I just picked up a 2005 M3 with only 55K miles. I'm about to gut the interior in preparation for a race car build and the whole of the interior is for sale (this post is front/rear seats, door panels only). I've only had the car for a few days but on the drive home it appears the seats are fully functioning, including the heated seats. The pictures are from two days ago. I will start removing the interior this weekend and post any additional pictures as needed/requested.
https://drive.google.com/file/d/1Eem...ew?usp=sharing
https://drive.google.com/file/d/1lXy...ew?usp=sharing
https://drive.google.com/file/d/1Sfn...ew?usp=sharing
https://drive.google.com/file/d/1dwn...ew?usp=sharing
https://drive.google.com/file/d/1RfV...ew?usp=sharing