
XTurn temperature controls 006E or 0073
( Y page 148) clockwise or
counterclockwise.
The indicator lamp in button 0061 goes out.
or
XPress button 005A.
The indicator lamp in button 005A comes
on. The air volume and air distribution are
adjusted automatically.
or
XPress button 0066.
The indicator lamp in button 0061 goes out.
Air conditioning
The air conditioning is operational while the
engine is running and cools the interior air to
the temperature set by the operator. In
addition, the air conditioning dehumidifies
the interior air and helps prevent window
fogging.
GWarning!
If you deactivate the air conditioning, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
i Condensated water may drip out from
underneath the vehicle. This is normal and
not an indication of a malfunction.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs which
are harmful to the ozone layer.
Deactivating
It is possible to deactivate the air
conditioning. The interior air will then no
longer be cooled or dehumidified.
XPress button 0058.
The indicator lamp in the button goes out.
The cooling function switches off after a
short delay.Activating
Moist air can fog up the windows. You can
dehumidify the interior air with the air
conditioning.
XPress button 0058.
The indicator lamp in the button comes on.
Automatic mode
Air distribution and air volume can be
adjusted automatically by the climate control
system. You can also adjust the settings for
air distribution and air volume manually.
When operating the climate control system in
automatic mode, the interior air temperature,
air volume and air distribution are adjusted
automatically.
In automatic mode, cooling with
dehumidification is switched on. This function
can be switched off if necessary.
GWarning!
If you deactivate the air conditioning, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
XSet the desired temperature
( Y page 151).XActivating: Press button 005A.
The indicator lamp in the button comes on.
The air volume and air distribution are
adjusted automatically.XDeactivating: Press button 005A.
The indicator lamp in the button goes out.
The blower will run at speed setting 3. The
air flows through the center and side air
vents.
or
XPress one button 0056.
The indicator lamp in button 005A goes out.
The climate control settings for the
respective side of the passenger
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Adjusting air distribution
The air distribution can be adjusted
separately on each side of the passenger
compartment with buttons 0056.
The symbols on the controls represent the
following functions:SymbolFunction0063Directs air through the
defroster air vents to the
windshield and door windows009EDirects air through the center
and side air vents009DDirects air to the footwells009CDirects air through the center,
side air vents and to the
footwells0088Directs air through the
defroster air vents to the
windshield, door windows and
footwellsXPress one button 0056 until the desired
setting for the respective side of the
passenger compartment appears in air
distribution display 0046 or 0086 (Y page 148).
Adjusting air volume
XDecreasing/increasing: Turn air volume
control 0071 (Y page 148) clockwise or
counterclockwise.
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
door windows.
i Keep this setting selected only until the
windshield or the door windows are clear
again.XActivating: Press button 0066.
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 door
windows
R the air recirculation mode is switched off
XDeactivating: Press button 0066 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 005A.
The indicator lamp in button 0066 goes out.
Air volume and air distribution are adjusted
automatically.
or
XTurn temperature controls 006E and 0073
( Y page 148) clockwise or
counterclockwise.
or
XTurn air volume control 0071 (Y page 148)
clockwise or counterclockwise.
Windshield fogged on the outside
XSwitch the windshield wipers on
( Y page 95).XPress one button 0056 until the setting
009E , 009C or 009D appears in air
distribution display 0046 or 0086 (Y page 148).
Maximum cooling MAX COOL
MAX COOL is only available in U.S. vehicles.
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MAX COOL is only operational when the
engine is running.
If the air distribution controls as well as the
air volume control are set to \000Z and there
is a high need for cooling, MAX COOL is
activated. “MAX COOL” appears in
temperature controls \000n and \000s
(Y page 148).
This provides the fastest possible cooling of
the vehicle interior (when retractable hardtop
is closed).
Automatic climate control panel with MAX COOLactivated
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e. g. before driving through
a tunnel). This setting cuts off the intake of
outside air and recirculates the air in the
passenger compartment.
GWarning!
Fogged windows impair visibility,
endangering you and others. If the windows
begin to fog on the inside, switching off the
air recirculation mode immediately should
clear interior window fogging. If interior
window fogging persists, make sure the air
conditioning is activated, or press button
\000f.
