I have been driving a December 2014 registered A3 2.0TDI-184 Sportback S-Line s-tronic demonstrator for several hours today. I also have a copy of the A3/S3 Owner's Manual dated 10.2013 and the description of the Start/Stop system seems to be slightly wrong. When I stopped at a level crossing the engine cut out and the Start/Stop symbol appeared on the DIS. The s-tronic was in Manual mode. I switched the 'handbrake' on and took my foot completely off the brake pedal and the engine did not start up again. On my existing 8P it would have done and the OM for the 8V says it would as well. So I sat there for a few minutes whilst several trains passed. When the barriers went up I just pressed the accelerator and the engine started and I was on my way. All the time I was wait the stick was left in the Manual position. I understood from the OM that this would be the case if the car was fitted with Hold Assist but it is not. If this is in fact how it will work with a new 8V that's great. It means I can stop, the engine will cut out and I don't have to sit there with my brake lights shinning in the face of the driver behind if I just put the handbrake on. I understand Hold Assist will keep pressure in the brake lines and keep the brake light on. Perhaps I will not be ordering Hold Assist after all.