is pulled in and the light-emit-
ting diode in the magazine slot button
lights up in red. The magazine slot is
loaded.
The light-emitting diode in the next
available magazine slot button flashes
in green. The CD changer is ready to re-
ceive the next CD.
Repeat the previous step until all six
magazine slots are loaded.
Once all magazine slots are loaded, the
CD in the sixth magazine slot is played.
Close the glove box.iIf, for example, you only want to load
magazine slots 1 - 4 instead of all six,
simply do not insert a fifth CD into the
CD loading slot. The CD changer will
first try to load a CD but will then can-
cel the procedure, after which the radio
will play the fourth CD.
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225 Controls in detail
Audio system
Ejecting CDs
Ejecting single CDs
Open the glove box.
Briefly press desired magazine slot but-
ton.
The light-emitting diode in the maga-
zine slot button flashes in red. The cor-
responding CD is ejected.
EJECTING CD
appears in the display along with the
magazine slot number.
Remove CD from CD loading slot within
15 seconds.
If after removing a single CD no other
CDs remain loaded in the magazine, MAG. EMPTY
appears in the display.
Close the glove box.Ejecting all loaded CDs
Open the glove box.
Press the button of a loaded magazine
slot for more than 2 seconds.
The light-emitting diodes in all maga-
zine slot buttons light up several times
in red, and
ALL EJECT
appears in the
display.
The CD changer ejects the CDs one af-
ter another.
The light-emitting diode for the maga-
zine slot being emptied flashes in red.
Take corresponding CD from CD load-
ing slot within 15 seconds.
The ejection procedure is finished once
you have removed all CDs from the CD
loading slot or if the CD changer can-
cels the procedure.
With all CDs removed from the maga-
zine,
MAG. EMPTY
appears in the
display.
iThe CD playback is interrupted while
one or more CDs are being ejected.
iIf you do not take the CD from the CD
loading slot within 15 seconds, the CD
changer will automatically pull the CD
back in. The system will then play the
CD.
If you are listening to a CD while eject-
ing another CD from the changer:
The Audio system stops playing the CD
while another CD is being ejected.
Once the CD has been ejected, the
Audio system will continue playing
where it left off.
Page 228 of 481

227 Controls in detail
Audio system
You can select from among the
inserted CDs with buttons
Rto6.
R = CD player in the audio unit
1to6 = CDs in the
CD changer*
The magazine slot number of the
selected CD appears next to
CD in the
display, and the number of the
currently played track appears next
to
TRACK
.Direct track entry
You can make a direct selection from
among the tracks on a CD.
Press * button.
Enter track number using buttons 1
to R.
The number of the track being played
appears next to
TRACK
in the display.
You can only enter available track
numbers.Skipping tracks forward/backward
Skipping tracks forward
PressHbutton briefly.
The next track will be played.
Skipping tracks backward
PressGbutton briefly.
If the track has been playing for
more than 10 seconds, the unit
skips back to the beginning of the
track currently playing. If less than
10 seconds have been played, the
unit skips back to the beginning of
the previous track.
Pressing theGorHbutton
repeatedly will result in multiple tracks
being skipped.
iIf there is no CD in the selected
magazine slot,
NO CD
appears in the
display with the corresponding slot
number.
Page 232 of 481

231 Controls in detail
Audio system
PIN entry
Enter PIN number using buttons 1
to R.
If necessary, correct number entered
with the
CLR
soft key. Press soft key
briefly to delete the last digit entered;
press soft key and hold to delete the
complete number.
Press
OK soft key after entering correct
PIN.
READY
or
ROAMING
will appear in the
display.Adjusting the volume
Turn rotary control of
E
button
during a telephone call.
The volume will increase or decrease
depending on the direction turned.
Adjusting sound
Adjust sound during a telephone call.
Sound adjustment (
page 207).Placing a call
Entering a telephone number and
starting the dialing process
Enter desired telephone number using
buttons 1 to R.
The number can have up to 32 digits,
but only twelve of these are visible in
the display.
iIf the PIN is entered incorrectly three
times,
NEED PUK
will appear in the
display. Enter PUK via your telephone.
Please refer to the separate telephone
operating instructions for more
information.
iThe volume can be adjusted separately
for telephone mode and audio mode.
Page 235 of 481

