A/C not working passenger side
 

Years back I had to take my car in for oil in the distributor. When they fixed this on my 2000 323i the dealer messed up and cold air wouldn't blow out the passenger side. It is medium temperature, just not cold. I took it back and the fixed it really quick. Now years later it is doing the same. Do not have dual temperature control. If it's a quick fix, I'll just do it. Any ideas?

Oil in the distributor? You dont have a distributor.

A quick fix solution to a the problem you describe would probably be loose cable.