I have a 2008 diesel Mondeo with keyless start & entry. After being on holiday for 2 weeks I have gone to start the car and a message saying key battery low and it wont start. I replace the key battery but it still refuses to start.
I have a "Engine malfunction " message appear followed by "Immobiliser active"
I tried disconnecting the battery for a while, re-connecting it locking the car and then opening it using the key fob but I still get the same message. Has anyone had this before or know of any solution please before I contact a garage