From my research I belive the A/C control relay is bad. Does anyone know where this relay is located or does anyone have a diagram of fues and relays? I have a 1993 BWM 325i and the fuse box only lists what the fuses are. I have no idea about the relays.
There are several relays for the A/C system on these. Using the reverse of the lid of the fuse/relay plate box it will show you the positioning of the relays but not the description;
I've added in the description so hopefully will help you!
There is no relay itself for the A/C control, however there are a couple of fuses for this. If you need I can supply you with the fuse position and exact function within the AC system.
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