A year of digging through code yields “smoking gun” on VW, Fiat diesel cheats

Researchers from Bochum, Germany, and San Diego, California, say they’ve found the precise mechanisms that allowed diesel Volkswagens and Audis to engage or disengage emissions controls depending on whether the cars were being driven in a lab or driven under real-world conditions.

Once the researchers were able to study the code running on the faulty diesels, they discovered that Volkswagen’s defeat devices were far more nuanced than anything found previously. Levchenko told Eurekalert that the “Volkswagen defeat device is arguably the most complex in automotive history.”