I have the same problem with the auto gearbox at the present time and it is in the Renault dealership. After 3 days they have not found the cause. Fortunately it happened at home so I was not left stranded. I got in the car to start the engine, engine started then a message popped up saying "check auto gearbox". I placed it into drive and it will only go through first gear then drops into neutral. I would suggest anyone with this problem goes to their dealership asap. When I get mine sorted I will report further.