OK here is an odd problem. The rear a/c vents will drain water into the back seat carpet only when the HVAC is in recirculation mode. I found the two drains by the transmission and water will drip while in normal mode. however when I put it in recirculate no water escapes the system via the drain but will eventually make it into the back seat from the vents.

Does anyone have any diagrams of the inner workings of the AC system so I can try to determine why this is happening?

I am not sure if there are other AC drains but it is definitely A/C related and only when in recirculation. The car just started doing it this summer so I have to assume there is some drain somewhere that I am missing.


Here is a link to some pictures I have of the drains and another similar link. Check message 12 and 13. http://forums.bimmerforums.com/forum....php?t=1494700



Thanks