Fitment Level: OE Match / Platform Verified

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

• 8W0906261
• 8W0906261A / 8W0906261C (same sensor family revisions)
• 0281006842
• 0281006843
• 1277023240 (cross-reference used in aftermarket catalog systems)

Typical applications include VAG EA288 / V6 diesel platforms such as:

• Audi A4 B9 2.0 TDI (EA288 diesel)
• Audi A5 F5 2.0 / 3.0 TDI diesel
• Audi A6 C7 / C8 2.0 / 3.0 TDI diesel (selected variants)
• Audi A7 3.0 TDI diesel (selected configurations)
• Audi Q5 2.0 / 3.0 TDI diesel
• Volkswagen Passat B8 2.0 TDI diesel
• Volkswagen Tiguan II 2.0 TDI diesel
• VW Group MQB / MLB diesel platforms with DPF soot monitoring systems

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 monitor real-time emissions performance.

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

Fitment must always be confirmed strictly by OEM number (8W0906261 / 0281006842 / 0281006843), as VW/Audi uses multiple revisions across EA288 and V6 TDI platforms.