As feared had to replace the whole front thing (£200 each side!!). I am using my local Citroen dealer as they can get the parts by 0900 next day and have been about 10% cheaper. My local Fiat dealer said the part "didn't exist"!!!
Once agian my mate was able to do work for a fraction of the cost of garage. (£150 per side at Garage, 4 cans of Carling for both sides to mate!!!!!)
So all left to do now is find out what is causing the battery drain, why it cuts out even though the idle valve is new, why it runs so rough and why the main fuse box is full of water!!!!
Once they are sorted I will have a pretty good, practical vehicle!! I'm off to the auto electrician on Friday - bring on the bill!!!