
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  .................................... 31
General notes on the 
central locking system  ............... 32
Central locking system  ................... 33
Radio frequency and 
infrared remote control  ............... 33
KEYLESS-GO ................................. 36Opening and closing windows 
and sliding / pop-up roof 
from outside  ................................. 43
Panic button  ................................. 45
Mechanical keys  .......................... 45
Doors ................................................. 46
Power closing assist for 
doors and trunk lid  .................... 48
Central locking switch .................... 48
Automatic central locking .............. 50
Emergency unlocking in 
case of accident  .......................... 50
Trunk ..................................................51
Trunk lamp ....................................... 54
Trunk lid release switch  ................ 55
Trunk lid release/close switch  ...... 56
Trunk lid emergency release  ........ 59
Antitheft alarm system ................... 60
Tow-away alarm  ................................ 61
Easy-entry/exit feature  .................. 63
Front seat adjustment ..................... 64
Removal and installation of 
front seat head restraints .......... 68
Lumbar support  ............................... 69Multicontour backrest ..................... 69
Seat heater  ........................................ 71
Seat ventilation system  ................... 74
Rear seat head restraints ................ 76
Power head restraints, rear  ............ 77
Power seats, rear .............................. 78
Power seats, setting passenger 
seat position from rear ............... 80
Seat belts and integrated 
restraint system  .......................... 81
Seat belts ........................................... 81
Seat belt nonusage 
warning system  ........................... 82
BabySmart
TM airbag 
deactivation system  .................... 88
Self-test BabySmart
TM without 
special child seat installed  ......... 88
Supplemental Restraint 
System (SRS)  ............................... 89
Emergency tensioning 
retractor (ETR) ............................. 90
Airbags .............................................. 91 

2 Contents
Safety guidelines for the 
seat belt, emergency 
tensioning retractor 
and airbag  .................................... 97
Infant and child 
restraint systems ......................... 99
Steering wheel adjustment  .......... 102
Rear view mirrors  .......................... 103
Memory function  ........................... 108
Key dependent 
memory settings  ........................ 111
Instrument cluster  ......................... 112
Multifunction steering wheel, 
multifunction display  ................118
Trip and main odometer 
and sub menu  ............................ 122
Audio systems ............................. 124
Radio ............................................ 124
CD player  ..................................... 125
Cassette player  ........................... 126
Telephone ........................................ 127
Telephone book  .......................... 127
Redialing ..................................... 129
Incoming call  .............................. 131Navigation system  ..........................132
Distronic (DTR)  ...............................133
Trip computer  .................................134
Malfunction / warning 
message memory  ......................136
Individual settings  .........................138
Setting the audio volume  ............. 148
Flexible service system 
(FSS) ........................................... 149
Tire inflation pressure 
monitor ........................................152
Engine oil level indicator  ..............156
Engine oil consumption  ................157
Exterior lamp switch ......................158
Night security illumination  ..........160
Headlamp cleaning system  ........... 161
Combination switch  .......................162
Hazard warning flasher 
switch ..........................................165
Automatic climate control .............166
Display and controls  ..................168
Automatic maximum 
cooling ......................................... 170
Basic setting  ................................ 171Special Settings  .......................... 172
Activated charcoal filter  ............ 175
Economy mode  ........................... 176
Residual engine 
heat utilization  ........................... 176
Switching the automatic 
climate control on and off ......... 177
Front center console storage 
compartment ventilation  .......... 178
Front center console storage 
compartment ventilation  .......... 178
Rear passenger compartment 
climate control  .......................... 180
Automatic maximum 
cooling ......................................... 181
Power windows ............................... 184
Sliding/pop-up roof  ....................... 187
Interior lighting  ............................. 190
Rear window sunshade  ................. 193
Rear door window sunshade ........ 194
Sun visors  ....................................... 194
Vanity mirrors  ................................ 195
Interior ............................................ 196 

26 Contents – Operation
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
OperationVehicle keys  ...................................... 28
Start lock-out  .................................... 31
General notes on the 
central locking system  ............... 32
Central locking system  ................... 33
Radio frequency and 
infrared remote control  ............... 33
KEYLESS-GO ................................. 36
Opening and closing windows 
and sliding / pop-up roof 
from outside  .................................. 43
Panic button  .................................. 45
Mechanical keys  ........................... 45
Doors .................................................. 46
Power closing assist for 
doors and trunk lid  ..................... 48
Central locking switch  .................... 48
Automatic central locking  .............. 50
Emergency unlocking in 
case of accident  ........................... 50
Trunk ................................................. 51
Trunk lamp  ....................................... 54Trunk lid release switch  ................ 55
Trunk lid release/close switch  ...... 56
Trunk lid emergency release  ........ 59
Antitheft alarm system ................... 60
Tow-away alarm  ................................ 61
Easy-entry/exit feature  .................. 63
Front seat adjustment ..................... 64
Removal and installation of 
front seat head restraints .......... 68
Lumbar support  ............................... 69
Multicontour backrest  .................... 69
Seat heater ......................................... 71
Seat ventilation system  ................... 74
Rear seat head restraints  ................ 76
Power head restraints, rear  ........... 77
Power seats, rear  ............................. 78
Power seats, setting passenger 
seat position from rear  .............. 80
Seat belts and integrated 
restraint system  ...........................81
Seat belts  ...........................................81
Seat belt nonusage 
warning system  .......................... 82BabySmart
TM airbag 
deactivation system  .................... 88
Self-test BabySmart
TM without 
special child seat installed  ......... 88
Supplemental Restraint 
System (SRS)  ............................... 89
Emergency tensioning 
retractor (ETR) ............................. 90
Airbags .............................................. 91
Safety guidelines for the 
seat belt, emergency 
tensioning retractor 
and airbag  .................................... 97
Infant and child 
restraint systems ......................... 99
Steering wheel adjustment  .......... 102
Rear view mirrors  .......................... 103
Memory function  ........................... 108
Key dependent 
memory settings  ........................ 111
Instrument cluster  ..........................112
Multifunction steering wheel, 
multifunction display  ................118 