XActivating: Press button \000t.
The indicator lamp in the button comes on.
iThe air recirculation mode is activated
automatically at high outside
temperatures.
The indicator lamp in button \000t is not lit
when the air recirculation mode is switched
on automatically.
A quantity of outside air is added after
approximately 30 minutes.
XDeactivating: Press button \000t again.
The indicator lamp in the button goes out.
iThe manually selected air recirculation
mode is deactivated automatically:
Rafter 5 minutes if the outside
temperature is below approximately
41‡ (5†)
Rafter 5 minutes if the air conditioning is
turned off
Rafter 30 minutes if the outside
temperature is above approximately
41‡ (5†)
Residual heat and ventilation
With the engine turned off, it is possible to
continue to heat or ventilate the interior for
up to 30 minutes. This feature makes use of
the residual heat produced by the engine.
iIf you switch on the residual heat function
when outside temperatures are high, only
the ventilation will be switched on.
iHow long the system will provide heating
depends on the coolant temperature and
the selected temperature. The blower will
run at low speed regardless of the air
distribution control setting.
XActivating: Switch off the ignition.XPress button \000X.
The indicator lamp in the button comes on.
XDeactivating: Press button \000X.
The indicator lamp in the button goes out.
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The residual heat is deactivated
automatically:
R when the ignition is switched on
R after approximately 30 minutes
R if the battery voltage drops
Rear window defroster
GWarning!
Any accumulation of snow and ice should be
removed from the rear window before driving.
Visibility could otherwise be impaired,
endangering you and others.
The rear window defroster uses a large
amount of power. To keep the battery drain
to a minimum, switch off the defroster as
soon as the rear window is clear. The
defroster is switched off automatically after
some time of operation depending on the
outside temperature.
XSwitch on the ignition.XSwitching on: Press button 006E.
The indicator lamp in the button comes on.
! The rear window defroster cannot be
switched on when the retractable hardtop
is open. The indicator lamp will start
flashing if the hardtop is open.
R Close the retractable hardtop.
The rear window defroster can then be
switched on.
XSwitching off: Press button 006E again.
The rear window defroster switches off when
the battery voltage is too low. The indicator
lamp in button 006E flashes. Too many
electrical consumers may be operating
simultaneously.
XSwitch off consumers that are currently not
needed if required.Retractable hardtop
Safety notes
For safety reasons, the retractable hardtop
can only be opened and closed when the
vehicle is standing still.
GObserve Safety notes, see page 51.GWarning!
To prevent possible accidents, only drive the
vehicle with the retractable hardtop either
completely closed and locked, or fully lowered
into its storage compartment.
If the retractable hardtop does not completely
open or close, the roof hydraulics will lose
pressure and the retractable hardtop is
lowered
R after approximately 7 minutes when the
ignition is switched on
R after approximately 15 seconds when the
ignition is switched off
Shortly before the retractable hardtop is
lowered, a warning will sound. In the
multifunction display you will see 0059 and
the message Retractable Roof Lowering .
Properly lock the retractable hardtop before
continuing to drive. Otherwise, the unlocked
hardtop could open while the vehicle is in
motion and cause you to lose control of the
vehicle. You or others could be injured as a
result.
GWarning!
Before operating the retractable hardtop,
make sure there is no danger of anyone being
injured by the moving parts (retractable
hardtop, roof frame, and trunk lid).
Hands must never be placed near the roof
frame, upper windshield area, hardtop, shelf
behind roll bars, or trunk lid while the
retractable hardtop is being raised or
lowered. Serious personal injury may occur.
If potential danger exists, release the
retractable hardtop switch or button 0036 or
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XClose the luggage cover (Y page 158).XClose the trunk lid.XAim the transmitter eye at an outside door
handle.
The SmartKey must be in close proximity to
the outside door handle.
Opening (Summer opening feature)
i Make sure the retractable hardtop is dry
before you open it. Otherwise water may
enter the trunk interior.
XPress and hold button 0036 until the
retractable hardtop is completely open.
The seat ventilation for the driver’s seat
switches on and the rear side windows also
open.XRelease button 0036 to interrupt the
opening procedure.XPress and hold button 0036 once more to
open the door windows.
