
1 Contents
IntroductionProduct information  .......................... 7
Operator’s manual  ............................. 8
Where to find it  ................................ 13
Reporting Safety Defects  ................ 15Instruments and controlsInstruments and controls  ............... 18
Center console  .............................. 20
Overhead control panel  ............... 21OperationVehicle keys  ...................................... 24
Start lock-out  .................................... 27
General notes on the 
central locking system  ............... 27
Central locking system  ................... 28
Radio frequency and infrared 
remote control  .............................. 28
Opening and closing windows 
and sliding/pop-up roof from 
outside  ........................................... 32Panic button  ................................. 33
Mechanical keys  .......................... 33
Doors  ................................................. 34
Central locking switch .................... 36
Automatic central locking  .......... 37
Emergency unlocking in 
case of accident  .......................... 37
Trunk ................................................. 38
Trunk lid release switch  ................ 40
Trunk lid emergency 
release  ...........................................41
Antitheft alarm system ................... 42
Tow-away alarm  ............................... 44
Power seats, front ............................ 45
Front head restraints  ...................51
Rear head restraints  .................... 52
Backrest  ............................................ 54
Multicontour seat  ............................ 55
Heated seats  ..................................... 56
Seat belts and integrated 
restraint system  .......................... 58
Seat belts  .......................................... 58
Seat belt nonusage 
warning system ............................ 59BabySmart
TM airbag 
deactivation system  .................... 65
Self-test BabySmart
TM without 
special child seat installed  ......... 65
Supplemental restraint 
system (SRS)  ................................ 66
Emergency tensioning 
retractor (ETR) ............................. 66
Airbags  .............................................. 67
Safety guidelines for the 
seat belt, emergency 
tensioning retractor 
and airbag  ..................................... 73
Infant and child 
restraint systems  .......................... 75
Adjusting telescoping 
steering column  .......................... 78
Inside rear view mirror  .................. 79
Exterior rear view mirrors  ............. 80
Instrument cluster  ........................... 84
Indicator lamps in the 
instrument cluster  ...................... 86
Multifunction steering wheel, 
multifunction display  ................. 90 

5 ContentsChanging batteries in the 
electronic main key  ..................283
Synchronizing 
remote control  ............................285
Emergency operation of 
sliding/pop-up roof  ...................286
Manual release for 
fuel filler flap .............................287
Replacing wiper blade 
insert  ...........................................287
Trunk lamp  .....................................289
Roof rack  .........................................289
Vehicle careCleaning and care 
of the vehicle  ............................. 292
Power washer  ............................. 293
Tar stains  .................................... 293
Paintwork, painted body 
components  ................................ 293
Engine cleaning  ......................... 294
Vehicle washing  ......................... 294
Ornamental moldings  ............... 294
Headlamps, taillamps, 
turn signal lenses  ...................... 294Window cleaning  .......................295
Wiper blade  .................................295
Light alloy wheels  ......................295
Instrument cluster  .....................295
Steering wheel and 
gear selector lever ......................295
Cup holder ...................................296
Seat belts  .....................................296
Hard plastic trim items  .............296
Headliner and shelf below 
rear window  ................................296
Upholstery  ...................................296
Plastic and rubber parts ............296 

20 Instruments and controls
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
Center console1ESP control switch, see page 221
2Program mode selector switch, see page 200
3Switch for rear window sunshade, see page 152
4Airbag Off indicator lamp, see page 232
5Left power window switch, see page 147
6Trunk lid release switch, see page 40
7Mirror adjustment switch, see page 80
8Right power window switch, see page 147
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22 Contents – Operation
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
OperationVehicle keys  ...................................... 24
Start lock-out  .................................... 27
General notes on the 
central locking system  ............... 27
Central locking system  ................... 28
Radio frequency and infrared 
remote control  .............................. 28
Opening and closing windows 
and sliding/pop-up roof from 
outside  ........................................... 32
Panic button  .................................. 33
Mechanical keys  ........................... 33
Doors .................................................. 34
Central locking switch  .................... 36
Automatic central locking  .......... 37
Emergency unlocking in 
case of accident  ........................... 37
Trunk  ................................................. 38
Trunk lid release switch  ................. 40
Trunk lid emergency 
release  .......................................... 41
Antitheft alarm system  ................... 42
Tow-away alarm ................................ 44Power seats, front ............................ 45
Front head restraints  ...................51
Rear head restraints  .................... 52
Backrest  ............................................ 54
Multicontour seat  ............................ 55
Heated seats  ..................................... 56
Seat belts and integrated 
restraint system  .......................... 58
Seat belts  .......................................... 58
Seat belt nonusage 
warning system ............................ 59
BabySmart
TM airbag 
deactivation system  ................... 65
Self-test BabySmart
TM without 
special child seat installed  ......... 65
Supplemental restraint 
system (SRS)  ............................... 66
Emergency tensioning 
retractor (ETR)  ............................ 66
Airbags .............................................. 67
Safety guidelines for the 
seat belt, emergency 
tensioning retractor 
and airbag  ..................................... 73Infant and child 
restraint systems  .......................... 75
Adjusting telescoping 
steering column  .......................... 78
Inside rear view mirror  .................. 79
Exterior rear view mirrors  ............. 80
Instrument cluster  ........................... 84
Indicator lamps in the 
instrument cluster  ...................... 86
Multifunction steering wheel, 
multifunction display  ................. 90
Trip and main odometer, 
vehicle speed, FSS and 
engine oil level indicator  ........... 94
Audio systems  .................................. 95
Radio  .............................................. 95
CD player  ....................................... 96
Cassette player  ............................. 97
Telephone  .......................................... 98
Telephone book  ............................ 98
Redialing  ..................................... 100
Incoming call  .............................. 102
Navigation system  .......................... 103
Trip computer  ................................. 104 

