This FEBI BILSTEIN detonation sensor (part code 108119) is designed to monitor and detect engine knock or detonation. By identifying abnormal combustion events, the sensor provides crucial data to the engine control unit (ECU). The ECU uses this information to adjust ignition timing in real-time. This adjustment helps prevent engine damage caused by detonation and ensures optimal engine performance and fuel economy. A properly functioning detonation sensor is vital for maintaining the health and efficiency of your vehicle's engine. FEBI BILSTEIN is known for producing high-quality automotive components. This sensor is manufactured to meet stringent industry standards, ensuring reliable and accurate readings. Installation of this part is recommended for vehicles experiencing knocking sounds or performance issues related to combustion timing.