1. Emissions testing is no longer conducted just in the lab, but also on the road.
As the football saying goes: “Performance on the pitch is what matters.” When measuring emissions, the same applies to performance on the road. For this reason, according to the Euro 6d-TEMP standard and the even more far-reaching Euro 6d standard, the lab measurements according to the WLTP are supplemented by the so-called RDE test (Real Driving Emissions). Pollutant emissions (including nitrogen oxide and particles) are measured in vehicles directly on the road and compliance of limits with conformity factors is checked.
The adjacent graphic illustrates how complex these measurements are. For more details, please see this press kit chapter on the media website.