Ah, okay so looks like I need a G524 then
Shame it looks a bit of a pain to get too "on gearbox rear" but I will give it a go!
I was working form what I could see in this doc
http://www.volkspage.net/technik/ssp/ssp/SSP_365.pdf but the info posted above looks more specific to my car so many thanks 47p2
David, I will send you an email shortly and would be very appreciative if you could source the part for me
Will try and get it fitted ASAP and post back how I get on.
Thanks to all