Just recently bought t4 .2.5 tdi have had a full service on it done two trips to Carlisle and back and never missed a beat also local runs as well. Went out to it the other night and instead of using the normal key i use i used the spare and all it does now is starts and then cuts out after a few seconds. I've tried taking the battery of and charging it to see if it resets the immobiliser to no avail, I've tried using the normal key i used same thing happens. Is there anyone local to cannock with a vag com that could help me out ????