i am having yet another problem with my 525. The alternator seems to be making wierd buzzing noises on occasion. It hasnt done it in a while, but now I am noticing it makes a knocking noise, not too loud, but it really makes it sound like I have thrown a pile of tin onto the motor. I was told that the bearings are wearing out, so does this mean I buy a new alternator... or do I just get it rebuilt. Thanks for any advice.
1985 318i (about to be junked)