What does VAG group recommend for addressing faulty brake lights in an Audi 80?

I noticed that my brake lights were not functioning properly on my Audi 80. The bulbs and fuses seem fine. What is the recommended solution by the manufacturer?

According to VAG group, the most common cause of brake light failure in the Audi 80 is a faulty brake light switch. You can check for this by tracing the wiring from the brake pedal and replacing the switch if necessary.

Another potential culprit for faulty brake lights in the Audi 80 is a faulty ground wire. You can troubleshoot this by using a multimeter to check for continuity and repairing or replacing any damaged wires.