Morning All, I finally got round to doing this job and it wasn't the springs pinging everywhere experience I was expecting, it was very simple really. Undo the three torx bolts holding the latch mechanism in, carefully slide the latch from the exterior handle, unplug the multiplug at the bottom. Once free I took it to a bench, the next step was to remove the metal cover secured by 2no 3mm allen bolts and then carefully prise the plastic shroud open and remove it. Lift the rod out of its housing and the end is easily removed. Refitting is the reverse. I am unsure as to why one end broke off and frayed but suspect it was weakened by a bodyshop when they repaired the door a couple of years ago and that repeated use finally finished it off. Hope this is of use to someone. Regards Steve