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53 Restraint systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Seat belt nonusage warning system
With the key in steering lock position 2, a warning 
sounds for a short time if the driver’s seat belt is not 
fastened.
BabySmart
TM is a trademark of Siemens Automotive Corp.
Wa r n i n g !
Failure to wear and properly fasten and position 
your seat belt greatly increases your risk of 
injuries and their likely severity in an accident. 
You and your passenger should always wear seat 
belts.If you are ever in an accident, your injuries can be 
considerably more severe without your seat belt 
properly buckled. Without your seat belt buckled, 
you are much more likely to hit the interior of the 
vehicle or be ejected from it. You can be seriously 
injured or killed.In the same crash, the possibility of injury or death 
is lessened if you are wearing your seat belt.Never let more people ride in the vehicle than there 
are seat belts available. Be sure everyone riding in 
the vehicle is correctly restrained with a separate 
seat belt.
Wa r n i n g !
Children 12 years old and under must never ride in 
this vehicle, except in a Mercedes-Benz authorized 
BabySmart
TM compatible child seat, which operates 
with the BabySmart
TM system installed in the 
vehicle to deactivate the passenger side front 
airbag when it is properly installed. Otherwise they 
will be struck by the airbag when it inflates in a 
crash. If this happens, serious or fatal injury can 
result.
Infants and small children must be seated in an 
appropriate infant or child restraint system, which 
is properly secured with the vehicle’s seat belt, 
fully in accordance with the child seat 
manufacturer’s instructions.A child’s risk of serious or fatal injuries is 
significantly increased if the child restraints are 
not properly secured in the vehicle and the child is 
not properly secured in the child restraint. 
     
        
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99 Audio system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Operating and display elements
1On/off, volume, see page 102
2Telephone mode selector, see page 113
3Seek, see page 104, 107 and 111
4Radio mode selector, see page 104
5Tune, see page 104 and 105
Fast Forward/Reverse, see page 108 and 111
6CD mode selector, see page 1107Display panel, see page 106
8Alpha-numeric keypad for
station storage and frequency entry, see page 105
optional telephone, see page 113
Tape eject, see page 107
Tape track select, see page 107
Dolby, see page 108
CD Random/repeat, see page 112
9Function button, see page 105 and 112 
     
        
        Page 110 of 302

106 Audio system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Cassette mode 
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.
Note:
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. 
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”. 
     
        
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107 Audio system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index 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.Track search forwards/backwards
Press the   button. 
“SEEK FWD” will be shown on 
the display and the track 
search will run the tape 
forwards to the start of the 
next track.
Press the   button. 
“SEEK RWD” will be shown 
on the display and the track 
search will run the tape 
backwards to the start of the 
track currently playing. Track search can be interrupted 
by pressing the same button again.
Note:
The beginning of a track can only be located if there is a 
break of at least 4 seconds between tracks.