NHTSA Complaint #11717151 — 2014 BMW 328D

I am reporting an emissions-related malfunction that occurred a very short time after BMW performed the EGR cooler recall and updated the DDE software on my vehicle. Shortly after the recall work, the vehicle began showing DDE fault code 2BB300 – Particulate Sensor Measuring Electrode, Self-Diagnosis, which triggered the MIL. This issue did not exist at any point before the recall. Although my vehicle is now older than 10 years, the critical concern is that this emissions-related failure appeared soon after the recall intervention, indicating a potential recall-associated defect rather than normal age-related wear. The fault was diagnosed at BMW West Houston, where it was confirmed; however, I was told no warranty or goodwill support could be provided due to vehicle age, despite the timing suggesting a recall-related cause. BMW’s emissions warranty extension bulletin (NHTSA TSB ID: MC-10160282-9999) lists particulate sensor failures (2BB700–2BA200) as known issues. Many BMW diesel owners have reported similar particulate sensor faults shortly after the EGR cooler recall and related software changes, suggesting a broader pattern. If the EGR recall or subsequent software calibration is leading to particulate sensor failures and MIL activation, this may represent a post-recall emissions defect affecting compliance. I request that NHTSA evaluate whether the EGR recall may be contributing to widespread particulate sensor failures. Vehicle Information: – 2014 BMW Diesel – Fault Code: 2BB300 – Failure occurred a short time after the EGR cooler recall & software update – Diagnosed at: BMW West Houston Thank you for your attention.