So, that's interesting - Dieselgate fallout is now hitting Euro 1 through 4 models. That includes standards that took effect for what we'd call model year 1993 (although the Mk2 ECOdiesels/Umweltdiesels adopted them early), all the way through the standards that the last PDs with DPF had to meet. (The Euro 5 and 6 engines are CRs.)Embracing the outcome of the German National Diesel Forum earlier this week, the Volkswagen Group announced that it will offer a trade-in incentive for Euro 1 - Euro 4 diesel models which will apply across all brands in the Group. In addition, the software update for Euro 5 and some Euro 6 diesel vehicles will be available throughout Europe and not just in Germany.