Closing (Convenience closing feature)
XPress and hold button 0037 until the
retractable hardtop is completely closed.
All currently open windows also close.XRelease button 0037 to interrupt the
closing procedure.
Locking
GObserve Safety notes, see page 155.
The retractable hardtop is not fully closed and
locked or not fully opened and locked if
R the message 0059 Retractable Roof
In Operation appears in the
multifunction display
R a warning sounds for 10 seconds when
driving off or while driving
If the retractable hardtop is not properly
locked, lock it as follows.
Unlocked status noticed when stoppedXSwitch on the ignition.XTo lock the retractable hardtop in its fully
closed position, press down on the
retractable hardtop switch ( Y page 156)
until the retractable hardtop is fully closed.
or
XTo lock the retractable hardtop in its fully
opened position, pull up on the retractable
hardtop switch ( Y page 156) until the
retractable hardtop is fully opened.
Unlocked status noticed while driving
GWarning!
Stop the vehicle in a safe location or as soon
as it is safe to do so and lock the retractable
hardtop before continuing to drive. You could
otherwise endanger yourself and others.
XStop the vehicle in a safe location or as
soon as it is safe to do so.XLeave the ignition switched on.XTo lock the retractable hardtop in its fully
closed position, press down on the
retractable hardtop switch ( Y page 156)
until the retractable hardtop is fully closed.
or
XTo lock the retractable hardtop in its fully
opened position, pull up on the retractable
hardtop switch ( Y page 156) until the
retractable hardtop is fully opened.
Wind screen
GWarning!
The wind screen can restrict the driver’s
vision to the rear of the vehicle. To prevent a
possible accident when visibility is limited
(e.g. in darkness), the upper part of the wind
screen should be folded back.
The wind screen deflects drafts away from the
driver and passenger when the retractable
hardtop is lowered.
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Door storage compartmentsGWarning!
Keep the door storage compartments closed
while vehicle is in motion. Failure to do so may
cause the seat belt to catch at the rear and
prevent proper positioning of the seat belt.
\000FRelease button\000GStorage compartment lidXOpening: Press release button \000F.
Rear storage compartments
GWarning!
To help avoid personal injury during a collision
or sudden maneuver, exercise care when
storing objects in the vehicle. Put luggage or
cargo in the trunk if possible.
Do not pile luggage or cargo higher than the
seat backrests.
Keep compartment lids closed. This will help
to prevent stored objects from being thrown
about and injuring vehicle occupants during
Rbraking
Rvehicle maneuvers
Ran accident
Driver’s side rear storage compartment
\000FRelease button\000GStorage compartment lidXOpening: Press release button \000F.
Luggage compartment in the rear
GWarning!
Secure all pieces of luggage in the rear with
the luggage straps. Unsecured pieces of
luggage can otherwise cause injury during a
braking maneuver and can increase the risk
of injury in an accident.
Never allow anyone to ride in the rear.
The luggage straps can only secure light
luggage items. Carry heavy pieces of luggage
in the trunk.
The rear compartment area is not designed or
intended to accommodate occupants. Severe
personal injury or death may be the result in
an accident.
GWarning!
The shelf below the rear window should not
be used to carry objects. This will avoid such
objects from being thrown about and injuring
vehicle occupants during an accident or
sudden maneuver.
The trunk is the preferred place to carry
objects.
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Always use winter tires at temperatures
below 45‡ (7†) and whenever wintry road
conditions prevail. Not all M+S rated tires
provide special winter performance. Make
sure the tires you use show the mountain/
snowflake 004Dmarking on the tire sidewall.
These tires meet specific snow traction
performance requirements of the Rubber
Manufacturers Association (RMA) and the
Rubber Association of Canada (RAC) and
have been designed specifically for use in
snow conditions. Use of winter tires is the
only way to achieve the maximum
effectiveness of your vehicle’s driving safety
systems such as the ABS and the ESP ®
in
winter operation.
For safe handling, make sure all mounted
winter tires are of the same make and have
the same tread design.
For information on winter tires for your
vehicle model, see the “Technical data”
section ( Y page 299).
Always observe the speed rating of the winter
tires installed on your vehicle.
