Hello everyone, wish you all good and stay healthy. I am new to this group, i hope someone can help me a little. So the car is e53 2004 3.0d 218hp, it has webasto aux. heater with remote, and it was working perfectly. But now from few weeks i realize that it doesn't heat up the cabin like before. It blows almost cold air. The car runs fine ,heated up quickly, when driving the aux. heater works and heats up the coolant fast.I read it through bmw scanner and there are no errors about aux.heater. :/