I've just put a video together regarding the most common issues we face with the F355 Spider roof top system. 1. How the system works. 2. What the conditions are for the roof to work correctly. 3. Sensors, locations and adjustments. 4. Hydraulic reservoir and how to refill or top up. 5. Bleeding the hydraulic system 6. Frame adjustments at sides 7. Frame adjustments at the rear 8. Rood canvass skin and cables. Hope it helps a few of you out over the years.