I've noticed a loud knocking noise coming from my Audi A2's engine while driving. It seems to happen when the engine is under load or accelerating. What could be causing this issue?
ReplyThe knocking noise could be due to engine detonation, which is caused by incorrect fuel-to-air ratio. Try using a higher octane fuel and see if the noise persists. If it does, it could also indicate a problem with the ignition timing or spark plugs.
One possible cause for the knocking noise could be a worn out rod bearing. This is a serious issue and should be checked by a mechanic as soon as possible to avoid further damage to the engine.
Check the engine oil level and quality. Low oil levels or dirty oil can also contribute to engine knocking. If the oil level is fine, consider getting an oil change to see if it helps reduce the noise.
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