Part number 030905377 is a brand new, unused Genuine Audi/Volkswagen ignition knock (detonation) sensor.
Knock Sensors tell your engine of any pre-detonation so that it can make the necessary adjustments to protect your engine from damage, thus they must be replaced if they no longer function properly.
Buying Genuine VW Audi parts online from FCP Euro is a simplified process compared to a VW dealer or Audi dealer. A dealer will often ask for a VIN to look up an Audi or VW part. FCP Euro takes out the guess work with complete fitment guides and part specific notes that are just a click away.
FCP Euro is an online retailer specializing in replacement parts for European cars including Volvo, BMW, Saab, Audi, VW and Mercedes Benz. Since 1986 FCP has been focused on servicing it's customer, providing the highest quality replacement parts at affordable prices, and making sure that it's catalog is accurate to ensure that their replacement parts fit and perform exactly as original equipment.
FCP Euro offers one of the largest selections of Genuine & OEM replacement parts on the web backed with a lifetime warranty, unlimited returns, and free shipping.