Move slider (B) to 
.
This function is particularly useful when the outside air is heavily polluted (in a traffic jam, tunnel, etc.). However, it is better not to use it for long periods, especially if there are several people in the car.
IMPORTANT The inside air recirculation system makes it possible to reach the required “heating” or “cooling” conditions faster. Do not use the air recirculation function on rainy/cold days as it would considerably increase the possibility of the windows misting inside.
See also:
Low battery charge
Turning the key to MAR the warning light on the dial turns on, but it should
go out as soon as the engine is started (with the engine running at idle speed a
brief delay in going out is allowed) ...
Fiat Doblo Owner's Manual
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Using the seat belts
The belt should be worn keeping the chest straight and rested against the seat
back.
To fasten the belt, take hold the tongue (A) and insert it into the buckle (B),
until hearing the locking cl ...