Four More Carmakers Reportedly Fail Emissions Tests

Posted on October 9, 2015

Mercedes-Benz, Honda, Mazda and Mitsubishi have joined the growing list of manufacturers whose diesel cars are known to emit significantly more pollution on the road than in regulatory tests, according to data obtained by the Guardian.

All the diesel cars passed the EU’s official lab-based regulatory test (called NEDC), but the test has failed to cut air pollution as governments intended because carmakers designed vehicles that perform better in the lab than on the road. There is no evidence of illegal activity, such as the “defeat devices” used by Volkswagen.

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Related Topics: automakers, emissions reduction, Mercedes-Benz, regulatory enforcement, Volkswagen

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