Hello I have a c-max zetec 05 reg and it is driving me crazy, when I start the car I get the usual noise as the car checks it self but then after that I get a similar warning noise every few minutes. Nothing is lit up on the dash board and the car is driving fine with no other noises. The only other problem I have is that the boot lock sometimes sticks could this be related. Also I came back from holiday drove the car for two hours before noise started again. Any ideas I would be of a great help.