Why is my Audi A5 displaying a 'Check Engine' light and how do I fix it?

I recently noticed that my Audi A5 has a 'Check Engine' light illuminated on the dashboard. I'm not sure what could be causing it. Can someone provide some insight into why this light is on and what steps I can take to fix it?

The 'Check Engine' light can indicate a number of issues, ranging from a loose gas cap to a faulty sensor. Your best bet is to take your car to a certified mechanic and have them run a diagnostic test. They'll be able to identify the specific problem and recommend the best course of action.

The 'Check Engine' light can also be triggered by something as simple as a dirty air filter. Check your owner's manual to see if there are any recommended maintenance tasks for your mileage. If your air filter is due for a change, that could solve the issue.

In my experience, the 'Check Engine' light can be caused by a faulty oxygen sensor. This may seem like a minor issue, but it can actually impact your car's fuel economy and emissions. It's always best to have it checked out by a professional.