Owned the a4 for a few weeks now but only started driving it fully this week. Bringing the car home I had the blowers on, I got warm so turned them off via the off button on the controls, didnt touch it since. Few weeks later (now) I cant get the heaters to come on at all??? Tried pressing the front screen button so they come on maximum to defrost the window, nothing. Press the blower button which lets you set the speed on the mmi, nothing although the speed does change on the mmi. Am I being dumb and missing something out here? I didn't get to play with the blowers when I had them on so not sure what im doing with it. Where is the actual blower/fan located? I would like to remove it and bench test it. Assuming behind the glovebox?