OEM quality Mann/Mahle/Bosch, fuel filters. Superior to the light weight multiple application US discount store fuel filters. These filters are physically heavier by weight and have more filtering material within them than discount store filters.
If you're doing general maintenance on your VW, consider adding Lubro Moly's anti-friction additive for engines. This additive coats all metal-to-metal wear surfaces and greatly increases engine life. Also, increase the overall value of your VW by keeping meticulous records and storing them in your new VW glove box portfolio.