The interior switch for my 2017 Boxster S hood and deck wasn't working, so I took it to the local dealer to fix under warranty. After taking it apart, they informed me that it had been damaged by water at some point, probably from a window cracked while raining, and that it wouldn't be covered under warranty. I just purchased it and its in excellent condition. Interior is perfect. How can they tell? Seems like a big stretch for me...