
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  .................................... 26
General notes on the central 
locking system ............................. 26
Central locking system  ................... 27
Radio frequency and infrared 
remote control  .............................. 27
Opening and closing windows 
and sliding/pop-up roof from 
outside ........................................... 30Panic button  ..................................31
Mechanical keys  ...........................31
Doors ................................................. 32
Central locking switch .................... 34
Automatic central locking .............. 35
Emergency unlocking in case of 
accident ........................................ 35
Tailgate .............................................. 36
Antitheft alarm system ................... 39
Tow-away alarm  ................................41
Power seats front  ............................. 42
Front seat head restraints .............. 48
Rear seat head restraints  ............... 49
Multicontour seat  .............................51
Seat heater ........................................ 52
Seat ventilation ................................ 55
Seat belts and integrated restraint 
system .......................................... 57
Seat belts  .......................................... 57
Seat belt nonusage warning
system .......................................... 58
BabySmart
TM airbag deactivation 
system .......................................... 65Self-test BabySmart
TM without 
special child seat installed  ......... 65
Supplemental restraint 
system (SRS)  ................................ 66
Emergency tensioning 
device (ETD) ................................. 67
Airbags .............................................. 68
Safety guidelines for the seat belt, 
emergency tensioning device and 
airbag ............................................ 75
Infant and child restraint
systems ......................................... 77
Steering wheel adjustment  ............ 81
Rear view mirrors  ............................ 82
Instrument cluster  ........................... 86
Multifunction steering wheel, 
multifunction display  ................. 92
Trip and main odometer, vehicle 
speed, FSS and engine oil level 
display .......................................... 96
Audio systems  .................................. 97
Radio .............................................. 97
CD player  ....................................... 98
Cassette player  ............................. 99
Telephone ........................................ 100 

22 Contents – Operation
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
OperationVehicle keys  ...................................... 24
Start lock-out  .................................... 26
General notes on the central 
locking system ............................. 26
Central locking system  ................... 27
Radio frequency and infrared 
remote control  .............................. 27
Opening and closing windows 
and sliding/pop-up roof from 
outside ........................................... 30
Panic button  .................................. 31
Mechanical keys  ........................... 31
Doors .................................................. 32
Central locking switch  .................... 34
Automatic central locking  .............. 35
Emergency unlocking in case of 
accident ........................................ 35
Tailgate .............................................. 36
Antitheft alarm system  ................... 39
Tow-away alarm ................................ 41
Power seats front  ............................. 42
Front seat head restraints  .............. 48Rear seat head restraints  ............... 49
Multicontour seat  .............................51
Seat heater ........................................ 52
Seat ventilation ................................ 55
Seat belts and integrated restraint 
system .......................................... 57
Seat belts  .......................................... 57
Seat belt nonusage warning
system .......................................... 58
BabySmart
TM airbag deactivation 
system .......................................... 65
Self-test BabySmart
TM without 
special child seat installed  ......... 65
Supplemental restraint
system (SRS)  ............................... 66
Emergency tensioning 
device (ETD)  ................................ 67
Airbags .............................................. 68
Safety guidelines for the seat belt, 
emergency tensioning device and 
airbag ........................................... 75
Infant and child restraint
systems ........................................ 77
Steering wheel adjustment  .............81
Rear view mirrors  ........................... 82Instrument cluster  ........................... 86
Multifunction steering wheel, 
multifunction display  ................. 92
Trip and main odometer, vehicle 
speed, FSS and engine oil level 
display .......................................... 96
Audio systems  .................................. 97
Radio .............................................. 97
CD player  ....................................... 98
Cassette player  ............................. 99
Telephone ........................................ 100
Telephone book  .......................... 100
Redialing ..................................... 102
Incoming call  .............................. 104
Navigation system .......................... 105
Trip computer ................................. 106
Malfunction message memory  .... 108
Individual settings ..........................110
Setting the audio volume  ..............113
Flexible service system (FSS)  .......114
Engine oil level indicator ...............117
Engine oil consumption  .................118
Exterior lamp switch  ......................119
Night security Illumination  ......... 120 

