The National Highway Traffic Safety Administrations said Tuesday it is closing a nearly 5-year-old investigation into 241,000 diesel powered Volkswagen vehicles without demanding a recall.
The agency said it was closing the probe into the 2009-12 Jetta, Golf, Touareg, Audi A3 and Q7 TDI clean diesel vehicles after nearly 800 complaints about high-pressure fuel pump failures causing contamination of the fuel system. VW in 2013 agreed to voluntarily install devices designed to prevent owners from misfueling their diesel vehicles.
