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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 finds CO2 'irregularities' for 800k vehicles

The latest issue for Volkswagen affects another 800,000 vehicles, and this time its for irregularities in CO2 emissions certifications. VW estimates this issue could cost the company $2.2 billion to fix. The company officially makes no specific mention of which engines are covered, the models they are in, or even where they are located. VW discovered the situation during its ongoing internal investigation, and, according to the automaker, "it was established that the CO2 levels and thus the fuel consumption figures for some models were set too low during the CO2 certification process." Most of the affected vehicles are diesels, and the company is now reaching out to "the responsible type approval agencies" to figure out the next step. While VW isn't officially confirming which models and engines are involved, Automotive News reports that it affects some 2012 and later VW, Audi, Seat, and Skoda models with the company's 1.4-, 1.6-, and 2.0-liter diesel engines, as well as the 1.4-liter ACT gasoline engine. The issue mainly affects vehicles sold in Europe. "The Board of Management of Volkswagen AG deeply regrets this situation and wishes to underscore its determination to systematically continue along the present path of clarification and transparency," CEO Matthias Muller said in the announcement. Volkswagen Group of America spokesperson Jeannine Ginivan was able to provide some further clarification to Autoblog. "This is not related to US-certified vehicles," she said. Clarification moving forward: internal investigations at Volkswagen identify irregularities in CO2 levels Matthias Muller: "Relentless and comprehensive clarification is our only alternative." Around 800,000 Group vehicles could be affected Initial estimate puts economic risks at approximately 2 billion euros The Volkswagen Group is moving forward with the clarification of the diesel issue: during the course of internal investigations irregularities were found when determining type approval CO2 levels. Based on present knowledge around 800,000 vehicles from the Volkswagen Group could be affected. An initial estimate puts the economic risks at approximately two billion euros. The Board of Management of Volkswagen AG will immediately start a dialog with the responsible type approval agencies regarding the consequences of these findings. This should lead to a reliable assessment of the legal, and the subsequent economic consequences of this not yet fully explained issue.

Volkswagen Cross Coupe GTE concept previews new midsize CUV... again

Volkswagen has taken a big step towards the long-awaited second model to be built at its Chattanooga, TN factory, introducing the two-row Cross Coupe GTE Concept at the 2015 North American International Auto Show. The relatively handsome two-row crossover borrows its basic styling language from the CrossBlue Concept that launched at the 2013 Detroit show (that we later had a brief chance to drive), and the CrossBlue Coupe from that year's Shanghai Motor Show. To be entirely frank, it just looks like a much more production-ready version of the Shanghai concept. The more aggressive elements of that model, like its rear taillights, rounded wheel arches, and aggressive front and rear fascias, have been toned down considerably. In other words, this concept almost wouldn't look out of place on the average road. Changes in the cabin are similarly minor, with the same basic design as the CrossBlue, complemented by a 12.3-inch digital instrument cluster and a 10.1-inch touchscreen display. While it's still quite clearly a concept car interior, it's not hard to imagine VW transitioning this cockpit into a production model. Riding atop the Volkswagen Group's MQB architecture – making it a relative, albeit distant, of cars like the VW Golf, Audi TT and the Euro-market Passat – the Cross Coupe GTE is motivated by a 3.6-liter VR6 that's been mated to not one, but two electric motors (one on each axle). The gas engine offers up 276 horsepower and 258 pound-feet of torque, while the front axle's electric motor generates 54 hp and 162 lb-ft of torque, and the rear can deliver a more robust 114 hp and 199 lb-ft of torque. That cacophony can be easily boiled down to this: the Cross Coupe GTE has a total system output of 355 hp and 280 pound-feet of torque, which is good enough to get the five-seater to 60 miles per hour in six seconds, on to a top speed of 130 miles per hour. As a plug-in hybrid, though, there's more to the Cross Coupe GTE then just its power output. Range plays a big role, and in that regard, this concept is fairly average. It can cover 20 miles when its 14.1-kilowatt-hour lithium-ion battery is charged up. Beyond that, the drivetrain can be set to a number of modes to optimize the behavior of plug-in-hybrid powertrain. In E-Mode, which can be locked in via a battery hold/battery charge mode, all 20 miles of range are available, although the Cross Coupe's driver will only have the 114-hp rear axle electric motor to work with.