Page 28 of 290

25 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Locking and unlocking with remote control
Unlocking:
Press transmit button Œ. All turn signal lamps blink 
once to indicate that the vehicle is unlocked.
The remote control can be programmed for two kinds of 
unlocking modes (see below):
Selective unlocking mode –
Press transmit button Œ once to unlock driver’s door, 
storage compartment in armrest, and fuel filler flap.
Press transmit button Œ twice to unlock both doors, 
storage compartment in armrest, fuel filler flap, and 
trunk.
Global unlocking mode –
Press transmit button Œ  once to unlock both doors, 
storage compartment in armrest, fuel filler flap, and 
trunk.
Notes:
The presently active unlocking mode (selective or 
global) can only be determined by unlocking the vehicle 
with the remote control (see below for changing mode).If within 40 seconds of unlocking with the remote 
control, neither door is opened, the key is not inserted 
in the steering lock, or the central locking switch is not 
activated, the vehicle will automatically lock.
Locking:
Press transmit button ‹ once. All turn signal lamps 
blink three times to indicate that the vehicle is locked.
If the turn signal lamps do not blink, a door or trunk is 
not closed properly.
Note:
If the vehicle cannot be locked or unlocked by pressing 
the transmit button, then it may be necessary to change 
the batteries in the remote control (if ok, battery check 
lamp in transmitter will light briefly when transmitting) 
or to synchronize the remote control, see page 236 
and 237.
Choosing global or selective mode on remote control
Press and hold transmit buttons ‹ and Œ 
simultaneously for five seconds to reprogram the 
remote control. Battery check lamp will blink two times 
indicating the completed mode change. 
     
        
        Page 64 of 290

61 Restraint systems
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Safety guidelines for the seat belt, emergency 
tensioning retractor and airbag
If you believe that, even with the use of these 
guidelines, it would be safer for your front 
passenger seat occupant to have the passenger side 
door mounted side airbag deactivated, then 
deactivation can be accomplished upon your 
written election to do so at your authorized 
Mercedes-Benz Center at an additional cost. Please 
contact your local authorized Mercedes-Benz 
Center or call our Client Assistance Center at 
1-800-FOR-MERCedes (1-800-367-6372) for details.Wa r n i n g !
• Damaged seat belts or belts that were highly 
stressed in an accident must be replaced and 
their anchoring points must also be checked. 
Use only belts installed or supplied by an 
authorized Mercedes-Benz Center.
• Airbags and ETR’s are designed to function on 
a one-time-only basis. An airbag or emergency 
tensioning retractor (ETR) that was activated 
must be replaced.• Do not pass belts over sharp edges.• Do not make any modification that could 
change the effectiveness of the belts.• No modifications of any kind may be made to 
any components or wiring of the “SRS”. This 
includes changing or removing any component 
or part of the “SRS”, the installation of 
additional trim material, badges etc. over the 
steering wheel hub, passenger airbag cover, or 
door trim panels, and installation of additional 
electrical / electronic equipment on or near 
“SRS” components and wiring. Keep area 
between airbags and occupants free of objects 
(e.g. packages, purses, umbrellas, etc.). 
     
        
        Page 107 of 290

104 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, 
“TEMP HIGH” will appear in 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, “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 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 Class 1 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. 
     
        
        Page 115 of 290
112 Interior equipment
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Interior lighting
1Automatic interior lighting.
Interior lamp is switched on, and off (soft fade) 
delayed, when unlocking or locking the vehicle, or 
when opening or closing a door. However, there will 
be no (soft fade) delay when the key is in steering 
lock position 2.2Door contact off.
Interior lamps remain switched off, even when 
opening a door.
3Interior lamp on.
Notes:
If a door remains open and the switch in position 1, the 
interior lamp switches off after approximately 
5minutes.
The trunk lamp is switched on and off with the interior 
lamp.
Night security illumination
When exiting the vehicle after driving with the exterior 
lamps on, they switch on again for added security for 
approximately 30 seconds after closing the last door. 
The lamp-on time period can be changed at your 
Mercedes-Benz Center.