There are a variety of components that all work together within your windshield wiper system on your Mercedes-Benz. The windshield wipers are important parts that are designed to help remove debris and moisture from your car's windshield so you can have a clear frame of vision. The windshield wiper system includes the wipers itself as well as the windshield wiper motor. The windshield wiper motor is what helps to control the movement of the wipers back and forth across the windshield. When you press the windshield wiper switch inside your vehicle, there is a signal sent to the motor that allows the wipers to move at different speeds. If your wiper blades aren't turning on when you click the switch, you likely have a problem with the motor itself. If your wipers do turn on but are moving slower than programmed, this can also be a sign of a failing motor. You can buy an OEM replacement window motor for your Mercedes-Benz here on our site.