1996 Audi a4 auto v6
Hello, I would like to see if someone would be able to help me! my son has an 1996 Audi a4 auto v6 right hand drive, he has been getting a flat battery over the last few months every now and then, we either jump start it or recharge the battery! I now something must be draining the battery but not sure what it is, anyway 2 weeks ago the same problem car had flat battery in the morning so I jump the car and all was good, my son called me some hours later to say the car won't start, he said he got in to start it but battery was flat, so his friend jump started the car got it started my son went through the reset function with the auto gear lever to reset idle function then the car stooped, he tried to restart it but engine turned over but no start also lost power to windows dash and sunroof,I had the car towed home and have had it sitting in my front yard trying to figure it out.
Your help would be much appreciated.