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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 33 (AIR CONDITIONING R134a (GENERAL INFORMATION) (COUPE)) >> 87 Air Conditioning >> A/C System, General Information >> Refrigerant R134A Characteristics >> R134A Physical Characteristics

R134A Physical Characteristics

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The Vapor Pressure Curves Of R134a And Other Refrigerants Are Sometimes Very Similar, Therefore It Is Not Possible To Make A Certain Distinction Solely By Pressure.

With R134a, The A/C Compressor Is Lubricated With Special Synthetic Refrigerant Oils, For Example, PAG Oils (Polyalkylene Glycol Oils).