That's great info

judging by the 2 options mentioned, that must mean I've got a FBG gearbox as it's written right next to the EUU code in my service book!
What's the difference between the two that made you think the other was more likely?
Mine's a late car, so guess the sequentially later part number is likely?
Wonder if the ZF bloke will be able to use that number

.....
Queue some late night Googling - this link looks useful:
http://www.audipages.com/Tech_Articl...udiProgram.pdf
It lists the comparable ZF part numbers for a given gearbox code or part number from Audi

Interestingly it doesn't list the ECY/041S option