Hi, I have a 56 plate X type estate 2.0 Diesel. When I try to start it from either cold or hot, sometimes the glow plug light goes out and it starts, other times the glow plug light flashes and it spins over but won’t start. I have to switch it off and then turn it back on again the glow plug light goes out and it starts. Am I right to think this is immobiliser related. Has anyone got any advice to point me in the right direction, regards Stewart.