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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:

BMW says its diesels are above board

BMW got yanked into the riptide of the Volkswagen diesel scandal thanks to a report in Auto Bild, which Auto Bild has now clarified. On Thursday the German magazine said that when the International Council on Clean Transportation tested the X3 xDrive 2.0d, the ICCT discovered the diesel X3's tailpipe emissions exceeded the European limit by more than 1,100 percent. The key detail, though, is that apparently at no time did the ICCT find that BMW cheated on any emissions tests. No one has explained why the X3 diesel had such high emissions and the ICCT wouldn't comment on the Auto Bild report. But the mag has issued a clarification asserting that in spite of the excessive emissions, there is no evidence BMW engaged in regulatory subterfuge. Every other BMW vehicle ICCT tested was within compliance, but the organization's report from October 2014 - that no one paid attention to - found that nitrogen oxide emissions in 15 vehicles it tested averaged seven times the European limit. The brand's stock is still suffering from the taint. It dropped almost ten percent the day the report came out before rallying to close at five percent down. But on Monday BMW stock closed at 84.01 euros, and as of writing on Friday it's still trying to fight its way back above 80 euros. With so many people still just trying to find out how widespread the the issue is, and trust rather low, it's likely BMW won't be the one dragged down, fairly or not. Related Video:

Someone is leaving anti-diesel flyers on Volkswagen TDIs in Portland

As if some Volkswagen TDI owners don't already feel bad enough, given the recent diesel scandal, someone is further shaming them. Flyers full of bad information are being left on TDI cars in eco-friendly Portland, OR. Portland-based sandwich joint Lardo posted a picture of the flyer to their Instagram account yesterday morning. Along with annoying font color changes, the flyer incorrectly states that the diesel car spews two to four times more pollutants than a Chevy Suburban. The author of the flyer also throws a Nazi mention in there for good measure, though they get the history wrong, too. Volkswagen wasn't founded by Nazis, though the Nazi government did create a nationalized car industry to build the 'People's Car', originally designed by Ferdinand Porsche. The factory ended up making war machines instead. Volkswagens weren't really produced until after the fall of the Nazis at the end of World War II. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Volkswagen outfitted their "clean" diesel cars with a device that would only limit emissions during testing. Once on the road, the car spewed 40 times more pollutants than it claimed. The automaker plans to 'refit' 11 million faulty vehicles. Today, the automaker launched a website dedicated to consumers unlucky enough to own the bum vehicles. Eco-warriors aren't the only ones leaving judgmental, passive-aggressive notes on cars. Like this incident in Portland, these notes often fall flat, like when this paralyzed man in Michigan parked in a handicap spot and was accused of stealing the spot simply because he drove his BMW to the gym.