Originally Posted by LoPoVe
Also car is having big problems starting. It won't start this morning. It starts up and then dies right away.
Anyone know what is causing this?
Sounds like classic immobiliser to me - do you have a flashing yellow symbol that looks like a 'key in the back of a car' flashing in the Tacho when it starts and dies?
If so it's the immobiliser.
In 2001 the immobiliser will be incorporated into the dash cluster.
Transponder in the key is energised by a coil in the black plastic ring around the ignition barrel. Only fix for your car I can think of is to unplug and plug-in the coil to ensure it is working correctly. Also, make sure key is fully home in ignition barrel and the housing of the key is as close as possible to the plastic ring around the barrel.
Turn ignition on and wait for yellow key/car symbol in Tacho to disappear before starting.
If your car main battery is a bit suspect, this can affect the immobiliser. I had issues both on my A4 and S8, which were a little bit frustrating until in both cases the battery died a short while later.
(do not confuse the transponder with the remote central locking - completely different things on these cars and is not affected by low batteries in the remote)