Hello joy have the problem with the heating again or the heating is only lukewarm no matter what I set it did not show warmer. In summer the climate works quite normal, only in winter no warm air. The climate box the motors are all in order.,Only the circulating air flap did not replace engine goes again. But still lukewarm air. The auxiliary heating is not possible either or VCDS does not find it. So probably circuit board defective. I don’t know any more.. Would me look forward to some tips LG.