Germany’s VW AG has promised to repair all the affected eleven million vehicles outfitted with its illegal pollution control systems, but experts are already worried about the possible effects of the fix on the consumers.
According to automotive experts, the solution to the cheating issue that has been found to affect 11 million diesel vehicles around the world would involve modifications to the software and maybe even hardware – the main concern being that owners could be left with vehicles that return worse fuel economy and performance or need additional maintenance. According to the company’s newly empowered chief executive, Matthias Mueller, VW owners will have their diesel-powered models “refitted,” but there were no details offered on what the modifications would include. According to an ex-executive of VW’s US division, the company might get away with only addressing software issues – not hardware – to fix older models and have them comply with US emissions requirements. Experts and US regulators meanwhile said the automaker would need to have two different solutions for two different emission-control systems used in 482,000 diesel cars sold in the United States between model years 2009-2015.
VW was caught cheating and using illegal “defeat devices” by the US Environmental Protection Agency and California’s pollution board and the software was used to enable the use of exhaust scrubbing systems only while the car was tested by the government. VW hasn’t delivered an answer to why they used the cheating method but it has been found it has used two different types of systems – “lean NOx traps,” on older models and Selective Catalytic Reduction beginning with 2012.