Former Volkswagen Group engineer James Liang plans to appeal a 40-month prison sentence for his role in VW's scheme to sell diesel cars that generated more pollution than U.S. clean air rules allowed, according to a court filing.
A federal judge sentenced Liang in August.
Liang, 63, a native of Indonesia but a citizen of Germany, was also ordered by U.S. District Court Judge Sean Cox to pay a $200,000 fine.
Liang, a diesel expert who worked for the automaker for over 30 years, helped prosecutors as they built their case against higher-level VW executives for their alleged roles in a global conspiracy to cheat on diesel emissions.
In a filing with the U.S. District Court in Michigan, Liang's lawyer on Thursday said his client's sentence would be appealed to the U.S. 6th Circuit Court of Appeals.