We had the problem as well. In our S75D, it would often take minutes for the car to wake up. We never had it diagnosed because we knew what the problem was. We just had the infotainment upgrade done on that car since we didn't want to try selling it with eMMC issues. Our S100D had the infotainment upgrade done last year because it was experiencing problems as well and we knew the infotainment upgrade would fix the issue. Our oldest Model S also shows as ineligible. It didn't have the upgrade done so it should be covered by the recall.My MCU Failure didn't go completely black. it hung up several times and had to be rebooted while driving. I reached out and said I had symptoms of an MCU failure and told them what was happening. It says I am eligible for reimbursement. whew!
I have not had much luck with my Model S lately. Besides the $2650 (tax included) for the MCU, a few months later in October - $900 needed for tires (they lasted just 10 months), December $800 for a battery heater, January 12v battery $220, February $500 rear axle seals leaking, Just 2 days ago - Driver side door handle (3rd generation without microswitches).... I told my wife I am about to divorce Tess and order a new Model 3.