Skip to main content
Friday, November 13, 2026Nov 13

What we know: the Volkswagen emissions test fraud scandal

In this March 12, 2015 picture Volkswagen CEO, Martin Winterkorn, looks at his watch.  during the anual press conference of Volkswagen AG in Berlin. Volkswagen CEO Martin Winterkorn said Wednesday, Sept. 23, 2015 he is stepping down.  ( Jochen Luebke/dpa via AP)
In this March 12, 2015 picture Volkswagen CEO, Martin Winterkorn, looks at his watch. during the anual press conference of Volkswagen AG in Berlin. Volkswagen CEO Martin Winterkorn said Wednesday, Sept. 23, 2015 he is stepping down. ( Jochen Luebke/dpa via AP) In this March 12, 2015 picture Volkswagen CEO, Martin Winterkorn, looks at his watch. during the anual press conference of Volkswagen AG in Berlin. Volkswagen CEO Martin Winterkorn said Wednesday, Sept. 23, 2015 he is stepping down. ( Jochen Luebke/dpa via AP)

BERLIN (AP) – Just one week ago Volkswagen was a company oozing confidence, the world’s best-selling automaker with a global brand that appealed to car buyers seeking trustworthy German engineering at an affordable price.

Since then, the company’s fortunes – and its share price – have crashed amid a scandal over rigged emissions tests. Here’s what’s known about the Volkswagen affair so far:

___

HOW DID IT START?

Researchers at West Virginia University, tipped off by an environmental group, conducted tests on several diesel vehicles and discovered that two Volkswagen models, a 2012 VW Jetta and a 2013 VW Passat, had much higher emissions than permitted. They reported their findings to the U.S. Environmental Protection Agency and the California Air Resources Board in May 2014, but VW stalled by blaming the problem on technical issues. Then EPA announced Sept. 18 that Volkswagen had skirted clean air rules by cheating on tests of its diesel cars. Volkswagen CEO Martin Winterkorn issued an apology, stating that he was “deeply sorry that we have broken the trust of our customers and the public.”