Hey there!
Long story short.
First cold day when I used some real heating up to 22 degrees. (Last weekend I had to use A/C to cool off..). Everything seemed fine. Left my car at parking lot for couple of hours. Came back. Remote doesnt work. Battery was drained empty. When switched the blowers in the interior went full blast. And the **** didnt make any difference. The only way to turn it off in order to not murder another batery, was to remove the relay for the climate control module.. (atleast i hope its called so. It was in french on my car).

Any ideas whats going on, why, and how to fix it?
Thanks!