Moin dear forum! Just registered and already the second question. This time to the standing climate. I read in the instructions that it only runs with cable – I think it is completely ok. Recently my Volvo said something like “pre-climate, since petrol level is too low”. Of course it was still cold, and therefore it was only driven on petrol (-5°C). Since I had to start spontaneously with cold car I suspect that it warms the batteries in the first time before it changes from petrol to E. However, I did not find that exactly in the instructions. My Volvo dealer meant at first however also, that one should always preheat the batteries, that is better. Only what does the petrol stand have to do with it? I thought, he heats and cools electrically. Or am I wrong there? I hope you know more! Many greetings Ben