Thanks everyone on the forum for comments and especially the PDF Mr Fogster.
The Mrs has described symptoms of power loss and im abroad so cant check yet, anyhoo, have just bought this off ebay so we'll have the part ready to rock. Will report back! ... maybe ill have a new one to sell for £20!
http://www.ebay.co.uk/itm/Volvo-S60-...AAAOxycmBS-gNe