Alfa Romeo 159 Owner's Manual page 69

In certain weather con-
ditions (e.g. outside
temperature
0°C) and with automatic air re-
circulation control on, mist may
form on the windows. In this
case press button v to
switch off recirculation and if
necessary press button + to in-
crease the flow of air to the
windscreen.
With the outside tem-
perature below -1°C the
climate control compres-
sor is unable to work. It is
therefore inadvisable to use the
inside air recirculation function
with low outside temperature
as windows may mist over
quickly.
68
AQS function (Air Quality
System) (where provided)
around
The AQS function turns on automatical-
ly air recirculation when it detects the
presence of polluted air (e.g. in queues
and tunnels).
IMPORTANT With AQS function on,
after a preset time with recirculation on,
the compressor will enable outside air
inlet (for about 1 minute) to change air
inside the passenger compartment, re-
gardless of outside air pollution level.
IMPORTANT The AQS function is dis-
abled when the outside temperature is
cold to prevent window misting up. To
reactivate this function, press button
v. Led "A" on button v will
turn on to indicate that the function is
on.
POLLEN FILTER/ ACTIVATED
CARBON POLLEN FILTER
According to versions, the car can be fit-
ted with pollen filter or activated carbon
pollen filter (where provided). The filter
has the specific capability of admitting to
the passenger compartment purified air,
free from particles such as dust, pollen,
etc. The filtering action takes place un-
der all air inlet conditions and it is clear-
ly most effective with the windows shut.
Have the conditions of the filter checked
by Alfa Romeo Authorized Services at
least once a year, preferably at the on-
set of summer. If the car is used main-
ly in polluted or dusty areas it should be
checked and if necessary replaced at
shorter intervals than specified in the
Service Schedule (see section "Car
Maintenance").
Failure to replace the fil-
ter may considerably re-
duce the effectiveness of
the climate control system up to
blocking the air flow from the
outlets and vents.