With great difficulty
You can tell if your window regulator is broken on a Volkswagen Beetle when you hear a big clunk as it goes down.
Follow the instructions on the link below. If you take your time and have patience, it isn't too bad. http://www.denlorstools.com/autoblog/2008/10/new-beetle-quarter-window-replacement-auto-tools/
The rear windows on a 1979 Super Beetle convertible are replaced by prying away the rubber molding holding the glass in place. The glass can then be slowly lifted away before new sealant and glass is installed.
it is riveted in.
The rear window of your 1998 BMW 323 convertible can be replaced. Most BMW dealerships service department will replace the window.
If the window regulator cable has failed, the entire regulator will have to be replaced.
To change the window regulator on a 1998 Pontiac Sunfire Convertible, first, remove the door panel by unscrewing the screws and gently prying it off. Disconnect the window switch harness and any other connected components. Next, remove the old regulator by unbolting it from the door and carefully taking it out, then install the new regulator by following the same steps in reverse. Finally, reattach the door panel and test the window operation.
To change the window regulator on a 1997 Honda Civic the door panel will need to be removed. Once removed the regulator will be visible and can be replaced by taking off the mounting hardware.
The panel where the regulator is detachable. You will be able to remove it very easily. When you remove the panel you will see the way how the regulator can be replaced.
If it worked before the regulator was replaced, something was done incorrectly. If it didn't work before the regulator was replaced, the electric motor, switch or wiring may be at fault.
The process to replacing the window regulator involves removing the door panel,connections to the window switch and also the door handle bezels. I've included a video that will show you exactly what tools you need and how to get at the window regulator so that it can be replaced.
the VW regulator system is very difficult to DIY. It is very well be worth your time to take it to a mechanic