How do I troubleshoot my Audi A2's engine misfires?

I've noticed that my Audi A2's engine has been misfiring lately. What could be causing this and how can I fix it?

First and foremost, check your spark plugs and ignition coils. They are often the culprit for engine misfires. If they appear to be worn or damaged, replace them immediately.

Another common cause for engine misfires is a faulty fuel injector. Have a mechanic check and replace it if necessary.