So an idiotic friend of my wife tried to close the boot of our E61 manually and forced it down rather than using the automatic close button.
Now, the button doesn't work at all.
Automatic opening still works on both the key fob and with button inside drivers door, but will not close using the close button on the lid of the boot.
You can manually close the boot but it is pretty hard and it certainly feels like you are having to force it.
Any diagnosis or help much appreciated.