LEMON Manuals: Even more car manuals for everyone
Home >> Audi >> 2020 >> S4 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Air Conditioning (Refrigerant R134A Servicing) (2 Of 2)) >> 87 Air Conditioning >> A/C System, General Information >> Refrigerant R134A Characteristics >> R134A Physical Characteristics

R134A Physical Characteristics

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

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).