This high pressure pump is used for your direct-injected vehicle. They will usually fail when the camshaft follower wears through and destroys the pump shaft or they can't put out the proper pressure after it has aged.
High Pressure Fuel Pump - 1
M6x22 Torx Bolt - 2
High Pressure Fuel Pump O-Ring - 1
Fuel Pump Cam Follower - 1
* This part is designed for the TSI engine only. This can easily be found on the engine cover of your 2.0T VW/Audi. It will clearly be stamped TSI or TFSI.