A number of German automakers are recalling a number of diesel vehicles to tweak the engine management software to produce less nitrogen oxide (NOx) emissions. Reuters reports that Audi, Mercedes-Benz, Opel, Porsche, and Volkswagen have agreed to recall 630,000 diesel vehicles to tweak engine management software.
The software in question can turn off emission treatment systems to improve engine performance and increase the services interval. Is it legal? Yes, thanks to a legal loophole that allows automakers to throttle back emission treatment systems in certain situations to protect engines. This was discovered in various European emission tests.
In light of the Volkswagen diesel emission scandal, environmental groups and regulators aren't too pleased with automakers using this loophole. In fact, the German motor transport authority (KBA) has questioned whether this loophole could be fully justified.
Source: Reuters
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