3-Series (E21, E30)Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.
I've got a 325es that's making a whining noise at between 2k - 3k rpms, goes away when I take my foot off the gas or when i turn the steering wheel a bit. It doesn't seem to effect the car's driveability, but I'm wondering what it is and how much $$ it's gonna be to repair.
ya, checking fluids is always the first thing that you want to do when you hear a noise. It probably isn't a wheel bearing if the noise is dependent on engine rpm. Wheel bearings usually make a clunking noise when stopping. Could also be your power steering pump. I have heard those make some pretty weird noises that are variable with engine speed. Where does it sound like the noise is coming from? You said it goes away when you turn the wheel some, so its actually probably nothing to do with the tranny or rear end, but check those fluids anyway. well, good luck. keep us updated on what you find
Take a look at the boots over the wheel bearings. I had something like that happen on my car(geo) only happened during acceleration and went away with minor steering. One of the boots was slightly loose and rubbing on something.
OK - found the source of the problem. Looks like wheel bearing is going bad in the rear passenger wheel. I was on the phone w/ phaedrus in san francisco while driving on the highway and the guy at the counter recommended that i slalom the wheel a little bit left and right and note whether the noise decreased depending on the direction. It gets worse when aiming right and less so when aiming left as he thought it would. Pulled off the highway and noticed there was some play in the wheel if it was pushed back and forth into the car.
Gonna take it in and have this fixed as well as get the diff fluid changed since it'll be up on a rack anyway.
Thanks a lot for your advice guys, gotta give you all props.
Yeah, taking to phaedrus bmw in san francisco, they come pretty highly recommended by some friends. I'd like to try to do as much of the work as I an myself, but I don't have a garage available right now.
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