Trying to discover what the standard values are for the air flow map motor potentiometer hot and cold end-stop values. My 1997 A6 has a problem outputting cold air and I believe the problem may be to do with this potentionmeter. It's working (moves) but think it may not be operating across the whole range.

The codes can be accessed via the on board diagnostics tool (see http://audiworld.com/tech/int5.shtml).