How to Troubleshoot Malfunctioning Dashboard Lights in an Audi 80?

My Audi 80's dashboard lights have suddenly stopped working. How can I diagnose and fix this issue?

Check the dashboard light fuse first, as this is a common issue in Audi 80s. If the fuse is intact, then the problem could be with the light switch or the cluster. Both of these can be tested with a multimeter or by consulting a professional mechanic.

Make sure the dimmer switch for the dashboard lights is not turned off or set to the lowest level. If it is, adjust it to a brighter setting and see if the lights turn on. If not, then it could be an issue with the dimmer switch itself.

If you've recently changed your vehicle's battery or disconnected it, then the dashboard lights may have been reset. In this case, consult the vehicle's manual on how to re-enable them.