On my sons 2015 Chrysler 200, there's an odd wobble sound when you close the door hard or if you push on the fender side to side. Sounds as if there is something shifting back and forth.
If it IS a loose heat shield, they should fix it under warranty. I hope the dealership actually looked at it and confirmed it was in fact a heat shield, and weren't just guessing. If you bought this new, through this dealer, and it's under warranty, then RIDE THEM till they fix it!
Probably a heat shield, have the dealer fix it.
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