2007 Mercedes-benz C280 4matic 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.

Bosch builds an infotainment system that just might not suck

As far as we've come with in-car infotainment and interfaces over the past decade or so, we still have a long way to go — as most current systems show. Whether it's high-end brands like Mercedes-Benz with its kludgy COMAND system, which we hope will be replaced with the MBUX platform revealed at CES, or more mainstream vehicles like Hondas (with their frustrating, knobless Display Audio interface), getting the kind of content and ease of use in the car that we're used to having on other connected devices is far too complex and sometimes costly. While Apple and Google have tried to ride to the rescue with CarPlay and Android Auto, respectively, they're limited solutions. No automaker or tech supplier has been able to deliver an easy, economical, flexible and non-distracting infotainment solution. But Bosch could be closing in on this elusive goal, given the digital cockpit concept demo I recently received at CES. Displayed in a Cadillac Escalade, the concept featured five interconnected color screens: one in the instrument cluster, two in the center console, and two more in the front-seat headrest for second-row passengers. The digital cockpit concept demo had cool features such as haptic-feedback touch-screen controls that created an edge-like feeling similar to a physical button, facial recognition to confirm driver credentials, and the intelligence to know the location of a phone in the car to lock it out to keep the driver from texting. The most significant aspect of the Bosch digital cockpit concept wasn't visible — but shows the company's vision for a future of seamless, convenient, cost-effective and safe in-car infotainment. It's powered by a single electronic control unit (ECU) that can simultaneously run multiple operating systems and also separates vehicle and infotainment controls for critical safety and cybersecurity reasons. Most modern cars can have as many as 100 separate ECUs, Philip Ventimiglia, product manager for Bosch Car Multimedia North America, explained at CES, and several just for infotainment functions. "The goal is to reduce that to about 10 so that we can save cost throughout the vehicle and enable new technologies," he added. "OEMs want to put more technology into cars, but it costs money," Ventimiglia said.

2014 Mercedes-Benz S500 Plug-in Hybrid for fat cats frugal with fuel

Judging by how long we waited to get a clear shot of the Mercedes-Benz S500 Plug-in Hybrid, you'd have thought hybrid cars were only driven by Terminators and that the technology arrived only 48 hours ago through a wormhole in the Mercedes stand. The newest member of the Mercedes-Benz S-Class hybrid band - joining the S400 Hybrid and S350 BlueTEC Hybrid, it hits notes like a 5.5-second sprint from standstill to 62 miles per hour, up to 19 miles of ion-powered running and uses three liters of gasoline per 100 kilometers in Europe (78.41 mpg US, but our mpg test cycle is different than their mpg test cycle).
The lump up front is a turbocharged, 3.0-liter V6, the lump in back - note the reduction in trunk space - is a pack of lithium-ion batteries that juice an 80-kilowatt electric motor. Other than having four drive options for controlling electric drive and battery usage, it's all S-Class all the time, with leather-covered everything and those mountainous thrones that bring to mind words like "Archduke" and "Papal."
You'll find our hard-earned gallery from the Frankfurt Motor Show floor above, and more words of information in the press release below.