
103 Audio system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Fast forward / reverse
Press the   button. 
“FORWARD” will appear on 
the display and fast forward 
will start.
Press the   button. 
“REWIND” will appear on the 
display and fast reverse will 
start. 
Fast forward / reverse is stopped by pressing the same 
button again, or it will stop automatically at the 
beginning or the end of the tape. The track will 
automatically change at the end or beginning of the tape 
and play will begin.
Scanning 
Press the “SC” key. Each track 
on the cassette will be played 
for 8 seconds in ascending 
order.Note:
The beginning of a track can only be located if there is a 
break of at least 4 seconds between tracks.
Scan will be interrupted if the  ,  ,  ,   
buttons or the “SC” key is pressed.
Dolby NR
1 (noise reduction system)
To enable optimum 
reproduction of cassettes 
recorded using the Dolby B 
system, press the “AUD” key 
followed by the NR key so the 
“NR” in the display is not highlighted. To turn off 
Dolby B noise reduction, press the “NR” key so the “NR” 
in the display is highlighted.
1 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. 

105 Audio system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index CD changer installed
1CD changer
1 
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 and press the eject 
button  . The magazine will be ejected. Remove the 
magazine. Pull out the CD tray until its stop is reached 
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.
Playing CDs
Press the CD button. 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 prese t buttons 1-6.
The magazine slot number of 
the selected CD will then be 
displayed after “CD”. The 
number of the track being 
played will be displayed after 
“TRACK”.
3
2
2
1
4 

106 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. 

121 Garage door opener
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Note:
Following step 2, there are 30 seconds to initiate 
step 3.
3. Firmly press and release the programmed 
integrated remote control transmit button. Press 
and release same button a second time to complete 
the training process. (Some garage door openers 
may require you to do this procedure a third time to 
complete the training.)
4. Confirm the garage door operation by pressing the 
programmed button on the integrated remote 
control transmitter. 
Canadian programming:
During programming, your hand-held transmitter may 
automatically stop transmitting. Continue to press and 
hold the integrated remote control transmitter button 
(note steps 2 through 4 in the “Programming” portion) 
while you press and re-press (“cycle”) your hand-held 
transmitter every two seconds until the frequency 
signal has been learned. The indicator lamp will flash 
slowly and then rapidly after several seconds upon 
successful training.Operation of remote control:
1. Turn key in starter switch to position 1 or 2.
2. Select and press the appropriate button to activate 
the remote controlled device. The integrated remote 
control transmitter continues to send the signal as 
long as the button is pressed – up to 20 seconds.
Erasing the remote control memory:
1. Turn key in starter switch to position 1 or 2.
2. Simultaneously holding down the left and right side 
buttons for approximately 20 seconds, or until the 
control lamp blinks rapidly, will erase the codes of 
all three channels. 

137 Tele Aid
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Important!
If the indicator lamps do not start flashing after 
pressing one of the buttons or remain illuminated (in 
red) at any time, the Tele Aid system has detected a fault 
or the service is not currently active, and may not 
initiate a call. Visit your Mercedes-Benz Center and 
have the system checked or contact the Response Center 
at 1-800-756-9018 (in the USA) or 1-888-923-8367 (in 
Canada) as soon as possible.
Upgrade Signals
Tele Aid system processes calls using the following 
priority.
•Automatic emergency – First priority
•Manual emergency – Second priority
•Roadside assistance – Third priority
•Information – Fourth priority
Should a higher priority call be initiated while you are 
connected, an upgrade (alternating) tone will be heard, 
and the appropriate indicator lamp will flash. If certain 
information such as vehicle identification number or 
client information is not available, the operator may 
need to retransmit. During this time you will hear a chirp and voice contact will be interrupted. Voice 
contact will resume once the retransmission is 
completed. Once a call is concluded, a chirp will be 
heard and the appropriate indicator lamp will stop 
flashing. The audio system operation will resume.
Important!
If the indicator lamp continues to flash or the system 
does not reset, contact the Response Center at 
1-800-756-9018 (in the USA) or 1-888-923-8367 (in 
Canada), or Mercedes-Benz Client Assistance at 
1-800-FOR-MERCedes (1-800-367-6372) in the USA or 
Customer Service at 1-800-387-0100 in Canada.
Notes:
The indicator lamp in the respective button flashes until 
the call is concluded and this can only be completed by 
a Response Center or Client Assistance Center 
representative.
When a Tele Aid call has been initiated, the audio 
system is muted and the selected mode (radio, tape or 
CD) pauses. The optional cellular phone (if installed) 
switches off. If you must use this phone, the vehicle 
must be parked. Disconnect the coiled cord and place 
the call. 

156 Parking brake
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Parking brakeTo engage, firmly pull up brake handle (1). When the 
key is in steering lock position 2, the brake warning 
lamp in the instrument cluster should come on brightly.
To release, slightly pull up handle while pushing lock 
button (2), and guide lever downward to its stop. The 
brake warning lamp in the instrument cluster should go 
out.
A warning sounds, if you start to drive without having 
released the parking brake.
Also see brake warning lamp on page 183.
P42.20-2052-27
2
1
Wa r n i n g !
When leaving the vehicle always remove the 
electronic key from the steering lock, and lock the 
vehicle. Do not leave children unattended in the 
vehicle, or with access to an unlocked vehicle. 
Children could release the parking brake, which 
could result in an accident or serious injury.