Hey guys, I have a bmw e34 525i from 1989 that has a few small electrical problems I am dealing with. I just recently replaced that inner dash unit with the capacitors and all to deal with some problems, I thought this was included but apperently its related to soemthing different because all the other dash problems like my odometer not working are now fixed. Anyways, here is the problem I am facing now..

When you turn on the ignition and all of the electrical BEFORE the car STARTS, I get this buzz and vibration coming from inside the dash near the AC and radio, basically high center. I know there is always a buzz AFTER the car is SHUT OFF on most e34s in the same area, but this buzz is louder, it rattles, and it doesnt stop after 20 seconds or however long the other one lasts. This continues until you turn the electrical off.

Also, my air conditioning fan seems to cut on and off randomly in long intervals if I turn it on, so I don't know if this is connected or not, but it's all in the same area so it could quite well be.

Also, if you guys know how much new water pumps cost that would also help me a lot, because apperently mine is not circulating enough and I'm running hot.

Thanks guys, I hope my description helps you diagnose the problem...