What are the most common causes of engine misfires in an Audi A3 1.8T FSI?

I recently noticed that my Audi A3 1.8T FSI is experiencing some engine misfires. Before taking it to a mechanic, I wanted to get an idea of what may be causing this issue. Any insight would be greatly appreciated.

One common cause of engine misfires in Audi A3 1.8T FSI is worn out spark plugs. It's recommended to replace them every 30,000 miles.

Another possible cause is a faulty ignition coil, which is responsible for delivering spark to the spark plugs. This can be easily diagnosed with a OBD-II scan tool.

A dirty or clogged fuel injector can also lead to engine misfires. Consider getting them cleaned or replaced every 50,000 miles.