Even when word did get out, VW's internal culture, which pressured employees to achieve every goal, kept changes from happening. According to Reuters, a worker involved in the cheating came clean to a senior manager from another division in 2011. However, the manager didn't pursue the problem. In another example of the repercussions of this stressful corporate lifestyle, engineers admitted in November that they cheated on CO2 tests to achieve VW's goals. The automaker eventually found around 36,000 vehicles in Europe with improper emissions rating after initially suspecting 800,000.
To get to the bottom of this cheating, VW's internal investigators offered job protection to whistleblowers that came forward before November 30. About 50 workers eventually discussed what happened, including those that brought the CO2 issue to light.