Fitment Level: OE Match / Platform Verified

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

• 4N0906261A
• 0281006998
• 0281006999
• 0281006998/999 (paired sensor variant designation)
• 4N0906261 (related revision family in Audi D5 platform)
• Bosch PM sensor family 0 281 006 998 / 0 281 006 999

Typical applications include Audi / VW MLBevo diesel platforms such as:

• Audi A8 D5 3.0 TDI diesel (2017–2024)
• Audi Q8 3.0 TDI diesel
• Audi Q7 4M 3.0 TDI diesel (selected configurations)
• Audi A6 C8 3.0 TDI diesel (platform-dependent variants)
• Audi A7 3.0 TDI diesel (selected Euro 6 variants)
• Volkswagen Touareg CR 3.0 TDI diesel (MLBevo platform)

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 evaluate DPF efficiency, control regeneration cycles, and ensure emissions compliance under Euro 6 standards.

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

Fitment must always be confirmed strictly by OEM number (4N0906261A / 0281006998 / 0281006999), as Audi D5 and VW MLBevo platforms use multiple emissions sensor revisions.