joegolden481

Hey there! It's been a while but I need a little help on my 95 a6 a/c. It only blows cool air. The blower works perfectly at all speeds. I wanted to add a little r134 with oil additive to the system. I do have a pressure gauge. I just can't find the low side to add the freon. I see what looks to be low side behind the grill on passenger side. Do you guys know if that is correct? Or any other advice? Thank you!