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How to diagnose and fix engine knocking in Audi vehicles?

Audi engines are known for their smooth performance, but sometimes they can develop a knocking sound which can be worrying. What could be causing this and how can it be resolved?

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The most common cause of engine knocking in Audi vehicles is improper fuel octane levels. Ensure you are using the recommended octane level for your Audi model and consider using a higher octane fuel. This should eliminate the knocking sound.

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