<center><img src="http://images2.fotki.com/v15/photos/2/27409/156983/22.01.03Intake6air15.5-or.jpg"></center><p>..."hidden function" for a 2001.5 A4? (If you don't know what I mean see link below for tech article.) I've got this list of
codes but not one of them is clearly the air intake temp for the engine post-intercooler. Here are my prime
suspects:

CODE Displayed Value
4 Digital value of fresh air intake duct temperature sensor
7 Digital value of ambient temp sensor at fresh air blower
8 Digital value of temp regulator flap motor potentiometer [what the hell is THAT?]
9 Delta value of temperature regulator flap
10 Non-corrected specified value of temperature regulator flap


There are some other air temp things but they are pretty clearly involving air inside the cabin. (You can see the
whole list at the link below.)

Pic is from a thread on TT forum regarding this. The guy (greatwhitecaper) refers to the same tech article but he
didn't specify what code #. [http://forums.audiworld.com/tt/msgs/806544.phtml]<ul><li><a href="http://www.audiworld.com/tech/int5.shtml">Unlocking the Secrets within the Climate Control Panel</a></li></ul>