Page 250 of 481
249 Controls in detail
Useful features
Cup holder in the rear seat armrest
Briefly press the front of the rear arm-
rest.
The cup holder extends automatically.
Ashtrays
Center console ashtray
1Cover
2Sliding button
Opening ashtray
Briefly press the marking on the bot-
tom of cover1.
The ashtray opens automatically.Removing ashtray insert
Secure vehicle from movement by set-
ting the parking brake. Move the gear
selector lever to positionN.
Now you have more room to take out
the insert.
Push sliding button2 to the right and
hold.
Grip and remove insert from ashtray
frame.Warning!
G
Remove front ashtray only with vehicle
standing still. Set the parking brake to
secure vehicle from movement. Move gear
selector lever to positionN. With gear selec-
tor lever in positionN, turn off the engine.
Page 252 of 481

251 Controls in detail
Useful features
The cigarette lighter is located in the cen-
ter console compartment in front of the
center armrest (
page 30).
1Cigarette lighter
Switch on the ignition (
page 38).
Push in cigarette lighter1.
The lighter will pop out automatically
when hot.
Power outletsPower outlet in rear center console1Power outlet
2Cover
Slide cover2 back.
!
The lighter socket can be used to
accommodate 12V DC electrical accessories (up
to a maximum 85 W) designed for use with the
standard “cigarette lighter” plug type. Keep in
mind, however, that connecting accessories to
the lighter socket (for example extensive con-
necting and disconnecting, or using plugs that do
not fit properly) can damage the lighter socket.
With the socket damaged, the lighter may no
longer be able to be placed in the heating
(pushed-in) position, or the lighter may pop out
too early with the lighter not hot enough.
To help avoid damaging the cigarette lighter
socket, we recommend connecting 12V DC elec-
trical accessories designed for use with a stan-
dard “cigarette lighter” plug type to the 12V
power outlets (
page 251) in your vehicle
whenever possible.
!
Make sure no fluids come into contact with
the power outlet, as this could cause a short cir-
cuit.
i
Make sure the override switch is not activat-
ed (page 89). The power outlet in the rear cen-
ter console will not function if the override
switch is activated.
Page 354 of 481
353 Practical hints
What to do if …
Lamp in center consoleProblem
Possible cause/consequence
Suggested solution
(USA only)75The indicator lamp illuminates and remains
illuminated with the weight of a typical adult
or someone larger than a small individual on
the front passenger seat.
The system is malfunctioning.
Have the system checked as soon as
possible by an authorized
Mercedes-Benz Center.
Read and observe messages in the
multifunction display and follow cor-
rective steps (
page 356).
Warning!
G
If the
75
indicator lamp
illuminates and remains illuminated with the
weight of a typical adult or someone larger
than a small individual on the front passen-
ger seat, do not have any passenger use the
front passenger seat until the system has
been repaired.
Page 364 of 481

363 Practical hints
What to do if …
Display message
Possible cause/con-
sequence
Possible solutionMonitor the 75 indicator lamp on the center console (
page 29) and
the multifunction display in the instrument cluster (
page 27) for the following:
With the seat unoccupied and the ignition turned on,
the 75 indicator lamp on the center console should illuminate and
remain illuminated, indicating that the OCS (
page 71) has deactivated the
front passenger front air bag.
the message
Front passenger airbag enabled See Operator’s Manual
or the
message
Front passenger airbag disabled See Operator’s Manual
should
not appear in the multifunction display at any time the seat is unoccupied. Wait
at least 60 seconds for the system to complete the necessary check cycles and
to make sure neither message appears in the multifunction display.
If above conditions are met, you can occupy the front passenger seat again. De-
pending on the front passenger classification sensed by the OCS (
page 71), the
75 indicator lamp will remain illuminated or go out.
If above conditions are not met, the system is not working properly. Have the sys-
tem checked as soon as possible by an authorized Mercedes-Benz Center.
Warning!
G
If the 75indicator lamp
remains out even after performing the above
corrective steps, do not have any children
12 years old and under and other small
individuals use the front passenger seat un-
til the system has been repaired.
Page 366 of 481

365 Practical hints
What to do if …
Display message
Possible cause/con-
sequence
Possible solutionMonitor the 75 indicator lamp on the center console (
page 29) and
the multifunction display in the instrument cluster (
page 26) for the following:
With the seat unoccupied and the ignition turned on,
the 75 indicator lamp on the center console should illuminate and
remain illuminated, indicating that the OCS (
page 71) has deactivated the
front passenger front air bag.
the message
Front passenger airbag enabled See Operator’s Manual
or the
message
Front passenger airbag disabled See Operator’s Manual
should
not appear in the multifunction display at any time the seat is unoccupied. Wait
at last 60 seconds for the system to complete the necessary check cycles and
to make sure neither message appears in the multifunction display.
If above conditions are met, you can occupy the front passenger seat again. De-
pending on the front passenger classification sensed by the OCS (
page 71), the
75 indicator lamp will remain illuminated or go out.
If above conditions are not met, the system is not working properly. Have the sys-
tem checked as soon as possible by an authorized Mercedes-Benz Center.
Warning!
G
If the 75 indicator lamp
remains illuminated with an adult occupant
on the front passenger seat even after per-
forming the above corrective steps,
do not have any passenger use the front
passenger seat until the system has been
repaired.
Page 398 of 481

