Picked up my new A5 Avant Black Edition Hybrid on 30th April. Everything fine with and spending time understanding the features which are numerous and to some extent overwhelming., Left home Sunday morning to play golf and of course to show of new car and then as i was about to leave the car failed to start. I got numerous messages telling me - High Voltgae system had failed and to not drive the car -AC Charging system is not available. amognst others. After 25 minutes or so the car started and I managed to drive it home. It has now been with Audi since Monday and they are waiting for advice from Audi Technical in Germany as they are unable to trace the fault. Apprarently this could take anything up to ten days. So as of today the Audi dealer has had the car long than me. Has anyone had a similar experience with A5 hybrid?