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

I have a 2004 Audi A2 and recently the engine won't start. It just makes a clicking noise when I turn the key. What could be causing this issue and how can I fix it?

First, check your battery connections. Make sure they are clean and tight. If they are loose or dirty, this could be causing the clicking noise. If that doesn't work, try jumpstarting your car. If the engine still won't start, it could be an issue with your starter or ignition. It's best to take it to a mechanic for further diagnosis and repair.

I had the same issue with my Audi A2. It turned out to be a problem with the starter motor. I had to replace it and have had no issues since then. I suggest taking it to a trusted mechanic for proper diagnosis and repair.