Audi has been fined €800 million ($1.3 billion) for regulatory breaches in relation the V6 and V8 turbo-diesel engines engulfed in the Dieselgate emissions scandal.
The fine was handed down via an administrative order from the Munich public prosecutors office. In a statement, Audi says it "accepts the fine, and, by doing so, admits its responsibility".
Audi says the V6 and V8 diesel engines in question did meet regulatory requirements, and it also "failed to discover" diesel engines supplied to it from Volkswagen between 2004 and 2018 had an "impermissible software function".
Both the Audi- and Volkswagen-developed engines were engineered to limit emissions during laboratory testing, but work in a normal non-compliant state when being driven on the road.
The €800 million punishment comes in two parts: the maximum €5 million ($8 million) fine for breaching regulations, and €795 million ($1.29 billion) fine for profiting from that breach.
This latest admission of guilt closes off the Dieselgate regulatory proceedings against Audi in Germany, but there are still criminal and civil cases pending against the luxury carmaker and its parent company.
At the beginning of this month, Rupert Stadler, CEO of Audi between 2010 and 2018, officially parted company with the automaker. He is currently being held in detention as prosecutors fear he will tamper with their investigation.
Earlier this year Volkswagen was fined €1 billion ($1.6 billion) for regulatory breaches relating to the EA288 Gen3 diesel engine sold in the USA and Canada, and the EA189 diesel motor sold throughout the world.