I heeded the forums advice and I was lucky.....thought I would document it here further...
I also had a real fight fitting the new pads and ended up taking a file to the recesses on the back of the pads where the handbrake expander and H-spacer slot into. Without grinding these sections back the discs wouldn't go over the new pads.....and yes, they were genuine Volvo parts!
This is what happened as I was removing my old pads:
https://www.volvoforums.org.uk/attac...3&d=1704581252