Proximity keysee Key, SmartKey
PSI (air pressure unit) ....................... 240
R
Radio .................................................. 136
Satellite radio ................................ 140
Selecting stations ..........................115
Radio transmitters ............................ 249
Rain sensor see Intermittent wiping
Rear axle oil ....................................... 334
Rear center console ashtray see Ashtrays
Rear center seat belt
Unblocking ....................................... 50
Rear doors
Child safety locks ............................ 58
Rear door window
Override switch ................................ 58
Rear fog lamp
see Fog lamps
Rear lamps
see Tail lamps
Rear seat head restraints
see Head restraints
Rear view camera .............................. 174
Cleaning the camera lens ..............254
Rear window defroster ..................... 184
Rear window wiper/washer ............... 94
Recommended tire inflation
pressure ..................................... 219, 240
Refrigerant, air conditioning ............ 336
Refueling ............................................ 212
Regular checks .................................. 213
Reminder, Seat belt see Seat belts, Telltale
Remote control
see Key, SmartKey
Remote door lock (Tele Aid) ............. 205
Remote door unlock (Tele Aid) ......... 204
Replacing
Key .................................................. 70
Replacing bulbs ................................. 303
Reporting safety defects .................... 23
Research Octane Number see RON
Reserve fuel
Messages in the multifunction
display ........................................... 282
Warning lamp ................................. 294
Restraint systems
see Occupant safety
Rims ........................................... 241, 331
Roadside Assistance ................... 20, 203
Roller sunblinds ................................. 184
RON (Research Octane Number) ..... 337
Roof rack ............................................ 188
Rubber parts, cleaning ...................... 256
S
Safety
Driving safety systems .....................59
Occupant safety ............................... 36
Reporting defects ............................ 23
Safety belts
see Seat belts
Satellite radio .................................... 140
Seat belt force limiter ......................... 51
Seat belts ............................................. 47
Children in the vehicle .....................53
Cleaning ......................................... 256
Fastening ......................................... 49
Height adjustment ...........................50
Proper use of ................................... 48
Rear center seat .............................. 50
Safety guidelines ............................. 39
Safety notes ..................................... 47
Telltale ........................................... 292
Seat heating ......................................... 81
Seating capacity ................................ 228
Seats ..................................................... 78
Adjusting ......................................... 33
Adjustment ...................................... 78
Easy-entry/exit feature ....................83
Heating ............................................ 81
Memory function .............................. 86
Rear seat bench ............................. 189
Securing cargo
Cargo tie-down rings ...................... 188
Selective setting
see Key, SmartKey
Selector lever
see Gear selector lever
14IndexX204_AKB; 3; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T19:16:58+02:00 - Seite 14
Center console
Lower part
FunctionPage:Ashtray196Cigarette lighter197;Gear selector lever for
automatic transmission103
=Cup holder195?Front armrest storage
compartments192
AAudio controller129COMAND controller (see
separate operating
instructions)
BProgram mode selector
switch for automatic
transmission106
Upper part FunctionPage:Hazard warning flasher
switch90
;Alarm system indicator
lamp63
=Front passenger front air
bag off indicator lamp, USA
only
42,
298
Front passenger front air
bag off indicator lamp,
Canada only
45,
297
?Electronic Stability
Program (ESP®) switch63
AAudio system125orCOMAND system, see
separate operating
instructions
BSeat heating, front
passenger side81
CParktronic system
deactivation switch174
Center console31At a glanceX204_AKB; 3; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T19:16:58+02:00 - Seite 31Z
FunctionPageDDual-zone automatic
climate control177
Rear window defroster184ESeat heating, driver’s side81Overhead control panelFunctionPage:Rear interior lighting on/off92;Interior lighting control92=Right reading lamp on/off92?Roof panel switch185AInformation button (Tele
Aid system)203
BSOS button (Tele Aid
system)202
CInterior rear view mirror84DIntegrated electronic
compass199
EGarage door opener 205FHands-free microphone for
Tele Aid (emergency call
system), telephone and
Voice Control System3
3The Voice Control System is only available with the COMAND system. Refer to separate operatinginstructions.
32Overhead control panelAt a glance
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of the head at eye level. This will reduce the
potential for injury to the head and neck in the
event of an accident or similar situation.
With a rear seat occupied, make sure to move
the respective head restraint up from the
lowest non-use position and have the
occupant adjust the head restraint properly.
Do not drive the vehicle without the seat head
restraints installed when the rear seats are
occupied. Head restraints are intended to
help reduce injuries during an accident.
Rear seat head restraint height
adjustment
XRaising: Pull head restraint upward to the
desired position.
XLowering: Press release button : and
push down on head restraint.
Rear seat head restraint fore and aft
adjustment
XAdjust the head restraint to the desired
position by pushing or pulling on the upper
edge of the head restraint cushion.
Rear seat head restraints, removing
and installing
XRemoving: Pull the head restraint to its
uppermost position.
XPress release button : and pull out the
head restraint.
XInstalling: Insert the head restraint into
openings on the seat backrest.
XPush the head restraint down until it
audibly engages.
XPress release button : and adjust the
head restraint to the desired position.
Seat heating
The red indicator lamps in seat heating
switch : come on to show which heating
level you have selected.
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The seat heating switches from level 3 (high)
to level 2 after approximately 5 minutes.
The seat heating switches from level 2 to level
1 (low) after approximately 10 minutes.
After approximately 20 minutes in level 1, the
seat heating switches off automatically.
XSwitch on the ignition.XSwitching on: Press seat heating
switch :.
Three red indicator lamps in seat heating
switch : come on.
XPress seat heating switch : repeatedly
until the desired seat heating level is set.
