Impreza WRX STI F4-2.5L Turbo (2008)
Refrigerant: Service and Repair
Refrigerant Charging Procedure
Refrigerant Charging Procedure
PROCEDURE
CAUTION:
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While working, make sure to wear protective goggles and gloves.
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Air in the cycle can cause insufficient air conditioning, and water in the cycle can cause clogging in the cycle (icing) and rust. To remove
this air and water content, use a vacuum pump to perform evacuation of the system before filling with refrigerant. By making the inside
of the cycle a vacuum, the water content will evaporate even at atmospheric temperatures, and can be removed.
1. Close the all valves of the manifold gauge.
2. Attach the low pressure side and high pressure side hoses to the service port of the vehicle.