BERLIN (Reuters) -- Daimler AG said test results from the German environmental lobby group DUH allegedly showing that a Mercedes C class 200 CDI exceeded emissions of nitrogen oxides were "questionable."
DUH said today that the test model, registered in 2011, released NOx emissions that were more than twice the legal limits for Euro-5 standards when tested under new European testing cycles. The group cited tests carried out by the University of Applied Sciences in Bern, Switzerland.
"The test results are questionable as the conditions of the test are not clear. We don't know the specific car, the temperature at the time of the tests, the loading weight," a Daimler spokesman said, in response to the claims.
Fellow German carmaker Volkswagen Group is engulfed in a scandal after cheating diesel emissions tests in the U.S. and admitting that 11 million vehicles worldwide contain software designed to manipulate testing.
DUH accused Daimler in September of also rigging emissions data, charges the company denied. The following month the group said an Opel Zafira minivan had shown excessive NOx emissions, a claim that was denied by Opel.
Renault too has also contested findings cited by DUH that one of its Espace minivans released toxic diesel emissions 25 times over legal limits.
