The mass air flow sensor without housing is a direct replacement for 2000 Audi A6 Quattro and S4 with the 2.7L V6 engine. It measures the volume of air entering the engine so the engine computer can match fuel delivery to airflow; it installs into the existing housing.

Walker Products 245-2246 Mass Air Flow Sensor Features:

• Fits 2000 Audi A6 Quattro, S4 with the 2.7L V6 engine
• Female electrical connector with 5 terminals
• Includes mounting hardware
• Housing not included