Is your clutch pedal feeling a little funny? This could be your issue. If left ungreased (or using the wrong grease) the clutch release bearing will wear at this guide. If you've got 150+ miles on your S2000, you may want to just replace this if you're already pulling the trans for a new clutch.
DomiWorks PCB's for your BMW 7sp DCT Mechatronics Make the modification easier and more reliable, no splices required. The board comes with pre-installed resistors so no need to add them in your harness. Includes wires for the internal modification.