German luxury carmaker BMW has denied reports that it formed a cartel with its rivals Volkswagen and Daimler to install emissions treatment systems that were inadequate to do the job assigned to them.
BMW, Daimler (the parent company of Mercedes-Benz), Volkswagen, Audi and Porsche were accused by the Der Spiegel magazine of illegally colluding together for decades on pricing and technology including emissions treatment systems used for diesel vehicles.
Der Spiegel also claimed that the manufacturers agreed in 2006 to limit the size of the tanks used to hold a chemical solution (AdBlue) that helps counterbalance diesel emissions emitted by vehicles which meant that the solution did not last the time between two oil changes.
On Saturday, the European Commission on Saturday stated that Antitrust Regulators from the European Union have opened an investigation into the allegations of illegal collaboration between the German car manufacturers.
BMW released an official statement to make its position clear over the cartel allegations. BMW stated, "As a matter of principle: BMW Group vehicles are not manipulated and comply with respective legal requirements. Of course, this also applies to diesel vehicles. Confirmation of this is provided by the results of relevant official investigations at the national and international level. The BMW Group categorically rejects accusations that Euro 6 diesel vehicles sold by the company do not provide adequate exhaust gas treatment due to AdBlue tanks that are too small."
A diesel engine has the highest thermal efficiency of any practical internal or external combustion engine and was invented by German inventor and mechanical engineer Rudolf Christian Karl Diesel.
The accusations of a cartel between BMW, Volkswagen and Daimler on diesel emissions equipment is another hammer blow to the reputations of the German carmakers and is not something they can afford after the humiliation that was the Volkswagen Dieselgate scandal. If the allegations are proven to be true, it could be the death knell for diesel engines.