I have had my S for 9 months & still don't fully understand the auto HVAC. Now the weather here is cold, 28 degrees F. and lower in the mornings, it is becoming an issue for me. When starting cold, no matter what the auto temperature is set at, the fan comes on within 1 to 2 minutes. It is blowing cool air. I have been shutting it off to give the engine a chance to heat up the air it is blowing. Then after setting on high for a while, and it gets very toasty, the fan never will drop below 4 bars, again I have to adjust. When I adjust the temp down, the blower still never drops below 3 or 4 bars even though there is plenty of heat. Help me understand how this works so I can adjust my behavior to better take advantage of "auto".