Short distances with Antara and gets hot??

Hello, I have found this forum after a search on the internet and have a question about my new Antara. I have been driving a new Antara 2.2 cdti with 184 hp in crystal white since July. A beautiful car and I am very in love. The following problem occurs however, I was already with the friendly one, but unfortunately it did not take me seriously. After short distances (from about 2 km drive distance) and very low temperatures after the engine is on display the additional fan. At that time, I didn’t drive fast, nor did I drive far or it was hot. Air conditioning is also off. I was with my dealer, he played a new software and he wanted to tell me that was due to the air conditioning??!!?? But that was definitely off. I also stood shcon at very hot temperatures in July on the AB in the traffic jam, with climate on full strength and there was nothing. So no fan (not while the running engine or when the engine is off). went now for a time without the additional fan, now it is again since yesterday. I drove 8 km, it was outside 17 degrees (Do you know the problem, I can not imagine that this should be “normal”, as my dealer explained to me. Thank you already for your help Silke