Page 213 of 474

212 Controls in detail
Audio system
Operating the single CD player in the 
audio system unit
Loading a CD
The single CD player in the audio system 
unit has capacity for one CD. The CD slot 
for loading the drive is located underneath 
the soft keys.
Make sure the system is switched on.
Insert CD into CD slot. The label side of 
the CD must face upwards.
The system automatically pulls the CD 
into the CD slot. The audio CD begins 
to play.Ejecting a CD
Make sure the system is switched on.
Press gbutton.
The system ejects the CD. 
Remove CD0 
will appear in the display.
Remove CD from slot.
With the CD removed, 
NO CD will appear 
in the display.Operational readiness of CD changer*
If a CD changer has been installed in the 
vehicle, it can be operated from the front 
control panel of the audio system.
The CD changer is located in the glove box.
1CD loading slot
2Magazine slot button
A magazine is integrated into the CD 
changer as a fixed element. It holds a 
maximum of six CDs.
The CD changer features six magazine slot 
buttons2 for controlling the loading 
procedure.
!If a CD is already loaded, it must be ejected 
before inserting a new CD. Inserting a second 
CD in the slot with another CD still loaded will 
cause damage to the CD drive not covered by the 
Mercedes-Benz Limited Warranty. 
iIf a CD has been inserted incorrectly or 
cannot be read, 
WRONG CD0 will appear in the 
display.
iIf you do not take the CD out of the CD slot 
within approximately 15 seconds, the system 
automatically pulls the CD back in and plays it.
If a CD is pulled back in, press gbutton, the 
CD will then be ejected. 
     
        
        Page 214 of 474

213 Controls in detail
Audio system
A light-emitting diode in the buttons shows 
the status of the corresponding magazine 
slot.
CD loading slot1 is above buttons2 
and is used to load CDs.Loading the CD magazine
Loading single CDs
Open the glove box (page 253).
1CD loading slot
2Magazine slot button
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.
LEDs
no LED is litMagazine slot is 
empty.
green LED flashesCD can be loaded.
red LED is litMagazine slot is in 
use.
red LED flashesCD is being ejected.
iIf a CD has been inserted incorrectly or 
cannot be read, 
WRONG CD0 will appear in the 
display.
Loading one or more CDs interrupts the 
CD playback. 
     
        
        Page 215 of 474

214 Controls in detail
Audio system
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.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.
iIf, for example, you only want to load maga-
zine slots 1 - 4 instead of all six, simply do not in-
sert a fifth CD into the CD loading slot. The CD 
changer will first try to load a CD but will then 
cancel the procedure, after which the radio will 
play the fourth CD.
iThe CD playback is interrupted while one or 
more CDs are being ejected. 
     
        
        Page 216 of 474

215 Controls in detail
Audio system
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 
after 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 
cancels the procedure.
With all CDs removed from the maga-
zine, 
MAG. EMPTY appears in the 
display.
Close the glove box.
iIf you do not take the CD from the CD load-
ing 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 ejecting another 
CD from the changer: The Audio system stops 
playing the CD while another CD is being eject-
ed. Once the CD has been ejected, the Audio 
system will continue playing where it left off.iIf you do not take the CD from the CD load-
ing slot within 15 seconds, the CD changer will 
automatically pull the CD back in. The system 
will then play the CD.
With all CDs ejected, press the bbutton to 
switch back to the radio mode. 
     
        
        Page 217 of 474

216 Controls in detail
Audio system
Playing CDs
Single CD player in the audio unit
Pressi button.
CD0 will appear in the upper left-hand 
corner of the display.
The CD will resume playback at the point 
where it was switched off.
CD changer*
Press Q button.
CD and the selected magazine slot 
number appear in the upper left-hand 
corner of the display.
If you have not removed a CD since the last 
time the CD audio source was activated, 
the last CD listened to will begin to play at 
the point where it was switched off.
After the last track on a CD has finished, 
the next CD is automatically played.Playing tracks
You have the following options:
Audio system with CD changer*: 
selecting CDs
Direct track entry
Track skip forward/reverse
Fast forward/reverse
Scan
Random tracks
Repeat track
Selecting CDs in the audio unit with 
CD changer*
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.
iIf there is no CD in the selected magazine 
slot, 
NO CD appears in the display with the 
corresponding slot number. 
     
