My passeger side dont blow heat at all . in my cayeene o4. My driver side work

What is your question?

My driver side works but some time it go cold cause the passenger side blow sraight cold air. And some time my vents dont open at all like my vents frezze up. Its strange.

What makes this problem better or worse?

Whn its hot out and i really need the a.c to work

How long has your 2004 Porsche Cayenne had this problem?

Since three years i had it