Hey jonmon, I don't have .pdfs for them and just took screen shots when I came across anything dealing with the heated seats.
Here are some of the other links that I had found when I was on my search. Looks like you have the same X3 as me (2014 F25 35i) so these should be good. Not sure if you already have them or not but here's the links anyway.
http://www.bimmerpost.com/goodiesfor...nformation.pdf
https://x3.xbimmers.com/forums/showthread.php?t=803813