The commission confirmed the inspection had taken place on 16 October at the premises of an unnamed car manufacturer in Germany.
Separately, BMW confirmed to Reuters that EU antitrust staff were in Munich this week to search its offices.
The inspection was “related to Commission concerns that several German car manufacturers may have violated EU antitrust rules that prohibit cartels and restrictive business practices (Article 101 of the Treaty on the Functioning of the European Union), the Commission statement said.
If the inspection confirms the allegations, this would represent one of the largest antitrust cases in German economic history. The car industry has been the pinnacle of the EU’s most powerful economy.