Page 145 of 385
142 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Display and controls
1Air volume
2Temperature control, left
3Temperature control, right
4Air distribution control switch5Rear window defroster, see page 149
6Economy mode AC
OFF, see page 147
Residual engine heat utilization, see page 148
7Air distribution and air volume (automatic)
8Air recirculation, see page 146
9Defrosting, see page 145
Important!
This vehicle is equipped with an air conditioning
system that uses R-134a (HFC: hydrofluorocarbon) as a
refrigerant. Repairs should always be performed by a
qualif ied technician, and refrigerant should be collected
in a recovery system for recycling.
72
F
6480
72
F
6480ACOFF
J_G463.book Seite 142 Mittwoch, 19. September 2001 8:06 08
Page 146 of 385

143 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Climate control
The system is always at operational readiness, except
when manually switched off, see page 147.
The climate control only operates with the engine
running.
The air conditioning will not engage (no cooling) if the
economy mode AC
OFF
is selected, see page 147.
The temperature selector should be left at the desired
temperature setting. The temperature selected is
reached as quickly as possible.
The system will not heat or cool any quicker by setting a
higher or lower temperature.
The desired interior temperature can be selected
separately for the left and right side of the passenger
compartment. Adjust the temperature settings in small
increments.
The climate control 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.Notes:
Do not obstruct the air f low by placing objects on the air
flow-through exhaust slots on the back left and right
trim panel in the rear cargo compartment.
Also keep the air intake grill in front of the windshield
free of snow and debris.
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
Light Truck Center should this happen.
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.
Dust filter
Nearly all dust particles and pollen are filtered out
before outside air enters the passenger compartment
through the air distribution system.
J_G463.book Seite 143 Mittwoch, 19. September 2001 8:06 08
Page 150 of 385

147 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Climate control - OFF/ON
To switch the climate control off, set the air volume
control switch to position 0.
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 switch the climate control on again, set air volume
control switch to any speed.Economy mode
The function of this setting corresponds to the
automatic mode. However, because the air conditioning
compressor will not engage (fuel savings), it is not
possible to air condition in this setting.
Press AC
OFF
button to activate. The indicator lamp in the
button illuminates.
Press AC
OFF
button once again to return to the previous
setting. The indicator lamp in the button goes out.
Important!
In the AC
OFF
mode the windows could fog up on the
inside. Switch off AC
OFF
mode.
J_G463.book Seite 147 Mittwoch, 19. September 2001 8:06 08