XSwitching off: Press seat heating
switch : repeatedly until all indicator
lamps go out.
If there is insufficient voltage the seat heating
switches off automatically.
The seat heating will switch back on again
automatically as soon as sufficient voltage is
available.
Multifunction steering wheel
Safety notes
GWarning!
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving, or
driving without the steering wheel adjustment
feature locked could cause the driver to lose
control of the vehicle.
The electrical steering wheel adjustment
feature can be operated at any time.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child’s unsupervised access to a
vehicle could result in an accident and/or
serious personal injury.
Make sure
Ryou can reach the steering wheel with your
arms slightly bent at the elbows
Ryou can move your legs freely
Rall displays (including malfunction and
indicator lamps) on the instrument cluster
are clearly visible
Steering wheel adjustment, manual
XUnlocking: Pull release handle : out to
its stop limit.
XMove steering wheel to the desired
position.
XLocking: Push release handle : all the
way up until it engages.
XMake sure the steering wheel is securely
locked by trying to move it up and down as
well as in and out before driving off.
Steering wheel adjustment, electrical
82Multifunction steering wheelControls in detail
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FunctionRecommendation/NotesCAir recirculationiOnly use this function for a short time,
e.g. in a tunnel. Otherwise, the windows
can fog up due to lack of fresh air.( Y page 183)DRear window
defroster( Y page 184)EIncreasing air
volume( Y page 182)FDecreasing air
volume( Y page 182)GDisplayHAir distribution(Y page 181)IAir distribution and
air volume
(automatic mode)i Switch on the automatic mode. The
indicator lamp in button à comes on.(Y page 179)Notes on climate control system
The climate control system is operational
whenever the engine is running. You can
operate the climate control system in either
the automatic or manual mode. The system
cools or heats the interior depending on the
selected interior temperature.
It can only function optimally when you are
driving with the windows and the tilt/sliding
panel closed.
Nearly all dust particles, pollutants and odors
are filtered out before outside air enters the
passenger compartment through the air
distribution system.GWarning!
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled replacement interval. A clogged
filter will reduce the air volume to the interior
and the windows could fog up, impairing
visibility and endangering you and others.
Have a clogged filter replaced as soon as
possible at an authorized Mercedes-Benz
Center.
The air conditioning will not engage (no
cooling) if the A/C mode ( Y page 179) is
deactivated.GWarning!
Follow the recommended settings for heating
and cooling given on the following pages.
Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
XKeep the air intake grille in front of the
windshield free of snow and debris.
i If the vehicle interior is hot, ventilate the
interior before driving off, see “Summer
opening feature” ( Y page 97). The climate
control will then adjust the interior
temperature to the set value much faster.
178Climate control systemControls in detail
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Side air vents
Example illustration driver’s side
:Left side defroster air vent, fixed;Left side air vent, adjustable=Thumbwheel for air volume control for
adjustable left side air vent
XOpening/closing: Turn thumbwheel =
upward or downward.
Ventilated glove box
The glove box can be ventilated, for instance
to cool its contents, when the climate control
system is activated. The level of airflow to the
glove box depends on the airflow and air
distribution settings. The temperature of the
air is approximately the same as that of the
air flowing from the center air vents.
! Close the glove box air vent when heating
the vehicle interior. Activate the air
conditioning (cooling function) when the
outside temperature is high. Otherwise,
temperature-sensitive items stored in the
glove box could be damaged.
:Thumbwheel;Air ventXOpening/closing: Turn thumbwheel :
clockwise or counterclockwise.
Rear center console air vents
:Thumbwheel for air volume control for
rear center air vents
;Right rear center air vent, adjustable=Left rear center air vent, adjustable
Adjusting air distribution
The symbols shown in display G
(Y page 177) on the climate control panel
represent the following functions:
Climate control system181Controls in detailX204_AKB; 3; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T19:16:58+02:00 - Seite 181Z
SymbolFunction¯Directs air through the
defroster air vents to the
windshield and front door
windowsPDirects air through the center
and side air ventsODirects air to the footwellsNDirects air through the center
and side air vents and to the
footwells_Directs air into the entire
vehicle interior (Canada only)bDirects air through the center,
side and defroster air vents to
the windshield and front door
windows (Canada only)aDirects air through the
defroster air vents to the
windshield and front door
windows and to the footwellsXPress button _ repeatedly until you
have select the desired setting and the
corresponding symbol is shown in display
G .
Adjusting air volume
XDecreasing/increasing: Press button
I or K .
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
front door windows.
i Keep this setting selected only until the
windshield or the front door windows are
clear again.XActivating: Press button ¬.
The indicator lamp in the button comes on.
The climate control switches to the following
functions automatically:
R cooling on to dehumidify
R most efficient blower speed and heating
power, depending on outside temperature
R air flows onto the windshield and the front
door windows
R the air recirculation mode is switched off
i You can adjust the air volume when the
front defroster is switched on.
XDeactivating: Press button ¬ again.
The indicator lamp in the button goes out.
The previous settings are once again in
effect. The cooling remains switched on.
The air recirculation remains switched off.
or
XPress button Ã.
The indicator lamp in button ¬ goes out.
Air volume and air distribution are adjusted
automatically.
i To deactivate defrosting, you can also
press button ^ or turn temperature
controls.
Windshield fogged on the outside
XSwitch the windshield wipers on
( Y page 93).
If the automatic mode of the climate control
is switched off:
XPress button _ repeatedly until one of
the following symbols appears in display
G (Y page 177) P or O .
Maximum cooling MAX COOL
MAX COOL is only available in U.S. vehicles.
182Climate control systemControls in detail
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