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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.

Volkswagen Golf Wagon leaked ahead of official unveiling

Wagons ho! These three images of the upcoming Volkswagen Golf Wagon have leaked online ahead of the car's official debut, which may very well be at the Geneva Motor Show. Looking over the photos doesn't really bring any surprises - after all, this is a VW Golf with a wagon rear end grafted on, or basically what we expect next Jetta SportWagen will be.
We can only share these three images at this time, but fret not, folks. There's little doubt that all the details and images will be flowing from Volkswagen in short order. In the meantime, click on the images above to view them in high resolution.

Next VW GTI to get 10-speed dual-clutch gearbox

Following on Volkswagen's official announcement that it was working on a ten-speed, dual-clutch transmission, Auto Express has it on "good authority" that the new transmission will end up in the next GTI, GTD and Golf R. The brand's current seven-speed will be retained for lesser eight-generation Golfs. While the new gearbox won't be limited to just the higher-end Golf range, the new hatchback, expected in 2017, will be the first to get it, Auto Express reports. The new DSG is the same size as the Volkswagen Group's seven-speed dual-clutch, and will easily fit into VAG's MQB platform, so we should expect it to filter into the rest of the Group's vehicles, much like the seven-speed 'box has. The ten-speed is likely to see applications beyond even the small cars of the MQB platform. The gearbox can handle 405 pound-feet of torque, according to AE, making its application in larger offerings such as the gas-powered MLB cars and crossovers a likelihood. Beyond the new gearbox, Volkswagen is also toying with mild-hybrid tech for the standard Golf and better batteries for the e-Golf. As we said, expect the new Golf to arrive in European markets in 2017, with the current Euro-market Golf getting updated next year. As for the US, we wouldn't be surprised if VW followed the trail blazed by the Mark 7, with a North American arrival for the eight-gem Golf slated for a year or so after sales in Europe begin.