How much R143a should be put into empty system of 2007 Mercury Milan V6?

To recharge the air conditioning system of a 2007 Mercury Milan V6, you typically need to add approximately 1.5 to 2.0 pounds of R-134a refrigerant. It's essential to first check for any leaks and ensure the system is completely evacuated before adding refrigerant. Always refer to the vehicle's service manual for specific guidelines and use a refrigerant scale for accurate measurement. Properly monitor the system pressures while charging to avoid overfilling.