Genuine OEM Audi Reducing Agent Dosing System Pressure Sensor, part number 80A131225. This sensor is responsible for monitoring the pressure within the reducing agent dosing system, which is vital for effective emissions control. It is located within or connected to the reducing agent tank assembly. Weighing 0.2 kg, this sensor provides precise pressure readings. Choosing a genuine OEM sensor ensures accurate calibration and signal characteristics, critical for maintaining emissions compliance and engine efficiency.