Maserati QUATTROPORTE Owner's Manual page 158

Dashboard Instruments and Controls
temperature. If the front or
rear passengers adjust the
temperature setting the system
automatically break the function
and turn it off.
7 Set the blower speed through
seven speed levels.
8 Turn off the rear climate option.
9 Block the settings of the rear
climate.
10 Return to the front climate
control screen.
4
11 Re-activate the rear climate
setting.
Operating Tips
• Continuous use of the air
recirculation in winter, in rainy
weather or humid climate is not
recommended because it may cause
window fogging.
• Interior fogging on the windshield
can be quickly removed by fast
defrosting/demisting. The "Mix"
mode can be used to maintain a clear
windshield and provide sufficient
heating. If side window fogging
becomes a problem increase blower
speed.
156
NOTE:
• Recirculation mode without A/C
should not be used for long periods
of time, as fogging may occur.
• If inside the passenger compartment
there are conditions of high
temperature and humidity, when
the A/C compressor is switched on
("A/C" soft-key illuminated on MIA
display or LED on climate control
panel "A/C" button ON) there may be
some cold steam at ventilation port
outlet: this situation is normal and
does not indicate air conditioning
system malfunction.
• Automatic Temperature Controls
(ATC) will automatically adjust the
climate control settings to prevent
or eliminate window fogging on the
front windshield.
• Make sure the external air intake
grille, located directly in front of the
windshield, is free of obstructions
such as leaves or other objects.
Leaves collected in the air intake may
reduce airflow, and if they enter the
plenum, they could plug the water
drains. In winter make sure the air
intake is clear of ice, slush, and snow.
• The temperature can be displayed in
Metric or US units by selecting the
"Units" customer programmable
function. See "Functions of Settings
Menu on MIA" in this section.
• Any time you store your vehicle
or keep it stationary (i.e., during
vacation) for two weeks or more, run
the air conditioning system at idle
for about five minutes in the fresh
air by high blower setting. This will
ensure adequate system lubrication
and minimize the possibility of
compressor damage when the system
is started again.
A/C Filter
The climate control system filters
outside air containing dust, pollen and
some odours. Strong odours cannot
be totally removed by A/C filter at the
entrance of the air climate system. See
"Maintenance Procedures" in section
"Maintenance and Care" for filter
replacement instructions.