July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Oil Flow Control Solenoid Valve: Disassembly
WARNING: This page is about a different car, the 2008 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
Remove the 2 mounting bolts and remove the oil return cover and gasket.
Remove the mounting bolt and remove the oil flow control solenoid valve.
Fig 1: Identifying Oil Flow Control Solenoid Valve And Mounting Bolt