How do I troubleshoot my Audi A2's engine not starting?

I have an Audi A2 and recently it won't start. There are no warning lights or sounds but it just won't turn on. What could be the problem and how can I troubleshoot it?

First, check the battery connections and make sure they are clean and tight. Then, try jump starting the car. If that doesn't work, it could be an issue with the starter or ignition system. I recommend taking it to a mechanic for further diagnosis.

It's possible that your fuel pump or fuel filter is the issue. You can check this by listening for a buzzing sound when you turn the key to the on position. If you don't hear anything, it may need to be replaced. If you do hear a buzzing sound, try replacing the fuel filter first as it's a cheaper and easier fix.