Why does my check engine light keep coming on in my Audi A5?

I recently purchased a used Audi A5 and have noticed that the check engine light keeps turning on. Is there a common issue with this model or could it be a specific problem with my car? I want to make sure it gets fixed properly to avoid any potential future issues.

The check engine light is a warning sign that should not be ignored. It could be indicative of a number of issues, ranging from a loose gas cap to a more serious internal problem. It's best to have a certified mechanic run a diagnostic test to determine the root cause of the issue.

There have been reports of some Audi A5 models experiencing issues with the oxygen sensor, which can cause the check engine light to come on. It's recommended to have the sensor checked and replaced if necessary.