One problem related to seat belt has been reported for the 1999 Volkswagen Golf. The most recently reported issues are listed below.
This started to occur about 2009, about 6 years ago. When I pushed up the rear seats, I discovered that the center seat belt was tight and would not release. I couldn't even push the rear seat back down because the seat belt was so extremely tight. Within a year or two later, all of the rear seat belts locked up. The rear seats are now unsafe for passengers.