Hello together….. I had written about it before, but unfortunately we could not fix the defect yet…. My engine sometimes gets too hot in the “stop at go / traffic jam”…. Not always, but sometimes….. I visited the Black Forest myself yesterday and on the return trip there was again the problem… We could not find a Macke yesterday (so during the day) ….Doesn’t lose any cooling fluid, the fan starts from the cooler, the cooler works so far correctly….Errors were also not stored… Could it be that the fan or the associated relay has a Macke and now and then don’t start?! Do you have any ideas?! VG Bird