It may seem to work perfectly but trust me it doesnt work with the fan unit properly, I have researched this inside/out, the wiring doesnt exist on the facelift climate to power the second motor on the fan unit behind the glovebox, the facelift systems use a single motor & a cam system for the second flap positioning, thus it may appear to work but when you delve into it deeper it fails miserably, take my word for it as Elsa clearly shows the wiring changes in 07/08 onwards, I also thought it was working properly in mine, as did someone else who Gareth installed for & failed miserably, it will appear to work initially, only cause the flap is probably already in a position you need, but when you change things, then you'll notice the problems.
Now, just a stroke of luck your car was in the middle of any changes audi were in middle of, then you may be the anomoly, as is my car when I did the white clsuter upgrade, the extra wire for the newer pump was already there, but not the newer pump.
Anyway feel free to research it yourself further.