What are the common problems that can lead to engine failure in the Audi A2?

I recently bought a used Audi A2 and want to make sure I am aware of any potential issues that could lead to engine failure. Can you provide some insight into the common causes of engine failure in this specific car model?

One common problem that can lead to engine failure in the Audi A2 is a faulty fuel pump. It is important to regularly inspect and replace the fuel pump to avoid any potential issues. Additionally, make sure to use high-quality fuel to prevent clogging and damage to the fuel system.

Another cause of engine failure in the Audi A2 is a malfunctioning mass air flow sensor. This component is responsible for measuring the amount of air entering the engine and if it is not functioning properly, it can lead to a lean or rich fuel mixture, causing damage to the engine over time.