Page 23 of 345
20 Instruments and controls
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Center console 1Ashtray with lighter, see page 165
2ESP control switch, see page 230
3Power window switches, front doors, see page 154
4Power window safety switch, rear doors,
seepage155
5Airbag Off indicator lamp, see page 246
6Power window switches, rear doors, see page 154
7Parktronic system deactivation switch, see page 236
8Mirror adjustment switch, see page 82
356
6432
1
7
8
P68.20-2258-27
Page 24 of 345
21 Instruments and controls
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Overhead control panel 1Interior lighting, see page 159
2Sliding / pop-up roof, see page 156
3Rear view mirror, see page 82
4Garage door opener, see page 179
5Tele Aid (emergency call system), see page 186
6Hands-free microphone for Tele Aid, telephone and
voice recognition system
5
6
Page 25 of 345

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 ............... 28
Central locking system ................... 29
Radio frequency and
infrared remote control ............... 29
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
Tailgate .............................................. 38
Antitheft alarm system ................... 41
Tow-away alarm................................ 43
Power seats front ............................. 44
Front seat head restraints .............. 50Rear seat head restraints ................ 51
Multicontour seat ............................ 53
Seat heater........................................ 54
Seat ventilation................................ 57
Seat belts and integrated
restraint system .......................... 59
Seat belts .......................................... 59
Seat belt nonusage
warning system........................... 60
BabySmart
TM airbag
deactivation system.................... 67
Self-test BabySmart
TM
without special
child seat installed ...................... 67
Supplemental restraint
system (SRS)................................ 68
Emergency tensioning
retractor (ETR) ............................ 69
Airbags.............................................. 70
Safety guidelines for the
seat belt, emergency
tensioning retractor
and airbag ..................................... 76
Infant and child
restraint systems ........................ 78Steering 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
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
Page 26 of 345

23 Contents - Operation
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Engine oil level indicator.............. 117
Engine oil consumption ................ 118
Exterior lamp switch ...................... 119
Night security Illumination ......... 120
Headlamp cleaning system .......... 121
Combination switch....................... 122
Rear window wiper / washer ....... 124
Hazard warning flasher
switch.......................................... 125
Automatic climate control ............ 126
Display and controls .................. 128
Basic setting ................................ 129
Special settings .......................... 129
Defogging windows .................... 129
Defrosting .................................... 129
Rear window defroster .............. 130
Air distribution ........................... 130
Air volume ................................... 130
Air recirculation ......................... 131
Dust filter .................................... 131Activated charcoal filter ............132
Residual engine
heat utilization ............................132
Front center console
compartment ventilation ...........133
Rear passenger compartment
adjustable air outlet ...................134
Audio and telephone,
operation ................................... 135
Power windows .............................. 154
Sliding / pop-up roof..................... 156
Interior lighting ............................. 159
Entrance lamps,
exit lamps in doors................... 159
Sun visors ....................................... 160
Illuminated vanity mirrors .......... 160
Interior ............................................. 161
Armrest, rear bench ....................... 161
Cup holder in rear
bench armrest ............................ 161Glove box ......................................... 162
Cup holder and coin holder
in glove box lid ........................... 162
Storage compartment
above ashtray in
center console ........................... 163
Storage compartments in
center console ........................... 163
Cup holder in
center console ........................... 164
Ashtrays .......................................... 165
Lighter ............................................. 167
Split rear bench seat ..................... 168
Rear-facing bench seat .................. 174
Loading instructions ..................... 176
Cargo tie-down rings ..................... 177
Parcel net in front
passenger footwell .................... 178
Cellular telephone ......................... 178
Garage door opener ....................... 179
Page 27 of 345
24 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Ve h i c l e k ey s
Included with your vehicle are:
•2 electronic main keys with integrated radio
frequency and infrared remote controls plus
removable mechanical key.
•1 electronic reserve key without remote control
functions, plus removable mechanical key.
The locking tabs for the mechanical key portion of the
two electronic main 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
serious personal injury.
Page 28 of 345

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,
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 main key.
The infrared receivers are located in the front door
handles.
Notes:
Remove the mechanical key from the electronic main
key when using valet parking service. To prevent access
to storage compartments lock them separately and
retain the mechanical key.
See page 38 for separate locking of tailgate and
page 162 for locking of glove box.
P80.35-2030-26
1
3
4
2
Page 29 of 345
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,
tailgate, 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.
P80.35-2036-26
1
Page 30 of 345
27 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 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.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).