What can I use to scrub down a leatherette, tan sport interior in an e46?
The seats and door panels have some drak stains from the previous owner and I'm not sure what I can use to get them out without damaging the interior?

Also, how can I remove a blue pen mark on the door panel?

Thanks

Use Lexol cleaner on leatherette.
Try gently rubbing your ink spot with Magic Eraser.

http://s2.thisnext.com/media/230x230_no_border/88BF8621.jpg

seems magic eraser is the solution to my problem as well.