24 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Ve h i c l e  k e y s
Included with your vehicle are 2 electronic keys with 
integrated radio frequency and infrared remote controls 
plus removable mechanical key.
The locking tabs for the mechanical key portion of the 
two electronic keys are a different color to help 
distinguish it.
Wa r n i n g !
When leaving the vehicle, always remove the 
electronic key from the steering lock, and lock your 
vehicle. Do not leave children unattended in the 
vehicle, or with access to an unlocked vehicle. 
Unsupervised use of vehicle equipment may cause 
an accident and/or serious personal injury. 

25 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Electronic key
The electronic 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, 
tailgate, 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 key.
The infrared receivers are located in the front door 
handles.
Notes:
Remove the mechanical key from the electronic key 
when using valet parking service. To prevent access to 
storage compartments lock them separately and retain 
the mechanical key.
See page 36 for separate locking of tailgate and 
page 163 for locking of glove box.
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.
P80.35-2030-26
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27 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Central locking system
Radio frequency and infrared remote control
The electronic 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 304 for checking batteries.
The vehicle doors, tailgate 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 ‹.
If the electronic key is inserted in steering lock, the 
vehicle cannot be locked or unlocked with the remote 
control.1Transmit button
‹ Locking
Œ Unlocking
2Lamp for battery check (see page 304 for changing 
batteries if it does not light up briefly)
3PA N I C  b u t t o n
4Transmitter eye
5Locking tab for mechanical key
P80.35-2033-26
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93 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Depending on your vehicle’s equipment, you may use 
the buttons on the multifunction steering wheel to call 
up, control and set the following systems in the 
multifunction display:
1Trip odometer and main odometer, see page 96
Vehicle speed, see page 96
Flexible service system (FSS), see page 114
Engine oil level indicator, see page 117
2Audio systems, see page 97
Radio, see page 97
CD player (optional), see page 98
Cassette player, see page 99
3Navigation system (optional), see page 105
4Malfunction message memory, see page 108
5Individual settings, see page 110
6Trip computer, see page 106
After start
After reset
Fuel tank content
7Telephone (if so equipped), see page 100Press the è or ÿ button repeatedly until the 
required system is displayed.
Pressing the è button advances the display to the 
next system.
Pressing the ÿ button returns the display to the 
previous system.
You may call up additional displays within some of these 
categories by pressing the j or k button.
Wa r n i n g !
A driver’s attention to the road must always be his /
her primary focus when driving. For your safety and the safety of others, selecting 
features through the multifunction steering wheel 
should only be done by the driver when traffic and 
road conditions permit it to be done safely. 
Programming individual settings in the system can 
only be made while the vehicle is at standstill. 

95 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Press the è or ÿ button repeatedly until the 
required system is displayed.
Pressing the è button advances the display to the 
next system.
Pressing the ÿ button returns the display to the 
previous system.
You may call up additional displays in some systems by 
pressing the j or k button.Note:
The displays in the multifunction display can be set to 
German, English, French, Italian or Spanish language. 
See the “TEXT” individual setting on page 110 for 
instructions on changing the language setting.
The displays for the audio systems (radio, CD player, 
cassette player) will appear in English, regardless of the 
language selected. 

97 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Audio systems
Radio1Audio system is switched off.
2The radio is switched on.
3Wave band setting and memory location number, 
where appropriate.
4Station frequency.
5This only appears when “MEMORY” rather than 
“FREQUENCY” has been selected in the Individual 
settings. See page 110.
The radio must be switched on.
Press the è or ÿ button repeatedly until 
display (2) appears.
Press button j or k repeatedly until the required 
station or frequency is displayed.
Use the j of k button to select a stored station or 
station frequency. This depends on the selection made 
in the “STATION SEARCH USING” setting menu.
See Individual settings, page 110.
Pressing the è or ÿ button displays the next or 
previous system.
P54.30-2936-27