001-055 Alfa 156 GB - Alfa Romeo serviss

INSIDE AIR RECIRCULATION
ON/OFF BUTTON v
(fig. 111)
Inside air recirculation is controlled according
to three operating logics:
– automatic control, indicated by the turning
on of the right led on the button;
– forced switching on (inside air recirculation
always on), indicated by the turning
on of the left led on the button (and by the
right led going off at the same time);
– forced switching off (inside air recirculation
always off, with air inlet from the outside),
indicated by the turning off of both
leds.
These operating conditions are obtained
by pressing in sequence the inside air recirculation
button (7) v.
When inside air recirculation is controlled
automatically by the system, the right led
on the air recirculation button (7) v
stays on all the time and the left led shows
the air recirculation condition:
ON = air recirculation operating;
OFF = air recirculation off.
fig. 111
If inside air recirculation has been switched
on or off manually, the led on button (14)
AUTO turns off.
A0B0072m
In automatic operation, inside air recirculation
is switched on automatically when the
anti-pollution sensor detects the presence of
polluted air, for instance in cities, queues,
tunnels, and when the windscreen
wash/wiper is operated (with the characteristic
smell of spirit).
GETTING TO KNOW YOUR CAR
129