Hi guys, about to purchase a CPO 2008 528i (US spec) with the standard seats. The car has the premium package and thus leather seating surfaces. My wife really wants heated seats, and I'm doing some research to gauge the level of difficulty of retrofitting. I know I could purchase universal retrofit kits on eBay. However, the hard part is obviously installing the pads into the seats. Is there a BMW service guide that someone can post about removing/replacing the front seat upholstery?

There's another post on the board about someone else doing this retrofit to an E61, but since the other poster's car was a EU spec E61, I need to get some more details about removing the seat covers before I commit. Thanks!!