I have the TCM, transmission computer and the transmission selector switch or mutlifunction switch (goes by many names) for the automatic transmission of a '99 2.8 A4 Avant

bought these for elimination purposes, both parts worked fine and my problem turned out to be an good old oil leak; transmission fluid and differential gear oil do not play well together

anyway, good parts up for grabs since I do not need them anymore

TCM 8D0 927 156 BQ

Multi Function switch, round plug make ZF 0501 209 986

the switch may fit other gear boxes, years as well, check the number and plug
the TCM is a one on one replacment if the numbers match

I will also list both on ebay for $165 each which is what I paid for them, Or Best Offer.