Mercedes-Benz and the Future of R134a - Mercedes-Benz Forum

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post #1 of 7 (permalink) Old 11-07-2012, 07:54 AM Thread Starter
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Mercedes-Benz and the Future of R134a

On September 25, 2012, Mercedes-Benz issued a press release stating that it wishes to continue using R134a refrigerant in their passenger cars. R134a is planned to be phased out of use and replaced with the more climate-friendly refrigerant R1234yf. Numerous laboratory and crash tests by international vehicle manufacturers and independent institutions have previously shown R1234yf to be safe.

Daimler, the parent company of Mercedes-Benz, has carried out a series of additional tests as part of a new "real-life test scenario", developed in-house, that claim to go "above and beyond the legally prescribed requirements". As a result of these tests they have found that the new refrigerant can be proven to be flammable in a hot engine compartment if it escapes during a head-on collision. They have provided these findings to relevant authorities and due to their findings, they wish to continue using R134a refrigerant in their vehicles.

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post #2 of 7 (permalink) Old 11-07-2012, 08:08 AM
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I'll be interested to see how MB takes on the EPA in this regard.

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post #3 of 7 (permalink) Old 11-07-2012, 12:37 PM
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That certainly would be interesting to see. Especially if it is found to be flamable in certain situations. That very fact alone might be enough to hold off on the new refrigerant.
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post #4 of 7 (permalink) Old 11-12-2012, 09:02 PM
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I actually make r-134a, the EU has placed this burden upon all vehicle makers with no science behind their decision. Chlorine was the culprit behind the switch to r-134a because of its attack on ozone. R-134a has no chlorine, the chemistry behind it is fluorine. The USA has not officially placed a deadline on a replacement yet, however, pressure from the extreme and a seemingly appeasement mindset in the EPA will surely follow our friends from across the pond. The future replacement is difficult to make, therefore, delays may be a ways off regardless of what the extremist may want.

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post #5 of 7 (permalink) Old 11-12-2012, 09:31 PM
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What is the environmental problem with R134a? I thought it was the environmentally friendly replacement for R12.
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post #6 of 7 (permalink) Old 11-13-2012, 04:40 AM
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Originally Posted by Triggerhappy View Post
What is the environmental problem with R134a? I thought it was the environmentally friendly replacement for R12.
Not friendly enough for the environazi crowd, evidently.

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post #7 of 7 (permalink) Old 11-13-2012, 10:05 AM
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I thing the background behind those plays is the system.
EPA is government agency. They don't have to prove to be efficient, but still need to show they do something.
So they take a law, or requirement and change it, not necessary making sense with it.
Few years later they take the law or requirement again and change it again. If they don't come with new development, it happens that they change it back to the one from years before.
The R12 substitute is widely available with no license required.
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