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To solve diesel problem, VW might need two fixes

Volkswagen says that a fix is on the way for its 11 million vehicles around the globe that are equipped with diesel engine software that can evade emissions tests. The problem might be far more complicated than simply creating a single solution for all of them, though. According to Automotive News citing Reuters, two remedies to cover different NOx-reducing systems could be necessary, and both potentially affect performance. Earlier examples of the EA 189 diesel engine used a lean NOx trap to reduce the harmful material coming from the tailpipe. According to experts in the Automotive News report, a software update might allow the engines to achieve compliance, but that could affect fuel economy. VW already tried this route once before the scandal came to light, but tests by the California Air Resources Board still showed the figures were too high. Later, some of the 2.0 TDI engines began using Selective Catalytic Reduction that reduced NOx by injecting a urea solution into the exhaust stream. According to Automotive News, a software update for this equipment might increase the amount of the substance used. Not only would that mean topping up the fluid more often, but there still could be some reduction in fuel economy. But, since the 2-liter, 4-cylinder TDI engine that sits inside the diesel vehicles first mentioned as being affected by the issue in the US don't have a urea treatment system, VW would need to install them into these cars. VW still hasn't officially outlined its solution (or solutions) to the emissions issue but is expected to soon. The automaker's long-term evasion of regulations with these diesel engines pumped vast quantities of additional NOx into the air. The substance is known to be linked with smog and acid rain. The US Department of Justice is already beginning an investigation into the company, and politicians are pushing for harsh punishments.

KBB: VW diesel prices have dropped 16%

There are a lot of post-scandal theories and metrics concerning Volkswagen's performance during the diesel emissions scandal, although none of them has created a clear picture of where things are headed. Kelley Blue Book has a few more to add to the spreadsheet, though, finding that average auction prices for VW diesels and Internet shoppers perusing them have both gone down in the past four weeks on KBB.com. Auction prices on the site are down an average of 16 percent for VW oil burners, which compares to a decline of 2.9 percent for gas-powered VWs. Shoppers are still on the lookout, though, even if the numbers are slightly reduced. Overall, "new-car shopping activity" for the small-capacity VW diesel offerings is down 2.4 percent, a number held partly in check by searches for the Jetta SportWagen being up by 3.7 percent. Shoppers are looking harder at the Audi A3 diesel, too, its activity up 1.6 percent. The Golf, though, is down 3.7 percent and the Golf SportWagen down 6.2 percent. Shoppers leaving the diesel fold aren't necessarily going for high-mileage options, either, KBB saying that the Ford Fusion and Honda Civic are quick alternatives to the Jetta TDI, while the Mercedes CLA and BMW 2 Series are getting new looks from those interested in the Audi A3 diesel. You can read the full release from KBB below. VOLKSWAGEN DIESEL VEHICLE PRICES DECLINE NEARLY 16 PERCENT, ACCORDING TO KELLEY BLUE BOOK DATA New-Car Shopping Activity Also Impacted by Recent Emissions Issue IRVINE, Calif., October 21, 2015 – Kelley Blue Book www.kbb.com, the only vehicle valuation and information source trusted and relied upon by both consumers and the automotive industry, today reports that average auction prices, along with new-car shopping activity on KBB.com, for Volkswagen diesel vehicles have declined four weeks after the diesel emissions issue was announced. The average auction price for Volkswagen diesel models dropped by nearly 16 percent since the news broke of the emissions crisis.[1] The average auction price for the brand's gasoline-powered vehicles declined by 2.9 percent.1 On KBB.com, Volkswagen new-car shopping activity for affected TDI models has decreased on average by 2.4 percent. "According to Kelley Blue Book Field Analysts, some auctions are still holding off on selling the affected Volkswagen inventory," said Tim Fleming, analyst for Kelley Blue Book.

How the Volkswagen cheating probe developed

Fallout from Volkswagen's revelation that it engaged in cheating on emissions testing continued Monday, with the company's stock falling more than 15 percent and a Congressional subcommittee announcing an investigation into the German auto giant's conduct. Both the Environmental Protection Agency and California Air Resources Board served Volkswagen with a Notice of Violation on Friday, saying the company intentionally circumvented emissions standards by using "defeat devices." Here's a look back at the agencies' emissions enforcement history and how the charges involving Volkswagen developed. August 1998 – Honda spends $267 million to settle charges it violated the Clean Air Act by disabling "misfire monitoring devices" installed on more than 1.6 million vehicles. Ford spends $7.8 million to settle a charge it violated the Clean Air Act by installing defeat devices on 60,000 Ford Econoline vans. May 2014 – Working with the International Council on Clean Transportation, researchers at West Virginia University find significantly higher in-use emissions from a 2012 Jetta and 2013 Passat and alert the EPA to their findings. November 3, 2014 – Korean automakers Hyundai and Kia agree to pay a $100 million fine for overstating the fuel economy on several of their models by as much as six miles per gallon. In announcing the fine, government officials sought to make an example of the two companies to deter further cheating. VW officials admit the vehicles were designed with a defeat device to "bypass, defeat and render inoperative elements of the vehicle emissions control systems." "This type of conduct quite simply will not be tolerated," said then-Attorney General Eric Holder. "And the Justice Department will never rest or waver in our determination to take action against any company that engages in such activities – whenever and wherever they are uncovered." December 2, 2014 – Following discussions that stemmed from West Virginia University's findings, Volkswagen agrees to initiate a recall of 500,000 cars. The company says a software update will fix the nitrous oxide trap technology and selective catalytic reduction technology causing the cars to miss emissions thresholds. May 6, 2015 – CARB wanted to see whether the software fix implemented by Volkswagen worked. Using portable emissions measurement systems, the regulatory officials found NOx emissions were still significantly higher than expected.