Did they ever figure out what the noise was from? I have a similar sound but yours sounds more metallic in the video than mine does. Also mine only does it when it is idling from initial start up in the morning, once it warms up it goes away but this is a new noise that was not present before, and my car has close to 80k on it.
2009, E92, M3, AW Sold
2014 Cayman S