"Volkswagen was reportedly warned about rigging emissions tests on its
vehicles years ago, not only by one of its suppliers but also the German
car giant's own engineers.

According to the Frankfurter Allgemeine Sonntagszeitung newspaper, VW's
technicians flagged up concerns about the engine management software the
company was using in its motors back in 2011.

It was also reported today that VW had been cautioned eight years ago
not to rig the tests by its software supplier Bosch. According to Bild
am Sonntag, Bosch had written to VW in 2007.

The cheatware detects when a motor undergoes emissions testing, and then
fudges the engine output to pass the examination by cutting performance
to meet emissions standards for nitrogen oxide."

http://www.theregister.co.uk/2015/09...e_ye ars_ago/

--
Global warming is the new Margaret Thatcher. There is no ill in the
world it's not directly responsible for.