Kez Casey | Apr 8, 2016

An investigation into vehicle emissions testing, launched by the German Federal Motor Transport Authority, has revealed that the Volkswagen Group was the only manufacturer found to employ emissions defeat devices.

The study did find evidence of other vehicles exceeding the emissions levels quoted in their official test figures, however the variances fell within allowable legal limts and did not indicate the use of emissions-cheating devices.

A full paper detailing the findings is to be released by the German Federal Motor Transport Authority in late April.

The investigative report was compiled after testing 60 different diesel automobiles from a variety of manufacturers.

The test results from each vehicle tested have been sent to their respective manufacturers, with the car companies concerned invited to comment on the test results.

For its part, Volkswagen is facing billions of dollars of losses from lawsuits and class actions launched against the company around the world.

At the same time, news has surfaced of a class action from owners of Mercedes-Benz BlueTec diesel vehicles in the United States, claiming that those vehicles have similarly been fitted with a defeat device.

The lawsuit claims that testing at low temperatures and variable speeds returned emissions results up to 30.8 times higher than claimed figures in vehicles including the E-Class, R-Class, S-Class, ML-Class, GL-Class, and Sprinter model ranges sold in the United States.

While the US EPA has not opened an official investigation into Mercedes-Benz vehicles, it has reportedly requested an explanation from Mercedes-Benz’ parent company, Daimler.

MORE: Volkswagen Group | Diesel | Emisssions

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