The 'start-stop' system on my new Volkswagen Golf TSI is operating very smoothly and presumably contributing to its relatively good urban fuel consumption. However, I recall some discussion about the risk of turbocharger damage if an engine is switched off immediately following a high-speed run. Unless I over-ride the start-stop system will this situation occur, for example, at traffic lights on a motorway exit slip road? Should I be concerned about it? I also wonder if the life of the starter motor will be significantly shortened.