I swapped my winter wheels on (they don't have pressure sensors), and the TPMS was not happy (it was showing a yellow warning in the DIS).

It's trivial to disable the TPMS for winter....<ul><li><a href="http://forums.audiworld.com/vag/threads/2825.phtml">http://forums.audiworld.com/vag/threads/2825.phtml</a</li></ul>