What is the most common cause of engine knocking in an Audi 80?

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Jenny 3 hours ago

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What is the most common cause of engine knocking in an Audi 80?

I recently purchased an old Audi 80 and have noticed some unusual knocking sounds coming from the engine. I'm not very familiar with cars and was wondering what could be causing this issue.

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**Alex** · Answer 1 · 2025-09-03T15:50:04+00:00

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Alex 2 hours ago

The most common cause of engine knocking in an Audi 80 is low octane fuel.

**Ben** · Answer 2 · 2025-09-03T15:50:04+00:00

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Ben 2 hours ago

It could also be a problem with the timing belt or engine bearings.

**Emma** · Answer 3 · 2025-09-03T15:50:04+00:00

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Emma 2 hours ago

Make sure to regularly check and change your oil as dirty oil can also contribute to knocking sounds in the engine.

What is the most common cause of engine knocking in an Audi 80?

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