![]() ![]() Results presented at public forum and published, getting attention of EPAĮPA repeats tests, and contacts Volkswagen for explanation of poor real world NO x emissions Instead, CAFEE finds discrepancies showing poor on-road emissions. ![]() International Council on Clean Transportation asks WVU CAFEE to help demonstrate the benefits of US diesel technology, hoping to have Europe follow suit Volkswagen diesel sales in the US rebound, Clean Diesels win several environmental awards, receive tax breaks In Europe, some models are now being described as Euro emission class 5, a change from class 4 in 2008. Cars with the test-rigging software are sold in the UK. Some cars are described in Europe as "EU4 emissions standard (EU5 compliant)". Volkswagen announces new Clean Diesel cars. ![]() Bosch allegedly warns Volkswagen not to use its software illegally Volkswagen suspends sales of current diesel lines awaiting technology to meet new standards. Phase in period of diesel emissions rules NO x limit decreasing from 1.0 g/mi to 0.07 g/mi New US Tier 2 rules established to replace Tier 1. International Council on Clean Transportation, West Virginia University, Volkswagen Group, US EPA, other regulators A 2010 Volkswagen Golf TDI with defeat device displaying "Clean Diesel" at the Detroit Auto ShowĮngaging full emissions control only during testing ![]()
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