Refrigerant R1234YF Critical Temperature/Pressure
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.
Up to a gas pressure of 32.82 bar (476 psi) (this corresponds to a temperature of 94.7 °C (202.46 °F)) the quantity of refrigerant evaporating from the surface equals the quantity returning to the liquid state as vapor particles condense. Above this temperature/this pressure there is no longer a boundary between liquid and gas.