I posted a thread regarding a windshield popping (rattling) sound couple of days ago and found couple of more threads regarding the same problem. Apparently, many of you guys are having the similar or the same problem. SO I was thinking like I should give INFINITI Canada's headquarter a call to see what they are gonna do about this problem since majority of the g37 owners are having this problem. I will let you guys know what they have to say about this.

 

Good luck bro. It's a known issue on more than the G. I believe the Infiniti FX or EX (can't remember which?) have the same problem. Infiniti = Epic fail on this problem!!

 

I started to have the same problem 6 weeks ago. My G37 coupe is 9 months old. My dealer changed clips, installed felt tape behind door speakers and center console. I picked it up temperature was 80 degrees, no noise. The next morning, temp 50 degrees, the noise was as loud as ever. Took it back and they removed dash, installed felt tape at every plastic on plastic junction, removed and tightened A pillars. It is somewhat better but I can hear it when vehicle is cold, rattles and pops. I have also begun to hear flex noise on the passenger when the vehicle is cold. I am not giving up, they must find a solution.