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Mercedes forced to lower MPG ratings on two C300 models *UPDATE

*UPDATE: Donna Boland, manager of corporate communications at Mercedes Benz USA, told AutoblogGreen that the sticker change only applied to around 500 C-Class vehicles on dealer lots, since a new C-Class came out in late August. "About 500 are left in the United States, and we've relabeled them," she said. First Hyundai, then Ford and now Mercedes-Benz. The list of companies that have had to change their vehicles' official EPA fuel economy ratings has just grown by one with the announcement that the 2013 and 2014 C300 4-Matic FFV and PZEV versions need to have their EPA labels adjusted. The changes aren't massive, at most one mile per gallon. The changes aren't massive, at most one mile per gallon, but they are lower than before. The FFV version goes from 20 to 19 mpg in the city while the PZEV drops one mpg across the board from 23/20/29 combined/city/highway) to 22/19/28. The FFV's combined (22) and highway (27) ratings stay the same. Other Mercedes vehicles that were spot checked turned out to have accurate labels. The problem, which is reminiscent of the issues that Ford had with the Total Road Load Horsepower, was that "Mercedes underestimated the impact of aerodynamic drag and tire rolling resistance known as 'road-load,'" the EPA said in a statement you can read below. We have asked Mercedes for more information on the issue but have not yet heard back. We're not sure how many vehicles the EPA is retesting (or asking to be retested), but the agency says that the C300 models were evaluated again by Mercedes "with EPA oversight" and the EPA did its own tests at the National Vehicle and Fuel Emissions Laboratory in Ann Arbor, MI. Christopher Grundler, the director of EPA's Office of Transportation and Air Quality, said that the EPA knows that the changes are minimal, but that, "it is important that our oversight system is producing the correct results because even one MPG matters to consumers." In case you need a primer in the recent history of companies adjusting their EPA numbers, check out this and this. Based on today's news, we won't be surprised to hear more changes are coming. EPA Requires Mercedes-Benz to Correct Fuel Economy Labels for Two C300 4-Matic Vehicles WASHINGTON - The U.S. Environmental Protection Agency (EPA) is revising estimates for two 2013/2014 Mercedes C300 4-matic vehicles, the FFV and PZEV, to ensure consumers are given accurate fuel economy values.

Mercedes-Benz engines with 48-volt systems coming in 2017

As part of a big green push announced yesterday, Mercedes-Benz is jumping into the world of 48-volt power. The company will launch a new family of efficient gasoline engines next year and will begin rolling out 48-volt systems with it, likely in its more expensive cars first. Mercedes will use the 48-volt systems to power mild-hybrid functions like energy recuperation (commonly called brake regeneration), engine stop-start, electric boost, and even moving a car from a stop on electric power alone. These features will be enabled through either an integrated starter-generator (Mercedes abbreviates it ISG) or a belt-driven generator (RSG). (RSG is from the German word for belt-driven generator, Riemenstartergeneratoren. That's your language lesson for the day.) Mercedes didn't offer many other details on the new family of engines. There are 48-volt systems already in production; Audi's three-compressor SQ7 engine uses an electric supercharger run by a 48-volt system, and there's a new SQ5 diesel on the horizon that will use a similar setup with the medium-voltage system. Electric superchargers require a lot of juice, which can be fed by either a supercapacitor or batteries in a 48-volt system. Why 48-volt Matters: Current hybrid and battery-electric vehicles make use of very high voltages in their batteries, motors, and the wiring that connects them, usually around 200 to 600 volts. The high voltage gives them enough power to move a big vehicle, but it also creates safety issues. The way to mitigate those safety issues is with added equipment, and that increases both cost and weight. You can see where this is going. By switching to a 48-volt system, the high-voltage issues go away and the electrical architecture benefits from four times the voltage of a normal vehicle system and uses the same current, providing four times the power. The electrical architecture will cost more than a 12-volt system but less than the complex and more dangerous systems in current electrified vehicles. The added cost makes sense now because automakers are running out of ways to wisely spend money for efficiency gains. Cars can retain a cheaper 12-volt battery for lower-power accessories and run the high-draw systems on the 48-volt circuit. The industry is moving toward 48-volt power, with the SAE working on a standard for the systems and Delphi claiming a 10-percent increase in fuel economy for cars that make the switch.

Daimler CEO says nobody is making money on EVs right now

What do you charge for a vehicle you're going to lose money on? If you're Mercedes-Benz and the vehicle in question is the B-Class Electric Drive, you offer it for lease for just 399 euros ($498) a month with a down payment of 8,473 euros ($10,582). If Daimler was going to price it honestly, it seems, the number would have to be a lot higher. "Nobody today is making a battery-powered vehicle that's economically viable." – Daimler CEO Dieter Zetsche That's according to Daimler CEO Dieter Zetsche, who spoke to reporters in Spain recently and said that, "You can reasonably say that nobody today is making a battery-powered vehicle that's economically viable in its own right. Manufacturers will not see a return within a reasonable time on the billions they're investing now." There are ways to make money in EVs, of course. Just ask Daimler, which recently sold its stake in Tesla for a cool $780 million. Zetsche has some EV-critical company in executives like Fiat Chrysler CEO Sergio Marchionne, who has said his company loses over $10,000 on each Fiat 500E it sells. Other automakers – e.g., Tesla, Nissan – are much more positive about their financial bet on EVs, but no one is opening all their books to the public to prove this. Tesla, which worked with Mercedes on the B-Class ED, will have an earnings call with investors later today, so perhaps we'll learn something new in a few hours. The B-Class ED lease deal is for 36 months, based on an MSRP of 39,151 euros ($48,895) in Europe, including the 19 percent VAT. You can read more in the press release below. Commercial release of Mercedes-Benz B-Class Electric Drive: Local emission-free driving from ˆ399/month Stuttgart, Nov 03, 2014 With its high-torque electric motor, the B-Class Electric Drive delivers lively and superior driving pleasure – with zero local emissions. The B-Class Electric Drive is now available to order, with deliveries set to start before the end of 2014. Prices start at ˆ39,151[1]. The B-Class Electric Drive can be leased through the Mercedes-Benz Bank from ˆ399 a month[2]. Further information on the full range of tailor-made leasing and financing offers as well as specific pricing examples are available at http://www.mercedes-benz-bank.de. Quiet and local emission-free driving is ensured by a 132 kW electric motor, which, as is typical of an electric drive, delivers its maximum torque of 340 Nm right from the start. The result is noticeably powerful acceleration from rest.