Volkswagen Used Illegal Software to Cheat Emissions Tests: EPA

Stephen Elmer
by Stephen Elmer

Volkswagen may be forced to recall almost 500,000 diesel passenger cars after an investigation revealed illegal software was allowing the vehicles to pass government emissions standards.

A software algorithm, known as a defeat device, used on roughly 482,000 Volkswagen vehicles with four-cylinder diesel engines is able to detect when the car is undergoing official emissions testing, and will activate full emissions controls only during the test.

The EPA says that this results in cars that meet emissions standards while being tested, but emit up to 40 times more nitrogen oxides while driving.

Independent analysis at West Virginia University uncovered the defeat devices. After being questioned by the EPA and CARB, Volkswagen admitted that its cars did contain defeat devices.

SEE ALSO: Volkswagen Hid a Possible Car Hack for Two Years

The EPA says “it is incumbent” on Volkswagen to initiate a recall fix for all the affected cars, although they note that these vehicles are still safe to drive and do not present a safety hazard at this time.

Volkswagen may be liable for civil penalties over the findings, which could total up to $18 billion if the EPA leverages its maximum fine of $37,500 per vehicles.

“Using a defeat device in cars to evade clean air standards is illegal and a threat to public health,” said Cynthia Giles, Assistant Administrator for the Office of Enforcement and Compliance Assurance. “Working closely with the California Air Resources Board, EPA is committed to making sure that all automakers play by the same rules. EPA will continue to investigate these very serious matters.”

Models affected by the issue include the 2009-2015 Volkswagen Jetta, Beetle and Golf. The 2009-2015 Audi A3 is also affected, along with the 2014-2015 Passat.

Volkswagen acknowledged that it has received notice of the investigation. “VW is cooperating with the investigation; we are unable to comment further at this time,” said the brand.

Discuss this story at our Volkswagen Forum

Stephen Elmer
Stephen Elmer

Stephen covers all of the day-to-day events of the industry as the News Editor at AutoGuide, along with being the AG truck expert. His truck knowledge comes from working long days on the woodlot with pickups and driving straight trucks professionally. When not at his desk, Steve can be found playing his bass or riding his snowmobile or Sea-Doo. Find Stephen on <A title="@Selmer07 on Twitter" href="http://www.twitter.com/selmer07">Twitter</A> and <A title="Stephen on Google+" href="http://plus.google.com/117833131531784822251?rel=author">Google+</A>

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  • BUSABRY BUSABRY on Sep 21, 2015

    Cheats, cheats, cheats. I 've never liked vw cars. Over priced, over rated crap, with an undeserved reputation for reliability, that people are asked to pay a premium price for. VW deserve everything that they get over this and hopefully potential customers will take their money elsewhere when buying their next new car.

  • DoctorFeelgoodMD DoctorFeelgoodMD on Oct 08, 2015

    No wonder the NOX sensor is worth over $800 installed after the factory warranty has ended.

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