I realize that this is an e30 board, but I'm looking for some expert advice, and I was referred here. This is an e46 with 55k miles (2003 325i).
If you would be so kind as to listen to the following .wav file, I will tell you about it.
http://home.comcast.net/~ne240sx/325.wav
This is an underhood sound from 1k rpm to 2k rpm with no load (Park). At ~1600rpm there is a distinct rattle/vibration that continues for about 300rpm then disappears after 2k. This is very recent, we don't have any CEL or power loss in the rev range, however we are very worried. I've heard comments such as "Vanos", "Camshaft angle sensor" and the like. The sound quality is not the best, however, and I'm sorry about that. Any thoughts or suggestions would be excellent.
TIA
If you would be so kind as to listen to the following .wav file, I will tell you about it.
http://home.comcast.net/~ne240sx/325.wav
This is an underhood sound from 1k rpm to 2k rpm with no load (Park). At ~1600rpm there is a distinct rattle/vibration that continues for about 300rpm then disappears after 2k. This is very recent, we don't have any CEL or power loss in the rev range, however we are very worried. I've heard comments such as "Vanos", "Camshaft angle sensor" and the like. The sound quality is not the best, however, and I'm sorry about that. Any thoughts or suggestions would be excellent.
TIA
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