What does it mean when the yellow engine light comes on in a BMW 3 Series?

1 Answers
LaDylan
07/30/25 1:56am
When the yellow engine light comes on in a BMW 3 Series, it indicates an engine malfunction. Excessive carbon buildup in the car: If the gasoline used is of poor quality or there is excessive carbon buildup in the engine, it can lead to poor combustion, which may trigger the malfunction indicator light. In such cases, it is important to promptly inspect the engine and visit the nearest auto repair shop for maintenance. Oxygen sensor malfunction: This type of issue typically causes the yellow engine light to illuminate but does not affect normal driving. However, it is advisable to check the reason for the engine light after driving.
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