I've noticed a knocking sound coming from my Audi 80's engine and I'm not sure what could be causing it. It only happens when the engine is warmed up and the car is idling. It's not very loud, but it's concerning. Any ideas on what could be causing this?
ReplyOne of the most common causes of engine knocking in an Audi 80 is low quality fuel. Make sure you are using high quality gasoline from a reputable gas station and avoid using lower grade fuel.
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