Hello at my Opel the control light engine control had started after a cold start. at the read out stood inside particle filter sown 60.000km which is naturally very early at the mileage of the errors was deleted by the ADAC after a long motorway ride the error did not occur any more.Now I noticed however that from the engine room exhaust gases leak when the engine is cold the exhaust gases come from the dosieventiel for AdBlue has someone exaggeration with the problem?