Got one from Euro Car parts is identical to the one on the car this was recommended to me by Awesome Gti as this is where they source theirs, part numbers above are the pump and the impeller on the end
 
I got mine from Euro car parts and im an Audi Tech.

Audi dont do a metal impellor one ,and seeing them go wrong so often there was no way i was fitting a plastic one.
 
I've just ordered from Awsome, hoping they are in stock as they posted the link.

If not I'll have to cancell my cambelt change on Thursday !!