Check Gear Box – Problem 95er 900-II V6 Automatic

Hi together, for more than two weeks I’ve been a pedestrian grrrrr…. And that where the sun is coming out! At first a speed sensor was probably defective, so the machine just didn’t start. Problem finally fixed, but now: Cockpit: “Check Gearbox” lights up permanently. The car only runs in 3rd gear, the automatic just doesn’t switch. Diagnosis said: Switching layer sensor defective. It’s replaced. But still the same problem… Only the third gear in “D” is active. I’d love to go cabrio again, now that it’s getting warm, outside… Greetings hungry