27 Contents – Operation
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Trip and main odometer 
and sub menu  ............................ 122
Audio systems ............................. 124
Radio ............................................ 124
CD player  ..................................... 125
Cassette player  ........................... 126
Telephone ........................................ 127
Telephone book  .......................... 127
Redialing ..................................... 129
Incoming call  .............................. 131
Navigation system .......................... 132
Distronic (DTR) ............................... 133
Trip computer  ................................. 134
Malfunction / warning 
message memory  ...................... 136
Individual settings ......................... 138
Setting the audio volume .............. 148
Flexible service system 
(FSS) ............................................ 149
Tire inflation pressure 
monitor ....................................... 152
Engine oil level indicator .............. 156
Engine oil consumption  ................ 157Exterior lamp switch ......................158
Night security illumination  ..........160
Headlamp cleaning system  ........... 161
Combination switch  .......................162
Hazard warning flasher 
switch ..........................................165
Automatic climate control .............166
Display and controls  ..................168
Automatic maximum 
cooling ......................................... 170
Basic setting  ................................ 171
Special Settings  ......................... 172
Activated charcoal filter  ........... 175
Economy mode  ............................ 176
Residual engine 
heat utilization  ............................ 176
Switching the automatic 
climate control on and off  ........ 177
Front center console storage 
compartment ventilation  .......... 178
Front center console storage 
compartment ventilation  .......... 178
Rear passenger compartment 
climate control  ...........................180Automatic maximum 
cooling ......................................... 181
Power windows ............................... 184
Sliding/pop-up roof  ....................... 187
Interior lighting  ............................. 190
Rear window sunshade  ................. 193
Rear door window sunshade ........ 194
Sun visors  ....................................... 194
Vanity mirrors  ................................ 195
Interior ............................................ 196
Storage compartments 
and armrests  .............................. 196
Glove box  ..................................... 197
Cup holder  ......................................202
Ashtrays ..........................................204
Lighter .............................................206
Parcel net in front 
passenger footwell  ....................208
Parcel net in trunk  ........................208
Telephone, general  ........................209
Garage door opener  ....................... 210
Infrared reflecting 
windshield ................................. 214 

28 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Vehicle keys and KEYLESS-GO-cards (optional)
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 each individual key.
•Vehicles with KEYLESS-GO:
2 KEYLESS-GO-cards without removable mechanical 
key.Vehicles with KEYLESS-GO:
See page 42 on how to use the electronic key together 
with the KEYLESS-GO-card.
Important!
In the case of the loss of a KEYLESS-GO-card, electronic 
keys or mechanical keys, please, contact an authorized 
Mercedes-Benz Center or call 1-800-FOR-MERCedes (in 
the USA), or 1-800-387-0100 (in Canada) as soon as 
possible to have the keys or KEYLESS-GO-card 
deactivated.
Wa r n i n g !
When leaving the vehicle always remove the 
electronic key from the starter switch, 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 
serious personal injury. 

29 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, 
trunk, and glove box lock.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.
Note:
Remove the mechanical key from the electronic key 
when using valet parking service. To prevent access to 
trunk or storage compartments lock them separately 
and retain the mechanical key.
See page 51 for separate locking of trunk and page 197 
for locking of glove box.
P80.35-2031-26
1
3
4
2 

33 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 371 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 and switching on the driver’s seat ventilation 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 Œor ‹, seepage43.
With vehicle centrally locked, the trunk can also be 
opened by using the remote control.
If the electronic key is inserted in starter switch, 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 371 for changing 
batteries if it does not light up briefly)
3PANIC button
4Transmitter eye
5Locking tab for mechanical key
P80.35-2032-26
24
3
5
1 

36 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Opening the trunk
The trunk lid will swing open automatically. You should 
always make sure there is sufficient clearance.
A minimum height clearance of 6 ft. (1.85 m) is 
required to open the trunk lid.
Press transmit buttonŠ until trunk lid is open.
Important!
Do not place remote control in trunk since trunk is 
locked when the lid is closed if the vehicle is centrally 
locked.
Notes:
If the trunk was previously locked separately, it will 
remain locked, see page 51.
Vehicles with optional remote trunk lid
opening / closing system, see page 56:
The switch operated opening/closing procedure can be 
immediately halted by pressing buttonŠ on the 
electronic key.KEYLESS-GO
Important!
For the KEYLESS-GO-system to function properly, the 
operator should observe the following:
•The driver should carry the KEYLESS-GO-card with 
him / her.
•To avoid radio transmission interference, never store 
the KEYLESS-GO-card together with other electronic 
items (e.g. cellular telephones, other KEYLESS-GO-
cards) or metallic objects (e.g. coins, metal foil).
•To lock or unlock the vehicle, the card must be 
recognized by the system as being located outside 
the vehicle. The card must be in close proximity to a 
door or the trunk lid (approx. 3 ft. [1 m]). To activate 
the start / stop button function, the KEYLESS-GO-
card must be recognized by the system as being 
located inside the vehicle.
•If the KEYLESS-GO-card is positioned farther away 
from the vehicle (e.g. inside clothing or a briefcase) 
and can no longer be recognized by the system, the 
vehicle cannot be locked or the engine started via 
the KEYLESS-GO-system.