What is the most common cause of engine misfires in Audi A4?

I have been noticing my Audi A4 has been experiencing engine misfires lately. I have already checked the spark plugs and ignition coils, but the issue still persists. What could be causing this? Is there something else I should check?

One common cause of engine misfires in Audi A4 is a faulty fuel injector. It's worth checking and possibly replacing if needed.

Another possible cause is a clogged air filter. Make sure to regularly clean or replace your air filter to avoid engine misfire issues.

I had a similar issue with my Audi A4 and after some troubleshooting, I found out it was due to a faulty mass air flow sensor. Consider checking and replacing it if necessary.