Daimler agrees to use R1234yf to comply with EU regulations

Daimler had previously refused to use the new low GWP refrigerant R1234yf in its Mercedes car air conditioning systems due to concerns over its flammability. Its decision challenged the EU’s MAC Directive which banned the use of R134a and stipulated that all new car models must use a refrigerant with a GWP below 150 from 1 January 2013.