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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.

2016 Mercedes S-Class Cabriolet airs out the good life

Mercedes-Benz has finally dropped the top on its range-topping model, the long-lived S-Class. The new cabriolet takes the handsome, sophisticated good looks of the hardtop model and adds a three-layer canvas roof that can be lowered or raised in just 20 seconds. On top of the unlimited headroom, the new S-Class Cabriolet adds Mercedes' popular AirScarf neck-warming system, as well as a new nine-speed automatic transmission on the S550 model. As we previously reported, the S63 AMG will continue to use the seven-speed AMG Speedshift transmission. Both cars match their hardtop and four-door counterparts in terms of output. On top of AirScarf, Mercedes also fitted the Thermotronic climate control system. It uses 12 sensors and 18 actuators to measure a wide array of metrics, all in the pursuit of keeping the cabin temperature at the driver's ideal temperature. Scroll up for our full gallery of photos of the new S-Class Cabriolet from the floor of the 2015 Frankfurt Motor Show. We also have the official press release from Mercedes down below. Check them out. The new Mercedes-Benz S-Class Cabriolet Open-top luxury Stuttgart. The new S-Class Cabriolet is the fourth variant of the current S-Class family in the U.S. market and the first open-top flagship four-seater from Mercedes-Benz since 1971. It offers a distinctive, sensual and exclusive design, the cutting-edge technology of the S-Class and a comprehensive warmth and wind protection concept which includes intelligent climate control for convertibles. The elegantly sporty model will have its world premiere at the Frankfurt International Motor Show in September. Also on display in Frankfurt will be a superlative dream car from Mercedes-AMG in the guise of the S63 4MATIC Cabriolet. Its 5.5-liter V8 biturbo engine offers an output of 577 hp and peak torque of 664 lb-ft, AMG Performance 4MATIC all-wheel drive with rear-biased torque split as standard and acceleration from 0 to 60 mph in 3.9 seconds. "After 44 years we are once again able to offer Mercedes aficionados an open-top car in the S-Class. The new S-Class Cabriolet symbolizes 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. The new S-Class Cabriolet is exceptionally rigid.

China's BAIC looks to invest in Daimler

Daimler and Beijing Automotive Group (BAIC) are already intertwined in China. Daimler is a 12-percent shareholder in BAIC Motor, the third largest shareholder in the passenger-car division of BAIC. They have a joint manufacturing venture Beijing Benz in which BAIC is the majority partner by one percent, a sales joint venture Beijing Mercedes-Benz Sales Service Co. in which Daimler is the majority partner by one percent, and Daimer says, "BAIC is our most important partner in China." Beijing Benz is ten years old this year. They'll become even closer if talks between the two concerning BAIC taking "a major stake" in the German conglomerate come to anything. Reuters reports that the two are in talks now, with BAIC Chairman Xu Heyi saying it should be resolved one way or another by the end of this year. If they agree, the China-based, Hong Kong-listed company will join Renault-Nissan and the Kuwait Investment Authority as Daimler's top shareholders. Some China analysts see a potential Daimler investment as a coup for BAIC, similar to BAIC's 2009 purchase of old Saab platform, engine, and transmission technologies, that would give it access to technologies it wouldn't have to develop on its own and hastening the development of its own cars. A deal is also seen as potentially opening up export possibilities for the Chinese company. Other analysts aren't sure that BAIC would get any useful technology, noting that that last deal between the two gave BAIC the outdated E-Class platform, but none of Mercedes' headline tech. If a deal is done, BAIC will join Dongfeng Group and SAIC as Chinese automaker investors in western automotive companies.