Sounds terribly annoying. Mine is all of 6 months old, so I can't really say - but so far so good. I have the multi-contour seats.
2014 BMW 550i xDrive MSport | Exec Package | LED | Luxury Seating | Driver Assist Plus | Cold Weather | Dynamic Handling | ACC Stop & Go | Rear Shades
2015 Audi R8 V10 | Brilliant Red on Black | S-Tronic | Carbon Sideblades | Carbon Trim | Full Leather | Sport Exhaust | Illuminated Doorsills | I-Pod | Contrast Stitching