I followed the links on this thread:
http://www.seatcupra.net/forums/showthread.php?p=4631917
But it now seems they may be stale links.
You basically need to remove the cheaper feeling black plastic trim from around the binnacle, levering it from both sides simultaneously. That should give you enough room to get in on the top and bottom to free the clips. I used trim removal tools. I wouldn't like to use a screw driver or similar as the trim is very cheap feeling and you could easily scratch the metalic grey coloured inserts.
You'll have to remove the sheet of vinyl that covers the steering column then that exposes the screws at the bottom of the cluster. I was panicking that the screws that hold the binnacle in place could easily fall out and disappear behind the dash but if you're careful they stay in situ once they're unscrewed. You can then lift the binnacle out but be careful as you'll need to unclip the connectors at the rear.
You then have access to the whole cluster. I fixed Silent Coat foam to every flat surface I could and also fixed some to the rear of the cluster itself. Then reversed the process to refit everything. Just be careful not to foul the clips or screw holes and check the binnacle is operational before screwing everything back together.