Why does my Audi A8's engine make a knocking noise?

I have noticed that my Audi A8's engine has recently started making a knocking noise. It seems to be coming from the area near the spark plugs. What could be causing this and how can I fix it?

Hi Jessica, a knocking noise from the engine can be concerning. It could be due to a number of issues such as faulty spark plugs, low oil level, or worn out bearings. I recommend taking your car to a certified mechanic to diagnose the problem and fix it before it gets worse.

Hi Jessica, another possible cause of the knocking noise could be a loose or damaged engine mount. This can be dangerous if not fixed promptly. I suggest having it checked by a professional and replaced if necessary.

Hey Jessica, sometimes carbon build-up in the engine can also cause a knocking noise. This can be easily fixed by using a fuel system cleaner. I recommend using a high-quality cleaner and following the instructions on the label for best results.