Hi All, I am new to this forum stuff but need some advice. I recently purchased a 318ci coupe and only come with the two keys in the picture attached. now the car can only be unlocked manually by both keys, but the master key will only start the car intermittently where as the other one will start it every time. Also the central locking is not working, I don't think its a fault with the key because the button inside the car does nothing when pressed, so any ideas what the issues could be with 1. key only working now and again 2.central locking not working.