Hi
I am having trouble starting the car lately (2001 A4),whenI turn the key the whole way nothing happens.all the lights light up but the engine will not fire,the starter will not turn. it onlyhappens sometimes, maybe once a day, and then the car starts fine after that. It doesn't matter if the car is hot or cold. Doyou think it could be something to do with theimmobilizer? I don't thinkmyslef it is the battery as alarm and everything else still works fine.
Any advice would be greatly appreciated.

 

ignition switch maybe? how many miles?

 

could be worn ignition barrel ( black box on the rear of the ignition ) plastic and wares out

 

also you dont say if its auto or manual? if auto it could be the inhibitor which wont let you start it in gear for safety reasons

 

its a manual with 75k

 

I was typing the same as wood_e at the same timeso it must be the ignition if its not an auto

 

if i replace the barrel will it effect the immobilizer-(if i have one) is it a hard job to replace,cost etc.

 

Your 01 doesn't have immobilizer so its easy

 

just opened up steering column at the end of the ignition there is a cluster of wires attatched to a black plastic connector is this the barrel,if so mine has no cracks no signs of wear,or is the barrell in side the ignition housing