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VW decides against active-cooling system for e-Golf lithium battery

When the 2015 VW e-Golf was introduced at the LA Auto Show last year, VW said it would come with a water-cooled battery. During the Detroit Auto Show, when the car was trotted out again, VW released a new press release that stripped out the "water-cooled" language, but this change went unnoticed. During a recent VW event in Germany, a friend from Green Car Reports realized that the battery on display did not seem to have any water-cooling mechanisms. That set us off on a bit of a sleuthing and we have now learned that VW is not going to include any active cooling in the upcoming e-Golf. In fact, the company is entirely confident that this car - because of what it's designed to do - doesn't need it. "The need for a cooling system wasn't there" - VW's Darryll Harrison VW has been working on an electrified Golf for ages now, and so changes to the plan are to be expected. But battery cooling is vitally important not just to keep the car operating properly but because when things get too hot, there can be serious public relations problems. Nissan began testing a new battery chemistry for the Leaf in 2013 after an uproar from warm-weather EV drivers in Arizona who were experiencing worse-than-expected battery performance. The Leaf has always used an air-cooled battery, which is another way to say that there is no active cooling system (more details here). Tesla CEO Elon Musk once said this approach is "primitive." So, why is VW following the same path? We asked Darryll Harrison, VW US's manager of brand public relations west, for more information, and he told AutoblogGreen that VW engineers discovered through a lot of testing of the Golf Mk6 EV prototypes, that battery performance was not impacted by temperatures when using the right battery chemistry. That chemistry, it turns out, is lithium nickel manganese cobalt oxide (NMC) in cells from Panasonic. These cells had "the lowest self-warming tendency and the lowest memory effect of all cells tested," Harrison said. He added that VW engineers tested the NMC cells in places like Death Valley and Arizona and found they didn't warm very quickly either through operation, charging (including during fast charging) or through high ambient temps. "The need for a cooling system wasn't there," Harrison said.

Regulators consider adding more carmakers to Takata recall

Volkswagen's diesel emissions scandal has been getting a lot of press recently, but the Takata airbag inflator affair could be grabbing headlines again soon. According to Bloomberg, the National Highway Traffic Safety Administration is contemplating an expansion to the campaign that could add seven automakers to the 12 already affected. They are Jaguar Land Rover, Mercedes-Benz, Spartan Motors, Suzuki, Tesla, Volvo Trucks, and VW Group. To be clear, there's no recall for any of these automakers, yet. The government is simply asking for a full list of vehicles that each of them have with Takata-supplied inflators containing ammonium nitrate propellant. The agency is concerned this substance could play a roll in the ruptures. "NHTSA is considering not only whether to issue an administrative order that would coordinate the remedy programs associated with the current Takata recalls, but also whether such an order should include expansion of the current recalls," the letters say. All seven can be viewed, here. From a report supplied by Takata, the government already knows that the company supplied 887,055 inflators with ammonium-nitrate propellant to VW and 184,926 of them to Tesla. In an incident during the summer, a side airbag allegedly burst in a 2015 VW Tiguan. In early September, NHTSA put out a revised report that there were 23.4 million inflators to be replaced in 19.2 million vehicles in the US. An earlier accounting from the agency had about 34 million of the parts in 30 million cars. High humidity is still believed to be among the biggest risk factors for the ruptures. Although, if ammonium nitrate also gets the blame, some already recalled models might need to be repaired again. Related Video:

Volkswagen Golf, Ford F-150 named 2015 North American Car and Truck/Utility of the Year

Congratulations, Volkswagen Golf/GTI and Ford F-150. You've just been named the 2015 North American Car and Truck/Utility of the Year, kicking off the first press day of the Detroit Auto Show. The Golf faced some seriously stiff competition from its runners-up, the Ford Mustang and Hyundai Genesis. But the Golf has been a highly awarded vehicle since its launch, including recently being named Motor Trend's Car of the Year. As for the Truck/Utility award, it wasn't immediately clear that the aluminum-bodied Ford F-150 would win the North American honor, topping the Chevrolet Colorado and Lincoln MKC. The Chevy, after all, has been widely praised since arriving this fall, including taking home MT's Truck of the Year award. In 2014, Chevrolet had a sweep of the NACTOY awards, with the Corvette Stingray and Silverado taking top honors. Here's a look at the 2015 North American Car and Truck/Utility of the Year voting breakdown. As you can see, it wasn't exactly neck and neck. Car of the Year Volkswagen Golf/GTI – 256 points Ford Mustang – 204 points Hyundai Genesis – 110 points Truck/Utility of the Year Ford F-150 – 297 points Chevrolet Colorado – 205 points Lincoln MKC – 68 points The winners were determined by the votes of 57 North American jurors who work in all forms of media – magazine, newspaper, television, online and radio, and their ballots were tabulated in secret by accounting firm Deloitte & Touche. Autoblog editors Sharon Carty and Chris Paukert are members of the North American Car and Truck/Utility of the Year jury. Featured Gallery 2015 Volkswagen Golf TSI View 16 Photos Related Gallery 2015 Ford F-150 View 36 Photos Detroit Auto Show Ford Volkswagen Truck Hatchback 2015 Detroit Auto Show NACTOY