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Where is the maintenance port for the a/c recharge?

(1990 Audi 100)
in San Lorenzo, CA on November 17, 2012
I looked online but couldn't find a simple illustration of the engine with lined labels or something similar.
Displaying 2 answers & 2 comments
Popular Answer
on November 17, 2012
One is on the low pressure side line the other is on the high pressure side line. Check by condensor, might be hidden by grille.
on November 18, 2012
Ok, thanks ziptie12. Ill take another look.
on November 17, 2012
follow the a/c lines, you should find a schrader type valve or a quick disconnect valve...
on November 18, 2012
Thanks. I'll check it out again tomorrow.
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