1996 Audi A4 Quattro Q&A

1996 Audi A4 Quattro Question: where is the low pressure port to fill up the freon ?

i can only find the high pressure port if any one can help with this i will appreciate it -
Answer 1
It is on the intake line side of the evaporator, illustration is poor appears to be on the front side near bumper level. -
Comment 1
you mean it is inside the dashboard or in the front by the radiator? because i can only see the high pressure/ can you be a lil more specific? -
Answer 2
A 1996 Audi A4 does not have a low pressure "port". It only has a low pressure switch that can be removed (jumper the switch connector), replaced by a 82272 Mastercool adapter that you can recharge through. I'd suggest you search a bit on the Internet, and you'll find a very useful page on how to do this. -
Comment 1
thank you very much i have just bought the adapter -
Comment 2
I'm having the same problem. Where can I buy the adapter -