<center><img src="http://pictureposter.audiworld.com/52091/oilpressure.jpg"></center><p>I know this came up recently and I STFA and came up with part number 068 919 081. This part number corresponds to #17 in the picture, which shows it as the small one. I though it was the big switch (#19)?

IIRC there are two oil pressure switches and the gauge sender. The switches trigger at different pressures, and the autocheck chooses which switch to use for the warning indicator based on engine RPM.

All this recent talk here and on Audifans about leaking oil pressure switches got me worried.

BTW, my S6 just turned 150,000 miles.