I just bought a used BMW and noticed the engine is making a knocking sound. What could be causing this and how can I fix it?
ReplyFirst, make sure the oil level is correct and the oil is clean. Low oil or dirty oil can cause knocking sounds in the engine. If the oil is fine, the next step would be to check the fuel quality. Old or low quality fuel can also cause knocking. If neither of these fixes the issue, it could be due to worn out engine components. It is best to take your BMW to a mechanic for a thorough inspection and repair.
One common solution for engine knocking in a BMW is using a higher octane gasoline. This can improve the combustion process and eliminate the knocking sound. If this doesn't work, it could indicate a bigger problem with the engine. In that case, it's best to take your car to a BMW dealership for diagnosis and repair. Regular maintenance and using high-quality gasoline can help prevent engine knocking in the future.
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