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VW Jetta TDI dyno shows HP loss trying to recreate cheat mode

Volkswagen is working on a fix for diesel-engined vehicles that are out of compliance with emissions regulations in the US and other countries. We're told that engineers will be presenting a solution internally sometime this month, but that doesn't mean we'll actually see it in the wild this month. One big question we have about the coming fix is, will it affect the car's performance? That question relates to another we have about the engine as it is: How much performance would the 2.0-liter diesel lose right now if it were turned down to pass US emissions? The Fast Lane Car tried to sketch some answers by going to a shop in Denver, Colorado to run a 2011 Jetta TDI with a six-speed DSG transmission on an all-wheel-drive dyno. The thinking was that if you ran all four wheels the car would think it was on the road, whereas if you ran only two the car might think it's being tested. We'll get straight to the numbers: the stock sedan is quoted at 140 horsepower and 236 pound-feet of torque. When run with all four wheels turning it produced an uncorrected 114 hp and 214 lb-ft at the wheels. When run with just two wheels in motion the Jetta got 113 hp and 188 lb-ft at the wheels. Reading the graph, we're told that power differences between the two runs were as much as 15 hp and 32 lb-ft. You'll need to take some salt with these numbers, though, because the dyno and test protocol in the video are nothing like those used by the EPA. The shop attempts to trick the Jetta into 'emissions testing mode' by using the front wheels only for the two-wheel-drive run, but we have a feeling the software code at issue is far more sophisticated than that, since the ICCT, UVA, the EPA, and CARB investigated the situation for more than a year and couldn't figure out. Also, the technician adjusts for being a mile above sea level with a correction factor of 1.2 applied to horsepower and torque, which inflates the disparity in the final power differences over the two runs. Go to YouTube and read the lengthy comments on the video left by Andrew Price for a more thorough dissection of what could explain TFL's disparities. You can watch the video above, and feel free to try and dissect the results yourselves in the comments below. Related Video:

Audi CVT suit settlement given green light, 64,000 cars covered

Audi drivers, listen up. If you bought or leased a 2002-06 model-year A4 or A6 with a factory-installed Continuously Variable Transmission (CVT) that failed, you may be entitled to reimbursement under a recently settled class-action lawsuit with corporate parent Volkswagen.
According to Automotive News, the settlement covers about 64,000 vehicles and alleges that "manufacturing and design problems caused the transmissions to fail and left owners stuck with repair costs." While the suit also argues Audi was aware of these issues (going so far as to hide that knowledge from consumers), the settlement stops short of acknowledging any wrongdoing by the German automaker.
Audi drivers are eligible for a cash reimbursement if their CVT repairs occurred within 10 years or 100,000 miles of the date they bought or leased the vehicle before June 19, 2013. To be eligible for compensation, drivers must submit a claim form (found here) with supporting documents by November 18.

Volkswagen's emissions deception brings more scrutiny to entire industry

Volkswagen's emissions deceptions have hurt the entire auto industry's credibility with federal regulators. Days after the world's largest automaker confessed to installing software that circumvents emissions standards on approximately a half-million diesel vehicles in the United States, a top federal safety official says the company's dishonesty will force government officials to view the entire auto industry with heightened skepticism. "Your first question has to be, 'How extensive is it through the whole industry?' You don't know if it's a unique case or if other people are doing it," said Mark Rosekind, administrator of the National Highway Traffic Safety Administration. "The unfortunate part is you're not going to worry about one person. It's extended to the entire industry. If they did it, someone else could do it." "They tell you one thing, you question it." - Mark Rosekind Rosekind's agency doesn't bear responsibility in investigating the emissions cheating. That falls to the Environmental Protection Agency, which served Volkswagen with a Notice of Violation on Friday that alleged the company's diesel vehicle equipped with 2.0-liter engines contained a defeat device that allowed the cars to detect when emissions testing was taking place. In normal driving situations, the cars spewed pollution at as much as 40 times allowable thresholds. But because of the emissions cheating, NHTSA wonders if the German automaker has been cutting corners on safety standards or disingenuous on safety-related discussions. Speaking at an auto-industry event in Novi, MI, on Tuesday, Rosekind indicated no information can now be taken at face value. He used the phrase "Question assumptions" several times in discussing the case. "Of course, question assumptions means, 'Is there some other safety element there that we're now going to have to investigate?" he said. As it did in the General Motors ignition-switch probe, the Department of Justice has initiated an investigation of Volkswagen and the House Committee on Energy and Commerce announced it will hold hearings on the cheating. For NHTSA, criminal cases complicate matters. The agency core function is to regulate safety, not conduct criminal investigations. But in the early going, their investigators may be the first ones to spot wrongdoing.