Genuine OEM Audi Air Filter Assembly, part number 07L133836AE. This assembly filters intake air to protect the engine from contaminants. It incorporates a mass air flow sensor to accurately measure the amount of air entering the engine, crucial for fuel mixture calculations. The air filter element is designed to trap dust and debris. Genuine OEM parts are manufactured to precise specifications, ensuring correct airflow and sensor readings for optimal engine performance and longevity.