AC Compressor Clutch. AC Compressor. For 2008 - 2014 SUBARU IMPREZA 4CYL 2.5L. 80% of the compressor fail because of a lack of lubricating oil or because of the blockage of the system. So, if the total amount of oil in the system is 200 ML (6.76oz) then the compressor should have 130ML (4.39oz) of oil.
