German newspaper Bild am Sonntag reports that Robert Bosch warned Volkswagen as far back as 2007 that it would be illegal to use engine management software in their diesel engined cars.
The newspaper reports that Bosch supplied diesel software to Volkswagen for test purposes. However, the software was used in their new vehicles. It paper claims that Bosch wrote to Volkswagen saying that such use was unlawful.
Last week, a Robert Bosch spokesman told Automotive News Europe that it had delivered components including delivery and metering modules for exhaust gas treatment and common rail injection systems to Volkswagen Group that are now at the center of a probe into rigged emissions tests of diesel-powered vehicles. However, he added that responsibility for configuring handling characteristics of these components lies with Volkswagen.
Separately in yesterday’s Frankfurter Allgemeine Zeitung’s newspaper, it reports that Volkswagen was warned by one of its own engineers in 2011 about their method of testing emissions, cites initial results of a VW internal investigation.