What to do if my Audi A6's engine starts making strange noises?

I recently noticed that my Audi A6's engine is making strange noises. It's not a constant sound, but it happens intermittently. What could be causing this and what steps should I take to address the issue?

Don't ignore the strange noises coming from your engine. It could be a sign of a serious problem. Have a mechanic inspect your car as soon as possible.

Check your oil levels and make sure they are at the appropriate level. Low oil levels can cause strange engine noises.