397 Practical hints
Unlocking/locking in an emergency
Unlocking the trunk
A minimum height clearance of 5.90 ft
(1.80 m) is required to open the trunk lid.
Insert the mechanical key into the
trunk lid lock until it stops.
Turn the mechanical key1 counter-
clockwise to position3 and hold it in
this position.
Pull the handle2 and lift the trunk lid.
The trunk opens.
Turn the mechanical key back and re-
move it from the trunk lid lock.
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or SmartKey with
KEYLESS-GO*, do the following:
Close the passenger door, the rear
doors and the trunk.
Press the central locking switch in the
center console (
page 118).
Check to see whether the locking
knobs on the doors have moved down.
If necessary, push them down
manually.
Remove the mechanical key out of the
SmartKey (
page 396).
Check whether the trunk is locked.
If necessary, lock the trunk with the
mechanical key (
page 117).
Except for the driver’s door, the vehicle
should now be locked.
1
Mechanical key
2
Handle
3
Unlocking in an emergency
!
Always make sure there is sufficient over-
head clearance.
Page 460 of 481

459 Index
C
California retail buyers and lessees, impor-
tant notice for 11
Can holder see Cup holders
Capacities and recommended
fuels/lubricants 449
Cargo tie-down rings 243
Carpets, cleaning 339
Catalytic converter 281
CD player 151
Center console
Lower part 30
PASS AIR BAG OFF indicator
lamp 353
Upper part 29
Central locking
Automatic 118
Locking/unlocking from inside 118
Switching on/off (control
system) 165
Central locking switch 118
Certification label 300
Checking tire pressure electronically with
the Advanced Tire Pressure Monitoring
System* (Advanced TPMS*), (Canada
only) 309Checking tire pressure electronically with
the Tire Pressure Monitoring System
(TPMS), (USA only) 306
Children in the vehicle 84
Air bags 67
Indicator lamp, front passenger front
air bag 76
Infant and child restraint systems 84
LATCH-type child seat anchors 88
Override switch for rear passenger
compartment 89
Cigarette lighter 250
Climate control system
Air conditioning refrigerant 451
Air conditioning, Cooling 203
Air distribution 197
Air recirculation mode 200
Air volume 198
Automatic mode 196
Control panel, Rear 204
Deactivating system 196
Front defroster 199
Maximum cooling MAX COOL 200
Rear climate control 204
Residual engine heat (REST) 203Clock 27, 159
Setting time 159
Cockpit 24
Cold tire inflation pressure 323
Collapsible tire
Inflating 416
Collapsible wheel chock 395
COMAND see separate operating instruc-
tions
Combination filter with pollutant-sensitive
air-recirculation mode 202
Combination switch 55, 132
Control system 141
Functions 145
Multifunction display 141
Multifunction steering wheel 142
Resetting to factory default 155
Control system menus 144, 145
AUDIO 150
Distronic* 153
NAV* 152
Settings 154
Standard display 147
TEL* 168
Trip computer 167
Vehicle status message memory 153
Page 474 of 481

473 Index
Speedometer 27
Selecting display mode 157
SRS 64
Indicator lamp 27, 350
Messages in display 386
Standing lamps 128
Standing water, Driving through 279
Starter switch 38
Starter switch positions 38
Starting difficulties 52
Starting position 38
Starting the engine
SmartKey 51
SmartKey with KEYLESS-GO* 52
Steering wheel 28
Adjustment 44
Buttons 28
Cleaning 339
Steering wheel gearshift control one-touch
gearshifting*
Automatic transmission 179
Stolen Vehicle Recovery services 263Storage compartments 32, 244
Center armrest 244
Cup holder 247
Glove box 244
Parcel net in front passenger
footwell 246
Rear armrest 245
Rear center console 245
Ruffled storage bags 246
Under seat 245
Storing
Positions into memory (Memory
function*) 126
Tires 295
Submenus see Control system submenus
Substitute bulbs see Auxiliary bulbs
Sun visors 187
Sunroof see Power tilt/sliding sunroof
Sunshade*, rear window 188
Suspension tuning
For comfortable driving style 231
For sporty driving style 231
Symbols used in this operator’s
manual 15T
Tachometer 27, 139
Overspeed range 139
Tail lamps
Messages in display 384, 385
Replacing bulbs 409
Tar stains 333
Technical data
Air conditioning refrigerant 451
Brake fluid 451
Capacities fuels, lubricants etc. 449
Coolant 453
Dimensions 448
Electrical system 447
Engine 437
Engine oil additives 451
Engine oils 451
Fuel requirements 452
Gasoline additives 453
Premium unleaded gasoline 452
Rims and tires 438
Weights 448
Windshield washer and headlamp
cleaning system 450