Knock Sensor

Knock Sensors are vital components within the engine management system of passenger cars and commercial vehicles, found in the Engine Parts > Engine Electronics category. These sensors detect engine knocking or detonation - pre-ignition that can cause significant engine damage. Typically located on the engine block or cylinder head, knock sensors transmit signals to the engine control unit (ECU), which then adjusts ignition timing to prevent harmful knocking. By optimizing combustion, these sensors help maintain engine performance, fuel efficiency, and longevity. Examples in our range include sensors for Mercedes-Benz Trucks, Mercedes-Benz Passenger vehicles, and quality replacements from Bosch, such as MPN 0261231075 and FEBI170178.