I haven't got one on mine but some are supposed to have a filter at the air intake although my manual makes no reference to it. It involves removing the wiper arms so you can remove the air intake grill and its under there I'm told.
IN MY COUNTRY PILOT IS AT LEFT SIDE AND PASEENGER AT RIGHT, SO THE FILTER IS AT RIGHT SIDE BETWEEN WINDSCREEN AND BONNET BELOW A RAIN PLASTIC COVER .
IF IN OTHER COUNTRIES PASSENGER IS AT LEFT, WELL THE FILTER WOULD BE AT THE LEFT SIDE.
ONLY EXCEPTION IS THOSE COUNTRIES THAT NOT HAVE POLEN.
ORIGINAL SPARE N° : 60813795
SPARE IS ITALIAN MAGNETI MARELI N° 008.02198
AND IS THE SAME FOR LANCIA DEDRA, DELTA AND FIAT TEMPRA AND COUPE.