Thanks
@maglianera!
Noticed a few months back the noise when tapping on my front fender liners. I had been meaning to address them. I wasn't sure if it was them or the AC making the noise. The stereo masked that noise.
We were on a 275-mile RT the other day and I could hear the noise on the highway going 60-70. I taped them tight with Gorilla tape the next day. We took a 75-mile trip today and the noise was gone.
I'm in the small percentile that notices every noise. Everything I've done to the car to mitigate extraneous noise has helped. I added the rubber band around the glass roof and door seals. Using the dB Meter app for iOS I'm measuring 63 decibels on a good highway asphalt with no side wind. I tried several sound apps and they all measure different levels when used simultaneously, so dB Meter is my constant. It may not be accurate, but as long as it's consistently inaccurate I have a baseline.
I had more wind noise coming from passenger side as new. I had my black triangle glued down and the seal there had a bubble there. A range address those and he adjusted seal under the B-pillar. Those fixes made a difference to lessen wind noise. But it still was not as quiet on that side as the driver side.
My passenger door was also not flush to the car and raised a bit. I had the SC adjust the door. They got it close but still obviously off.
A few weeks ago the SC took another crack at adjusting my passenger door. After the 2nd adjustment the door looks good and I noticed less wind noise from that side. I didn't expect that as the door was more an OCD thing.
I've done other things to the car to address fit and finish issues. Everything has made a difference. My M3 sounds and feels so much more solid and quite compared to the day I took delivery.