yasou Vageli,had that problem on my 87 4000 csq ,the fire wall cracked around the mounting bolts for the slave cylinder,but most likely its the slave,try also checking that the master cylinder isn't low on fluid(below the outlet for fluid to slave) REGARDS, DINO 87 4KCSQ (MIT TURBO) 92 VW JETTA hers 89 Lancia Delta Integrale (back home) :(