How can I fix the non-functioning headlights in my Audi 80?

I recently noticed that the headlights in my Audi 80 are not working. They do not turn on, even when I switch on the high beams. What could be the issue and how can I fix it?

One possible reason for the headlights not working could be a blown fuse. Check the fuse box and replace any blown fuses. If that doesn't fix the issue, it could be a problem with the headlight bulbs. Try replacing them and see if that works. If not, it may be a wiring issue that requires professional diagnosis and repair.