Nw user, young BMW owner needing help.
I have a 1985 BMW 325e and recently my heater in my car hasn't been working and neither has my power windows. I read somewhere to check the relays. I put that off for a few days, today though when I changed the heater fuse (#20) it started working. Before this, the fuse would keep blowing. The heater works now, but its making a strange grinding noise when I turn it on. At first it was really loud, but now its a little quieter. I want to know more before I mess with it.