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.
Direct Injection High Pressure Fuel Pump-Gdi High Pressure Pump Bosch 66812
Direct Injection High Pressure Fuel Pump-Gdi High Pressure Pump Bosch 66849
Direct Injection High Pressure Fuel Pump-Gdi High Pressure Pump Bosch 66821
Direct Injection High Pressure Fuel Pump-Gdi High Pressure Pump Bosch 66800
Direct Injection High Pressure Fuel Pump-Gdi High Pressure Pump Bosch 66804