Took mine to my local dealer today for intermittent "Check stop and start" notification. As stated in the handbook, take it to a dealer. Also have an issue with split rear door seals.... a known problem and a different thread. After extensive testing the guy came back and said he had found an issue with the aircon controller, which he had reprogrammed and also with the battery. He said his test showed that the battery was good, though it is only holding around 80% charge. This is one of the triggers for the stop start, but as his test says it's a good battery Renault would not replace the battery under warranty.