How do I replace a malfunctioning oxygen sensor in my Audi A2?

I've recently noticed that my Audi A2's engine light has turned on, indicating a problem with the oxygen sensor. Can someone guide me through the steps to replace it?

First, locate the oxygen sensor by referring to the car's manual. Then, use a wrench to loosen and remove the old sensor. Make sure to disconnect any wiring connected to it. Finally, install the new sensor and reattach the wiring. If unsure, get help from a mechanic.

Before replacing the oxygen sensor, try cleaning it with an oxygen sensor cleaner. This can sometimes solve the issue without needing a replacement. If it still doesn't work, then follow the steps mentioned in other answers.

It's important to use an oxygen sensor specifically designed for your Audi A2. This ensures the correct fit and functioning. It's also recommended to replace all sensors at once to avoid any future problems.