[F30Bimmer13]

We have a 13 BMW 328i and been trying to wrap our heads around why the AC system works sometimes and then goes crazy at other times. Sometimes the AC system will keep resetting on and off every couple seconds over and over then sometimes works just fine like nothing is the matter. I was told more than likely the FEM module could be messed up? Never had a problem before and all this happened after swapping a new set of used seats to replace the cracked ones i had and we disconnected the battery for a long period of time. Anyone else have this problem?

Are the FEM modules all the same if i buy one used? New at BMW is over $700. Anyone local in orlando that can program if i can find a used one?

[mig2830]

I do not think it is the FEM.

Any error codes?
Are the new seats identical to the original electricly speaking-seat heating, adjustment, memory. It could be as simpel as a defective SM or that the initialisation is not done?