Johannes,
here is the link to the 13 meter skid pad run that has also failed. When i made changes to the Radiator assembly, some of the mates moved and there is a gap at the radiator tubes. If this was not the problem, then the change i had made to the geometry from point you gave me in your previous post was not sufficient to remove this error.
I have ran another mesh with the 19 meter (original mesh) with the updated radiator exhaust geometry and will add the link for that, along with the 7 meter skid pad run that is finishing shortly.
EDIT
Here is the failed mesh for the 7 meter skid pad
Here is the failed mesh for the 19 meter skid pad with revised geometry at the point you specified earlier.
Thank you
Dan