I recently purchased a used Audi A4 and have noticed that whenever I accelerate, there is a loud knocking sound coming from the engine. It seems to get louder the faster I go. What could be causing this issue?
ReplyIt's possible that you have a problem with your engine's fuel system. You may want to take your car to a mechanic for a thorough inspection. Avoid accelerating aggressively until the issue is resolved.
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