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Weekly Recap: Diesel scandal continues to fuel VW's woes

Volkswagen's woes continued this week when it was delisted from the Dow Jones Sustainability Index and stripped of awards. Senators are also lining up to advocate for criminal and civil action against the automaker, and its consumer reputation is in tatters. Put simply, it's been another rough period for VW. Despite this, the company eked out a sales gain of less than one percent in September, though that was well behind the overall market's performance. Sister brand Audi, which sells a diesel A3, was less affected, posting a 16-percent gain in September. Revelations that Volkswagen rigged millions of diesel-powered cars around the world didn't surface until September 18, so the full sales impact of the ongoing scandal won't likely be felt until October. Meanwhile, VW's image continues to take a beating, and an AutoPacific survey found only one in 14 vehicle owners have a positive opinion of the company. Before the scandal broke, three-quarters of respondents had a positive view of VW. The survey also found 64 percent don't trust Volkswagen, though the same number believe other companies are or may also be using cheating devices to pass emissions tests. "The reputation of diesels has been severely damaged, at least for the short term," Ed Kim, AutoPacific's vice president of industry analysis, said in a statement. Despite the lingering malaise, experts believe VW will recover, just as Toyota and General Motors eventually emerged from their own high-profile controversies. "Consumers have proven through numerous recalls that they are resilient and quickly return to their buying habits," Kim said. OTHER NEWS & NOTES Mazda to reveal sports car concept in Tokyo Mazda will bring a curvy sports car concept to the Tokyo Motor Show in October. The automaker is being especially coy with the details, only releasing the dark teaser shot that you see to the right and a cryptic statement that suggests the concept "condense[s] Mazda's entire history of sports-car development into a single model." Immediately, speculation abounded this is an RX-7 and RX-8 successor, though Mazda didn't specify what engine the concept will have. Reportedly, the company is still working on rotary engines. Mazda will have a Cosmo Sport 110S on its stand in Tokyo, which pioneered rotary technology in 1967. Read into that what you will. The Rock pitches Ford service Dwayne Johnson, also known as The Rock, is the new frontman for Ford service.

Autoblog Podcast #366

Episode #366 of the Autoblog podcast is here, and this week, Dan Roth, Jeff Ross and George Kennedy of Boldride.com talk about the 2015 Lincoln Navigator, Volkswagen's US market woes, and the drama at the Rolex 24 hours of Daytona. We start with what's in the garage and finish up with some of your questions, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Check out the new rundown below with times for topics, and you can follow along after the jump with our Q&A. Thanks for listening!
Autoblog Podcast #366:
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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.