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CARB has 20 days to confirm VW's 3.0-liter TDI emission fix

VW's diesel scandal has been in the headlines since last September, but solving the problem it proving difficult. Volkswagen Group has submitted a proposal to the California Air Resources Board (CARB) and the Environmental Protection Agency (EPA) to fix about 85,000 vehicles with the 3.0-liter diesel V6 in the US, Reuters reports. CARB now has 20 business days to test if the plan actually reduces emissions. If accepted, VW could finally begin a recall and end the stop sale on vehicles with these engines. In a statement, CARB pledged to, "respond following a thorough and complete review to make sure the plan addresses the presence of the illegal defeat device and follows the necessary environmental, vehicle and public health and safety regulations." Neither CARB nor the EPA outlined the proposed repairs, but Porsche CEO Oliver Blume already suggested the fix for the engine in the diesel Cayenne. Examples from 2013 and 2014 allegedly need a new catalytic converter and software update, and those from 2015 and 2016 only need the improved code. It's not yet clear whether this procedure would work for all models with the 3.0 TDI. While the EPA issued the notice of violation against VW's 2.0-liter four-cylinder diesel in September, the first one for the 3.0-liter V6 came in early November. By the end of the month, the agency broadened the scope to about 85,000 vehicles, including some examples of the VW Touareg, Audi A6, A7, A8, Q5, Q7, and Porsche Cayenne. The affected companies issued stop sales on new models with the engine. Audi eventually admitted to regulators that it didn't disclose three auxiliary emission control devices in the powerplant's code and promised to develop a software update to fix the problem. CARB gave the automaker 45 business days to submit the proposed solution. If accepted, this repair would allow VW Group to end part of the emissions scandal, but there's no guarantee the regulators consent to this solution. Just a few weeks ago, CARB looked at the automaker's plan to fix the 2.0-liter TDI and rejected it, claiming a lack of detail.

VW recalls another 6,700 vehicles over fuel leak [UPDATE]

UPDATE: An earlier version of this post suggested that the expanded recall involved an additional 44,658 units, when VW tells us that is in fact the total number - adding a further 6,679 to the original recall of 37,979. The text below has been updated accordingly, with our apologies for the confusion. It was a little over a month ago that Volkswagen issued a recall for some 38,000 vehicles over a potential fuel leak. Now the German automaker and the National Highway Traffic Safety Administration have expanded that recall, affecting even more vehicles for the same issue. The problem revolves around a sealing cap at the fuel rail, which could fail and cause fuel to leak into the engine compartment, thereby increasing the risk of a fire. This time around, VW is calling in a selection of Jettas, Passats, Golfs, GTIs, Beetles and Beetle Convertibles, all of them from the 2014 and 2015 model years (except the Golf and GTI, of which only 2015 models are being recalled). The recall now affects an estimated additional 6,679 units, which (in addition to the 37,979 recalled previously) brings the total up to 44,658 vehicles across the United States. RECALL Subject : Fuel Leaking Into Engine Compartment Report Receipt Date: JAN 23, 2015 NHTSA Campaign Number: 15V028000 Component(s): FUEL SYSTEM, GASOLINE Potential Number of Units Affected: 44,658 Manufacturer: Volkswagen Group of America, Inc. SUMMARY: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2014-2015 Jetta vehicles manufactured March 28, 2014, to November 24, 2014, 2014-2015 Passat vehicles manufactured April 7, 2014, to November 18, 2014, 2015 Golf and GTI vehicles manufactured July 1, 2014, to November 20, 2014, and 2014-2015 Beetle and Beetle Convertible vehicles manufactured March 31, 2014, to November 27, 2014. A sealing cap at the fuel rail may fail, allowing fuel to leak into the engine compartment. CONSEQUENCE: A fuel leak, in the presence of an ignition source, can result in a vehicle fire. REMEDY: Volkswagen will notify owners, and dealers will replace the fuel rails with new parts, free of charge. The recall is expected to begin in early February 2015. Owners may contact Volkswagen customer service at 1-800-822-8987. Volkswagen's number for this recall is 24BL. Note: This recall expands and supersedes recall 14V-809 (Volkswagen recall number 24Bi) and only affects vehicles not previously repaired under that campaign.

New info on how VW, Porsche, Audi V6 TDI engine cheat works

The German newspaper Bild am Sonntag is reporting that US investigators have found three pieces of software that work in concert to turn off the emissions control equipment in certain diesel models after a set period of time. The engine in question, the 3.0-liter TDI turbodiesel, was found in certain Volkswagen Touareg, Audi Q7, and Porsche Cayenne models – the sale of which was suspended in the US late last year. Since most emissions compliance testing takes around 20 minutes, the software in the three VW Group models shuts off the emissions control equipment after 22 minutes, a straightforward end run around the testing. Remember that the 3.0-liter TDI engines aren't included in the big buyback and recall program announced for the smaller 2.0-liter, four-cylinder TDI engines. The 3.0-liter engines will likely get their own program, but we don't know when to expect it or exactly what it will look like. Last month, California rejected a proposed fix for the larger TDI engines, and VW went back to the drawing board. Since the company is unlikely to create two fixes, one for California and one for the rest of the nation, the company can't really proceed until they figure out a solution California will accept. The EPA hasn't officially commented on the report, and we don't know how Bild am Sonntag came across the information, but we'll be closely watching what emerges after this report. Related Video: