How do I troubleshoot an issue with my Audi 80's engine not starting?

I have an Audi 80 and I'm having trouble starting the engine. It just won't turn over. What could be the problem and how can I fix it?

First, make sure your battery is fully charged and that the connections are clean and tight.

If the battery is not the issue, it could be a problem with the starter or ignition switch. You may want to take it to a mechanic for further diagnosis.

It's also possible that your fuel pump is not functioning properly. Try turning the key to the 'On' position for a few seconds before starting the engine, this will allow the fuel pump to pressurize the system.