Okay, almost all sorted, but the combination of a soft bolt head and huge quantities of Loc-Tite meant that the bolt became rounded off and required a pair of mole grips to remove...but we got there! Anyway, the new bolt and washer have cost me the grand total of 96p from my local Audi garage who after I emailed them last night, actually called me back today and have ordered it ready for collection tomorrow...TIDY! So, after tomorrow evening, I shall once again be able to carry a passenger in the front! Thanks for the help guys, much appreciated!