My E55 has an alcantara headliner. The day I got the car driving home I peeled off the airbag stickers that are attached to the underside of the sun visor. Like a fool, reached across to remove the passenger side and a little bit of the sticker stuck. So, instead of waiting till I got home, I started rubbing, picking, etc. and now I got a nice little black stain that I can't get off. There is actually a site for alcantara. Do a google. There are cleaning instructions for furniture, cars, etc.
