Leaking radiator fluid from rear

Hello, your Lincoln has auxiliary heating and air-conditioning. This allows heat or cold air to be blown in the back of the vehicle and uses an auxiliary heater core to produce heat back there. If you have a leak, it could be from the heater core or heater lines that go back there. Pressure testing of the cooling system and a physical inspection is needed. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops