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Why does my Audi A6’s engine make a rattling sound?

I recently noticed a strange rattling sound coming from my Audi A6’s engine. It only happens when the car is idling, and the sound seems to go away when I accelerate. What could be causing this noise? Is it something I should be concerned about?

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J

The rattling sound could be caused by a faulty timing chain tensioner. This can happen over time with wear and tear. It is important to have it fixed as soon as possible to prevent further damage to your engine. I recommend taking your car to a trusted mechanic for an inspection and possible replacement.

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