Mercedes Benz not satisfied with new R1234yf refrigerant to continue with R134a variant
It is this refrigerant that has found favor with international auto companies and has proved to be not only safe but climate friendly as well, besides the fact that it has been put through a series of lab tests and crash tests by international vehicle manufacturers. The new R1234yf has also been put to tests but the R134a refrigerant did not result in ignition and it is for these high safety reasons that Mercedes Benz has shown its intentions to continue to use this refrigerant in all their vehicles.
R134a is also known as Tetrafluoroethane and is from the family of HFC refrigerants. It is currently used widely in air conditioning systems in new automobiles and is safe for normal handling as it is non toxic, non flammable and non corrosive.