
99 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index CD player1Radio system is switched off.
2The CD player is switched on.
3The number of the CD currently playing is displayed
if you are using a CD changer.
4Track number.
“TITLE” appears on vehicles with COMAND system.
“TRACK” appears on vehicles with audio system.
The radio must be switched on.
The CD player must be switched on.
Press the è or ÿ button repeatedly until
display (2) appears.
Press the j or k button repeatedly until the
required track number (4) is displayed.
Pressing the è or ÿ button displays the next or
previous system.
Note:
To select a CD from the magazine, press a number on
the audio system or the (optional) COMAND system key
pad located in the center dashboard.
P54.30-3635-27

160 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Audio and telephone operation
These instructions are intended to help you become
acquainted with your Mercedes-Benz audio system.
They contain useful tips and a detailed description of
the user functions.Operating safety
1Optional equipment
Dolby and the double-D symbol
Ù
are trademarks of Dolby
Laboratories Licensing Corporation. The Dolby noise reduction
system is manufactured under licence from Dolby Laboratories
Licensing Corporation.
Wa r n i n g !
In order to avoid distraction which could lead to an
accident, system settings should be entered with
the vehicle at standstill and systems should be
operated by the driver only when 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 50 feet (approximately14 m) every
second.
Wa r n i n g !
Any alterations made to electronic components can
cause malfunctions.The radio, cassette deck, CD changer
1 and
telephone
1 are interconnected. Therefore, when
one of the components is defective or has not been
removed/replaced properly this may impair the
function of other components.
These malfunctions might seriously impair the
operating safety of your vehicle.We recommend that you have any service work or
alterations to electronic components done at an
authorized Mercedes-Benz Center.

173 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index CD mode
General notes on CD mode
Should excessive temperatures occur while in CD mode,
“ CD TEMP HIGH ” wi ll ap pear on t he d is play and m uti ng
will take place. The unit will then switch back to radio
mode until the temperature has decreased to a safe
operating level.
Should temperatures occur while in CD mode which are
too low, “CD TEMP LOW” will be displayed, but the CD
will play. It will be sensitive to skipping if you are
driving over rough roads.
Handle CDs carefully to prevent interference during
playback.
Avoid fingerprints and dust on CDs. Do not write on the
CDs or apply any label or other material or devices to
the CDs.
Clean CDs from time to time with a commercially
available cleaning cloth. No solvents, anti-static sprays,
etc. should be used. Replace the CD in its container after use. Protect CDs
from heat and direct sunlight.
1Optional equipmentWa r n i n g !
The CD changer
1 is a Class1 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
1 does not
contain any parts which can be serviced by the
user. For safety reasons, have any service work
which may be necessary performed only by
qualified personnel.

174 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
CD changer
1 installed
1CD changer
2CD magazine
3CD tray
4CD
If a CD changer1 is installed, it can be operated from the
front control panel of the radio. A loaded magazine must
be installed for CD playing.
1 Optional equipment
Loading/emptying the CD magazine
Slide the changer door to the right until it latches open
and press the eject button . The magazine will be
ejected. Remove the magazine. Pull out the CD tray to its
stop and place the CDs in the recess of the tray, label
side up. Push the tray into the magazine in the direction
shown by the arrow. Insert the loaded magazine into the
changer.
Important!
Close the door after the magazine has been inserted.
3
2
2
1
4

175 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Playing CDs
Press the button. When the changer is used for the
first time after removing/inserting a magazine, play
begins at CD 1 track 1. After that, the CD most recently
played will start at the point where it was last switched
of f. CDs stored in the magazine can be selected by using
the station preset buttons 1-6.
The magazine slot number of
the selected CD will be
displayed after “CD”. The
number of the track being
played will be displayed after
“TRACK”.
If there is no CD in the
selected magazine slot,
“NO CD” and the
corresponding slot number
will be displayed
(e.g.“NO CD3”). After the last track on a CD has been
played, the next CD will automatically be selected and
played.Skipping tracks forward/backward
Press the button. The next track on the CD will be
played.
Press the button. If the track has been playing for
more than10 seconds, it will revert to the start of that
track. If it has been playing for less than ten seconds it
will revert to the preceding track. To skip several tracks,
the respective button must be pressed until the desired
track is reached. If the beginning or end of the CD is
reached during the search, the first or last track will be
played.

182 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Terminating call
A current call can be terminated by pressing the “END”
button.
Muting a call
Pressing the “MUT” key will
silence the call. The caller can
no longer hear you. To return
to the conversation, press the
“MUT” key again.Component malfunctions
The radio, CD changer
1, and Mercedes-Benz integrated
cellular telephone
1 are part of a fiberoptic networked
system. Failure of one of the components can lead to
malfunctions of the other components. Please contact
your authorized Mercedes-Benz Center or call the
Mercedes-Benz Client Assistance Center (in the USA)
at1-800-FOR-MERCedes, or Customer Service (in
Canada) at1-800-387-0100 for more information in the
event of a malfunction.
1Optional equipment

364 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Index
AAirbags .............................................................................. 65
ANTILOCK BRAKE SYSTEM
Malfunction and warning message ........................277
Antilock brake system (ABS) .......................................258
Antitheft alarm system ................................................... 38
Ashtrays .......................................................................... 199
Audio system
Button and soft key operation ................................. 163
Cassette mode ........................................................... 169
CD changer ................................................................ 174
CD mode ..................................................................... 173
Operating and display elements ............................. 161
Operating safety ........................................................ 160
Operation ................................................................... 163
Operation Audio and telephone .............................. 160
Radio mode ................................................................ 166
Telephone operation ................................................. 177
Audio systems .................................................................. 98
Cassette player .......................................................... 100
CD Player ...................................................................... 99
Radio ............................................................................. 98Automatic central locking ..............................................34
Automatic climate control ............................................ 146
Activated charcoal filter ........................................... 154
Adjustable air outlets,
rear passenger compartment ............................. 159
Air recirculation ........................................................ 153
Air volume, manual .................................................. 151
Basic setting ............................................................... 150
Defrosting ................................................................... 152
Display and controls ................................................. 148
Dust filter ................................................................... 150
Economy mode .......................................................... 155
Front center console storage
compartment ventilation ..................................... 158
Residual engine heat utilization ............................. 156
Special settings ......................................................... 151
Windows fogged up on the inside .......................... 152
Windows fogged up on the outside ........................ 152
Automatic transmission ............................................... 234
Fluid level ...................................................................301
Transmission selector lever,
manually unlocking ............................................ 325