Image source does not exist News Release: 2017-05-19 CARB announces emissions modification for more VW 2.0 liter diesel vehicles

Release #:17-36

ARB PIO: (916) 322-2990

Dave Clegern
(916) 322-2990

CARB announces emissions modification for more VW 2.0 liter diesel vehicles

Generation 2 automatics cleared for repair, Generation 2 vehicles with manual transmissions are not approved for modification

SACRAMENTO - Eleven thousand more Volkswagen 2.0 liter diesel vehicles in California have been approved for emissions modifications required to reverse the effects of “defeat devices” installed by the company. The modification approval for the so-called ‘Gen 2’ automatic 2-liter diesel engine found in model years 2012-2014, was announced today by the California Air Resources Board (CARB). That approval covers about 10,600 vehicles in California.

There are approximately 590 vehicles from this group with manual transmissions in California, and they are not covered by today’s approval. VW has been unable to demonstrate the required compliance, and is reevaluating its proposed emissions modification for these cars.

“Today’s approval is another important step in efforts to repair the environmental harm caused by these vehicles and their excess emissions in California, while giving the affected consumers another choice for resolution” said Executive Officer Richard Corey. “We are advancing on the technical fixes per the settlement agreement as expeditiously as possible.  So today’s approval is not the end of the story. VW must still successfully modify thousands of earlier model vehicles, or prepare to buy them back.”

The Generation 2 vehicles are among more than 70,000 2.0 liter diesel cars with defeat devices sold in California. There are nearly a half-million 2.0 liter VWs and Audis with defeat devices nationwide. In the worst cases these vehicles were emitting up to 40 times the allowed levels of nitrogen oxides (NOx). NOx is a primary contributor to ozone (smog) and California has the worst areas in the country for ozone pollution.

The Gen 2 automatic cars now join the Gen 3 cars which received their modification approval on January 6, 2017.  

Modifications for the approximately 49,000 Gen 1 cars, the earliest models from model years 2009-2014, are still being evaluated.

Engineering is also underway for possible modification of the 17,000, 2009-2016, 3.0 liter diesel vehicles which have defeat devices. Modifications have not yet been approved for those vehicles.

Owners of these vehicles can learn more at:

CARB’s VW Infromation Web page is here:

The approved VW 2.0 L Gen 2 (automatic) modification document is available here:

ARB's mission is to promote and protect public health, welfare, and ecological resources through effective reduction of air pollutants while recognizing and considering effects on the economy. The ARB oversees all air pollution control efforts in California to attain and maintain health based air quality standards.