took the car in yesterday and they didnt find anything, they said that if i have the issue while im around the garage i have to come straight to them without switching the car off and back on so the warning is still there. like usual: no warning on the screen = no problem on the computer...sucks. i mean they can make cars that stop by themslves but they cant have a program that doesnt stock all the error codes...
anyways, i think you might on to something as i was in a traffic jam for 5 minutes, reving up moving 5 meters and stopping. I eventually had to turn the Stop start off.