| If you swapped to R134a then several things should have been replaced. I always thought the whole compressor but if the oil only can be done, so be it. I think the receiver/dryer gets replaced, vacuum drawn, the right oil put in, then R134a. Usually they black out the sight glass too. My 86 euro 300SEL has R134a (not my choice, got it that way) and it runs just fine. |