Hello - I’ve just bought a 66 registration Transporter. It checks as ULEZ compliant on the TfL website, but it’s actually a Euro 5 engine. I know that from the seller, various car check websites and the emissions values on the V5. I was told by the previous owner that it qualifies for Ulez despite being Euro 6 because of the Bluemotion Tech. Everything online confirmed that vans registered from Sep 2016 had to comply with Euro 6 standard or equivalent. I’m not actively seeking to start paying the Ulez charge - but I’ve got nagging doubts about why it’s Euro 5 and whether a TfL website update will turn it non compliant overnight. Does anyone know if VW got an exemption to register some Euro 5 engines in Sept 2016? Or whether it modified some of its old stock to meet the new standards? Many thanks.