u may need a freon recharge. i recharge my own freon with a kit you can buy at autozone or whereever else and you get the freon there too (R-134A) and just follow the directions it isnt too hard. but i think if u get it done by a mechanic it gets much colder and last a lil longer. but im satisfied with doing it myself and its pretty cold.hope this helps.peace.
I have the same problem, sometimes it blows cold and sometimes hot. Freon is good, compressor is good, I think the problem is in the control box I think some of the doors are not closing and mixing hot and cold. I really hate to take the dash apart. That is a pain in the you know what. If anyone can help it would be great
it's a 2001 beetle 1.8 turbo........... thanks jaxs1