Just a quick tip given to me by my pro valeter friend To bring alcantara seats back to life and looking new run a razor blade over them gently Bic mach3 your choice just be careful Will post before and afters once finished
An old Philishave is supposed to work well also ;)
When I first heard this trick years ago I struggled to believe it but it really does work doesn't, great. Another way is with sandpaper, just gently drag it over the surface, like 400grit will do.
I found a clothes shaver to work the best, no risk or cutting the seats either. http://www.ebay.co.uk/itm/LARGE-CLOTHES-BOBBLE-FLUFF-LINT-REMOVER-SHAVER-FUZZ-OFF-FABRIC-JUMPER-CARPET-/201359369768?pt=LH_DefaultDomain_3&hash=item2ee1f42628
Electrical shaver works a treat. Use a good quality upholstery cleaner (BMW do a good one) first to lift the pile then once bone dry go over a couple of times with shave & voila, new looking alcantara!