The BOSCH Mass Air Flow (MAF) Sensor, part number 0 280 218 417, is a critical component for modern engine management systems. It precisely measures the volume and density of air entering the engine's intake manifold. This data is then sent to the engine control unit (ECU), which uses it to calculate the correct amount of fuel to inject for efficient combustion. By ensuring the ECU has accurate airflow readings, this MAF sensor helps to maintain optimal air-fuel ratios. This leads to improved engine performance, better fuel economy, and reduced emissions. A failing MAF sensor can cause a variety of issues, including rough idling, hesitation, poor acceleration, and illuminated check engine lights. BOSCH is a leading manufacturer of automotive components, known for its high-quality and reliable parts. This MAF sensor is engineered to meet or exceed original equipment specifications, providing a dependable solution for your vehicle's needs. Proper installation and maintenance of the MAF sensor are essential for the overall health and efficiency of your engine.