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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.

The mood at this year’s Paris Motor Show: Quiet

The Paris Motor Show, held every other year in the early fall, typically kicks off the annual cavalcade of automotive conclaves, one that traverses the globe between autumn and spring, introducing projective, conceptual and production-ready vehicle models to the international automotive press, automotive aficionados and a public hungry for news of our increasingly futuristic mobility enterprise. But this year, at the press preview days for the show, the grounds of the Porte de Versailles convention center felt a bit more sparsely populated than usual. This was not simply a subjective sensation, or one influenced by the center's atypically dispersed assemblage of seven discrete buildings, which tends to spread out the cars and the crowds. There were not only fewer new vehicles being premiered in Paris this year, there were fewer manufacturers there to display them. Major mainstream European OEM stalwarts such as Alfa Romeo, Fiat, Nissan and Volkswagen chose to sit out Paris this year, as did boutique manufacturers like Bentley, Aston Martin and Lamborghini. This is not simply based in some antipathy on the part of the German, British and Italian manufacturers toward the French market — though for a variety of historical and societal reasons that market may be more dominated by vehicles produced domestically than others. Rather, it is part of a larger trend in the industry. Last year, Mercedes-Benz announced that it would not be participating in the flagship North American International Auto Show in 2019 — and that it might not return. Other brands including Jaguar/Land Rover, Audi, Porsche, Mazda and nearly every exotic carmaker have also departed the Detroit show. Some of these brands will still appear in the city in which the show is taking place, and host an event offsite, to capitalize on the presence of a large number of reporters in attendance. And even brands that do have a presence at the show have shifted their vehicle introductions to the days before the official press opening in an attempt to stand out from the crowd. In many ways, this makes sense. With an expanding number of automakers, with diversification and niche-ification of models and with wholesale shifts that necessitate the introduction of EV or autonomous sub-brands, there is a growing sense that, with everyone shouting at the same time, no one can be heard.

Audi 3D-printed this tiny Type C racer, we want to drive it

See this little guy? No, not the one driving – that's Professor Hubert Waltl, Audi's head of production and Volkswagen's chief toolmaker. The thing he's driving, though, is a 1:2 scale replica of the 1936 Auto Union Type C. And it was 3D-printed entirely in house. Not in one piece, mind you. It's too big for that. But the Audi Toolmaking division employed metal printing technology to fabricate all the parts that went into this replica of one of the most dominant of the Silver Arrow grand prix racers of the pre-war era. It's essentially like the pedal car Audi rolled out nine years ago, or the E-Tron concept it showed us nearly five years ago. Only this one uses more advanced manufacturing techniques. Aside from making us want to drive it like nobody's business, the half-sized vehicle serves to showcase the advancements which Audi and the VW Group are making in manufacturing – particularly in the area of 3D printing. The German automaker presently has the technology to print laser-melted layers of metallic powder – either steel or aluminum – with grains measuring half the diameter of a human hair. The equipment can handle objects as large as 7.9 inches high by 9.5 inches wide – which, as small as this little car looks, is still a bit too large to simply print out in one piece. Audi Toolmaking prints "Auto Union Typ C" - Exact model of the "Silver Arrow" from a 3D printer - Audi Board of Management Member for Production Prof. Dr. Hubert Waltl: "This underscores our pioneering role in toolmaking." From powder to a component: With a 3D printer, Audi Toolmaking has produced a model of the historical Grand Prix sports car "Auto Union Typ C" from the year 1936. The company is now examining further possible applications of metal printers for the production of complex components. At the same time, Audi is creating important synergies with toolmaking in other parts of the Volkswagen Group. "We are pushing forward with new manufacturing technologies at Audi Toolmaking and at the Volkswagen Group," stated Prof. Dr. Hubert Waltl, Audi's Board of Management Member for Production and Head of Toolmaking at the Volkswagen Group. "Together with partners in the area of research, we are constantly exploring the boundaries of new processes. One of our goals is to apply metal printers in series production." The Volkswagen Group has a total of 14 toolmaking units in nine countries. Under the leadership of Prof. Dr.