1997 MERCEDES-BENZ ML500 display

99 Climate control
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Air volume control switch
2Temperature selector switch
3Air distribution switch
4Air recirculation
5Air conditioning mode
6Air volume control for center air outlets,
turn wheel up to open.
7Air volume control for side air outlet,
turn wheel up to open.
8Center air outlets, adjustable
9Side air outlets, adjustable
10Windshield air outlets
11Floor outlets
The air conditioning mode only operates with the œ
button pushed, the air volume control switch set to
position 1 to 4, and the engine running.To quickly cool down the passenger compartment, turn
temperature selector switch fully to the left to
positionO. Turn temperature selector to maintain
desired temperature.
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.
Important!
This vehicle is equipped with an air conditioner system
that uses R–134a (HFC: hydrof luorocarbon) as a
refrigerant. Repairs should always be performed by a
qualified technician, and refrigerant should be collected
in a recovery system for recycling.
Note:
For the air flow-through system to function properly, the
air vents, located in the left and right side rear
passenger compartment trim panel covers, should be
ke pt un obst ru cte d .

100 Climate control
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Basic setting - Heater
Select temperature.
Select air volume with control switch Q, set at least
to position 2 to prevent windows from fogging up.
Set air distribution control switch to position shown
above.
Turn wheels (7) to position l to open left and right
side air outlets (9). Adjust air outlets upward.
Open center air outlets as desired.Basic setting - Air Conditioner
Switch on air conditioner with control buttonœ.
Select temperature.
Select air volume with control switchQ, set at least
to position 1.
Set air distribution control switch to positiona.
Open side air outlets.
Open center air outlets.

101 Climate control
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Special setting (use only for short duration)
Defrosting windshield
Set temperature selector and switches for air volume
and air distribution to position P.
Turn wheels (7) to position l to open left and right
side air outlets (9). Adjust air outlets upward.
Close center air outlets.Defogging windows
Windows fogged up on inside.
Switch on air conditioning mode with controlœ.
Switch off air recirculationO. Indicator lamp in
button goes out.
Set air distribution control switch to positionc.
Increase air volume with control switch.
Turn side air outlet wheels (7) to position l.
Close center air outlets.

102 Climate control
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Windshield fogged up on outside.
Switch on wiper motor.
Set air distribution control switch to positiond
ora.
Dust filter
Nearly all dust particles and pollen are filtered out
before outside air enters the passenger compartment
through the air distribution system.
Note:
Keep the air intake grille in front of windshield free of
snow and debris.
Climate control – OFF
To switch the climate control off, set air volume control
switch to position0.
Switch off air conditioning mode œ. Control lamp in
button goes out.Air recirculation
This mode can be selected to temporarily reduce the
entry of annoying odors or dust into the vehicle’s
interior.
Outside air is not supplied to the vehicles’s interior.
To select, press O button. Indicator lamp in button
lights up.
To cancel, press O button again. Indicator lamp in
button goes out.
If the windows should fog up from the inside, switch
from recirculated air back to fresh air.

103 Climate control
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Rear window defroster
The switch is located on the center console.
With the engine running, press upper half of the switch.
Indicator lamp in switch comes on.
To cancel, press upper half of the switch again. Indicator
lamp in switch goes out.Notes:
Heavy accumulation of snow and ice should be removed
before activating the defroster.
The rear window defroster consumes a large amount of
electrical power. To keep the battery drain to a
minimum, turn off the defroster as soon as the window
is clear.
The defroster is automatically turned off after
approximately 10 to 18 minutes of operation, dependent
on the outside temperature.
If several power consumers are turned on
simultaneously, or the battery is only partially charged,
it is possible that the rear window defroster will
automatically turn itself off. When this happens, the
indicator lamp inside the switch starts blinking for
approximately 30 seconds. If within this time the
battery has sufficient voltage, the rear window defroster
automatically turns itself back on.
After approximately 30 seconds without sufficient
voltage the rear window defroster switches off (indicator
lamp goes out).

104 Interior equipment
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Power w indows
Power window switches located on front center console
1left, front
2right, front
3left, rear
4right, rear
5Switch for rear door window overridePower window switches located on rear center console
6individual switches (rear doors)

105 Interior equipment
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index The windows can be operated with key in steering lock
position 1 or 2.
Operation:
Press switch in to resistance point to open.
Lift switch to close.
Release switch when window is in desired position.Express opening of front door windows
Press switch past resistance point and release – window
lowers to fully open position. To interrupt procedure,
brief ly pull switch.
Blocking of rear door window operation
If no operation of the rear door windows by switch (6),
located on rear center console (for instance by children)
is desired, slide override switch (5) to right,
symbolN becomes visible.
Note:
After turning off the engine the power windows can be
operated for approximately 30 minutes or until a front
door is opened.
Wa r n i n g !
When closing the windows, be sure that there is no
danger of anyone being harmed by the closing
procedure.The closing procedure can be immediately reversed
by pressing the power window switch.When leaving the vehicle, always remove the key
from the steering lock, and lock the 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.
Wa r n i n g !
When leaving the vehicle, always remove the key
from the steering lock, and lock the 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.

106 Interior equipment
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Rear quarter windows (optional on ML 320 and 430)
Switches located on front center console
The rear quarter windows can be operated with key in
steering lock position 1 or 2.
1Push to open.
2Push to close.Note:
After turning off the engine the rear quarter windows
can be operated for approximately 30 minutes or until a
front door is opened.
12
Wa r n i n g !
When closing the windows, be sure that there is no
danger of anyone being harmed by the closing
procedure.When leaving the vehicle, always remove the key
from the steering lock, and lock the 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.