On Tuesday, Volkswagen revealed that 11 million diesel cars worldwide have been equipped with software allegedly used to cheat emissions tests.
The scandal was revealed on Friday when the Environmental Protection Agency ordered Volkswagen to recall 500,000 vehicles sold in the US, including diesel Jettas, Golfs, Beetles, and Passats, as well as some diesel Audi vehicles, for including a so-called “defeat device” in their cars. The defeat device would sense when a car was undergoing emissions testing and allow the car’s emissions control to work properly. However, when the car was operating under normal driving conditions, emissions control systems would not work properly, spewing 10 to 40 times more nitrogen oxide (NOx) into the air than is allowed by EPA regulations.
In the wake of the news, Volkswagen Group’s stock has tumbled, with shares losing more than a third of their value on Germany’s stock exchange.
“Further internal investigations conducted to date have established that the relevant engine management software is also installed in other Volkswagen Group vehicles with diesel engines. For the majority of these engines the software does not have any effect,” Volkswagen said in a statement. “Discrepancies relate to vehicles with Type EA 189 engines, involving some eleven million vehicles worldwide. A noticeable deviation between bench test results and actual road use was established solely for this type of engine. Volkswagen is working intensely to eliminate these deviations through technical measures.”


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