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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.

Happy 60th to the VW Karmann Ghia

Volkswagen's product portfolio may be as extensive these days as any other carmaker in the business. But if you still think of the original Beetle as synonymous with the brand, that's probably because a) you're old and b) the Beetle was the company's only product until the mid-50s.
Sixty years ago Wilhelm Karmann (founder of the eponymous coachbuilder) was in Paris for the auto salon and met up with Luigi Segre and his team from Carrozzeria Ghia who showed him what was essentially a "Beetle in a sports coat." A month later they showed it to Volkswagen chief Heinrich Nordhoff who, setting aside his conservative tastes, approved it for production. And so the Volkswagen Karmann Ghia was born, giving the German marque a second product line. It still used Beetle mechanicals and was built at the same Karmann factory in Onsabrück that was already assembling the Beetle Cabriolet.
It took another couple of years to put the design into production, but from 1955 to 1974, Volkswagen and Karmann built 362,601 coupes and 80,881 of the subsequent convertible that arrived in 1957. Today the Onsabrück factory is part of the VW Group, handling production of the Golf Cabriolet, XL1 and Porsche Boxster and Cayman, and with that original Karmann Ghia prototype as part of its factory collection.

J.D. Power customer survey of dealers counts Cadillac, Buick as big winners

Cadillac and Buick have taken the trophies in J.D. Power's latest Customer Service Index Study examining satisfaction with dealer service. Surveying more than 90,000 owners and lessees of 2009-2013 model-year cars, the study found that those with pre-paid maintenance packages were ten percent more likely to buy their next car from the same brand.
Dealer satisfaction scores have improved overall, Cadillac nabbed the luxury segment ahead of Audi and Lexus, taking the crown that Lexus held last year. Buick keeps the mass-market dealer satisfaction win in the family, finishing ahead of Volkswagen and last year's winner GMC. The study also found that service department use of tablets increased customer satisfaction, as did "best practices" like "providing helpful advice." Who knew?
You can find details on those and more findings in the press release below.