Citroen Xsara Picasso Crankcase Ventilation Valve Problems

Problem with oil blowing out of breather hose and into air filter housing. Recently sailed through MOT emmision tests and compression test seem ok and no loss of power experienced. Suspected blockeage or need to replace positive crankca...

oil drips onto exhaust manifold Problem . Recently sailed through MOT emission tests and compression test seem ok and no loss of power experienced. Suspected blockage or need to replace positive crankcase ventilation valve. Can anyone advis...