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German prosecutors raid VW, Audi offices

As Volkswagen continues to try to put its diesel emissions scandal behind it, the company has had mixed success. It has agreed to pay penalties and fix or buy back affected vehicles in the US, and has made a strong push to evolve into a greener, mobility-focused company. The scandal just won't die, though, and has, in fact, just escalated. Prosecutors have searched Volkswagen's Wolfsburg, Germany, headquarters, as well as Audi offices in Ingolstadt and Neckarsulm and even the homes of some Audi executives, Reuters reports. The raids, which coincided with Audi's annual earnings press conference, are related to 80,000 diesel vehicles with possible emissions cheat devices sold in the US between 2009 and 2015. European vehicles aren't part of this particular investigation. "With these search orders, we aim to clarify in particular who was involved in deploying the technology concerned and in the provision of false information to third parties," the Munich prosecutor's office says. Audi CEO Rupert Stadler, who says his residence had not been one of those searched, says he is supporting the ongoing investigation, admitting that the company has a long way to go to recover from the scandal. The Dieselgate scandal, as it has come to be known, broke in September 2015. Related Video:

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 R 400 will come to US

If you're like us, and have been drooling over the Volkswagen Golf R 400 concept since it was first unveiled in Beijing last year, we've got some potentially good news for you. Dr. Heinz-Jakob Neusser, member of the board of management responsible for development at Volkswagen, told Autoblog that the Golf R 400 will definitely come to the US... if it gets the production green light, anyway. Neusser says that the US market has had a hugely positive reaction to the seventh-generation Golf family. The new hatch won both Motor Trend Car of the Year and North American Car of the Year, and Volkswagen has expanded the Golf range to include a bunch of new variants, including the electric e-Golf and recently released SportWagen. The Golf R 400 would "fit very well into this strategy," says Neusser. The hotter Golfs have been successful, too. When Volkswagen opened the order books for the 2015 Golf R, the yearly allocation for the US sold out in just 11 hours. Neusser says the R 400 will "show how sporty the Golf family can be." We're certainly in favor of this hottest hatch hitting our market. All we need now, is for Volkswagen to officially give it the go-ahead.