Thanks very much, appreciate the reply. An independent garage has quoted £500 inc parts and labour, and a friend of the family (who did another C5 we have in the family) will do it for £375 so I'm going to go ahead with that quote. What you've said ties in with those figures. I'll check with him that he's capable/aware of the crankshaft pulley procedure - it will keep him on his toes! Cheers.