How do you replace a water pump on 08 mercury mariner?

To replace the water pump on a 2008 Mercury Mariner, first, ensure the engine is cool and disconnect the battery. Drain the coolant, then remove the intake manifold to access the water pump. Disconnect the hoses, unbolt the pump, and replace it with the new unit, making sure to use a new gasket. Reassemble everything in reverse order, refill the coolant, and check for leaks.