Volkswagen Cars Aren’t The Only Ones Releasing More Pollutants Than They Should – Huffington Post

New diesel cars from Renault, Nissan, Hyundai, Citroen, Fiat, Volvo and other manufacturers have been found to emit substantially higher levels of pollution when tested in more realistic driving conditions, according to new data seen by the Guardian.

Research compiled by Adac, Europe’s largest motoring organisation, shows that some of the diesel cars it examined released over 10 times more NOx than revealed by existing EU tests, using an alternative standard due to be introduced later this decade.

Adac put the diesel cars through the EU’s existing lab-based regulatory test (NEDC) and then compared the results with a second, UN-developed test (WLTC) which, while still lab-based, is longer and is believed to better represent real driving conditions. The WLTC is currently due to be introduced by the EU in 2017.

The biggest polluters according to Adac’s own data are:

  • Nissan’s X-Trail 1.6 cDi, which produced over 14 times more NOx in the WLTC test. A Nissan spokeswoman said: “We can state unequivocally that we are committed to upholding the law and meeting regulations in all markets.”
  • Renault’s Espace Energy dCi 160 emitted over 11 times more NOx in the WLTC test, with Renault’s Grand Scenic and Kadjar also among Adac’s top 10 polluters. A Renault Group spokesman said: “The group complies with all regulations and legislation for the markets in which it operates. Its vehicles are not equipped with defeat devices.”
  • Adac found Jeep’s Renegade 2.0 emitted 10 times more NOx while other cars producing at least six times more NOx included Hyundai’s i20 1.1, Fiat’s 500x 1.6 and Citroen’s DS5 Hybrid4. “Hyundai Motor abides by the testing regulations and methods of each region where it sells cars including Europe,” said a spokeswoman. Citroen, Fiat and Jeep did not respond to requests for comment.

Reinhard Kolke, head of test and technical affairs at Adac’s state-of-the-art test centre in Bavaria, told the Guardian: “If all cars complied with [the official EU NOx limit], we would have solved all the worst health effects. Every consumer has the right to expect all manufacturers to do this. But still there are these gross emitters.”

The controversy over high nitrogen oxides (NOx) emissions from diesel cars was sparked when Volkswagen, then its Audi and Skoda brands, were caught using software in millions of cars to cheat pollution tests. There is no suggestion of cheating in Adac’s analysis, but only a quarter of the 79 different cars ADAC tested using the WLTC standard matched their official performance on the existing EU test.

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