I just bought a used Audi 80 and noticed that it makes a loud knocking noise while idling. The noise goes away when I start driving. What could be causing this and is it something I should be worried about?
ReplyIt is possible that the knocking noise is coming from the engine. This could be caused by worn engine bearings or a loose connection. It is important to have it checked out by a mechanic as soon as possible to avoid any potential damage to your engine.
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