How to troubleshoot engine misfires on my Audi A3?

I have recently noticed my Audi A3's engine has been misfiring. It's been causing a rough idle and loss of power. I'm not sure what could be causing this and I want to know how to fix it.

First, check your spark plugs and ignition coils. They are common causes of engine misfires and are relatively easy and inexpensive to replace. If that doesn't solve the issue, it could be a problem with your fuel injectors or fuel pressure. It's best to take your car to a trusted mechanic for further diagnosis and repair.

Another common cause of engine misfires on Audi A3's is a faulty Mass Air Flow (MAF) sensor. This sensor helps regulate the amount of air entering the engine, and if it's not working properly, it can cause misfires. You can try cleaning the sensor first, but if that doesn't work, it may need to be replaced.

One thing to also check is the quality of fuel you're using. Using low quality or old fuel can cause engine misfires and other issues. Try filling up with a higher octane fuel and see if that makes a difference.