Why does my Audi A2 produce black smoke?

I have noticed that my Audi A2 is emitting black smoke from the exhaust. What might be causing this and how can I address it?

The black smoke from your Audi A2 is likely due to an excessive amount of fuel being burned. This could be caused by a faulty fuel injector or an issue with the air-fuel ratio in your engine. It is best to have a mechanic take a look and diagnose the specific problem. In the meantime, make sure you are keeping up with regular maintenance and avoid accelerating too quickly or idling for long periods.