I have been having an issue where my 2001 BMW 325 ci A/C Heater was blowing slow then fast. Couple occasions wouldn't blow at all. Then the blowers where blowing air when the car was off on its own. That also caused my battery about five times to die so I had to jump it to start. Just today the blowers stopped working all together. The air lights still work as if the air was blowing but now nothing is coming out of the vents. No Air Or Heat! Does anyone know what the problem is? And what part do I need to fix?