I've noticed I hear lots of rattling noise coming from driver window side when I'm going over bumpy roads. When I roll the window down however, the noise seems to be gone.

I've tried the auto down, it works fine, it comes back up fine too. But when the window is completely shut, I can hear the rattle and it's driving me nuts, what do I need to take a look at?

I took it to a Mazda dealership because I'm under full warranty and they said they would charge me est of 150 to take a look and that rattle noise were not covered after 12 month/12000miles or something, so I said F U and got out. But I really want this noise to be gone because it annoys me.

Any thought?

Sometimes hard to pinpoint where the noise is coming from. Window down the wind may just drown out the rattle. You may want to check the TSBs at finishlineperformance.com, there was one about rear wing window rattles and it is a pretty easy do it yourself as I recall. Maybe what you are hearing is coming from the rear window, just a thought.

What is the TSB?