Under these buttons there are rather ingenious mechanisms. Ingenious, however quite often non-functional! Because it remains a problem that we have all known, for a smart forfour or another car. But before replacing the system, it is necessary to fully understand where the problem is coming from. An electrical fault problem? Gears seized? We will try to answer all of your questions, so this tutorial.
smart forfour: a window goes down but does not go up, or vice versa
Before replacing the element, let's quickly understand how this device works. When you push in or lift the switch from your window, there are two switches in the facts . The electrical connection goes just when it is activated. It is therefore likely that the problem originated from a false contact. Remove the block with a flat screwdriver, and examine the electrical wiring at their start and end. If the problem does not come from a poor electrical connection, in this situation it is the window regulator motor of your smart forfour that is involved. Gears may also be in poor condition. You can try to fix the problem, but usually you have to change the entire window regulator.
smart forfour: One window doesn't work at all
It is rather exceptional that the problem comes from the button, since it would be necessary that two connections or cables are faulty. However, you can check if you want to be sure. In this situation, the problem could come from the window regulator mechanism of the smart forfour. It may come from engine window lifter, or a faulty gear. Remove the door covers to see inside. Activate the window to see if the engine is running, and try to understand the cause of the problem. When gears jam, it is possible to dust and lubricate them. When nothing happens, you may need to have the entire window regulator system changed.
smart forfour: Electric window blocked
A window of your smart forfour is blocked. You try to reassemble it by pressing the switch or by hand, nothing to do it remains stuck. This problem could come from the window regulator motor, but usually it is conceivable to wind it by hand. It is therefore more possible that the glass has come out of its rail . By off-center, when you mount the window, the window hangs on the rail. In this case, there is no point in forcing. You will have to clear the door and check what is stuck inside. If the glass guides ever fail, you may need to replace them.
Conclusion:
To put it simply, a glass problem on a smart forfour can come from an electrical problem, the window regulator system, or the rails that hold it. You can post a comment if your problem is not mentioned above. Hoping that this post has served you well, be careful!