[adrianfmb]

So my A/C was working great and then on the front passenger side my brother closed the a/c vent saying it was too cold after that the right side is not cold anymore just drivers and rear passenger any ideas?

[ChiNorm]

I had something similar. It turned out to be an electronic valve gone bad. My indy says its common in a 10 y.o. Bimmer. Was relatively cheap to replace.

Good luck.

[adrianfmb]

Is it the heater control valve?

[ChiNorm]

I don't think so. My problem was that warm air was coming from some dash vents but not all.