OK, it has stop raining, below is the result from the investigation;
Both fronts look OK and are all cliped in properly
Back Right is OK also, see photo
Back left however looks like this.
It does not look like it is damaged in any way but it was not in it's clip. Maybe this is the issue as already posted. I tried to put it back in and eventually did but it is so tight on the bottom wire that it will more than likely come out again . Notice the bottom part of the cable and how tight it is in the photo below. It is not really clipped in properly cause you can't stretch it anymore.
What now if this is the issue. Do I have to reboot anything or wait for the dealer to have a look?
Edit: Sorry the photos are so big.