How to fix a misfiring engine in an Audi A3?

My Audi A3 engine is misfiring and I don't know what to do. Can someone give me some advice on how to fix it?

First, check the spark plugs to see if they need to be replaced. If that doesn't solve the issue, it could be a faulty ignition coil. Try replacing it and see if the engine stops misfiring.

Another common cause of engine misfiring in Audi A3s is a clogged fuel injector. Try using a fuel injector cleaner to unclog it.

Make sure to also check the air filter and see if it needs to be replaced. A dirty air filter can affect the engine's performance and cause it to misfire.