Power windows doors

Front door power window, manual/electric

Rear side door power window, manually operated/electrically operated

There are two types of window lifter for door windows on Skoda Octavia cars. The standard used power window is operated manually by handles on the doors. As special equipment, electrically controlled door window regulators can be ordered before purchasing the vehicle.

The glass windows of the doors are spatially profiled, and therefore their trajectory when lowering and raising must be curvilinear, and the power windows are adapted to this.


The design of the power windows is different for the front and rear doors, as well as for the right and left sides. The lowering and raising of the glass is carried out according to the parallelogram principle, and the glass is fixed in two places on the lower edge, guided both in the spatially profiled guide bar and in the rubber profiles nested in the door grooves.

Power windows are relatively simple compact mounting units. Metal parts are surface protected by zinc chromium plating. When mounted in doors, the power windows are only inserted with auxiliary bolts into the profiled holes, shifted down and the bolts are tightened. Power windows installed in the front doors have two running strips, each screwed at the top and bottom to the holes in the inner door sheet. Plastic pads are put on the racks of the profile of the slats, on which the glass holders are fixed. Glass holders are two steel brackets connected by a bolt, such as a collet, which, after inserting the glass (inserted into the rubber profile) are pressed against the glass by turning the screw. The course of the engines is provided by a steel cable attached to them and driven by the center of the bar. In the upper parts of the bars there are plastic rollers for the cable, in the lower parts the cable slides in plastic guides. The connection of the engines of both bars is made in a cross, so that when moving up and down they are parallel. Between the slats, the cable is laid in a flexible sheath.

A bracket is welded on one of the bars, carrying a drum winch - a cable leash. On the outer perimeter of the drum there is a helical groove, on which several turns of the cable are wound and which, when the drum is turned in one direction, are wound and twisted in the other direction. A spring brake is also inserted into the drum, which limits the sliding of the glass by pressure on its upper face. The movement of the drum is carried out either manually by a handle or by an electric motor. In addition to the type of drive, the power windows are generally the same for both versions.


The rear door window regulator is conceptually similar to the front door window regulator. However, since the glass is smaller and lighter, and is also guided on both sides along the entire stroke by rubber profiles, the window regulator is designed with only one running bar. On their overlays there are also two collet holders for fixing the glass. The cable winding mechanism, brake and cable routing in the roller, sled and flexible cables are similar to those in the front door window regulator. The manual version has a plastic handle with a free-turning knob, mounted on a polyhedral shaft. The handle is fastened by snapping a plastic ring into a groove under the multifaceted roller. The plastic ring is a part of the handle and when mounting or dismantling the handle, it only moves along the axis of the handle shoulder. Power windows are always installed with central locking and heated side mirrors. (For completeness, it should be added that both the central locking and the electrical control and heating of the exterior mirrors on some vehicle modifications can be installed separately).

The electric drive of the windows of the front and rear doors is carried out by independent electric motors, which are parts of the windows. The technical solution is of a high standard, documented also by the fact that the equipment has fuses against clamping, unplanned shutdown and other functions.

The panel with control buttons for all four windows is located on the driver's door pull rail. In addition, there is an electric control of the windows of the rear and front doors on the passenger side on each of the mentioned doors.

Window movement from down position or vice versa continues (at a steady vehicle temperature of about 20°C) three to four seconds. At low temperatures, the time is somewhat lengthened. Even if the power button is pressed for a very short time (no more than 0.3 seconds), lowering or moving the window will continue until the end of the stroke, even if the switch is not pressed. The course is interrupted by repeated momentary pressing of the button. In the electrical control there is, as already mentioned, a safety against clamping. This means that if the power window motor speed sensor registers an increase in resistance of 100 N, the device will automatically stop the movement of the window, and more pressure will turn on the reverse stroke and the window will fall by part of the stroke length or even to the bottom position. The safety catch is not active for the last 4 mm before the end of the upward movement and this is to ensure that the glass fits properly into the top of the rubber seal. The clamp safety device is also not active when the upper edge of the glass is below 200 mm (from top position). Said electric control solution prevents the window lifter from causing injury, for example, by trapping a hand or head in the glass. The force moving the glass is comparatively large. When disconnecting the battery and then reconnecting it, you must again set the upper position of the glass in the command node. This is done by holding the control button until the glass reaches the upper position and the mechanism turns off under the influence of resistance. This position of the glass will be fixed by the command unit. It is only after this so-called initiation that the functions of the power window described above are possible. It is possible to initiate both each window regulator independently and for all windows together, namely using the key of external locks. The key is inserted into the lock of the right or left front doors and held in the closed position. The constructive solution allows both the extension of windows at any time when closing the doors, and the opening of all windows at the same time, if you hold the key in the lock in the open position. Version of vehicles equipped with electrical functions of some door elements (electric window lowering, electric mirror control, heated mirrors, speaker operation, central locking) provides for the connection of these electrical elements to a common command node installed in the doors.