Help! Just acquired 96 Audi A4 B5 which had been parked for a few months with a starting fault. Had some work done including a battery change and now have an intermittant flashing warning light which I am assuming is an immobiliser problem. Strange thing is car will start once after new battery is connected but not on subsequent attempts. I have spoken to other members on this site and they have suggested a VAG COM diagnostic is required- is there anyone nearby who could help??