just to share the problem.....
last yerar my car already 3yrs, i have the same problem, 1st shop, yes they said have to change new compresor or find the recond. i dont belive.....go to second shop, the tauke is old timer for aircond service, just said "KANTAN" (japan word=simple) just change the a/c filter(for normal cal will be like bottle with small cermin to see the gas bubble) but for kenari locate on the side (rediator for a/c) i don't know the name.
change the filter, add new oil for a/c and also gas. Problem Solve.
Try first, before change new compressor.