I'm hoping someone can help me. I am occasionally getting an issue where the traction control light comes on for no reason at all and the gearbox gets stuck in 5th gear. I have to turn the car off to reset, then it's fine. Once the light is on, i can't even use the triptronic, but if i drive it in triptronic before the light comes on, then i still can select other gears. Any help would be greatly appreciated.