Compatible with VAG diesel vehicles equipped with exhaust particulate (PM) sensor systems using OEM references 4L0906261F / 4L0906261D / 4L0906261E / 0281006503 / 0281006504 / 0281006410 / 0281006411 in diesel aftertreatment (DPF system).

Typical applications include:

• Audi Q7 4L 3.0 TDI diesel
• VW Touareg 7P 3.0 TDI diesel
• Porsche Cayenne 958 diesel (platform-shared systems)
• VAG V6 diesel engines with CNRB / related engine codes
• Vehicles equipped with diesel particulate filter (DPF) soot monitoring system for regeneration feedback

⚠️ Note: This is a post-DPF particulate matter (soot) sensor, not a NOx sensor or exhaust pressure sensor. It measures soot concentration after the diesel particulate filter to monitor efficiency and control regeneration cycles.

Function: Installed downstream of the DPF in the exhaust system, the sensor continuously sends real-time particulate data to the ECU. This allows precise regeneration control, helps detect DPF degradation early, and ensures emissions compliance.