Why does my Audi A5's engine sound abnormal while accelerating?

I noticed that my Audi A5's engine has a strange noise whenever I accelerate. It's not a loud noise but it's definitely not the normal sound. Any ideas on what could be causing this?

It's possible that there is an issue with the spark plugs. I would recommend getting them checked and replaced if necessary. Also, make sure to regularly change your oil and keep up with the recommended maintenance for your engine.

Another potential cause could be a problem with the exhaust system. Have a mechanic check for any leaks or clogs that may be affecting the sound of your engine. Make sure to get any necessary repairs done promptly to avoid further damage.

Sometimes, a simple tune-up can solve issues with abnormal engine noise. If you haven't had one recently, consider getting one done. Also, check for any loose or damaged parts under the hood that may be contributing to the noise.