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Audi says fixing diesel emission problem is simple

Audi reportedly has a simple repair nearly ready to fix the emissions problem on 85,000 vehicles with the 3.0-liter TDI V6 in the US. "Swift, straightforward and customer-friendly solutions are in discussion," company exec Rupert Stadler told workers in Germany, according to Reuters. In late November, Audi announced that the 3.0 TDI had three previously undisclosed auxiliary emission control devices, including one that was potentially considered a defeat device under US law. At the time, the German automaker claimed it could repair the problem with just a software update. Stadler's statement indicates that just such a simple fix might be on the way. Even before Audi's disclosure of the emission control devices, the Environmental Protection Agency issued a notice of violation against the 3.0-liter TDI for allegedly having software to defeat emissions tests, and the agency later expanded the scope to any vehicle with the engine from 2009 through 2016. The affected models include the Audi A6, A7, A8, Q5, Q7, Volkswagen Touareg, and Porsche Cayenne. New diesel versions of these vehicles have a stop-sale. Audi offered owners of affected vehicles the same $1,000 Goodwill Package that parent company VW offered to its affected diesel owners. The money is split up into a $500 gift card and $500 to spend at the Audi dealer. The package also comes with extended roadside assistance. Audi needs to find a solution quickly because it's under a 45-day deadline from the California Air Resources Board to submit a recall plan for the 15,000 vehicles with the 3.0 TDI in the state. The automaker also must include a report on any effects to fuel economy and performance from the proposed repair. 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.

VW quite interested in solid-state batteries for EVs

Volkswagen is about to make a decision about which advanced battery technology the automaker will seriously investigate to give its electric vehicles more range. VW will decide by July if it will use solid-state batteries made by US-based QuantumScape Corp. in future EVs, according to Bloomberg News. Last year, VW bought a five-percent stake in QuantumScape, which was founded by ex-Stanford University researchers. The lure is that QuantumScape's solid-state batteries may provide a single-charge range of as long as 430 miles. That's more than three times the current range of the VW e-Golf electric vehicle the company recently started selling to the public and is substantially longer than the single-charge range of the Tesla Model S electric sedan. The batteries are also fireproof, making VW's potential decision one with an eye towards more vehicle safety. Solid-state battery technology, in which solid lithium electrodes are used instead of liquid electrodes such as those in lithium-ion batteries, are the subject of research at other automakers and suppliers as well. Toyota says they could be here by 2020. Recently, the cordless vacuum cleaner maker Dyson acquired a $15-million equity stake in Michigan-based battery maker Sakti3 with the idea of using the startup's solid-state batteries in its products. General Motors also has a minority stake in Sakti3, which was spun off from the University of Michigan.