
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 

19 Instruments and controls
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index 1Parking assist warning indicators, see page 236
2Side defroster outlet
3Side air outlet, adjustable
4Air volume control for side air outlet
5Exterior lamp switch, see page 119
6Parking brake release, see page 212
7Hood lock release, see page 270
8Combination switch, see page 122
9Cruise control switch, see page 222
10Instrument cluster, see page 86
11Multifunction steering wheel, see page 92
Horn (with electronic key in steering lock 
position 1 or 2)
Airbag, see page 68
12Steering lock with ignition / starter switch, 
seepage200
13Voice control system lever, see separate operating 
instructions
14Center air outlets, adjustable15Air volume control for center air outlets
16Left front seat heater switch, see page 52
Left front seat ventilation switch, see page 55
17Headlamp washer switch, see page 121
18Rear window wiper and washer switch, see page 124
19Hazard warning flasher switch, see page 125
20Central locking switch, see page 34
21Tow- away alarm  s witch, s ee page 41
Indicator lamp for antitheft alarm system, 
seepage39
22Right front seat heater switch, see page 52
Right front seat ventilation switch, see page 55
23Glove box (illuminated with electronic key in 
steering lock position 1 or 2)
24Automatic climate control, see page 126
Rear window defroster switch
Activated charcoal filter switch
25Audio system, see page 135
26Storage / eyeglasses compartment, see page 164 

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 

26 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Start lock-out
Important!
Removing the electronic key from the steering lock 
activates the start lock-out. The engine cannot be 
started.
Inserting the electronic key in the steering lock 
deactivates the start lock-out.
Note:
In case the engine cannot be started (vehicle’s battery is 
in order), the system is not operational. Contact an 
authorized Mercedes-Benz Center or call 1-800-FOR-
MERCedes (in the USA), or 1-800-387-0100 (in Canada).General notes on the central locking system
If the electronic key is inserted in the steering lock, the 
vehicle cannot be locked or unlocked with the remote 
control.
If the vehicle cannot be locked or unlocked:
•Aim transmitter eye at a receiver of either front door 
handle. Check the batteries of the electronic key, see 
page 304, or synchronize the remote control, see 
page 306.
•Use the mechanical key to unlock the vehicle. To 
start engine, insert the electronic key in the steering 
lock. There could be a slight delay until the 
electronic key can be turned in the steering lock.
Important!
When unlocking the driver’s door with the mechanical 
key, the exterior lamps will flash and the alarm will 
sound.
To cancel the alarm, insert the electronic key in the 
steering lock or press buttonŒ or‹ on the 
electronic key. 

31 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Panic button
To activate press and hold button (1) for at least one 
second. An audible alarm and blinking exterior lamps 
will operate for approximately 3 minutes.
To deactivate press button (1) again, or insert electronic 
key in steering lock.Note:
For operation in the USA only: This device complies 
with Part 15 of the FCC Rules. Operation is subject to 
the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, 
including interference that may cause undesired 
operation.
Any unauthorized modification to this device could void 
to the user’s authority to operate the equipment.
Mechanical keys
The mechanical keys work only in the driver’s door, 
tailgate, and storage compartment locks.
Notes:
The mechanical key does not operate the central locking 
system or antitheft alarm system.
The fuel filler flap cannot be locked or unlocked with 
the mechanical key.
If the fuel filler flap cannot be opened, see page 308.
P80.35-2034-26 

32 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Doors
1Opening – pull handle
2Unlocking driver’s door
3Locking driver’s door
4Individual door from inside:
Push lock button down to lock.
Important!
The mechanical key does not operate the central locking 
system or antitheft alarm system.5Front door from inside:
Pull handle to unlock.
When you lock the driver’s door with the mechanical 
key, the door lock button should move down.
Each individual door must be locked with the respective 
door lock button – the driver’s door can only be locked 
when it is closed.
1
2
3
4
P72.10-2240-26 

33 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index If the vehicle has previously been locked from the 
outside, opening a door from the inside will trigger the 
alarm. When opening a door while the central locking 
system is in the:
•selective unlocking mode, only that individual door 
is unlocked. The remaining doors, the tailgate and 
fuel filler flap remain locked.
•global unlocking mode, all doors, the tailgate and 
fuel filler flap are unlocked.
Notes:
In case of a malfunction in the central locking system 
the doors can be locked and unlocked individually.
To lock, push down lock buttons and turn mechanical 
key in driver’s door lock to position 3. In addition lock 
the tailgate.To unlock, pull inside door handles or turn mechanical 
key in driver’s door lock to position 2.
Rear doors can only be opened from inside by first 
pulling up on the door lock button.
When unlocking the driver’s door with the mechanical 
key, the exterior lamps will flash and the alarm will 
sound.
To cancel the alarm, insert the electronic key in the 
steering lock or press buttonŒ or‹ on the 
electronic key. 

34 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Central locking switch
1Locking
2Unlocking
The central locking switch is located in the center 
console.
The doors and tailgate can only be locked with the 
central locking switch, if front doors are closed.
If the vehicle was previously locked with the central 
locking switch, while in the selective remote control 
mode, only the door opened from the inside is unlocked.If the vehicle was previously locked with the central 
locking switch, while in the global remote control mode, 
the complete vehicle is unlocked when a front door is 
opened from the inside.
Notes:
If the vehicle was previously locked with the remote 
control, the doors and tailgate cannot be unlocked with 
the central locking switch.
The fuel filler flap cannot be locked or unlocked with 
the central locking switch.
If the vehicle has previously been locked from the 
outside, opening a door from the inside will trigger the 
alarm. To cancel the alarm, insert the electronic key in 
the steering lock or press buttonŒ or‹ on the 
electronic key.
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.