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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.

2015 VW Golf R ready for your pre-order on January 8

If you want to be the first person on your block with Volkswagen's latest Golf R parked in your garage, you need to clear some time from your schedule on January 8. On that day, VW is opening the pre-order books for the first 500 Stateside examples of the new hot hatch, and they come with some neat accessories, too. Don't worry about specing just the right Golf R because all 500 early models are identical. In addition to the obvious 2.0-liter turbocharged engine with 292 horsepower 280 pound-feet of torque and 4Motion all-wheel drive, the six-speed dual-clutch gearbox is the only option here. Every one of these hot hatches comes in Lapiz Blue Metallic paint with 19-inch wheels covered in summer performance tires. Based around the DCC and Nav trim, each of them also has VW's adaptive damper system, bi-xenon headlights with LED running lights, a Fender audio system, parking sensors and navigation. Beyond just being the first ones to own VW's latest hot hatch in the US, the deal for these 500 folks also includes a Volkswagen R watch, carbon fiber and stainless steel keychain and a certificate. All three items are serialized to match the VIN of the buyer's Golf R. The total price for each one of these 500 Golf R's is $39,090, plus $820 destination and delivery. But potential buyers don't have to come up with all of that on January 8. They just need to visit VW's Golf R site and pay a $500 reservation fee to get in line, which goes toward the purchase of the car. The money is refundable for anyone who backs out, and any additional orders are put on a waiting list in case of any cancelations.

VW adding particulate filters to gas engines

Volkswagen is working hard to overcome the PR disaster that is its diesel emissions scandal, and part of its efforts is focusing, weirdly, on petrol engines. Starting in June 2017, the embattled German automaker will add particulate filters to the gas-powered Volkswagen Tiguan and Audi A5. The change will eventually impact nearly every direct-injected gas engine the VW Group makes. Audi? Particulate filter. Seat? Particulate filter. Even Bentley is going to get the tech, all in a bid to reduce soot emissions by 90 percent. In fact, by 2022 VAG expects 7 million of its vehicles to boast the emissions-cleaning tech, which has long been a fixture on diesel engines. "Following increases in efficiency and lower CO2 output, we are now bringing about a sustained reduction in the emission levels of our modern petrol engines by fitting particulate filters as standard," Volkswagen Group research and design boss Dr. Ulrich Eichhorn said in a statement. "In the future, all models will be equipped with the latest and most efficient SCR catalytic converter technology." VW's initial rollout focuses on the 1.4-liter, turbocharged Tiguan and the 2.0-liter, turbocharged A5. Considering the popularity of the 2.0-liter across the VW range, we'd expect it's only a matter of time before VW expands its particulate filters tech to additional gas-powered vehicles. Related Video: