Hello, I tried this morning (it was 10°C) to turn on the steering wheel heater (with the right small button on the wooden corner wheel). I didn’t notice anything. Therefore, my question, if there is a temperature control in it? There is nothing in the instructions – or is the heating broken? (Have the car been warm for 6 weeks and since it was warm, I haven’t used the steering wheel heater yet.) Thank you for your help! Julian Severin