FITMENT - 2000-2001 for Audi A4 2.8L,2000-2001 for Audi A4 Quattro 2.8L,2000-2001 for Audi A6 2.8L,2001 for Audi A6 Quattro 2.8L,2000-2005 for Volkswagen for Passat 2.8L. EASY to INSTALL and CLEAN - Disconnect the negative side of the battery, then loosen a couple band clamps and disconnect the harness. Pull out your old unit and re-insert new one, tighten band clamps, re-connect harness and negative battery terminal. HOW to WORK - Mass Air Flow Meter AFM Sensor measures the volume and density of air entering the engine, providing highly accurate Air Flow readings to the ECU over a wide range of ambient temperatures..
