2007 Mercedes Benz Cl-class on 2040-cars

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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 C-Class Coupe caught

The Mercedes C-Class Coupe is getting ready for a launch later this year and that means it has to come out and test its long, wide shoulders. Spy photographers caught it in camo around Stuttgart, and there's a bolt-on piece that makes it appear to have a BMW 6 Series-like trunk, but you can ignore that. Genuine changes include it being lower, wider, and "noticeably sportier" as we've been told, and the side mirrors are mounted on the doors instead of in the triangle between the A-pillar and beltline, where they are on the sedan. As with the new sedan, this coupe looks much more mature than the current model, and even under the camo you can see how the sculpting has been emphasized. Notice how the upper swage maintains its punch as it runs through the door handle and over the rear wheel, instead of dipping below the door handle and softening as it does on the sedan. It could get an intro at the Paris Motor Show, maybe even with the convertible by its side, and it's expected to go on sale in Europe later this year. Let your eyes have a taste in the spy shots above.

Mercedes-Maybach previews longer, more lavish S-Class ahead of debut

In some international markets, Mercedes-Benz's new 2021 S-Class will get Level 3 semi-autonomous technology, but chauffeur-driven buyers already enjoy full autonomy. It's for these individuals that Mercedes-Maybach, the firm's extra-luxury division, stretched the sedan's wheelbase and gave it an interior worthy of a private jet. Maybach said it developed its variant of the 2021 S-Class specifically for buyers with a chauffeur. It added seven inches to the sedan's wheelbase, and the additional sheet metal benefits those riding in the back. Standard executive rear seats give passengers a comfortable place to work or rest while they're being driven, and the list of new features added to the sedan include massaging calf rests as well as heating for the neck and shoulders. Although we haven't seen Maybach's S-Class yet, a preview image shows the optional two-tone paint — one of the company's hallmarks — and a chromed Maybach emblem. Up front, it will receive a specific grille with vertical slats instead of the horizontal ones worn by the standard S-Class. An additional serving of chrome-look trim will almost certainly further set the Maybach apart, but it will retain its predecessor's relatively subtle design. Specifications won't be announced until the model's unveiling. Mercedes-Benz confirmed it's phasing out V12s, though the big engine could return for one final round under the hood of the S-Class. Alternatively, Maybach may have chosen to surf the downsizing wave still sweeping across the industry by selecting a 4.0-liter V8. Mercedes-Maybach will introduce the 2021 S-Class online on November 19 at 2 p.m. Stuttgart time, which is 8 a.m. in New York City and 5 a.m. in Los Angeles. Deliveries are scheduled to start during the first half of 2021. When it lands, the sedan will join Maybach's variant of the GLS in showrooms across the United States. Related Video: