Can anyone give me any advice on the following problem? I have a 2005 plate A3 2ltr TDI Sport Last week she was running fine! I stopped at the garage on my way home and when I came out and tried to start the car all the electrics worked fine but it wouldn't start. It didn't even attempt to turn over the starter motor and there wasn't even the audible click you usually hear when the battery is fried. I called the AA and continued to try to start her while i was waiting but no joy. I then engaged the steering lock and used the key to take it off and the car started. (although this did the trick I'm reasonably sure it was just a fluke) I used the car over the weekend with no issues and then yeaterday I got in it to go to work and it wouldn't start again. I haven't been able to start it since and i'm stumped. Someone suggested that i should try my spare key in it, something to do with an immobiliser chip in the key? Has anyone had the same issue? cause? solution? Or any general ideas welcome. Thanks in advance for any help.