How to diagnose and fix a broken ignition switch in an Audi 80?

I've noticed that my Audi 80's ignition switch seems to be malfunctioning. Sometimes it won't turn at all, other times the car won't start even when the key is turned. What could be causing this issue and how can I fix it?

The most common cause of a malfunctioning ignition switch in an Audi 80 is wear and tear over time. Replacing the switch will likely fix the issue, but it's also important to make sure all connections and wiring are in good condition. I recommend taking it to a trusted mechanic for proper diagnosis and repair.