Why is my Audi A1's check engine light on?

I recently noticed that my Audi A1's check engine light is on. I'm not sure why this is happening and I'm worried it could be a serious issue. What could be causing this and what steps should I take to resolve it?

It's important to get your car checked by a qualified mechanic as soon as possible. The check engine light can indicate a range of issues, from a loose gas cap to a malfunctioning sensor. It's best not to ignore it and have it diagnosed and repaired promptly.

One common cause of the check engine light is a faulty oxygen sensor. This can lead to decreased fuel efficiency and potentially cause damage to your car's catalytic converter if left unchecked. I suggest having it checked and replaced if necessary.

Another possibility is that your car's battery is getting old and needs to be replaced. As the battery ages, its ability to hold a charge decreases and can cause the check engine light to come on. Consider having your battery tested and replaced if needed.