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Why does my Audi A2's engine make a loud ticking noise at idle?

I have noticed that when my car is at idle, the engine makes a loud ticking or tapping noise. What could be causing this and how can I fix it?

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Answers (2)

This could be due to low engine oil levels or dirty engine oil. Check your oil levels and if they are low, top up the oil. If the oil is dirty, it is recommended to change it.

Another possible cause could be a faulty valve lifter or rocker arm. This will require a technician to inspect and possibly replace the faulty parts.

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