How do you replace expansion valve on 2004 Subaru Outback?

To replace the expansion valve on a 2004 Subaru Outback, first, ensure the vehicle is off and the A/C system is fully discharged. Remove the dashboard or access panels as necessary to reach the A/C components. Disconnect the refrigerant lines from the expansion valve, remove any mounting bolts, and take out the old valve. Install the new expansion valve in the reverse order, securing it properly and reattaching the refrigerant lines before reassembling the dashboard. Always check for leaks and recharge the A/C system afterward.