2002 MERCEDES-BENZ ML320 Auto

106 Rear window wiper/washer
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Move stalk up for:
Normal wiper speed
Fast wiper speed
Note:
When shifting into reverse with windshield wipers on,
the rear wiper automatically turns on.Rear window wiper/washer
The rear window wiper / washer switch is located in the
center console.
12

107 Rear window wiper/washer
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index With key in steering lock position 2:
1Intermittent wiping
To a c t i va te :
Press upper half of the switch.
To deactivate:
Press upper half of the switch again.
2Rear window washer
Press and hold lower half of the switch to activate
rear window washer.
After releasing the switch the wiper operates for
additional 5 seconds.
Once activated, the rear intermittent wiper function
remains active.
The rear window wiper will also automatically engage if
the windshield wiper is engaged and the gear selector
lever is placed in “R” Reverse.Windshield wipers smear
If the windshield wipers smear the windshield, even
during rain, activate the washer system as often as
necessary. The fluid in the washer reservoir should be
mixed in the correct ratio.
Note:
For windshield and headlamp washer fluid mixing ratio
see page 259.
Blocked windshield wipers
If the windshield wipers become blocked (for example,
due to snow), switch off the wipers.
For safety reasons before removing ice or snow, remove
key from steering lock. Remove blockage.
Activate windshield wiper / washer switch again (key in
steering lock position 1).

108 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Automatic climate control
P68.10-2565-29
1
3
3
5
5
2
4
6
2

109 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Display and controls
2Thumbwheels for the center air outlets
To open the left air and center air outlet:
Turn the left thumbwheel upward.
To open the right center air outlet:
Turn the right thumbwheel upward.
3Thumbwheels for the side air outlets
To open the side air outlets:
Turn the thumbwheels upward.
To defrost the side windows in the area around the
exterior rear view mirrors:
Turn the thumbwheel to the center position.4Center air outlets, adjustable
5Side air outlets, adjustable
6Defroster outlet windshield
Important!
The air outlets should be remain open to allow
unrestricted operation of the automatic climate control.
Notes:
For the air flow-through system to function properly, the
air vents and air outlets should be kept unobstructed.
The air outlets can be directed towards your body or
pointed upwards for draft free ventilation of the interior.

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.
1
2
3
45
6
10
89
P83.30-3550-26
7

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.

112 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Basic setting - automatic mode
To a c ti va te :
With the engine running, briefly press the Ubutton.
The indicator lamp in the Ubutton lights up. The
temperature, air volume and distribution are controlled
automatically.
Temperature can be adjusted with the temperature
control, which is located in the center.
Turning the control wheel to either the blue or red dot
switches off the temperature regulation.
To deactivate:
Briefly press the Ubutton. The indicator lamp in the
Ubutton goes out. The automatic mode is switched
off, air volume control is set to fan speed 2 and air
distribution is set to positionV.To activate basic setting:
Press Ubutton at least 3 seconds.
All functions are switched to automatic mode and
temperature is set to 72˚F (22˚C).
The rear window defroster may be switched on
manually.
P83.30-3551-21

113 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Programming the basic temperature setting
Set temperature control to the desired temperature.
Press the Ubutton for 10 seconds.
The new temperature value is selected and set.Note:
Make the temperature settings in small increments.
P83.30-3552-21