My transit has problems with the soot filter. Although I renewed it before 20,000 km, it is now closed again. I wanted to carry out a stationary regeneration by means of Vident diagnostic device. However, the device now always shows at the engine preheating temperature is not reached. This is still displayed after 20 km of motorway ride. The last time it finally worked on the fifth time. This time I have tried it about a hundred times and it always shows that the Does anyone have a tip for me?