Environment Minister Sigmar Gabriel has raised his voice to warn the German automotive industry against a “highly risky economic and technical adventure” with an untested, flammable, and toxic refrigerant 1234yf. Moreover, manufacturers should not expect the EU R134a phase-out schedule to change, but rather choose CO2 now as the most energy-efficient and safe alternative available.

In an interview with ACE, a leading automotive club representing the interests of 550.000 Germans, the Environment Minister Sigmar Gabriel has taken a clear stance in favour of CO
2 in the currently hotly debated question of which refrigerant to choose for future car air conditioning systems:
“Fact is: With CO
2 there is an environmentally friendly alternative to R134a available, and it has been proven in real life,” Gabriel stated. “The VDA has to know what it does to strengthen its credibility or not,” he referred to the clear commitment to CO
2 already issued in 2007 by all carmakers united in Germany’s automotive association VDA. The Environment Ministry would continue to support CO
2 (R744) as not only the most ecological option, but also that with a significantly higher energy efficiency, as measurements by the Federal Environment Agency have proved.
Untested chemical “high adventure”
Gabriel also issued a clear warning to the automotive industry to not use untested alternative refrigerants. The currently discussed flammable and toxic chemical 1234yf would be a completely new substance not yet fully investigated by public authorities for its ecological and health risks. As a consequence, manufacturers deciding for 1234yf would embark on a “high economic and technical adventure”, Gabriel concluded.
Gabriel: We will hold on to step-by-step phase-out from 2011
The Minister warned the German automotive industry against a further use of R134a in cars after 2011. According to Gabriel, the EU MAC Directive, prescribing the use of refrigerants with a Global Warming Potential of below 150 in future passenger cars, will not be changed. Carmakers should acknowledge that he would hold on to the agreed phase-out schedule starting in 2011, with a gradual ban of R134a until 2017. As a result, from 2011, the deprivation of type approval for cars using the climate-damaging refrigerant would be enforced as originally scheduled.
“I expect the automotive industry to not use the question of what a new model is and what not against our environment,” Gabriel expressed its dismay at the current discussion among carmakers of how to interpret the EU MAC Directive. He reminded manufacturers that the European Commission recently issued a legal clarification about the auto industry’s obligations. According to industry sources, European manufacturers had planned to take advantage of a loophole in the EU law that would have allowed them to use old MAC systems in otherwise new car models.