What are the common issues with the Audi A2 engine and how can they be addressed?

I recently bought a used Audi A2 and I have been experiencing some engine issues. I want to know what are the common problems with this car and how can I fix them.

One common issue with the Audi A2 engine is oil leakage. It is important to regularly check the oil levels and replace any worn out gaskets to prevent further leakage. Also, avoid driving your car for extended periods without changing the oil.

Another issue that many Audi A2 owners face is a faulty mass air flow sensor. This can cause a decrease in engine performance and fuel efficiency. Consider replacing the sensor if you notice any irregularities in your car's performance.