Daimler decides not to switch to R1234yf

After having examined real-life scenarios conducted using R1234yf, Daimler, the manufacturer of Mercedes-Benz cars, has announced its intention to stick to R134a instead of implementing R1234yf in its automobile air-conditioning systems.
After having examined real-life scenarios conducted using R1234yf, Daimler, the manufacturer of Mercedes-Benz cars, has announced its intention to stick to R134a instead of implementing R1234yf in its automobile air-conditioning systems.

In its tests, the company dispersed R1234yf at high pressure near hot components in the vehicle’s exhaust system, which simulates a serious head-on collision in which the refrigerant line was severed. The refrigerant was shown to be flammable in a hot engine compartment.

However, in the EU, R134a is now banned in new car models within the framework of the MAC Directive. Additional negotiations should take place.