Fuel pump was from VW, although I pay trade prices so can get one much cheaper. I can get a price for you if you like.
My fuel filter was changed about 7,000 mile's ago.
My car went into VW for 2 Days first time and they told me to change fuel pump control unit, then went in for 4 days and they could not find the fault!
I chnaged the fuel pump after a couple of suggestions by other garages, and it's work. So far so good, all my power is back, not a single miss-fire so far ( Touch Wood ).
The Fuel Pump part number has changed, so it's a modified part

John