12-05-2018, 08:50 PM | #1 |
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Engine whine
My wife's M3 has been in for service 4 times for a engine whine. They have replaced belts and pulleys, but the noise just comes back.
Anybody else have this issue. |
12-07-2018, 06:35 AM | #2 |
Colonel
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Didn't have it myself, but any chance it's the alternator? Not sure what else would make a whine besides that. Does the pitch of the whine change with the revs, or is it a constant pitch?
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12-07-2018, 06:51 AM | #3 |
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Yes, it will change when it revs. It's the worst on cold starts. We are supposed to get the car back today with a new belt.
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12-07-2018, 07:15 AM | #4 |
Colonel
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Not sure if the belt would be the problem then. A slipping belt makes a horrible squealing sound, there's no mistaking it. The only thing I have experienced in the past making a sound like you describe is the alternator, but either way, hope it gets sorted out. Best of luck.
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12-09-2018, 08:34 PM | #6 |
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I have something similar to this - I had them look at it 1200 mile service and didn't see any issues, but the tech heard it as well. I haven't noticed any issues with the car, and I had a MY16 M4 so I have something to compare it to - and it for sure has a wine comparably. It's worse at like 3-4k. I just try to ignore it lol, might just be transmission noise who knows.
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12-09-2018, 08:39 PM | #7 | |
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Quote:
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