2008 Mercedes-benz C300 4matic Luxury Sedan 4-door 3.0l on 2040-cars

Auto blog

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.

On Location at Mercedes-Benz Van Camp in the Rocky Mountains

Camping high in the Rocky Mountains as spring gave way to summer may not seem like the obvious way to test out a work van, but that's how we sampled the 2016 Mercedes-Benz Metris. Our drive was based in Dunton Hot Springs and Cresto Ranch, CO, nestled high in the Rocky Mountains. Both were gorgeous and dripping with history. Since their rough-hewn origins they've been converted into an upscale camping experience. We spent a couple nights in Cresto Ranch, an old cattle outpost near the Dolores River. Our 'tent' was lavishly furnished, complete with a shower, desk, and comfortable bed. Glamor camping is in vogue, and this was 'glamping' at its finest. Most of the Mercedes activities started at Dunton Hot Springs, a former mining town with tents and log cabins remade into an even larger-scale glamping site than Cresto Ranch. The hot springs beckoned, but glampers could also enjoy massages or just soak in the soaring forests surrounding the site. The only downside: With an elevation around 8,700 feet above sea level, we found ourselves occasionally light-headed. It was a fun couple of days in the Rockies, on the road and at the campsite. Watch the video above for the complete experience, and read the review here.

Chris Harris and David Coulthard wring out a Mercedes Fintail at the N"urburgring

If there's one thing we've learned from the latest video from Drive, it's that the combination of Chris Harris and David Coulthard will produce some very quotable moments. Take this exchange, for example.
DC: "We are by some way the slowest."
CH: "But we're in a class of three cars, apparently."