How do I fix my Audi A3's faulty ignition coil?

I recently noticed that my Audi A3 is experiencing rough idling and difficulty starting. After some research, I think the issue might be a faulty ignition coil. How can I fix this problem on my own, or should I take it to a mechanic?

Hello Eleanor, thanks for reaching out! Unfortunately, a faulty ignition coil is a common issue with Audi A3s. My first suggestion would be to take it to a mechanic for a proper diagnosis. Trying to fix it on your own can be difficult and may cause further damage to your car if not done correctly.