Resurrecting this thread as I believe I may have located where the noise is coming from...
When the window is lowered, and the door trim pulled towards the driver, I can see a soft and sticky foam strip, which I assume serves as insulation between the B-pillar and the door frame.
I can see that on the driver side this strip is somewhat torn and does not provide good coverage. On the passenger side it is much neater and covers the metal frame. I have attached a photo. The photo was taken from above looking into the window cavity.
I did an experiment yesterday where I stuck a generous strip of general purpose window insulation around that area. Granted the strip is much thicker, it did seemingly cure that sensation of open window noise. When I removed the strip, the noise was back.
I am wondering if this is something I can get Alfa to replace. The car is still under warranty.
On a side note, is it normal that the door trim pulls off so easily? I mean I didn't need any tools or any excessive force. I just pulled it gently near the B-pillar side and it moved easily by a good 5 Cm. The photo is taken with it pulled.
URL=
My Library]
[/URL]