After installing winter tires:XCheck the tire inflation pressure and adjust
it if necessary ( Y page 189).XRestart the Advanced Tire Pressure
Monitoring System ( Y page 190).
Snow chains
! When driving with snow chains, always
select setting 1 of the vehicle level control.
Other settings may result in damage to your
vehicle.
! Some tire sizes do not leave adequate
clearance for snow chains. To help avoid
serious damage to your vehicle or tires,
make sure the use of snow chains is
permissible as specified in the “Technical
data” section of this Operator’s Manual.
Snow chains should only be driven on snow-
covered roads at speeds not to exceed
30 mph (50 km/h). Remove chains as soon
as possible when driving on roads without
snow.
Observe the following guidelines when using
snow chains:
R Use of snow chains is not permissible with
all wheel/tire combinations ( Y page 299).
R Use snow chains in pairs and on rear
wheels only. Follow the manufacturer’s
mounting instructions.
! If snow chains are mounted to the front
wheels, they may scrape against the body
or axle components. The tires or the vehicle
could be damaged as a result.
R Only use snow chains that are approved by
Mercedes-Benz. Any authorized Mercedes-
Benz Center will be glad to advise you on
this subject.
R Use of snow chains may be prohibited
depending on location. Always check local
and state laws before installing snow
chains.
R Do not use snow chains on the spare wheel.
i When driving with snow chains, you may
wish to switch off the ESP ®
(Y page 56)
before setting the vehicle in motion. This
will improve the vehicle’s traction.
Winter driving instructions
GWarning!
If the vehicle becomes stuck in snow, make
sure snow is kept clear of the exhaust pipe
and from around the vehicle with the engine
running. Otherwise, deadly carbon monoxide
(CO) gases may enter vehicle interior
resulting in unconsciousness and death.
To assure sufficient fresh air ventilation, open
a window slightly on the side of the vehicle
not facing the wind.
208Winter drivingOperation
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Control and operation of radio
transmitter
Safety notesGWarning!
Please do not forget that your primary
responsibility is to drive the vehicle. A driver’s
attention to the road must always be his/her
primary focus when driving. For your safety
and the safety of others, we recommend that
you pull over to a safe location and stop
before placing or taking a telephone call.
If you choose to use the telephone 16
while
driving, please use the hands-free device and
only use the telephone when road, weather
and traffic conditions permit. Some
jurisdictions prohibit the driver from using a
mobile telephone while driving a vehicle.
Only operate the COMAND 16
(Cockpit
Management and Data System) if road,
weather and traffic conditions permit.
Otherwise, you may not be able to observe
traffic conditions and could endanger yourself
and others.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximately
14 m) every second.
Emission control
Certain systems of the engine serve to keep
the toxic components of the exhaust gases
within permissible limits required by law.
These systems will function properly only
when maintained strictly according to factory
specifications. Any adjustments on the
engine should, therefore, be carried out only
by qualified Mercedes-Benz Center
authorized technicians.
Engine adjustments should not be altered in
any way. Moreover, the specified service
procedures must be carried out regularly
according to Mercedes-Benz servicing
requirements. For details refer to the
Maintenance Booklet.GWarning!
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon
monoxide (CO), and inhaling it can cause
unconsciousness and possible death.
Do not run the engine in confined areas (such
as a garage) which are not properly ventilated.
If you think that exhaust gas fumes are
entering the vehicle while driving, have the
cause determined and corrected
immediately. If you must drive under these
conditions, drive only with at least one
window fully open at all times.
Maintenance
Notes
The Maintenance System in your vehicle
tracks the distance driven and the time
elapsed since the last maintenance service.
It calculates other maintenance service work
required, and calls for the next maintenance
service accordingly.
We strongly recommend that you have your
vehicle serviced at an authorized Mercedes-
Benz Center. Have it serviced in accordance
with the Maintenance Booklet at the times
called for by the maintenance service
indicator.
i Failure to have the vehicle maintained in
accordance with the Maintenance Booklet
and maintenance service indicator at the
designated times/mileage will result in
vehicle damage not covered by the
Mercedes-Benz Limited Warranty.
16 Observe all legal requirements.Maintenance213Operation230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 213Z