I have a new mazda 3. My sunroof was making a loud thumping noise when I open it. I recently took it to the service shop and they tried to put in a new sunroof but the noise is still there. They said it could have been an error when the factory stamped the roof. anyone had any issues like this or advice on what to do next? Thanks!

yes i have. if i vent my roof then go to close it or shut the car off, it shuts then opens and closesover and overuntill i press the other button to slide it back then ihave toclose it that way. it doesnt do it all the time, but its done it atleast 5 times in the last 3 weeks iv owned it. is the roof covered under warrenty?