Bild am Sonntag reports us investigators uncovered evidence suggesting Mercedes diesel vehicles featured software that altered the emissions system behavior. The software is similar to Volkswagen's, according to the German newspaper Bild am Sonntag.
This is not the first time Mercedes-Benz cars have been accused of being equipped with emission cheating software. Since the Volkswagen scandal, regulators both in the USA and Europe have placed intense scrutiny on other automakers' diesel engines, including Mercedes.
The authorities know the documents and no complaint has been filed.
Information relating to the apparent Mercedes-Benz diesel engine emission manipulation software measures comes after news that the German Ministry of Transport is set to demand the German vehicle maker issue a recall for diesel engined versions of its Vito commercial van due to discrepancies.More news: U.S. routs Slovakia to reach Olympic men's hockey quarter-finals
Daimler reportedly then, like Volkswagen, developed software with several functions to be able to trick USA regulators. They say the engine management software had a function called "Slipguard" that was able to tell when the vehicle was being subjected to lab tests, and while that isn't incriminatory in itself, it certainly raises a few questions.
Basically, this software enables the diesel models to pass UM emission tests for a limited period of time.
Bild am Sonntag also alleged the documents showed that one Daimler function, known as Bit 15, disabled what appears to be the car's catalytic converter ("exhaust aftertreatment", according to Google Translate) after 26km (16.2 miles).
AdBlue is a fluid that can break down nitrogen oxide, which forms smog and acid rain.
Passenger vehicle diesel engines have been the focus of clean air concerns since 2015 Volkswagen admitted to installing defeat software on 480,000 diesel engine passenger cars in the United States, allowing the cars to emit up to 40 times the legally allowed emissions. It told Der Spiegel that it "would take all legal means against the allegation of a defeat device".