Hello Volvo driver, yesterday came message “motor system requires maintenance”. Was today at the friendly and he has read out the error and that means that the additive would be all. Measurements, however, showed a level of 12/15, so almost completely. And since the update did not bring, he thinks that the level indicator of the additive spins. Does anyone know the problem ? Is this a float like in the carburetor, which clamps ? But more importantly, if additive is present, the soot burning then works still correctly or is prevented by the error message the burning of the soot ? In clear text, Can I continue until the next 60 000 km are full ?? But have no desire to be dragged off on the highway due to power drop. Thanks in advance, Volker