2000 Volkswagen Beetle Q&A
2000 Volkswagen Beetle Question: turn signals quit blinking
The emergency flasher unit is integrated with in the hazard warning light switch. Hazard warning light switch failure is quite common. Operate the hazard light switch on and off ten or fifteen times and see if the turn signals work. After that you will need a wiring diagram to start testing the electrical system. - patrick mannion
Erratic turn signal operation can be a result of a failing turn signal flasher relay which will require replacement.