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Honda, Mazda, Mitsubishi, Mercedes also under diesel emissions scrutiny

The controversy over Volkswagen's diesel emissions scandal isn't limited to the US. In Europe, where diesel engines are far more popular, the issue is shining a harsh light on the NEDC emissions test. As already known, the evaluation does a poor job of reflecting real-world production of NOx, and it appears a significant number of automakers are affected. The Guardian in the UK has been reporting on real-world test results from a company called Emissions Analytics. After the latest round of checks, vehicles from Mercedes-Benz, Honda, Mazda and Mitsubishi were found to generate far more NOx than they should. The newspaper also published similar results for Renault, Nissan, Hyundai, Fiat, Volvo, Jeep, Citroen, VW, and Audi. On average, the figures are about four times over the limit of producing the pollutant. Unlike VW and its defeat device, these automakers aren't actually breaking the rules. The vehicles perform up to the NEDC lab test for emissions, but those results simply aren't translated to the street. "The VW issue in the US was purely the trigger which threw light on a slightly different problem in the EU - widespread legal over-emissions," Nick Molden from Emissions Analytics said to The Guardian. A big fight to decide the future of this issue appears to be on the horizon. Automakers claim that they can't meet the next round of tightening emissions regulations and are asking for compromises. Although, spokespeople for Mercedes and Honda told The Guardian that the brands would be in favor of the stricter rules. Meanwhile, some European governments began backtracking their support of diesels well before this scandal came to light. The added scrutiny certain hasn't helped the future of the oil-burner. Related Video:

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.

Volkswagen reveals updated Sharan minivan for Europe

Volkswagen's experiment with rebadging Chrysler minivans as the Routan may not have gone so well for the German automaker in North America, but overseas it offers vans of its own. Even aside from the fullsize Crafter and Transporter vans sold by Volkswagen Commercial Vehicles, the passenger car division offers its own minivans like the Touran and the Sharan. Now it's revealed an updated version of the latter. The VW Sharan was first introduced back in 1995 and entered its second generation in 2009, built in Portugal alongside the Seat Alhambra and offering seating for seven in its five-door form. The new model looks largely the same as the existing one, but benefits from new taillights and a revised interior. But most of the upgrades are found under the skin. There's an array of turbocharged and direct-injected engines that are now up to 15 percent more efficient than those found in the existing model, with two gasoline engines ranging in output from 148 horsepower to 217, and three diesels producing 113, 148 and 181 hp. Along with the updated powertrain options, the revised Sharan also gets a host of new safety and convenience systems, including automatic post-collision braking, Front Assist with City Emergency Braking, Lane Assist, Adaptive Cruise Control, Park Assist and Blind Spot Monitor. Inside, the infotainment system has been upgraded as well. The updated Sharan arrives hot on the heels of the new Caddy released earlier this month and just in time for the 2015 Geneva Motor Show. Wolfsburg, 18 February 2015 Show premiere of the Sharan in Geneva - Even more technical highlights for the popular Volkswagen MPV - New TSI and TDI engines* are up to 15 per cent more fuel efficient Volkswagen is presenting the technically updated Sharan at the Geneva International Motor Show. Numerous new convenience and assistance systems make the family-friendly MPV one of the most advanced models in its segment. A wide range of infotainment systems also guarantees full connectivity to many smartphones and tablets. At the same time, the fuel economy of the petrol and diesel engines* was improved by up to 15 per cent. The updated Sharan will arrive on the German market this summer; advance sales begin in April. Along with the standard Automatic Post-Collision Braking System, which automatically initiates braking after a collision if the driver is no longer able to intervene, numerous optional assistance systems are available in the updated Sharan as well.