
142 Audio system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Scan tuning
Press the SC key. Each strong 
receivable station on the band 
selected will be tuned in for 
8 seconds. The first scan will 
tune only the stations with a 
high signal strength. The second scan will tune every 
receivable station. By pressing either the  ,  , 
 or   buttons, or the “SC” key the scan mode 
can be cancelled.
Station memory
Ten stations can be stored in 
the AM and FM bands via the 
alpha-numeric keypad. The 
“0” button corresponds to 
location 10. Weatherband 
(WB) channels 1 to 7 can be retrieved via the alpha-
numeric keypad and are preset at the factory.Storing stations
Hold the number button down for approximately 
2 seconds. The currently displayed frequency is stored 
on the selected station button. The storage procedure is 
confirmed by a short signal tone.
Retrieving a station from memory
Press the desired station button.
Direct frequency input (AM and FM only)
Select the band. Press the 
“ button and enter the 
desired frequency using the 
alpha-numeric keypad. 
Frequencies outside of the 
frequency ranges (frequencies specified on page 141) 
will not be accepted. The frequency input mode is 
cancelled if no button is pressed within 4 seconds. 

143 Audio system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Cassette mode 
Note:
Vehicles equipped with the COMAND system do not 
come with a factory installed cassette mechanism. 
A standard 1/8” stereo phono plug for auxiliary audio 
input (located in glove box) is provided for connection of 
a portable battery operated cassette player or any other 
portable device which uses a headphone output. Please 
refer to the COMAND operating manual for information 
concerning the activation of the audio input.Playing cassettes
Press the “TAPE” button. When the eject (EJ) key is 
pressed, the display folds down and the cassette slot 
becomes visible. Push the cassette into the slot until it 
engages. The cassette will be pulled in automatically.
Notes:
Do not press directly on the radio display 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. 

144 Audio system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Important!
If the display is in the down position for more than 
20 seconds, 2 successive beeps will be heard. This will 
continue at 5 second intervals until the display is 
returned to its normal position.
The radio will switch to 
cassette mode. Track 1 will be 
played and “SIDE 1” 
displayed. 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 automatically. 
A cassette symbol in the display indicates that a tape is 
in the mechanism. This symbol appears in all modes but 
not in cassette mode.
The cassette will not be ejected when the radio is 
switched off or another mode is selected.
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”.Cassette eject
Press the eject (EJ) key. The display will fold down and 
the cassette will be ejected. Remove the cassette, then 
fold the display back up manually. The radio will switch 
back to radio mode automatically.
Note:
The cassette will not be ejected when the radio is 
switched off.
Important!
If the display is in the down position for more than 
20 seconds, 2 successive beeps will be heard. This will 
continue at 5 second intervals until the display is 
returned to its normal position.
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. 

149 Audio system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index 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 forwards / backwards
Press the   button. The next track on the CD will be 
played.
Press the   button. If the track has been playing for 
more than 10 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.Fast forward / reverse
Press the   button and hold it down for audible fast 
forward.
Press the   button and hold it down for audible 
reverse.
The search will stop when the 
button is released. The 
relative time of the track will 
be displayed during the 
search. The search mode will 
cancel if the beginning or end of the CD is reached.
Scanning
Press the SC key. Each track will be played for 8 seconds 
in ascending order. The search will stop at the track in 
question if the  ,  ,  ,   buttons or the 
“SC” key is pressed. 

187 The first 1 000 miles
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index The first 1 000 miles (1 500 km)
The more cautiously you treat your vehicle during the 
break-in period, the more satisfied you will be with its 
performance later on. Therefore, drive your vehicle 
during the first 1 000 miles (1 500 km) at moderate 
vehicle and engine speeds.
During this period, avoid heavy loads (full throttle 
driving) and excessive engine speeds.
Avoid accelerating by kickdown. It is not recommended 
to brake the vehicle by manually shifting to a lower gear. 
We recommend that you select positions “3”, “2” or “1” 
only at moderate speeds (for hill driving).
After 1 000 miles (1 500 km) speeds may be gradually 
increased to the permissible maximum.Maintenance
We strongly recommend that you have your vehicle 
serviced by your authorized Mercedes-Benz Center, in 
accordance with the Service Booklet at the times called 
for by the FSS.
Failure to have the vehicle maintained in accordance 
with the Service Booklet at the designated times /
mileage may result in vehicle damage not covered by 
the Mercedes-Benz Limited Warranty.
For information on the Flexible service system (FSS), 
see page 114. 

