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BMW 3 Series: Engine problems at certain RPMs

Hello everyone, I own a 2010 BMW 3 series with a gasoline engine and 85,000 km mileage. I have the following problem: The engine runs roughly. Specifically, my e90 n43b20 320i sporadically jerks at 1900 rpm and now also at approximately 1400 rpm. I have already replaced the injectors, spark plugs, and ignition coils, so I rule these out as the cause. Has anyone had similar experiences or any tips on what else it could be? Thank you in advance!

(Translated from German)

A 2010 BMW 3 Series owner experiences engine roughness and jerking at specific RPMs, despite replacing injectors, spark plugs, and ignition coils. A potential cause suggested is a dirty or malfunctioning mass airflow sensor (MAF), which could be cleaned or replaced to resolve the issue.

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Check the mass airflow sensor (MAF) for dirt or malfunction, as it can cause rough running and jerking. Clean it with a suitable cleaner or replace it if necessary. Let me know if this resolves the issue or if you have any further questions!

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BMW

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