Bosch 0281007875 Particulate Matter Sensor

The Bosch 0281007875 Particulate Matter Sensor is used to monitor the function of the diesel particulate filter (DPF) in modern diesel-powered vehicles and heavy-duty equipment. This sensor continuously monitors the function of the Diesel Particulate Filter via direct measurement of soot concentration to help reduce particulate emissions by up to 99%.

Key Features:

• Operates on resistance measurement principle where soot particles are deposited on an electrode structure and form conductive soot trails between the electrodes
• Self-regenerating design with integrated heating element that regenerates the sensor element prior to each measurement phase
• Plays a pivotal role in ensuring the vehicle adheres to emission standards and assists the engine's control unit (ECU) in managing the DPF system
• Provides real-time data to the engine control unit (ECU), optimizing regeneration cycles and ensuring peak performance
• Genuine Bosch quality engineering for reliable diesel emission system diagnostics

The PM sensor is typically installed downstream of the DPF and at the outlet of the Selective Catalytic Reduction (SCR) system, where if the aftertreatment system is working correctly, virtually no particulate matter should reach the sensor, making it a key diagnostic tool for the entire aftertreatment system. This precision sensor helps prevent excessive DPF regeneration cycles, reducing fuel consumption and extending the service life of emission system components.