Just curious. How did you find out your heatpump was not working. I'm In a situation where I experience loud buzzing from the car when I stop for e.g. red light. The buzzing is lower or stops when I drive off again. I can make it disappear by switching on ECO. I'm also struggling with preheating the car battery. Seeing the snowflake and not disappearing even after an 1 long trip.Befor trip var was asked to preheat via timer and the cable connected. ThanksRebooting the Infotainment did not restore the sound for me.
Car is fixed, new heat pump (rev 3), new Tcam battery and P2.5 loaded.... everything works again.