Why is the engine of my Audi making a strange noise?

I recently noticed that my Audi's engine has been making a strange noise while idling. What could be the cause of this and is it something I should be concerned about?

It sounds like your car may have a faulty timing belt. I would recommend taking it to a certified mechanic right away to get it checked out.

Check your oil levels and make sure they are at the appropriate level. If they are low, this could be causing the noise. It's always a good idea to regularly check your oil to prevent any potential engine issues.

Another possibility could be a problem with the spark plugs. I would suggest getting them checked and replaced if needed. This could improve the performance and sound of your Audi's engine.