
1 Contents
IntroductionProduct information  .......................... 7
Operator’s manual  ............................. 8
Where to find it  ................................ 13
Reporting Safety Defects  ................ 15Instruments and controlsInstruments and controls  ............... 18
Door control panel  ....................... 20
Overhead control panel  ............... 21
Dashboard ..................................... 22
Center console  .............................. 24OperationVehicle keys  ...................................... 28
Start lock-out  .................................... 32
General notes on the
central locking system  ............... 33
Central locking system  ................... 34
Radio frequency and
infrared remote control  ............... 34
KEYLESS-GO ................................. 38Opening and
closing windows and 
sliding / pop-up roof 
from outside  ................................. 45
Panic button  ................................. 47
Mechanical keys  .......................... 47
Doors ................................................. 48
Power closing assist for 
doors and trunk lid  .................... 50
Central locking switch .................... 50
Automatic central locking .............. 52
Emergency unlocking 
in case of accident  ...................... 52
Trunk ................................................. 53
Trunk lid release switch  ................ 57
Trunk lid release/close switch ...... 58
Trunk lid emergency release  .........61
Antitheft alarm system ................... 62
Tow-away alarm  ............................... 64
Easy-entry/exit feature  .................. 66
Front seat adjustment ..................... 67
Removal and installation
of front seat head restraints  ..... 72
Lumbar support  ............................... 73Multicontour backrest ..................... 73
Seat heater  ........................................ 75
Seat ventilation system  ................... 78
Rear seat head restraints  ................ 80
Power head restraints, rear  ............ 81
Power seats, rear .............................. 82
Seat belts and integrated
restraint system  .......................... 84
Seat belts  ........................................... 84
Seat belt nonusage
warning system  ........................... 85
BabySmart
TM airbag
deactivation system  .................... 91
Self-test BabySmart
TM 
without special child
seat installed  ................................. 91
Supplemental Restraint 
System (SRS)  ............................... 92
Emergency tensioning
retractor (ETR) ............................. 93
Airbags .............................................. 94
Safety guidelines for the
seat belt, emergency 
tensioning retractor
and airbag  .................................. 100 

4 Contents
Instrument cluster displayMalfunction and indicator 
lamps in the 
instrument cluster  ....................296
On-board diagnostic system  .....296
Check engine malfunction 
indicator lamp .............................296
Brake warning lamp  ..................298
Supplemental restraint
system (SRS)
indicator lamp .............................299
Fuel reserve warning .................299
ABS malfunction
indicator lamp .............................300
Electronic stability 
program (ESP) — 
warning lamp  ..............................301
Distronic (DTR) –
warning lamp  ..............................301
Seat belt nonusage
warning lamp  ..............................302Malfunction and 
indicator lamp in the
center console  ........................... 302
AIRBAG OFF indicator lamp  .... 302
Malfunction and
 warning messages in the 
multifunction display  .............. 303
DISPLAY DEFECTIVE ................ 304
BATTERY/ALTERNATOR .......... 305
ENTRANCE POSITION  .............. 306
BRAKE ASSIST ........................... 306
BRAKE LINING WEAR .............. 307
BRAKE FLUID  ............................ 307
PARKING BRAKE ....................... 308
TRUNK OPEN  ............................. 308
ELEC. STABIL. PROG.
(Electronic stability 
program) ..................................... 309
COOLANT (coolant level)  .......... 310
COOLANT 
(coolant temperature)  ................ 311LIGHTING SYSTEM .................... 312
LIGHT SENSOR ........................... 314
ACTIV E BO DY  CO NTROL 
(ABC) ............................................ 314
TIRE PRESSURE  ......................... 316
ENGINE OIL LEVEL  ................... 318
CRUISE CONTROL  ..................... 319
KEY ............................................... 319
DOOR ...........................................320
HOOD ...........................................320
TELE AID  .....................................321
OIL TEMP.
(engine oil temperature)  ...........321
CHIP-CARD (KEYLESS-GO)  ......322
SELECTOR LEVER ......................323
TELEPHONE – FUNCTION  .......323
WASHER FLUID  .........................324
AIR SPRING (AirMatic)  .............325
DISTRONIC (DTR)  ......................326 

23 Instruments and controls
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index 1Parking brake pedal, see page 242
2Hood lock release, see page 331
3Parking brake release, see page 242
4Exterior lamp switch, see page 156
5Easy-entry / exit feature, see page 66
Steering wheel adjustment, see page 105
6Headlamp washer button, see page 159
7Combination switch, see page 160
8Cruise control switch, see page 253, or
Distronic (DTR) switch, see page 2569Multifunction steering wheel, see page 120
Horn (with electronic key in starter switch 
position 1 or 2)
Airbag, see page 94
10Instrument cluster, see page 114
11Voice recognition system switch, see separate 
operating instructions
12Starter switch, see page 226
13Glove box lock, see page 194
14Glove box lid release, see page 194 

25 Instruments and controls
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index 12Ashtray, see page 201
Lighter, see page 203
13Start-/Stop button
Starter switch for KEYLESS-GO only, see page 228
14Lower storage space, see page 195
15Automatic transmission, see page 23316AIRBAG OFF indicator lamp, see page 302
17Distronic (DTR) – switch for distance notification 
function, see page 268.
18Distronic (DTR) – thumbwheel for setting distance, 
see page 268. 

