3.5L Gasoline Turbocharged Direct Injection (GTDI) and 3.7L Engines
WARNING: This page is about a different car, the 2012 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Block Heater, Electrical Connector And Bolt (3.5L GTDI And 3.7L Engines)