Fitment Level: OE Match / Platform Verified

Compatible with Volkswagen Group diesel emission aftertreatment systems using OEM references:

• 8R0906261A
• 8R0906261 / 8R0906261B (same sensor family revisions)
• 0281006523
• 0281006524
• Bosch 0 281 006 523 / 0 281 006 524
• 4M0906261 series (later MLBevo evolution cross-family reference in some catalogs)

Typical applications include Audi / VW diesel platforms such as:

• Audi Q5 8R 2.0 TDI / 3.0 TDI (facelift Euro 5 / Euro 6)
• Audi SQ5 3.0 TDI 8R
• Audi Q7 4L 3.0 TDI diesel (selected variants)
• Volkswagen Touareg 7P 3.0 TDI diesel
• EA897 V6 TDI engine platforms (DPF-equipped configurations)

This sensor is used in diesel particulate matter monitoring systems, where it measures soot concentration downstream of the DPF. The ECU uses this signal to control regeneration cycles, evaluate filter loading, and ensure emissions compliance.

⚠️ Important:
This is a DPF particulate matter (PM) sensor, not a NOx or pressure sensor.
It directly measures post-DPF soot levels and is essential for regeneration control, emissions monitoring, and diagnostic fault detection.

Fitment must always be confirmed strictly by OEM number (8R0906261A / 0281006523 / 0281006524), as Audi/VW use multiple revisions across 8R-platform diesel systems.