Some of you may know about the water pump using a plastic impeller. I found out the hard way. Almost home and all of a sudden smoke, steam comes from under my hood. Im like holy shit! Only 1 block from house so I keep on going, as I drive onto my driveway, it gets worse. I get out, look behind me on the street and theres *lots* of water following me to my driveway. Looked under the hood and no coolant. Had to get the car towed to mechanic and turns out, the plastic impeller failed-broked, causing the radiator to bust and some hoses. Radiator probably busted at weak point,old age, but this did cost me alot to fix. 99% of people talked to say the plastic impeller caused this. No coolant flow, heated up, and boom..problems.
Anyway, it turns out its a common problem. Have the pump replaced or end up SOL when it fails.
Heres a good article I found on a wiring problem that shorts out...causing electric failure Wiring Problem of the E36
This is just a heads up..its better to be safe than to shell out money on things you could have avoided