A little update*
You're all correct, stuck screws ment new comfort module. Then broken wire in the harness between boot and boot lid.
I then had a bit of a head scratcher though, after I changed the comfort module (lighting unit).The door handle would activate the lock to open as long as the boot was open (just went clunk). But if the boot was shut it wouldn't activate it.
Anyway after a lot of head scratching I figured out where I had changed the key barrel in the lighting unit, the key when i turned it in the barrel seems to have 3 different settings. Open boot with key, open boot with key or boot handle or the last position seemed to de activate the boot lid door handle all together. I'm not sure if this is correct or weather my key is just quite sticky in the barrel , but it's what I found and it could help someone down the line.
Thanks once again guys you've helped massively!
