G'day everyone - had a PM asking about this seat recline problem and thought i'd add a picture to this thread for future reference for others.
*** Thanks Bestia for the PM - i think this is the thread you were referring to ***
The part i needed was the cable indicated in the attached pics - the gearing mechanism on mine was OK.
If your anyone is having difficulty getting htis part, i ordered mine from Cileberti Motors here in Osborne Park (WA) - they'd be able to order this and send it to you. IIRC it was about $250 for the cable sent from Italy.
By the way - when you take off the gearing mechanism, REMEMBER which way it went on! i put mine on backwards and now the button works in reverse (not an issue but is a bit silly now i press it forward to recline back... and vice versa...)