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!

upallnight

You will need to take it in to an AC shop that have the equipment to charge the system through the High side.