Fitment Level: OE Match / Platform Verified

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

• 8K0906261H
• 8K0906261 / 8K0906261A / 8K0906261C (same sensor family revisions)
• 0281006842
• 0281006843
• 0281007593 / 0281007594 (Bosch extended cross-reference family depending on calibration)

Typical applications include Audi diesel platforms such as:

• Audi A4 B8 / B8.5 3.0 TDI quattro
• Audi A5 8T 3.0 TDI quattro
• Audi A5 Sportback 3.0 TDI quattro
• Audi Q5 8R 3.0 TDI diesel
• Audi Q7 4L 3.0 TDI diesel (selected variants)
• VW Touareg 7P 3.0 TDI diesel (platform-shared systems in some calibrations)

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 ensure emissions compliance across Euro 5 / Euro 6 diesel systems.

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

Fitment must always be confirmed strictly by OEM number (8K0906261H), as Audi/VW use multiple Bosch revisions across B8 3.0 TDI platforms depending on model year and emission standard.