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.

Mercedes-Benz introduces new heavy security M-Class Guard model

Mercedes-Benz has unveiled a new addition to the company's line of personal security vehicles. The M-Class Guard features bullet-proof side windows made with special laminated glazing and a polycarbonate inner layer to protect occupants from shards of glass. Mercedes says the M-Class Guard meets protection level VR4 according to the Bullet Resistant Vehicles 2009 standards, based on testing from the independent Ulm-based Ballistics Bureau, which means it can withstand .357 Magnum and .44 fire from multiple angles. It can also stand up to the DM51 hand grenade when equipped with optional floor armoring. Why skimp?
Buyers looking for protection from the world's literal slings and arrows can opt for the ML350 BlueTEC with its 258 horsepower 3.0-liter turbodiesel engine. With 457 pound-feet of torque, the oil-burner should have no trouble hustling the privileged class about. Of course, the ML500 offers a bit more punch courtesy of a 4.6-liter twin-turbo V8 with 408 horsepower and 442 pound-feet of torque. Prices start at 105,050 euros for the diesel and 118,650 euros for the V8. You can check out the full press release below for more information.

Missouri Mercedes dealer offering free Smart with every SLS AMG purchase

The Mercedes-Benz SLS AMG GT is an exquisite sports car that probably needs no help flying off dealer lots, even with a starting price of almost $200,000, but Mercedes-Benz of Kansas City has come up with an interesting incentive to sweeten the deal. For buyers who purchase a new SLS AMG from dealer stock before the end of the year, the dealership is throwing in a new Smart Fortwo from its inventory at no charge... with a required coupon no less.
In addition to being a great tactic to get a little free press, the spare car also makes sense as an alternative to the SLS, which measures more than 15-feet long - almost twice the length of a Fortwo - and has a 563-horsepower engine that sucks down gas at the rate of 13 miles per gallon in city driving (and even that's provided you don't give in to the devil on your shoulder). Plus, at the end of the day, this really isn't that big of an incentive. Being given a slow-selling $12,490 car for the purchase of a model starting at $199,500 represents about a six percent incentive, which is along the lines of a $1,900 rebate for a $30,000 car.
To get the free Smart, just visit the Mercedes-Benz of Kansas City Facebook page, redeem the coupon and then go buy yourself a new SLS AMG. Congratulations!