        
        Page 219 of 474
218 Controls in detail
Audio system
Random play
The random function (RDM) plays the 
tracks of the current CD in random order.
Switching on random
Press RDM soft key.
RDM appears in the display. 
A randomly selected track is 
played.
Switching off random
Press RDM soft key again.Repeat
The track being played is repeated until the 
repeat function (RPT) is switched off.
Switching on repeat
Press RPT soft key.
RPT appears in the display.
Switching off repeat
Press RPT soft key again.Pause function
The CD changer mode is interrupted by an 
incoming call on the telephone* 
(
page 224).
Switching on pause function
PressFbutton.
The CD changer mode is 
interrupted and 
PAUSE appears in 
the display.
Switching off pause function
PressFbutton.
The CD changer mode is active 
again.
iWhen you start the RDM function, the RPT 
function is automatically switched off.iWhen you start the RPT function, the RDM 
function is automatically switched off. 
     
        
        Page 254 of 474

253 Controls in detail
Useful features
Useful features
Storage compartments Glove box
1Glove box lid release
2Glove box lid
Pull glove box lid release1 to open 
the glove box.
The glove box lid opens downward.
Push glove box lid2 up until it 
engages to close the glove box.Storage/telephone* compartment
1Armrest
2Recess for opening storage/tele-
phone* compartment
Reach into recess2 on the left or 
right side and lift armrest1 in 
direction of arrow to open the 
storage/telephone* compartment.
Lower armrest1 until it engages to 
close storage compartment.
Warning!G
To help avoid personal injury during a colli-
sion or sudden maneuver, exercise care 
when storing objects in the vehicle. Put lug-
gage or cargo in the trunk if possible. Do not 
place anything on shelf behind the roll bars.
Parcel nets cannot secure hard or heavy ob-
jects.
Keep compartment lids closed. This will help 
to prevent stored objects from being thrown 
around and injuring vehicle occupants dur-
ing an accident.
iThe glove box and the storage/telephone* 
compartment under the armrest are centrally 
locked and unlocked.
iThe CD changer* is located in the glove box.
iThe mobile phone cradle* (page 260), 
Roadside Assistance button• (
page 266) 
and the Information button¡ (
page 267) 
are located in the storage/telephone* compart-
ment. 
     
        
        Page 460 of 474

459 Index
A
ABS 84
Indicator lamp 348, 349
Messages in the multifunction 
display 362
Accelerator position, automatic 
transmission 159
Accessory weight 331
Accident 58
Air bags 66
Children in the vehicle 79
Front 69
Head-thorax 70
Knee bag 70
Occupant Classification System 
(OCS) 71
Passenger 69
Passenger front air bag off indicator 
lamp 74
Safety guidelines 68
Air conditioning
Automatic climate control* 191
Climate control 180
Air conditioning refrigerant 453
Air pressure see Tire inflation pressure
AIRSCARF neck level heating* 105Alarm system see Anti-theft systems
Alignment bolt
(Vehicle tool kit) 389, 416
Anticorrosion/antifreeze 457
Antilock Brake System see ABS
Anti-theft systems 90
Alarm system 90
Immobilizer 90
Tow-away alarm 91
Ashtray 32, 255
Aspect ratio 331
Audio search function 146
Audio system 193
Audio and telephone*, operation 193
CD changer* 212
CD operation 208
Introduction to satellite radio* 203
MP3 210
Operating and display elements 194
Auto-dimming*, Rear view mirrors 168
Automatic central locking 102
Control system 146
Automatic climate control* 182
Air conditioning refrigerant 452
Air conditioning, Cooling 191
Air recirculation mode 190Air vents 182, 188
Air volume 188
Automatic mode 186
Control panel 184
Deactivating 185
Defrosting 170, 189
Residual heat utilization 192
Sun sensor 25
Temperature 186
Automatic shift program 161
Automatic transmission*
Accelerator position 159
Automatic shift program 161
Automatic transmission fluid 
(ATF) 300
Driving 53
Emergency operation
(limp-home mode) 167
Fluid level 300
Gear ranges 160
Gear selector lever 155
Gear selector lever 
(Unlocking manually) 396
Gear selector lever control one-touch 
gearshifting 162
Gear selector lever positions 157