Why does my Audi A3 engine make a strange noise?

I recently noticed that my Audi A3 engine is making a strange noise. It sounds like a metallic rattling. What could be causing this noise and how can I fix it?

It's possible that your engine may be low on oil or the oil may need to be changed. Make sure to check and top off your oil if necessary.

Another cause of engine noise could be a loose or damaged belt. Inspect your belts and replace any that appear damaged.