189 Tele Aid
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index System self-check
Initially, after turning the electronic key in steering lock 
to position 2, malfunctions are detected and indicated 
(the indicator lamps in the SOS button, the Roadside 
Assistance button• and the Information 
button¡ stay on longer than 10 seconds or do not 
come on). The message “TELE AID – VISIT 
WORKSHOP” appears for approx. 10 seconds in the 
multifunction display. Emergency calls
An emergency call is initiated automatically:
•following an accident in which the Emergency 
Tensioning Devices (ETDs) or airbags deploy,
•if the antitheft alarm or the tow away alarm stays on 
for more than 20 seconds, see pages 39 and 41.
An emergency call can also be initiated manually by 
opening the cover next to the inside rear view mirror 
labeled SOS, then briefly pressing the button located 
under the cover. See below for instructions on initiating 
an emergency call manually.
Once the emergency call is in progress, the indicator 
lamp in the SOS button will begin to flash. The message 
“EMERGENCY CALL – CONNECTING CALL” appears in 
the multifunction display. When the connection is 
established, the message “EMERGENCY CALL – CALL 
CONNECTED” appears in the multifunction display. All 
information relevant to the emergency, such as the 
location of the vehicle (determined by the GPS satellite 
location system), vehicle model, identification number 
and color are generated.
A voice connection between the Response Center and 
the occupants of the vehicle will be established 
automatically soon after the emergency call has been 
Wa r n i n g !
If the indicator lamps in the SOS button, in the 
Roadside Assistance button and/or in the 
Information button do not come on during the 
system self-check or if any of these indicators  
remain illuminated constantly in red and/or the 
message "TELE AID - VISIT WORKSHOP!" is 
displayed in the multifunction display after the 
system self-check, a malfunction in the system has 
been detected.If a malfunction is indicated as outlined above, the 
system may not operate as expected. Have the 
system checked at the nearest Mercedes-Benz 
Center as soon as possible. 

192 Tele Aid
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Roadside Assistance button •
Located below the center armrest cover is the Roadside 
Assistance button•. Pressing and holding the 
button (for longer than 2 seconds) will initiate a call to a 
Mercedes-Benz Roadside Assistance dispatcher. The 
button will flash while the call is in progress. The 
message “ROADSIDE ASSISTANCE – CONNECTING 
CALL” will appear in the multifunction display. When 
the connection is established, the message “ROADSIDE 
ASSISTANCE – CALL CONNECTED” appears in the 
multifunction display. The Tele Aid system will transmit 
data generating the vehicle identification number, 
model, color and location (subject to availability of 
cellular and GPS signals).
A voice connection between the Roadside Assistance 
dispatcher and the occupants of the vehicle will be 
established. When a voice connection is established the 
audio system mutes and the message “TELE AID – 
ROADSIDE ASSISTANCE CALL ACTIVE” appears in the 
multifunction display. The nature of the need for 
assistance can then be described. The Mercedes-Benz 
Roadside assistance dispatcher will either dispatch a 
qualified Mercedes-Benz technician or arrange to tow 
your vehicle to the nearest Mercedes-Benz Center. For services such as labor and/or towing charges may 
apply. Refer to the Roadside Assistance manual for more 
information.
These programs are only available in the USA:
•Sign and Drive services: Services such as jump start, 
a few gallons of fuel or the replacement of a flat tire 
with the vehicle spare tire are obtainable,
•Remote Vehicle Diagnostics: This function permits 
the Mercedes-Benz Roadside Assistance dispatcher 
to download malfunction codes and actual vehicle 
data.
Notes:
The indicator lamp in the Roadside Assistance 
button• remains illuminated in red for approx. 
10 seconds during the system self-check after turning 
electronic key in steering lock to position 2 (together 
with the SOS button and the Information button¡).
See system self-check on page 189 when the indicator 
lamp does not light up in red or stays on longer than 
approximately 10 seconds. 

193 Tele Aid
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index If the indicator lamp in the Roadside Assistance 
button• is illuminated continuously and there was 
no voice connection to the Response Center established, 
then the Tele Aid system could not initiate an Roadside 
Assistance call (e.g. the relevant cellular phone network 
is not available). The message “ROADSIDE 
ASSISTANCE – CALL FAILED” appears in the 
multifunction display.
Roadside Assistance calls can be terminated using the 
ìbutton on the multifunction steering wheel.
Information button ¡
Located below the center armrest cover is the 
Information button¡. Pressing and holding the 
button (for longer than 2 seconds) will initiate a call to 
the Customer Assistance Center. The button will flash 
while the call is in progress. The message “INFO – 
CONNECTING CALL” will appear in the multifunction 
display. When the connection is established, the 
message “INFO – CALL CONNECTED” appears in the 
multifunction display. The Tele Aid system will transmit 
data generating the vehicle identification number, 
model, color and location (subject to availability of 
cellular and GPS signals).A voice connection between the Customer Assistance 
Center representative and the occupants of the vehicle 
will be established. When a voice connection is 
established the audio system mutes and the message 
“TELE AID – INFO CALL ACTIVE” appears in the 
multifunction display. Information regarding the 
operation of your vehicle, the nearest Mercedes-Benz 
Center or Mercedes-Benz USA products and services is 
ava i l ab le  to  yo u .
For more details concerning Tele Aid, please visit 
www.mbusa.com and use your ID and password, sent to 
you separately, to learn more (USA only).
Notes:
The indicator lamp in the Information button¡ 
remains illuminated in red for approximately 
10 seconds during the system self-check after turning 
electronic key in steering lock to position 2 (together 
with the SOS button and the Roadside Assistance 
button•).
See system self-check on page 189 when the indicator 
lamp does not light up in red or stays on longer than 
approximately 10 seconds.