Daimler sounds alarm on new AC refrigerant, may be flammable

Just like the R-12 refrigerant that was phased out of cars in the 1990s, it appears R-134a is on its way out, as well, in favor of the more environmentally friendly R-1234yf. While R-134a definitely isn't as harmful to the ozone as R-12 was (which led it to be banned), the newer R-1234yf has a far lower global warming potential than the refrigerant currently used. This sounds good for the environment and all, but Daimler AG may have just stumbled upon an issue with this refrigerant that could throw a wrinkle into the switch plans.

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