About a month ago the car was turning over but not starting it sounded strong when turning over but wouldn't ignite. I brought it to a local garage and the only fault he could find was a battery fault so I went to Audi gave my chasis number and they said they had 2 different batteries for the car an 80amp or a 95amp. They only had the 80 in stock so I bought it, fitted it and the car was starting fine, left the parking lights on last week for around 15 mins and know it's acting up again. And today it's turning over strong but not running Engine number is bfc029710 Does anyone know what the correct battery the car needs????