Fitment Level: OE Match / Platform Verified

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

• 8W0906261C
• 8W0906261A / 8W0906261 (related revisions in same family)
• 0281007593
• 0281007594
• 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 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 post-DPF 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 data to evaluate DPF efficiency, control regeneration cycles, and ensure emissions compliance in real time.

⚠️ 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 (8W0906261C / 0281007593 / 0281007594), as Audi A4/A5/A6 platforms use multiple revisions across EA288 and V6 TDI architectures.