Power windows
The window regulator mechanism in the car door is a little emergency, but if there is a malfunction, then it is very unpleasant.
The window regulator mechanism in the car door is not very emergency, but in case of a malfunction it is very unpleasant, because you can’t leave a car with an open window anywhere. Failure in the closed position also causes trouble, especially in summer. 
Many of these failures can be avoided with only a minimum of care and maintenance.
The most common power window failures are broken cables, a bent mechanism, broken hooks holding the glass to the mechanism rail, a damaged electric motor, or a damaged control.
Important service
Most of these mistakes can be avoided or significantly delayed. It is enough to periodically service the mechanism. But no one does such maintenance, even the manufacturer did not provide for periodic lubrication of the moving parts of the mechanism.
No one looks into the power window control mechanism, because it is hidden in the door under the upholstery and most drivers seem to have the same working conditions as in the cabin. Unfortunately, there are no comfortable working conditions, because. through drain holes through which water, dust and dirt seep through, acting on the mechanism like an abrasive paste. Therefore, if possible, it is worth removing the upholstery for each door repair that requires removal of the upholstery. 
lubricate the mechanism. However, even without dismantling the door, some malfunctions can be avoided, since they arise due to the high resistance caused by the movement of the glass in the seals. There is a very simple, effective and inexpensive advice for this. It is enough from time to time to lubricate the seals in which the glass moves (with silicone). This should be done at least twice a year, especially before the winter season, so that the glass does not freeze to the seal. Lack of lubrication can cause the glass to “stick” to the gasket, and then failure will inevitably occur. And the weakest part will be damaged.
Be careful with the service
If the control is manual, we can control the force applied to the handle. However, with electrical control, the motor may be damaged if the switch fails to operate. 
load. With a strong engine, the windshield seal, the window lift mechanism, or the latches that secure the windshield to the mechanism can be torn off. And these parts are expensive and there is no replacement for most cars, you just have to go to an authorized service station and often pay even more than 1000 PLN.
If there is an electric control and the glass has not been used for a long time or the temperature is negative, do not use the auto function, immediately lowering the glass, but first briefly press the button and see what happens. happening. If the glass goes down without resistance, you can start the car, and when you press the glass does not move or some kind of crack is heard, stop lowering and go to the service. Subsequent attempts to lower the window can only increase the cost of the repair.
