Genuine VAG part. The fuel pump cam follower is a weak point on the 2.0TFSI engine.
The camshaft follower found in VW and Audi 2.0T FSI engines
rides on the camshaft and transfers the motion into the high pressure fuel pump. This small part can play quite a big role in your engine’s well being, as it keeps a barrier and connection point between your camshaft and your high pressure cam driven fuel pump.
Numerous issues cause excessive wear of the camshaft follower; fuel dilution of the oil, poor lubrication due to low-ZDDP oil regulations, insufficient surface hardening of the cam follower contact surface.
Without replacement, it is common for followers to have full holes worn though them.
Regular checkup of your cam follower and replacement can prevent irreversible damage to your fuel pump or camshaft.