Blower motor vs Fsr

[Dmoney]

I have an 03 325i and I've had it repaired 4 times for the b motor and Fsr and one has now failed for a fifth time. The air was working fine but, the last time it was repaired ,the voltage started oscillating and the car would stall in traffic or even while parked. It would idle high and then idle so low that the car shuts off. Last week the a.c went off but came back on after a few minutes . Then the other day the a.c went off and now it doesn't work at all. I noticed about a week before it went out,it would be cooling fine and all of a sudden it would stop cooling and you could smell the like stale air when it stopped cooling and then it would start cooling again. Now that the a.c doesn't work, the car idles normal but,the radiator icon is illuminated and stays on but it's not overheating. Plus I just had the radiator and hoses replaced.