I have a niece with a 2011 Edge, 160,000 miles, 3.5 liter engine so she has the internal water pump. She asked me about what kind of services she needs at 160 K? Her records show a major service at 90,000 miles. Besides having the PTU replaced they changed power steering fluid, brake fluid, rear differential, trans flush and spark plugs. Interesting that they did not do a coolant change. I advised her to have the coolant changed. So should she spend $1000+ to have the water pump replaced? They plan on keeping the car for their soon to be 16 yo son so having this vehicle for another three or four years is likely.