How can I fix the misfiring issue in my Audi A4?

I've noticed my Audi A4 is misfiring and I'm not sure what the cause could be. The check engine light is on and the car is shaking when I accelerate. What steps can I take to fix this issue?

The most common cause of a misfiring engine in Audi A4s is a faulty ignition coil. Have a mechanic check and replace any faulty coils.

Another possible cause could be a clogged fuel injector. Add a fuel injector cleaner to your fuel tank and see if this resolves the issue.

I've experienced this issue before and it turned out to be a faulty spark plug. Have your spark plugs checked and replaced if needed.