Fitment Level: OE Match / Platform Verified

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

• 8W0906261A
• 8R0906261A
• 8R0906261 / 8W0906261 (same sensor family revisions depending on platform)
• 0281006523
• 0281006524
• Bosch 0 281 006 523 / 0 281 006 524

Typical applications include Audi diesel platforms such as:

• Audi Q5 8R 2.0 / 3.0 TDI diesel (facelift models)
• Audi Q7 4L 3.0 TDI diesel (selected variants)
• Audi A4 B8 / B8.5 2.0 / 3.0 TDI diesel (platform-dependent)
• Audi A5 8T / F5 2.0 / 3.0 TDI diesel
• Audi Q5 SQ5 3.0 TDI diesel (selected configurations)

This sensor is used in diesel particulate matter (PM) monitoring systems, where it measures soot concentration downstream of the diesel particulate filter (DPF). The ECU uses this signal to manage regeneration cycles, evaluate DPF efficiency, and monitor real-time emissions performance.

⚠️ 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 (8W0906261A / 8R0906261A / 0281006523 / 0281006524), as Audi uses multiple revisions across Q5/Q7/A4 diesel platforms.