:D I rang the Citroen dealer at Stourbridge, and spoke to the service dept and spoke to a chap who was most helpfull. He confirmed that the expanding foam fix was approved. So I dropped the headlining on the C3 last week and squirted in expanding foam, and up to now.......NO MORE CLICKING. So it would appear that this is "the fix." I'll just have to see if it proves to be as durable as Arrows has been, but it is thanks to the information received by Arrows that I have looked into this further. See my previous post when my local Citroen dealer had not even heard of the clicking let alone the remedy. So thanks for posting this Arrows! If anybody else considers doing this, take the head lining completely out and don't be tempted to drop it only around the area that you are going to squirt the foam in, as you will end up in a mess, and will probably ruin the head lining. I nearly did it this way, (the economical way) but in the end, decided to remove it completely and am glad that I did. It is a very messy job, requiring lots of sheets to cover the seats etc. I got mine done in two days. I (and my wife) now enjoy driving this car again, which is good because I was considering getting rid, mainly because I can't stand clicking and dashboard creaks etc. Reggie