One problem related to brake disc rotor has been reported for the 1996 Volkswagen Jetta. The most recently reported issues are listed below.
The jack pops off the ridge under the car when lifting the car. This caused damage to the car and could have caused the car to drop on use while changing the tire. Second problem: on inspecting the front brake rotors, they were worn down more than what one would expect at 40k. There was still pad left. This would indicate poor materials in the rotor.