Hi. I have an intermittent problem with the aircon in my A3 2.0TDI.

From time to time, mostly on a hot day, the Econ mode foreces to stay on. The Auto and De-Mist buttons when pressed don't turn off Econ mode like they usually would. Pressing the Econ button, it goes out when depressed, but comes on again when released - nothing I do can change this.

Does anyone know what the problem could be?

Thanks!