The 2005 FEH with the Navigational system has a built in hybrid display that includes your MPG!
It will look something like this:
A scanguage II aftermarket hardware can do almost all of the same for a lot less money and his highly recommended. Owners manual can be replaced via a download at the Ford owners site. Replace the hybrid battery filter in the cargo area--as the dealership to show you as one way of determining their knowledge--on an annual basis and this can be done without tools!
Known Hybrid issues:
-the MECS pump
--motor electronic cooling system pump is known to start having issues around 50,000 miles. Check to see if this has been replaced. Otherwise, it might cost $238.00 at the dealership for the part. MOST COMMON ISSUE WITH VEHICLE. Item is located under the radiator on the passerger side. Shut down of vehicle operations can occur with this failure. Turn the key to on but not start. Get out of the inside of vehicle and go to front of vehicle and listen for the motor turrning/running.
-blend door issue at the drivers side cargo side split window. Deep inside this vent there is a door that opens and closes to allow outside to be pulled into the hybrid battery pack for cooling. This door sometimes becomes stuck in "closed" due to wear. Hybrid battery pack can overheat and vehicle not run correctly with this issue.
-coolant lines running to the hybrid battery can develop a leak, hybrid battery pack can overheat. A summer issue. Get down by the rear drivers side tire and look for two lines running on that side of the car.
-internal battery pack cooling fans fail--this can also cause the battery pack to overheat. This has been a recent development and may effect those with the mileage on your vehicle. Have the dealership run a code reader to ensure you do not have this issue.
Individual battery cells have proven to be extremely durable. The eCVT is also durable and I can only recall one owner reporting on a replacement which some of this felt was due to poor service techs at the dealership when the probelem was a MECS pump.