Why is my Audi A5 displaying the check engine light?

My Audi A5 has been running smoothly, but recently the check engine light has appeared on the dashboard. What could be causing this and should I be concerned?

There can be multiple reasons for the check engine light to appear on your Audi A5. It is important to get the car checked by a professional mechanic to identify the exact cause. Sometimes it could be a simple issue like a loose gas cap, while other times it may indicate a more serious problem with the engine.

I had a similar experience with my Audi A5 and it turned out to be a faulty oxygen sensor. You should definitely get it checked to avoid any potential damage to the engine. It is always better to be safe than sorry.