Front/Rear Door Glass
Front Door Glass or Rear Door Glass on a vehicle is a side window that slides in a channel inside of the vehicle door. They can be operated ether manually (by winding a handle) or electronically (by a switch).
The mechanism normally consists of one or two rails inside the door itself. The rails consist of a plastic slider and a wheel on the top and bottom of the rails. The motor or winding handle turns a small spool of wire that runs in a loop between the rails. The wire pulls the plastic sliders up and down the rails. There are different types of plastic sliders, dependent on vehicle manufacturer. The most common type of fitment consists of one or two holes in the bottom of the glass. The glass simply pushes down into the sliders and they spring closed as the glass reaches the seating position.On older vehicles, before 2008, they sometime us a simple scissor mechanism, that can also be operated both electronically or manually.
Sometimes the wire mechanism will fail due to extended use. The wire will fray and eventually snap. Once the wire has snapped you can move the door glass up and down manually by pushing it with your hands. If this occurs, replacement wire kits can be purchased from auto factors or mail dealers. It is a well known fact, in the auto glass industry, that the most common snaps effect the Volkswagen, Skoda, and Audi range of vehicles.
