2012 Volkswagen 2.0t Turbo W/sun/snd/nav Pzev on 2040-cars

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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.

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:

Goodbye, Shelby GT350; hello, new Honda Ridgeline and Subaru BRZ | Autoblog Podcast #648

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Road Test Editor Zac Palmer. This week's news includes Subaru teasing the next-generation Subaru BRZ, the Jaguar XE departing and the XF getting an update, Honda unveiling the new Ridgeline pickup and the Acura NSX suffering from slow sales. This week they talk about driving two vehicles on opposite ends of the spectrum: the Ford Mustang Shelby GT350 and the Volkswagen Atlas. Autoblog Podcast #648 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 Subaru previews next-generation BRZ, announces fall 2020 unveiling date Jaguar XE axed from U.S. market: And then there was one sedan 2021 Jaguar XF gets new interior, down to four-cylinder engines and sedan body style 2021 Honda Ridgeline debuts, and it finally looks like a truck Acura NSX sales lagging Cars we're driving: 2020 Ford Mustang Shelby GT350 Heritage Edition 2020 Volkswagen Atlas Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: