How can I fix the engine misfire issue on my Audi A4?

I've recently noticed that my Audi A4 is experiencing engine misfires, causing it to run rough and have reduced power. What could be causing this issue and what steps can I take to fix it?

The most common cause of engine misfires on an Audi A4 is faulty ignition coils. These should be replaced as soon as possible to prevent further damage to the engine. Additionally, make sure the spark plugs and air filter are also in good condition.