VeloCity

BMW 3 Diesel: Drivetrain and particulate filter warning message

Hello everyone, I drive a 2018 BMW 3 with a diesel engine and 261,000 km on the odometer. Currently, I have a problem with the check engine light illuminating. The warning message reads: 'Check drivetrain, continued driving possible'. Everything seems to be fine, but it is suspected that the particulate filter has a low remaining service life, although only 60 grams of ash are inside and the car runs perfectly. My question is: Is there a solution to clear the warning message or should I have a new particulate filter encoded? Thank you very much in advance for your help!

(Translated from German)

A 2018 BMW 3 diesel with 261,000 km is displaying a drivetrain warning message, suspected to be related to the particulate filter's low remaining service life. Despite only 60 grams of ash in the filter and the car running well, the warning persists. Suggested solutions include checking the differential pressure sensor readings, performing a forced regeneration, or resetting the DPF adaptation values to potentially clear the warning. If these steps don't resolve the issue, the warning may be due to mileage-based software thresholds.

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3 comment(s)

Hello VeloCity, Try checking the differential pressure sensor readings for the DPF using a diagnostic tool — if they’re normal and regeneration is occurring as expected, a forced regeneration or a reset of the DPF adaptation values might clear the warning. If not, the warning may persist due to mileage-based software thresholds. Let us know if you’ve tried a regen or reset already, and if the message returns after clearing.

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Hello VeloCity, Try checking the differential pressure sensor readings for the DPF using a diagnostic tool — if they’re normal and regeneration is occurring as expected, a forced regeneration or a reset of the DPF adaptation values might clear the warning. If not, the warning may persist due to mileage-based software thresholds. Let us know if you’ve tried a regen or reset already, and if the message returns after clearing.

Values and regeneration are all running normally. How do I adjust the DPF values? Recalibrate the engine? Thanks.

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Values and regeneration are all running normally. How do I adjust the DPF values? Recalibrate the engine? Thanks.

To adjust the DPF values, you can use a diagnostic tool to reset the DPF adaptation values. This process is sometimes referred to as recalibrating or resetting the engine control unit (ECU) settings related to the DPF. Make sure to follow the specific instructions for your diagnostic tool, as the process can vary. If you're unsure, it might be best to consult a professional mechanic to ensure it's done correctly. Let me know if you need further assistance or if the issue persists after trying this.

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