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Why is my Audi A5's engine making a knocking sound?

I recently noticed a knocking sound coming from my Audi A5's engine. What could be causing this and how can I fix it?

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Answers (2)

S

It could be a problem with the engine's bearings. I recommend taking it to a trusted mechanic for a diagnosis and repair.

M

It could also be an issue with the fuel detonation. I suggest using a higher octane fuel to see if that helps. If not, have a mechanic check the engine's timing.

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