Here's the post:
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Message Title: M5 Engine Issue? Oscillating
Posted by: eighties_riff on 2002-07-02 at 23:08:03
(posted from: Host: user-38ld8q8.dialup.mindspring.com IP: 209.86.163.72)
Message:
Just bought a 2000 M5 from the dealer in S. Florida, 23k, about 6 weeks ago. Love it.
I'm noticing, especially at low rpms / speeds (ie 30 MPH), that the engine is making a woo-woo type noise- the car vibrates a little on each "woo". I revved it a little at park to see if I would still get the problem (rule out tires), and, yeah, its still there.
When I crank it up, I can't here (sic) it any more- rpms to fast to notice.
Any advice (beyond drive faster than 30)? Thanks. Any idea as to the prob? It is subtle, but I'm concerned about it getting worse.
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On my old 10/99 built 2000 M5 I had the "woo woo" motorboating sound but no vibration. It seemed to happen at around 30-35 mph in 3rd gear and 1800-2000RPM. I did not experience this on my 2001 or current 2002. I sold the 2000 with 12,000 miles and had no issues with the car. I forgot about it until I read this post. Has the cause ever been determined? Old style piston rings?
MJ
'02 Sterling