25 Central locking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Electronic main key
The electronic main key has an integrated radio 
frequency and infrared remote control, plus removable 
mechanical key.
The remote control (1) operates all locks on the vehicle.
The mechanical key (2) works only in the driver’s door, 
trunk, and storage compartment locks.When using the mechanical key (2) for lock operations, 
it can be removed by sliding it out of the remote control. 
To do so, move locking tab (3) to the right and slide the 
mechanical key (2) in direction of arrow(4).
The remote control transmitter is located in the 
electronic main key.
The infrared receivers are located in the door handles.
Notes:
Remove the mechanical key from the electronic main 
key when using valet parking service. To prevent access 
to trunk or storage compartments lock them separately 
and retain the mechanical key.
See page 38 for separate locking of trunk and page 154 
for locking of glove box.
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26 Central locking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Electronic reserve key
The electronic reserve key is without remote control 
functions, but with removable mechanical key.The electronic reserve key (1) works only in the steering 
lock. There are no batteries inside the electronic reserve 
ke y.
The mechanical key (2) works only in the driver’s door, 
trunk, and storage compartment locks.
To use the mechanical key (2), remove it from its 
electronic reserve key (1).
Note:
We recommend that you carry the electronic reserve 
key plus mechanical key with you and keep it in a safe 
place (e.g. your wallet) so that it is always handy. Never 
leave the electronic reserve key in the vehicle.
Obtaining replacement keys
Your vehicle is equipped with a theft deterrent locking 
system requiring a special key manufacturing process. 
For security reasons, replacement keys can only be 
obtained from your authorized Mercedes-Benz Center.
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28 Central locking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Central locking system
Radio frequency and infrared remote control
The electronic main key has an integrated radio 
frequency and infrared remote control.
Due to the extended operational range of the remote 
control, it could be possible to unintentionally lock or 
unlock the vehicle by pressing the transmit button. If 
one of the transmit buttons is pressed, the battery check 
lamp lights up briefly – indicating that the batteries are 
in order. See page 283 for checking batteries.
The vehicle doors, trunk and fuel filler flap can be 
centrally locked and unlocked via remote control.
Opening and closing the windows and sliding/pop-up 
roof remotely can only be done with the infrared portion 
of the remote control. Aim transmitter eye at a 
receiver (6 or 7), press and hold transmit button Œ 
or ‹.
With vehicle centrally locked, the trunk can also be 
opened by using the remote control.
If the electronic key is inserted in steering lock, the 
vehicle cannot be locked or unlocked, and the trunk lid 
cannot be opened with the remote control.1Transmit button
‹ Locking
Œ Unlocking
Š Opening trunk (if not separately locked)
2Lamp for battery check (see page 283 for changing 
batteries if it does not light up brief ly)
3PANIC button
4Transmitter eye
5Locking tab for mechanical key
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30 Central locking system
Te ch n ica 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 unl ock  d river’s d oor 
and fuel filler flap.
Press transmit button Œ twice to unlock both doors, 
fuel filler flap, and trunk.
Global unlocking mode –
Press transmit button Œ  once to unlock both doors, 
fuel filler flap, and trunk.
Notes:
If the trunk was previously locked separately, it will 
remain locked, see page 38.
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 or trunk is opened, the electronic 
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 they do not blink three times, a door or trunk is not 
properly closed.
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 electronic main key (if ok, battery 
check lamp in electronic main key will light briefly 
when pressing transmit button) or to synchronize the 
remote control, see page 283 and 285.