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Where is the fitting for the low pressure side? I cannot find it so I can't put R134 in. There is foam in the sight glass so there is some in it.

its on the accumulator dude right behind the drivers side headlight. Thats the freon fill. It took me about 2 cans of R-12 before I realized that. I ended up having to flush my whole system. I asked every Porsche guy I know and noone could give me the answer. It just goes to show that alot of guys know a crap load about Porsches but if you give them a wrench they dont know how to turn it. I guess you got to find answers yourself sometimes. Alright man, I hope this helped you at all. Baker