26 Contents - Operation
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
OperationVehicle keys  ...................................... 28
Start lock-out  .................................... 32
General notes on the
central locking system  ............... 33
Central locking system  ................... 34
Radio frequency and
infrared remote control  ............... 34
KEYLESS-GO ................................. 38
Opening and
closing windows and 
sliding / pop-up roof 
from outside  .................................. 45
Panic button  .................................. 47
Mechanical keys  ........................... 47
Doors .................................................. 48
Power closing assist for 
doors and trunk lid ..................... 50
Central locking switch  .................... 50
Automatic central locking  .............. 52
Emergency unlocking 
in case of accident  ...................... 52
Trunk ................................................. 53
Trunk lid release switch  ................. 57Trunk lid release/close switch ...... 58
Trunk lid emergency release  .........61
Antitheft alarm system ................... 62
Tow-away alarm  ............................... 64
Easy-entry/exit feature  .................. 66
Front seat adjustment ..................... 67
Removal and installation
of front seat head restraints  ..... 72
Lumbar support  ............................... 73
Multicontour backrest  .................... 73
Seat heater ........................................ 75
Seat ventilation system  .................. 78
Rear seat head restraints  ............... 80
Power head restraints, rear  ............ 81
Power seats, rear  ............................. 82
Seat belts and integrated
restraint system  .......................... 84
Seat belts  .......................................... 84
Seat belt nonusage
warning system  .......................... 85
BabySmart
TM airbag
deactivation system  ....................91Self-test BabySmart
TM 
without special child
seat installed  ................................. 91
Supplemental Restraint 
System (SRS)  ............................... 92
Emergency tensioning
retractor (ETR) ............................. 93
Airbags .............................................. 94
Safety guidelines for the
seat belt, emergency 
tensioning retractor
and airbag  .................................. 100
Infant and child restraint
systems ....................................... 102
Steering wheel adjustment  .......... 105
Rear view mirrors  .......................... 106
Memory function  ............................ 111
Instrument cluster  ..........................114
Multifunction steering wheel, 
multifunction display  ............... 120
Trip and main odometer,
FSS, tire inf lation pressure 
monitor and engine oil level 
indicator ..................................... 124
Audio systems ............................. 125 

52 Central locking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Automatic central locking
With the automatic central locking system activated, the 
doors and trunk are locked at vehicle speeds of 
approximately 9 mph (15 km / h) or more. The fuel filler 
flap remains unlocked.
The automatic central locking function can be switched 
on or off. See page 138 for “Individual settings”.
Notes:
If doors are unlocked with the central locking switch 
after activating the automatic central locking, and 
neither door is opened, then the doors remain unlocked 
even at vehicle speeds of approximately 9 mph (15 km /
h) or more.
If a door is opened from the inside at speeds of 
approximately 9mph (15km/h) or less with the 
automatic central locking activated, the door will again 
be automatically locked at speeds of approximately 
9 mph (15 km / h) or more.Important!
When towing the vehicle, or with the vehicle on a 
dynamometer test stand, please, note the following:
With the automatic central locking activated and the 
electronic key in starter switch position 2 (vehicles with 
KEYLESS-GO: operation position, see page 228), the 
vehicle doors will lock if the left front wheel as well as 
the right rear wheel spin at vehicle speeds of 
approximately 9 mph (15 km / h) or more.
To prevent the vehicle door locks from locking, 
deactivate the automatic central locking. See page 138 
for “Individual settings”.
Emergency unlocking in case of accident
The doors unlock automatically a short time after an 
accident in which an airbag or emergency tensioning 
retractor deploys (this is intended to aid rescue and 
exit). 

70 Seats
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Important!
Prior to operating the vehicle, the driver should adjust 
the seat height for proper vision as well as fore/aft 
placement and backrest angle to insure adequate 
control, reach, operation, and comfort. The head 
restraint should also be adjusted for proper height. See 
also airbag section on page 94 for proper seat 
positioning.
In addition, also adjust the steering wheel to ensure 
adequate control, reach, operation, and comfort.
Both the inside and outside rear view mirrors should be 
adjusted for adequate rearward vision.Fasten seat belts. Infants and small children should be 
seated in a properly secured restraint system that 
complies with U.S. Federal Motor Vehicle Safety 
Standard 213 and Canadian Motor Vehicle Safety 
Stand ard 213.
All seat, head restraint, steering wheel, and rear view 
mirror adjustments as well as fastening of seat belts 
should be done before the vehicle is put into motion. 

71 Seats
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Wa r n i n g !
Children 12 years old and under must never ride in 
the front seat, 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 will result.
According to accident statistics, children are safer 
when properly restrained in the rear seating 
positions than in the front seating positions. 
Infants and small children must ride in back seats 
and 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.