Our 2006 Citroen C4 is due to have the timing belt replaced at the next service, as it will be five years old. As we have only done 16,000 km do you think this to be necessary? Do the belts perish or stretch in that short time?
I would strongly recommend that you go ahead and replace the belt, as belts do deteriorate and stretch, even in what appears to be a short time. If you don't and it breaks you run the risk of major engine damage in the worst case, or at the very least being left stranded on the side of the road.