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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.

VW bringing fuel cell concept to LA Auto Show

Amid the flurry of hydrogen announcements from Toyota and Honda last night, Volkwagen has something to add: a new hydrogen fuel cell concept vehicle. This will be the first VW hydrogen fuel cell vehicle in many years – remember the Tiguan Hy-Motion back in 2008? – and it comes as a bit of a surprise. First written up by the German publication Wirtschaft Woche, VW is going to have the prototype car (not pictured) available at the ride and drive at the Los Angeles Auto Show later this week. We don't yet know what kind of vehicle will sport the hydrogen powertrain, but our money's on a Golf variant. We'll see soon enough when we get to Los Angeles. What's interesting is that there have been a number of not-so-mixed messages out of the VW executive ranks when it comes to hydrogen vehicles. VW's Japanese president, Shigeru Shoji, said in September that, hydrogen fuel cells, "may fly within Japan, but not globally." Last year, VW's electrification head Rudolf Krebs said that "hydrogen mobility only makes sense if you use green energy." Also last year, VW CEO Martin Winterkorn said it's basically impossible to build hydrogen vehicles at a "reasonable cost." Nonetheless, we're going to see a new VW H2 concept soon. Thoughts?

VW recalling 38k Jettas, Passats, Golfs and Beetles for fuel leak

Earlier we reported on a recall issued for the 2015 VW Jetta regarding a problem with the headlights, and now Volkswagen and the National Highway Traffic Safety Administration have issued another recall for a separate issue affecting not only the Jetta, but several other models as well. The issue revolves around a sealing cap in the fuel rail, which could leak fuel into the engine compartment and potentially cause a fire. The problem affects an estimated 37,979 vehicles in the United States, including the 2014-15 Jetta (manufactured between March 28 and November 24, 2014), the 2014-15 Passat (April 7 to November 18), the 2015 Golf and GTI (July 1 to November 20) and the 2014-15 Beetle and Beetle Convertible (March 31 to November 27). That covers pretty much the entire range offered by Volkswagen of America, short of the Tiguan and Touareg crossovers (and the discontinued Eos convertible). Considering, though, that VW routinely sells around 30,000 vehicles in the US each month, the small number of vehicles being recalled (relative to the quantity out there) tells you this recall really only affects a specific cross-section of models. Owners of the affected vehicles can expect to be contacted by their dealers to have the fuel rails replaced. RECALL Subject : Fuel Leaking Into Engine Compartment Report Receipt Date: DEC 22, 2014 NHTSA Campaign Number: 14V809000 Component(s): FUEL SYSTEM, GASOLINE Potential Number of Units Affected: 37,979 Manufacturer: Volkswagen Group of America, Inc. SUMMARY: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2014-2015 Jetta vehicles manufactured March 28, 2014, to November 24, 2014, certain 2014-2015 Passat vehicles manufactured April 7, 2014, to November 18, 2014, certain 2015 Golf and GTI vehicles manufactured July 1, 2014, to November 20, 2014, and certain 2014-2015 Beetle and Beetle Convertible vehicles manufactured March 31, 2014, to November 27, 2014. A sealing cap at the fuel rail may fail, allowing fuel to leak into the engine compartment. CONSEQUENCE: A fuel leak, in the presence of an ignition source, can result in a vehicle fire. REMEDY: Volkswagen will notify owners, and dealers will replace the fuel rails with new parts, free of charge. The manufacturer has not yet provided a notification schedule. Owners may contact Volkswagen customer service at 1-800-822-8987. Volkswagen's number for this recall is 24Bi.