If you detect a noise on your car, you are right to be aware of it and take it seriously, although it is plausible that nothing severe will result, it is also plausible that it is the precursor to a more major service. A window noise on Mercedes Benz GLS Class is luckily an indicator of a small adjustment / service, rather than a complicated procedure. To support you in your research, we have decided to write this article to show you the most likely solutions to your problem. First we will talk about the window noises on Mercedes Benz GLS Class of clicking type, then those of squeaking type and finally the window noises on Mercedes Benz GLS Class that come from the window lift motor.
I notice a noise of a Mercedes Benz GLS Class window: clicking
A window noise on Mercedes Benz GLS Class can be due to many problems, if in your case you experience a window noise on Mercedes Benz GLS Class that sounds like a click, like glass for example, it is plausible that one of your two lower glass fasteners has broken. In fact, they are often manufactured from polymer and their strength is not always that good. To check this you will have to take out your door pannel and check their condition. If you notice a window noise on Mercedes Benz GLS Class but you have the feeling that it vibrates when it is opened, it can be the wear of the seals or the position of your rubber guides that causes this play. If you notice a clicking noise on Mercedes Benz GLS Class, but after testing your window is not the cause, check this article.
I notice a squeaky Mercedes Benz GLS Class window noise
Second probability, you notice a window noise on Mercedes Benz GLS Class that looks more like a squeaking or grinding sound, in this case, it is quite plausible that it is a drying of the seals and/or the mechanism that is involved. In fact, because of the sun or heat, your seals can dry up and trigger this unpleasant window noise on Mercedes Benz GLS Class. To eliminate it, you will have to take apart the door panel and grease your seals with a non-corrosive product for plastic, it is also plausible that it is your device that makes this noise, in this case, the same answer but on the device directly. If this squeaking noise after examining is not from your door, browse this article about squeaking noises on Mercedes Benz GLS Class to research the source.
I notice a noise of motor-type Mercedes Benz GLS Class glass
Finally, if you discern a window noise on Mercedes Benz GLS Class that looks like an electric motor noise when you move your window up or down, it is very likely that your window electric motor lift is at the end of its life. In most cases this should be associated with a much longer raising or opening time. Verify the motor condition and have it replaced if required. If this noise is not from your window motor but from something else in your door, check out this article on door noises on Mercedes Benz GLS Class.