The Car and Truck Fleet and Leasing Management Magazine

EPA Broadens Diesel Emissions Testing

September 25, 2015

Photo of 2015 Golf TDI engine courtesy of VW.
Photo of 2015 Golf TDI engine courtesy of VW.

The U.S. Environmental Protection Agency will implement additional testing of diesel vehicles designed to uncover potential software algorithms used to evade federal emissions standards, the agency announced Sept. 25.

The agency sent a letter to all manufacturers informing them about the expanded testing protocol following the revelations that Volkswagen had implemented software that turned on a vehicle's full emissions controls only during testing.

The Sept. 25 letter informed manufacturers that they could expect the additional tests in addition to the standard emissions test cycles during Emissions Data Vehicles (EDV) and Fuel Economy Data Vehicles (FEDV) tests.

On Sept. 18, the EPA accused Audi and Volkswagen of using a software algorithm in its four-cylinder diesels to circumvent federal emissions standards. The cars from the 2009 to 2015 model years could detect when the car is undergoing official emissions testing and turn on full emissions controls only during that test. This would violate the Clean Air Act.

The allegations cover about 11 million models, such as the Jetta TDI (2009-2015), Jetta SportWagen (2009-2014), Beetle TDI (2012-2015), Golf TDI (2010-2015), Golf SportWagen (2015), Passat TDI (2012-2015) and Audi A3 TDI (2010-2015).

Twitter Facebook Google+

Comments

Please note that comments may be moderated. 
Leave this field empty:
 
 

Fleet Incentives

Determine the actual cost of owning and running a vehicle in your fleet. Compare vehicles by class and model.

FleetFAQ

Fleet Management And Leasing Experts

The expert, Merchants Experts, will answer your questions

View All
Sponsored by

In a 24-year fleet career that began in 1964, Helen Smorgans managed fleets for Johnson & Johnson corporate and 10 other J&J companies. She was co-founder of the NAFA New Jersey chapter and also served on the organization's National Board of Governors.

Read more

Up Next

More From The World's Largest Fleet Publisher