2002 MERCEDES-BENZ ML320 page 94

110 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Front display and controls
1Air volume control wheel
2Temperature control
3Air distribution control wheel4Defrosting, see page 115
5Air recirculation, see page 116
6Automatic mode AUTO
Automatic control of temperature, air distribution
and air volume
7AC
OFF
, economy mode see page 117
Residual engine heat utilization, see page 117
8Rear window defroster, see page 121
9Rear passenger compartment ventilation switched
off, see page 118
10Interior temperature sensor
Important!
This vehicle is equipped with an air conditioner system
that uses R–134a (HFC: hydrofluorocarbon) as a
refrigerant. Repairs should always be performed by a
qualified technician, and refrigerant should be collected
in a recovery system for recycling.
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2
3
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6
10
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P83.30-3550-26
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111 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Automatic climate control
The automatic climate control only operates with the
engine running.
The system is always at operational readiness, except
when manually switched off.
In the automatic mode the automatic climate control
cools or heats the interior depending on outside
temperature and the selected interior temperature.
Make the temperature settings in small increments.
If the vehicle interior has been heated by direct sunlight
and is very hot, ventilate the interior (open door or
windows for a short period) before driving off
Keep the air intake grill in front of the windshield free
of debris and snow.
The air conditioning mode removes considerable
moisture from the air during operation in the cooling
mode. It is normal for water to drip on the ground
through ducts in the underbody.
If the economy mode AC
OFF
is selected, the air
conditioning compressor will not engage and it is not
possible to air condition in this setting. See page 117.Notes:
The interior temperature sensor (10) should not be
touched to maintain a precise temperature.
If the vehicle travels from shade into direct sunlight, a
sensor automatically increases the air volume
temporarily to maintain the interior temperature.
The automatic climate control will not remove moisture
from the air at low outside ambient temperatures.
The air conditioner switches itself off for its own
protection if refrigerant is lost. No cooling will then take
place. Economy mode AC
OFF
cannot be switched off.
Have the air conditioner checked by a Mercedes-Benz
Center should this happen.
Dustfilter
Nearly all dust particles and pollen are filtered out
before outside air enters the passenger compartment
through the air distribution system.
Severe conditions (e.g. strong air pollution) may require
replacement of the filter before its scheduled interval.
A clogged filter will reduce the air volume to the
interior.

118 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Switching the automatic climate control on and off
To s witch of f:
Set air volume control wheel to position0.
The indicator lamp in the Ubutton goes out.
The fresh air supply to the vehicle interior is shut off.
While driving, use this setting only temporarily,
otherwise the windshield could fog up.
To s witch on:
Press the Ubutton. The indicator lamp in the button
illuminates.Switching off the rear passenger compartment
ventilation and rear passenger climate control
For an improved cooling or heating output in the front
passenger compartment, the rear passenger
compartment ventilation can be switched off.
To s w i tch o f f :
Press the REAR-OFF button, see page 110. The indicator
lamp in the button illuminates.
The operation of the rear automatic climate control in
the center console and the fresh air supply to the rear
compartment is shut off.
To a c t i va t e :
Press REAR-OFF button again. The indicator lamp in the
button goes out.
The rear automatic climate control in the center console
switches to automatic mode and fresh air enters the rear
compartment.
For notes on the rear passenger compartment climate
control, see page 119.

126 Interior equipment
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Sliding /pop-up roof (optional)
1to slide roof open
2to slide roof closed
3to raise roof at rear
4to lower roof at rearThe sliding /pop-up roof can be operated with key in
steering lock position 1 or 2.
Notes:
The sliding /pop-up roof can be opened or closed
manually should an electrical malfunction occur, see
page 294.
After turning off the engine, the sliding /pop up roof can
be operated for approximately 30 minutes or until a
front door is opened.
RESETMODE
P68.00-2429-26
Wa r n i n g !
When closing the sliding /pop-up roof, be sure that
there is no danger of anyone being harmed by the
closing procedure.The closing procedure can be immediately reversed
by moving the switch in direction (1) or (3).When leaving the vehicle, always remove the key
from 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 can cause serious personal
injury.

127 Interior equipment
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index With the roof closed or tilted open, a screen can be slid
into the roof opening to guard against sun rays. When
sliding the roof open, the screen will also retract.
To open, close, raise or lower the sliding /pop-up roof:
Move and hold the switch in the required direction.
Release the switch when the roof has reached the
required position.Express opening of sliding /pop-up roof
To open sliding /pop-up roof automatically, briefly move
switch in direction (1) and release. The roof will not
open to the full open position (approx. 75%). Press again
to open it fully.
To interrupt procedure, briefly move switch in any
direction.
Note:
For resynchronizing the express opening feature see
page 294.
RESETMODE

130 Interior equipment
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Switch for interior lamps / lamps above rear doors
1Press to switch lamps above rear doors off.
To switch both lamps above rear doors on, briefly
press upper half of switch again.
Note:
With one lamp above rear door illuminated, first the
lamp goes out when pressing upper half of the
switch. Press again to switch both lamps on.2Press to switch interior lamps off (except cargo
compartment lamp).
The interior lamps remain switched off, even when
opening a door.
With rocker switch in center position, the interior
lamps operate as described on previous pages.
Entrance lamps, exit lamps in doors
The lamps are switched on and off by the door contact
switches.
Notes:
To prevent the vehicle battery from being discharged,
with doors open all interior lamps (except rear cargo
compartment lamp) go out after approximately
30 minutes.
If a interior lamp is switched on manually, it does not go
out automatically. Before leaving the vehicle, make sure
that all interior lamps are switched off.

133 Interior equipment
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Glove box
Pull handle (1) to open.
The glove box is illuminated with key in steering lock
position 1 or 2 when opening the lid.Storage compartment below center armrest
To open small compartment in armrest:
Press button (1) and lift armrest.
To open large compartment under armrest:
Press button (2) and lift armrest.
To c l o s e :
Lower armrest until it engages in lock.
To open compartment in front of armrest:
Slide cover (3) rearward in direction of arrow.
The compartment contains a cup holder, see page 135.

135 Interior equipment
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Cup holder in front of armrestTo o p e n :
Slide the cover rearward, see page 133, and fold the cup
holder (1) forward.
To c l o s e :
Fold cup holder rearward and slide the cover forward.
Caution!
Keep cup holder closed while traveling. Place only
containers that fit into the cup holder to prevent spills.
Do not fill containers to a height where the contents
could spill during vehicle maneuvers, especially hot
liquids.
P68.00-2606-26
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