Mercedes is recalling more than 400 2013 SL class vehicles because a/c refrigerant may catch on fire during a collision.

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DISCUSSION

kusabisensei
KusabiSensei - Captain of the Toronto Maple Leafs

Well, if they stuck with R-134a, they wouldn't have this problem...R-134a isn't flammable.

But noooooo....we had to use a new refrigerant with an NFPA 704 flammability score of 4.