I have reached the conclusion that it is the CCM.

 There is one on fleece bay with exact part number,plus all of the smaller letters and numbers are the same,but it is for a MK4 Golf.

 I know Octavia and Golf are cousins,but will this work? All advice gratefully received.Up for NCT tomorrow night and I know she's going to fail,again.

 

I usually order golf mk4 parts for my octavia, only part difference I've found so far was the rear wiper motor went in the opposite direction, and the washer works slightly differently.

Well here we go,I bought,not going to be here for the test,but hey,it's only a turn up and show fail.Here's hoping.

Well sneaked passed the NCT,thanks to a strategically placed switch and some fast foot work.And the CCM didn't swap,need to get her coded. So anyone near good auld Donegal got one of those thingymajigs that does the recoding without going to the local highway man