Have a nice evening in the round. I’m new here because I bought my first Renault, a Trafic III 125 dCI box, and picked it up today. Since it is supposed to be a hobby car, I have no high demands but am thoroughly positively surprised. Despite the low performance it drives really well and the driving comfort, for which it is actually a commercial vehicle, fits very well for me. I bought it with year of construction 2018 and 74 tkm. On the way home everything went well. I clicked something through the on-board computer. I noticed the AdBlue at first stood at 62%. At some point I read 56%, but did not think about it. After about 50km the “screw key” and the engine light went on (instruction means “control lamp of the exhaust detoxification system”. On the display there is an exhaust gas cleaning system check (think I). AdBlue now stands at 40% after about 80km. Here it has stabilized, I have now driven extra to a stand of 150km -> AdBlue 40%. So I would have expected it. Now the good question, does any of you know that and how can I get the checkers out again? Many greetings from Ulm Dieter