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E46 M3 Rattling Noise

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    E46 M3 Rattling Noise

    https://youtube.com/shorts/pOgB_yE2UggLooking for some assistance in diagnosing this rattling sound that my car makes when cold at the 2-3k RPM range. I tried to capture the sound in the video (will likely need to turn up your volume). The odd thing is, the noise will go away when the car gets up to temp. My first though was guibo or CSB but those noises from my experience dont go away when the car gets up to temp.
    Any ideas?
    Car has around 170k Miles and the Vanos was done with a full Beisan rebuild around 5k miles ago. Might be worth mentioning that the belts, pulleys and tensioners will need doing soon as they squeak on cold starts.

    Video with the noise:
    Last edited by travisp412; 06-19-2023, 10:16 AM.
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