After our TGM was to the “inspection” (change of oil with various filters ) it only starts after unspeakable gluing and needs a good minute until he has found his stable stand gas speed. After we had claimed, the vehicle was parked again for a day in the warm workshop – after that the error was still there. The “master” said that the repeatedly repeated airing would have been unsuccessful and probably a dirt particle when filter change into the Now we have to wait until the corresponding valves are ordered …. What can this really happen when changing the diesel filter? Or better: Who has already done this and what is really involved in this excuse?