Fit Vehicles: 2000 Audi A4 1.8L 2000 Audi A4 Quattro 1.8L 2000 Audi TT Quattro 1.8L 2000-2002 Volkswagen Cabrio 2.0L 2000 Volkswagen Passat 1.8L Features: Extensively Tested During Manufacture to Guarantee Quality and Reliability Supplied With a Factory-Fitted Connector for Easy Installation Precision manufactured with a sensing element incorporating premier technical ceramics Where are my oxygen sensors located? Diagnostic Trouble Codes (DTC) .