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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:

Investors storm Volkswagen with $9 billion in lawsuits

Volkswagen's investors are latest group to take up pitchforks against the embattled automaker, and they're seeking $9 billion in damages, Reuters reports. The investor lawsuits were filed in a court in Braunschweig, Germany, near Volkswagen's Wolfsburg headquarters. On Monday, the first business day following the anniversary of the emissions revelations, the court received 750 lawsuits alone. All told, about 1,400 lawsuits have been filed. The largest single claim totals $3.7 billion and was filed more than six months ago. The lawsuits stem from complaints that Volkswagen didn't divulge information on the cheating software to investors quickly enough. Volkswagen has said that it hasn't broken any capital market laws. The $21.5 billion the company set aside to weather the storm may not be enough. The consumer fix is estimated to run the company $14.7 billion, either through buybacks or a fix that still seems unclear. In addition to the lawsuits, Volkswagen CEO Matthias Mueller confirmed that Audi boss Rupert Stadler is under investigation regarding the scandal. Mueller refused to give further details, but this shouldn't come as a surprise to anyone. Audi has admitted that its 3.0-liter V6 was equipped with the same emissions-cheating software as the 2.0-liter four-cylinder diesels. Stefan Knirsch, Audi's head of development, has been suspended as part of the overall investigation. Knirsch took over duties after his predecessor quit. Knisch was previously head of engine development at Audi. Related Video: News Source: Reuters Green Hirings/Firings/Layoffs Audi Volkswagen Emissions Diesel Vehicles vw diesel scandal

Paris Motor Show and a Subaru luxury brand? | Autoblog Podcast #556

On this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Green Editor John Beltz Snyder. They kick off this episode with driving impressions of the new 2019 Aston Martin V8 Vantage and 2019 Volkswagen Jetta. Then they recap the 2019 Paris Motor Show, and talk about their favorite cars from the event. They answer some reader mail and try to answer the question: Should Subaru have its own luxury brand?Autoblog Podcast #556 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Cars we're driving: Aston Martin V8 Vantage and VW Jetta Our favorite cars from the 2019 Paris Motor Show Spend Subaru's Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: Green Podcasts Paris Motor Show Aston Martin Automakers Subaru Volkswagen Coupe Electric Luxury Performance Sedan aston martin v8 vantage