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What are some common engine issues in the BMW M4?

I've noticed some strange noises coming from my BMW M4's engine. What are some potential causes and how can I prevent them?

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One common issue with the BMW M4 is a faulty VANOS unit, which can cause engine noise and reduced performance. Regular maintenance and using high-quality oil can help prevent this issue.

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Another possible cause of engine noise is a worn out serpentine belt. This should be checked and replaced if needed during scheduled maintenance.

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A dirty air filter can also lead to engine issues, such as reduced power and increased fuel consumption. Make sure to replace your air filter regularly to keep your engine running smoothly.

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