
109 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 

173 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. 

186 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” will appear on the display and muting 
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.Only use CDs, which bear the 
label shown and that conform to 
the compact disc digital audio 
standard (IEC 60908).
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.
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. 

187 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 

188 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 
off. 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. 

195 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) at 
1-800-FOR-MERCedes, or Customer Service (in Canada) 
at 1-800-387-0100 for more information in the event of a 
malfunction.
1Optional equipment 

207 Interior equipment
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Glove box
1Unlocked positio n
2Locked position
3Glove box
4Glove box lid release
Pull to openNotes:
Prior to closing the glove box, close the compartment for 
glasses first.
The glove box can be locked and unlocked with the 
mechanical key. See page 29 for instructions on how to 
remove the mechanical key from the electronic key (e.g. 
for valet parking service).
Vehicles with optional CD-changer:
The CD-changer is located in the glove box. 

385 Index
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car careIndex
Index
AAdding engine oil...........................................................  318
Air pump ......................................................................... 322
Airbags ..............................................................................  72
ANTILOCK BRAKE SYSTEM
Malfunction and warning message........................ 293
Antilock brake system (ABS) ....................................... 272
Antitheft alarm system ...................................................  44
Ashtrays...........................................................................  211
Audio system
Button and soft key operation.................................  176
Cassette mode ...........................................................  182
CD changer ................................................................  187
CD mode .....................................................................  186
Operating and display elements.............................  174
Operating safety ........................................................  173
Operation....................................................................  176
Operation Audio and telephone ..............................  173
Radio mode ................................................................  179
Telephone operation .................................................  190Audio systems................................................................. 108
Cassette player ..........................................................  110
CD Player .................................................................... 109
Radio ........................................................................... 108
Automatic central locking .............................................. 40
Automatic climate control ............................................  160
Activated charcoal filter ...........................................  168
Adjustable air outlets, rear passenger 
compartment ......................................................... 172
Air recirculation ........................................................  167
Air volume, manual ..................................................  165
Basic setting...............................................................  164
Defrosting ...................................................................  166
Display and controls .................................................  162
Dust filter....................................................................  164
Economy mode ..........................................................  169
Front center console storage 
compartment ventilation.....................................  171
Residual engine heat utilization .............................  169
Special settings .........................................................  165
Windows fogged up on the outside ........................  166
Automatic transmission ...............................................  246
Fluid level ...................................................................  317
Transmission selector lever, 
manually unlocking ............................................  344