234 Controls in detailAudio system
Speed dial
If you have stored telephone numbers
as speed dial numbers in your
telephone, you can also enter these
with buttons 1 to R on the radio
head unit.
Press desired button 1 to R
briefly.
Press s button.
The call will be made.
Turbo dial
If you have stored telephone numbers
as turbo dial numbers in your
telephone, you can also enter these
with buttons 1 to R on the radio
head unit.
Press desired button 1 to R
until the call is made.Redial
If the number you have dialed is busy, you
can again place calls to the last ten
telephone numbers dialed using the redial
function.
Manual redial
Press s button.
The telephone number last dialed
will appear in the display.
Select desired telephone number
with button ‚ or ƒ.
The letter
L and the number of the
memory position appears in the
left-hand corner of the display. The
numbers are stored in the order of
the calls received.
When you have selected a number,
press s button.
The call will be made.
iIf you have activated the automatic
redial function on your telephone, the
number of the person being called is
automatically redialed after a short
waiting period if there is a busy signal.
Refer to the separate operating
instructions for the mobile telephone.
Page 237 of 481

236 Controls in detailAudio system
You are connected with the second
caller; the first caller is kept on hold.
Switching between calls
Press 2 and s buttons.
This switches between the calls.
The non-active call is kept on hold.
Terminating a call
Press t button.
The current call is terminated. You
are again connected with the caller
previously placed on hold.
Combining two calls
Press 3 and s buttons.
The calls are combined into one
call.
Terminating a combined call
Press t button.
The connection to both callers is
terminated.
TDMA or CDMA network phones
iYou will be notified of the second call
acoustically, but you will not see this in
the display.
Warning!
G
A driver’s attention to the road must always
be his/her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call. If you choose to use the tele-
phone
1 while driving, please use the
hands-free device and only use the tele-
phone when weather, road, and traffic con-
ditions permit.
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a ve-
hicle.
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.
1Observe all legal requirements.
Page 238 of 481

237 Controls in detail
Audio system
Using your Mercedes-Benz specified
mobile telephone*, a number of functions
and operating steps can be performed and
displayed in the audio system display.
Further operating instructions not covered
here can be found in the operating instruc-
tions for the multifunction steering wheel
and the mobile telephone*.
I f y o u r a u d i o s y s t e m i s s e t u p f o r t e l e p h o n e
operation, the t symbol will appear in
the display.
When you insert your Mercedes-Benz
specified mobile telephone* into the
telephone cradle, you will be prompted to
enter your PIN for 30 seconds
(page 237). This display disappears
when you press any button.
When your mobile telephone* is inserted
into the telephone cradle, you will see the
reception strength in the upper right-hand
corner of the display.Switching on the telephone
Switching on the telephone
Press h button.
If you have programmed an unlock
code for the telephone, you must now
enter the code.
Enter code using buttons 1
toR.
If necessary, correct number entered
with the
CLR
soft key. Press soft key
briefly to delete the last digit entered;
press soft key and hold to delete the
complete number.
Press
OK soft key after entering correct
code.
The telephone is unlocked. If you have
entered an incorrect code, you must
enter the correct code.
Switching off the telephone
Press h button for approx.
3 seconds.PROCESSING
appears in the display until
the telephone is off. Afterward,
PHONE OFF
appears in the display.
Adjusting the volume
Turn rotary control of
E
button
during a telephone call.
The volume will increase or decrease
depending on the direction turned.
iThe volume can be adjusted separately
for telephone mode and audio mode.
Page 239 of 481

238 Controls in detailAudio systemAdjusting sound
Adjust sound during a telephone call.
Sound adjustment (
page 207).
Placing a call
Entering a telephone number and
starting the dialing process
Enter desired telephone number using
buttons 1 to R.
The number can have up to 32 digits,
but only twelve of these are visible in
the display.
If necessary, correct number entered
with the
CLR
soft key. Press soft key
briefly to delete the last digit entered;
press soft key and hold to delete the
complete number.
After correct telephone number has
been entered, press s button.
Phone book
The numbers stored in the phone book of
the mobile telephone can be called up
either by name or number.
In addition, incoming calls are stored in the
phone book.
Searching and calling up phone book
entries by name
You can access your mobile
telephone’s phone book with the audio
system. You can access both the main
entries and the sub-entries of your
phone book.
iIf the telephone number has been
saved together with a name in the
phone book, the name will appear in
the display.
iThis is only possible, however, when
the call information transmitted
includes the number of the person
calling. If the telephone number is not
transmitted,
NO NUMBER
will be stored
in the phone book.