I only notice this when I am driving with the windows open. At the entrance to my development, there is a patch with cobblestones, it's a slight left hand turn and when I ride over it, I hear a strange light rattling sound.. it comes from the right front wheel area. I have brought it in to the service center, and they found nothing and could not replicate the sound. during an annual inspection I had them go through the suspension. The brakes are new as of about a year ago. The car has 103,000 miles on it now. Model S p85 2014 vintage. it is a rattle sound.. as if something is loose. I have had them look for it more than once, when my car is in. It was a CPO car so front end parts were already replaced 3 years ago. when they did the brakes, they didn't see anything either, . What could it be? what else would be rattling up there?