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VW joins Daimler's protest of new A/C refrigerant as EU deadline for compliance passes

The case of Dupont and Honeywell's refrigerant R-1234yf is doing the exact opposite of keeping things cool. The two chemical companies have spent years and hundreds of millions of dollars developing R-1234yf to replace R-134a, the new refrigerant shown to be 99.7-percent kinder to the environment than the one it is meant to succeed. Part of that development has been years of testing by governments, outside safety agencies and automakers to approve the chemical for use in cars. It passed the protocols necessary for the European Union to declare that new and significantly revised cars from 2013 onward needed to use R-1234yf, and mandated that every car as of 2017 must use it.
Enter Daimler AG. The automaker created a head-on collision test with a B-Class at their Sindelfingen test track that would lead to the pressurized refrigerant being sprayed on the engine. The result in 20 out of 20 test was that the refrigerant burst into flames as soon as it hit the hot engine, while Daimler says that R-134a does not catch fire in the same test. Another unexpected result of the R-1234yf test was the release of hydrogen flouride, a chemical far more deadly to humans than hydrogen cyanide, emitted in such amounts that it that turned the windshield white as it began to eat into the glass.
Said a Daimler engineer in a Reuters piece, "It was scarcely believable. The most complicated lab tests conducted using the most sensitive measuring instruments around found nothing and all we do is drive a car around a couple of times, open a tiny hole in the refrigerant line and the next thing you know the car is on fire." So Daimler said it wouldn't use the refrigerant, and it recalled the cars it had already shipped with R-1234yf.

Mercedes shows off more of the S-Class Cabriolet

Mercedes has been very much into teasing lately, providing various kinds of peeks at the recently revealed Mercedes-AMG C63, the coming 2017 E-Class sedan, and the S-Class Cabriolet. We've seen the least of that latter car but it could be the one we know the most about. The sixth member of the S-Class family after the standard sedan, the long-wheelbase sedan, the Maybach models, the Pullman, and the coupes, this one puts a fabric top on that two-door model and then lets owners take it off. After the sketched rendering from two weeks ago, this latest photo from Mercedes shows us pretty much what we're going to get, and since we're huge fans of the coupe it looks like we'll be huge fans of this, too. It will certainly come heaped with techno gizmos like heated armrests, and a set of Burmester speakers in the tonneau cover. In case you're wondering, those screen-looking things behind the front seat headrests are fans for the Airscarf neck warming system. The press release below has a bit on the history and demise of four-seater Mercedes droptops, which helps remind us why we should care about the trim being resurrected 45 years later. Related Video: The new S-Class Cabriolet: A star returns Stuttgart, Aug 25, 2015 - Coveted dream car of the 1960s meets star of the 2015 International Motor Show in Frankfurt: the new Mercedes-Benz S-Class Cabriolet is following in the tradition of the open-top S-Class (model series 111 and 112) from the period 1961 to 1971. Unmistakeable, exclusive design, fine materials with maximum high-class appeal in the interior and state-of-the-art technology in the S-Class characterise the concept behind both cabriolets. "After 44 years we can again offer friends of our company an open variant of the S-Class. The new S-Class Cabriolet symbolises our passion for individual and timelessly exclusive mobility, which we share with our customers", remarks Ola Kallenius, Board Member of Daimler AG, Mercedes-Benz Cars Sales. With the new S-Class Cabriolet Mercedes-Benz is setting itself the standard of building the most comfortable cabriolet in the world. When it comes to climate comfort the enhanced automatic wind protection system AIRCAP, the AIRSCARF neck-level heating system, the heated armrests, the seat heating also in the rear plus the intelligent fully automatic climate control ensure that this is indeed the case.

Mercedes GLE-Class shows a new face for the luxury crossover in NYC

Segments don't get much hotter than luxury crossovers at the moment, and that makes for some perfect timing for Mercedes-Benz to unveil the GLE-Class at the 2015 New York Auto Show. As a replacement for the M-Class, the new model offers a more traditional looking alternative to the styling of its swoopy sibling, the GLE-Class Coupe. Mercedes' designers crafted a nose for the GLE that gives it a strong family resemblance to the Coupe, but the rest of the shape bears a chunky, more utilitarian appearance. Elsewhere, the new model sticks with the thick C-pillar and wraparound rear glass of the outgoing M-Class but with sharper edges for a slightly more muscular look. Stepping inside, occupants find all of the German luxury brand's latest styling cues. Mercedes is making a major commitment to adding more plug-in hybrids to its vehicles in the coming years, and the GLE is one step in that process. The lineup includes the GLE550e 4Matic that pairs a 3.0-liter, twin-turbo V6 with electric assistance to produce a total of 436 horsepower and 479 pound-feet of torque. The German brand isn't going entirely green, though, and the range also includes the Mercedes-AMG GLE63 and GLE63 S, powered by a twin-turbo 5.5-liter V8 that produces 550 hp or 577 hp, respectively. Check out the photos above from the show floor to get a full look at this upscale crossover before it arrives at dealers later this year.