Internally Controlled Variable Displacement A/C Compressor (2.0L EcoBoost)

NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F).

The internally controlled variable displacement A/C compressor has the following characteristics:

a non-serviceable shaft seal.
a non-serviceable pressure relief valve installed in the rear of the compressor to protect the refrigerant system against excessively high refrigerant pressures.
Refer to SPECIFICATIONS for the appropriate refrigerant and refrigerant oil. This oil contains special additives that are required for the A/C compressor. The oil may have some slightly dark-colored streaks while maintaining normal oil viscosity. This is normal for this A/C compressor because of break-in wear that can discolor the oil.

The internally controlled variable displacement A/C compressor changes the swash plate angle using an internal valve, springs and linkage, controlled with refrigerant pressure in the compressor housing, to change the displacement of the A/C compressor.