VW Using CO2 in Air Conditioning Systems
VW says CO2 as a refrigerant — also known as R744 — has lower greenhouse gas effects than conventional refrigerants, with a GWP (Global Warming Potential) value of 1, or 99.3 percent below the European Union-specified GWP limit of 150. The German automaker says the technology will be rolled out progressively over its entire vehicle fleet.
German media sources have reported four other carmakers — Daimler, Audi, BMW and Porsche — will also switch to CO2 technology in mobile air conditioning systems as an alternative to R-1234yf.
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