NHTSA Complaint #11565426 — 2023 AUDI Q8

There is a pulsating/fluttering noise coming from the rear passenger side near side of the vehicle. Got the vehicle in July of 2023 and reported the issue in August. Dealership confirmed and performed TSB 2067759/2 (Installed 10 rubber insulator sleeves). This did not fix the problem. I noticed it is loudest when the fuel tank is low. It can be heard at idle but tends to get louder while moving slow at slow speeds (forward or reverse). The tank was full when I brought it in for the August service. Went back in October when I realized it is significantly louder when the fuel is low. Dealership replaced the activated charcoal filter pipe and the fuel tank. This did not eliminate the problem.