Genuine OEM Audi Manifold Absolute Pressure (MAP) Sensor, part number 03C906051F. This critical sensor measures the absolute pressure within the engine's intake manifold, providing essential data to the engine control unit (ECU). The ECU uses this information to calculate air density, which is vital for precise fuel injection and ignition timing, optimizing engine performance and efficiency. Weighing 0.029 kg, this sensor is designed for accurate and rapid response. Using a genuine OEM MAP sensor ensures correct calibration and signal characteristics, which are fundamental for reliable engine operation, fuel economy, and emissions control.