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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.

California orders VW Group to fix 15,000 3.0L diesel vehicles

The California Air Resources Board has ordered Volkswagen to come up with a plan for repairing approximately 15,000 cars sold in the state that contain illegal software that may circumvent emissions testing. In a letter sent to Volkswagen Group of America and several company brands, CARB's chief emissions officer says the company has 45 business days to submit a recall plan that will fix affected Volkswagen, Audi, and Porsche models equipped with 3.0-liter diesel engines sold in the state since 2009. "We expect full cooperation in this investigation so this issue can be addressed expeditiously and appropriately," wrote Annette Herbert, chief of emissions compliance. The violations first surfaced in a meeting last week between California regulatory officials and Audi executives. In that meeting, Audi admitted certain versions of A6, A7, A8, Q5 and Q7 models contained three previously undisclosed auxiliary emissions control devices. An auxiliary device is not necessarily the same as a defeat device that intentionally cheats on emissions testing, but Audi and other affected brands hadn't disclosed the existence of the AECDs, which is a violation of the state's health and safety code. Had they been disclosed prior to vehicle certification, there's a possibility CARB may have approved use of the devices. In a statement Wednesday, CARB did not elaborate on whether it considered the three devices mere AECDs or defeat devices. When Volkswagen submits its plan to fix the cars, CARB says it must include an assessment of how the repairs will affect fuel economy, performance, drivability, and the safety of each vehicle. The 15,000 cars affected in California are part of roughly 85,000 nationwide which contain the affected 3.0-liter engines. The US Environmental Protection Agency may soon address how it expects Volkswagen to fix the remaining cars. "EPA and CARB are working closely and continue to investigate following the admission by Volkswagen that the issues EPA identified in the November 2nd NOV (Notice of Violations) extend to all 3.0-liter diesel Volkswagen, Audi, and Porsche vehicles," an agency spokesperson said in a statement Wednesday. "EPA will take all appropriate enforcement action." The 3.0-liter developments, of course, come on top of the company's September admission that 482,000 diesels equipped with 2.0-liter engines contain defeat devices that detect emissions testing and alter the cars' performance.

VW sales increase 0.6% in September despite diesel scandal

Volkswagen was spared in the month of September from posting a sales disaster, but in reality, the impending doom and gloom is likely just postponed until October. According to VW, it delivered 26,141 vehicles to its dealerships last month, which represents a 0.6-percent gain over the same period a year ago. While up, that meager increase represents the smallest uptick of all major brands in the United States, which is currently in the middle of the best vehicular sales year in the last decade. Audi, the German automaker's mainstream luxury unit, saw a bigger gain at 16.2 percent with 17,340 total units sold, thanks in large part to the popularity of its crossover models. These numbers can't totally be taken at face value, however. In 2014, Labor Day weekend was counted as part of August's sales figures; in 2015, that traditional car-buying holiday fell early in September and is therefore partly responsible for the huge increases from all brands doing business in the United States. Remember, the diesel emissions scandal didn't hit the news until September 18, which means VW was free to sell its 2.0-liter TDI engine for the majority of the month. In other words, October is going to be the real indicator of sales reckoning as it will be the first full month that the brand can't sell its popular diesel models and the first since its emissions scandal broke. Still, TDI sales were down last month. VW reports a total of 3,060 sales of vehicles equipped with TDI engines, which represents 11.7 percent of total volume. That's nearly cut in half from the TDI's year-to-date volume percentage of 20.4 percent. "We would like to thank dealers and customers for the support of the Volkswagen brand," said Mark McNabb, chief operating officer for Volkswagen of America in a statement. "Volkswagen will continue to work diligently to regain trust and confidence in our brand." It's not yet clear exactly when VW will issue a fix to make its 2.0-liter TDI engine emissions legal, or when the EPA will recertify those models for sale. Once those two things happen, dealers will again be free to sell vehicles equipped with the powertrain, but even then it remains to be seen how consumers react when the sales ban is lifted. Scroll down below for all the sales data from Volkswagen in September.