MKZ AWD V6-3.5L (2008)
6. Remove the TXV fitting nut and disconnect the fitting.
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Discard the gasket seals.
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To install, tighten to 15 Nm (11 lb-ft).
7. Release the heater hoses clamps and disconnect the hoses from the heater core.
8. Remove the 6 heater core and evaporator core housing nuts.
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To install, tighten to 9 Nm (80 lb-in).
9. Remove the heater core and evaporator core housing.
10. To install, reverse the removal procedure.
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Install new gasket seals.
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Lubricate the refrigerant system with the correct amount of clean PAG oil.
11. Fill the engine coolant level.
12. Evacuate, leak test and charge the refrigerant system.