Compatible with BMW diesel emission aftertreatment systems using OEM references:

• 1277022814
• 0281007688
• 0281007689
• BMW internal PM sensor family (varies by engine code: N47 / B47 / B57 / N57)

Typical applications include:

• BMW 3 Series F30 / F31 / F34 diesel
• BMW 5 Series F10 / G30 diesel variants
• BMW X3 F25 / G01 diesel
• BMW X4 F26 / G02 diesel
• BMW X5 F15 / G05 diesel
• BMW X6 F16 / G06 diesel
• Selected BMW 7 Series G11 diesel configurations

Function:
Installed after the diesel particulate filter (DPF), this sensor measures soot concentration in the exhaust stream. The ECU uses this signal to:

• verify DPF regeneration efficiency
• detect soot slip or abnormal emissions
• optimize regeneration strategy
• maintain Euro 6 emissions compliance

⚠️ Important
This is a DPF particulate matter (PM) sensor, not a NOx or pressure sensor. It directly measures soot concentration downstream of the diesel particulate filter and is critical for BMW diesel emission control and regeneration logic.

Fitment must always be confirmed strictly by OEM number (1277022814), as BMW uses multiple close revisions across B47/B57/N57 engine generations.