Just wanted to put this out there to let everyone with an f4i know about this little problem I was having. The mechanism that actually locks the seat to frame is attached to the frame by a screw. About a month ago I couldn't close my trunk, I finally realized that the screw was loose and the locking mechanism was loose. Finally after about 3 weeks of dealing with it I took it apart and the threads from actual mechanism came out as I backed the screw out :doublefli . There were some threads left so I put some locktite on there and so far so good. Just an FYI for everyone.