What are the symptoms of BMW sensor failure?

1 Answers
MacJade
07/30/25 3:29am
Introduction to BMW sensor failure symptoms: 1. Increased fuel consumption: Carbon buildup on the sensor can cause abnormal signal output, leading to an imbalance in the engine's air-fuel mixture ratio and resulting in increased fuel consumption. 2. Increased pollutant emissions: If the sensor malfunctions due to carbon buildup, it can cause incomplete combustion in the engine, leading to higher pollutant emissions and potential failure in annual vehicle inspections. 3. Possible black smoke emission: Abnormal sensor function can disrupt the air-fuel ratio, potentially causing black smoke to be emitted. 4. Unstable engine speed and shaking: These issues may also be caused by sensor failure.
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