Noise from oil cover V50 D5 2,4 179hp

Can someone tell me where the valve for controlling the engine bearings is sitting with the engine? It probably hangs on the air filter box with the V70. But I don’t see it with me somehow. Think that the bearings are gone and thus he makes this kind of noise with the oil lid open. Then the turbo sucks / whistles extremely. Think any line is leaking. Where does it go long? Thanks for the help