removed my central locking pump from the car. electrically it works (I can hear motor humming when I use remote key), but the graphite disk inside is broken. I believe it is all you need to fix the pump. Part number is 8L0 862 257 N. $60 including shipping. Or best offer. Well, if anyone one to sell me graphite disk I will keep the pump. anyway, PM me. Don't post response straight to forum cause I have no too much time checking it. I'll try to make picture if anyone wants to see it.
Thanks