My car ha been parked for 4 days, time for me sort out insurance and tax. When I came to get in this morning, the central locking wouldn't work, so I had to use the key. The the engine wouldn't start. The light on the keyfob is working, but there is no flashing light on the control panel to indicate that immobilisere is on on not. Could it be that the battery is gone, or what else. Quisck answer appreciated cause got to take it in for service tomorrow and if it doesn't start then got to cancel appointment. Many Thanks